+++ /dev/null
-builds/
-deps/
+++ /dev/null
-#
-# Copyright 2016 RIFT.io Inc
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-#
-
-BUILD_DIR = .
-
-CHARMS:= vpe-router vyos-proxy pingpong flownac sandvine-pts-proxy
-CHARM_SRC_DIR := layers
-CHARM_BUILD_DIR := $(BUILD_DIR)/builds
-
-CHARM_SRC_DIRS := $(addprefix $(CHARM_SRC_DIR)/, $(CHARMS))
-CHARM_BUILD_DIRS := $(addprefix $(CHARM_BUILD_DIR)/, $(CHARMS))
-
-all: $(CHARM_BUILD_DIRS)
-
-clean:
- -@ $(RM) -rf $(CHARM_BUILD_DIR)
-
-$(CHARM_BUILD_DIR)/%: $(CHARM_SRC_DIR)/%
- charm-build -o $(BUILD_DIR) $<
+++ /dev/null
-# Juju Charm usage and development
-
-This document is intended to provide a brief overview of the components included
-in this repository as well as recommendations for how to develop, build, and
-publish charms.
-
-Please read the [develper geting started guide](https://jujucharms.com/docs/2.0/developer-getting-started) before proceeding.
-
-## Directory structure
-
-```
-.
-├── builds
-│  └── vpe-router
-├── interfaces
-├── layers
-│  └── vpe-router
-└── module-blueprints
-```
-
-The source code of a charm is referred to as a "layer". This layer is compiled
-into a charm and placed in the `builds/` directory. Interfaces, currently
-unused in this context, extend relationships between applications.
-
-## Development workflow
-### Prepare your build environment
-```
-# Source the environment variables JUJU_REPOSITORY, INTERFACE_PATH, and
-# LAYER_PATH, which are needed to build a charm. You could also place these
-# in your $HOME/.bashrc
-$ source juju-env.sh
-```
-#### Install the `charm` command, either via apt:
-
-```
-$ sudo apt install charm
-```
-
-or with [snap](http://snapcraft.io/)
-
-```
-$ snap install charm --edge
-```
-
-To build a charm, simply run `charm build` inside of a layer.
-```
-$ cd $LAYER_PATH/vpe-router
-$ charm build
-$ charm deploy $JUJU_REPOSITORY/builds/vpe-router
-```
-
-## Publishing to jujucharms.com
-
-Publishing to the Juju Charm store requires a launchpad login. With that, login
-to [jujucharms.com](http://www.jujucharms.com/).
-
-Next, you'll use the charm command to publish your compiled charm. This will
-put the charm into the store where it can be used by anyone with access.
-
-For example, if I wanted to publish the latest version of the vpe-router charm:
-
-# Step 1: Upload the charm to the "unpublished" channel
-```
-$ cd $JUJU_REPOSITORY/builds
-$ charm push vpe-router/ cs:~aisrael/vpe-router
-url: cs:~aisrael/vpe-router-0
-channel: unpublished
-```
-
-# There are four channels to release a charm: edge, beta, candidate, and stable
-```
-$ charm release cs:~aisrael/vpe-router-0 --channel=edge
-url: cs:~aisrael/vpe-router-0
-channel: edge
-```
-The charm can then be deployed directly from the charm store:
-```
-$ juju deploy cs:~aisrael/vpe-router --channel=edge
-```
--- /dev/null
+#
+# Copyright 2016 RIFT.io Inc
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+#
+
+BUILD_DIR = .
+
+CHARMS:= vpe-router vyos-proxy pingpong flownac sandvine-pts-proxy
+CHARM_SRC_DIR := layers
+CHARM_BUILD_DIR := $(BUILD_DIR)/builds
+
+CHARM_SRC_DIRS := $(addprefix $(CHARM_SRC_DIR)/, $(CHARMS))
+CHARM_BUILD_DIRS := $(addprefix $(CHARM_BUILD_DIR)/, $(CHARMS))
+
+all: $(CHARM_BUILD_DIRS)
+
+clean:
+ -@ $(RM) -rf $(CHARM_BUILD_DIR)
+
+$(CHARM_BUILD_DIR)/%: $(CHARM_SRC_DIR)/%
+ charm-build -o $(BUILD_DIR) $<
--- /dev/null
+# Juju Charm usage and development
+
+This document is intended to provide a brief overview of the components included
+in this repository as well as recommendations for how to develop, build, and
+publish charms.
+
+Please read the [develper geting started guide](https://jujucharms.com/docs/2.0/developer-getting-started) before proceeding.
+
+## Directory structure
+
+```
+.
+├── builds
+│  └── vpe-router
+├── interfaces
+├── layers
+│  └── vpe-router
+└── module-blueprints
+```
+
+The source code of a charm is referred to as a "layer". This layer is compiled
+into a charm and placed in the `builds/` directory. Interfaces, currently
+unused in this context, extend relationships between applications.
+
+## Development workflow
+### Prepare your build environment
+```
+# Source the environment variables JUJU_REPOSITORY, INTERFACE_PATH, and
+# LAYER_PATH, which are needed to build a charm. You could also place these
+# in your $HOME/.bashrc
+$ source juju-env.sh
+```
+#### Install the `charm` command, either via apt:
+
+```
+$ sudo apt install charm
+```
+
+or with [snap](http://snapcraft.io/)
+
+```
+$ snap install charm --edge
+```
+
+To build a charm, simply run `charm build` inside of a layer.
+```
+$ cd $LAYER_PATH/vpe-router
+$ charm build
+$ charm deploy $JUJU_REPOSITORY/builds/vpe-router
+```
+
+## Publishing to jujucharms.com
+
+Publishing to the Juju Charm store requires a launchpad login. With that, login
+to [jujucharms.com](http://www.jujucharms.com/).
+
+Next, you'll use the charm command to publish your compiled charm. This will
+put the charm into the store where it can be used by anyone with access.
+
+For example, if I wanted to publish the latest version of the vpe-router charm:
+
+# Step 1: Upload the charm to the "unpublished" channel
+```
+$ cd $JUJU_REPOSITORY/builds
+$ charm push vpe-router/ cs:~aisrael/vpe-router
+url: cs:~aisrael/vpe-router-0
+channel: unpublished
+```
+
+# There are four channels to release a charm: edge, beta, candidate, and stable
+```
+$ charm release cs:~aisrael/vpe-router-0 --channel=edge
+url: cs:~aisrael/vpe-router-0
+channel: edge
+```
+The charm can then be deployed directly from the charm store:
+```
+$ juju deploy cs:~aisrael/vpe-router --channel=edge
+```
--- /dev/null
+# Set the Juju env variables for building a layer
+export JUJU_REPOSITORY=`pwd`
+export INTERFACE_PATH=$JUJU_REPOSITORY/interfaces
+export LAYER_PATH=$JUJU_REPOSITORY/layers
--- /dev/null
+
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
+
+ "License" shall mean the terms and conditions for use, reproduction,
+ and distribution as defined by Sections 1 through 9 of this document.
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+ meet the following conditions:
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+ (b) You must cause any modified files to carry prominent notices
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+ the conditions stated in this License.
+
+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
+ except as required for reasonable and customary use in describing the
+ origin of the Work and reproducing the content of the NOTICE file.
+
+ 7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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+ of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
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+ risks associated with Your exercise of permissions under this License.
+
+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
+ incidental, or consequential damages of any character arising as a
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+
+ 9. Accepting Warranty or Additional Liability. While redistributing
+ the Work or Derivative Works thereof, You may choose to offer,
+ and charge a fee for, acceptance of support, warranty, indemnity,
+ or other liability obligations and/or rights consistent with this
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+ on Your own behalf and on Your sole responsibility, not on behalf
+ of any other Contributor, and only if You agree to indemnify,
+ defend, and hold each Contributor harmless for any liability
+ incurred by, or claims asserted against, such Contributor by reason
+ of your accepting any such warranty or additional liability.
+
+ END OF TERMS AND CONDITIONS
+
+ APPENDIX: How to apply the Apache License to your work.
+
+ To apply the Apache License to your work, attach the following
+ boilerplate notice, with the fields enclosed by brackets "[]"
+ replaced with your own identifying information. (Don't include
+ the brackets!) The text should be enclosed in the appropriate
+ comment syntax for the file format. We also recommend that a
+ file or class name and description of purpose be included on the
+ same "printed page" as the copyright notice for easier
+ identification within third-party archives.
+
+ Copyright [yyyy] [name of copyright owner]
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
--- /dev/null
+# Overview
+
+This charm provides basic network utilities that can be run from a Juju-deployed
+machine.
+
+# Usage
+
+To deploy the charm:
+```bash
+$ juju deploy cs:~nfv/netutils
+```
+
+To run an action:
+```bash
+$ juju run-action netutils/0 ping destination=google.com
+$ juju run-action netutils/0 traceroute destination=google.com
+```
+
+To fetch the output of an action:
+```bash
+$ juju show-action-output 026b3d4c-0bb2-4818-8d24-9855936cdcdf
+results:
+ output: |
+ traceroute to google.com (216.58.198.78), 30 hops max, 60 byte packets
+ 1 ec2-79-125-0-86.eu-west-1.compute.amazonaws.com (79.125.0.86) 1.431 ms 1.410 ms 1.380 ms
+ 2 100.64.2.73 (100.64.2.73) 1.647 ms 100.64.2.103 (100.64.2.103) 1.247 ms 100.64.2.121 (100.64.2.121) 1.224 ms
+ 3 100.64.0.232 (100.64.0.232) 1.296 ms 100.64.0.184 (100.64.0.184) 1.515 ms 100.64.0.234 (100.64.0.234) 1.079 ms
+ 4 100.64.16.37 (100.64.16.37) 0.377 ms 100.64.16.49 (100.64.16.49) 0.347 ms 100.64.16.1 (100.64.16.1) 0.340 ms
+ 5 176.32.107.12 (176.32.107.12) 0.739 ms 176.32.107.4 (176.32.107.4) 0.875 ms 0.748 ms
+ 6 178.236.0.111 (178.236.0.111) 0.650 ms 0.641 ms 0.645 ms
+ 7 72.14.215.85 (72.14.215.85) 0.544 ms 1.508 ms 1.498 ms
+ 8 209.85.252.198 (209.85.252.198) 0.680 ms 0.659 ms 0.618 ms
+ 9 64.233.174.27 (64.233.174.27) 0.690 ms 0.682 ms 0.634 ms
+ 10 dub08s02-in-f14.1e100.net (216.58.198.78) 0.568 ms 0.560 ms 0.595 ms
+status: completed
+timing:
+ completed: 2016-06-29 14:50:04 +0000 UTC
+ enqueued: 2016-06-29 14:50:03 +0000 UTC
+ started: 2016-06-29 14:50:03 +0000 UTC
+```
+## iperf3
+
+Because iperf3 has a client and server component, the netutils charm can operate
+as both. Setting the iperf3 configuration value to True will start iperf3 in
+server mode, running as a daemon.
+```
+$ juju deploy cs:~nfv/netutils client
+$ juju deploy cs:~nfv/netutils server iperf3=True
+$ juju run-action client/0 iperf host=<ip of server> [...]
+```
+
+## Scale out Usage
+
+With great scalability comes great power, but please don't use this to DDoS anyone without their permission.
+
+## Known Limitations and Issues
+
+# Contact Information
+
+## Contributing to the charm
+
+ - The compiled charm can be found [here](https://www.jujucharms.com/u/nfv/netutils).
+ - [layer/netutils](https://osm.etsi.org/gitweb/?p=osm/juju-charms.git;a=summary/) contains the source of the layer.
+ - Please add any bugs or feature requests to the [bugzilla](https://osm.etsi.org/bugzilla/buglist.cgi?component=Juju-charms&list_id=426&product=OSM&resolution=---).
--- /dev/null
+nmap:
+ description: "nmap a thing!"
+ params:
+ destination:
+ description: "destination to scan"
+ type: string
+ required:
+ - destination
+ping:
+ description: 'ping a thing!'
+ params:
+ count:
+ description: "Stop after sending count ECHO_REQUEST packets"
+ type: integer
+ default: 30
+ destination:
+ description: "destination of ping request"
+ type: string
+ required:
+ - destination
+traceroute:
+ description: 'trace a thing!'
+ params:
+ hops:
+ description: "Stop tracing after count hops"
+ type: integer
+ default: 30
+ destination:
+ description: "destination of traceroute request"
+ type: string
+ required:
+ - destination
+dig:
+ description: "DNS lookup"
+ params:
+ nsserver:
+ description: "The nameserver to lookup against."
+ type: string
+ host:
+ description: "The host to lookup"
+ type: string
+ type:
+ description: "The DNS record type to lookup"
+ type: string
+ required:
+ - host
+iperf:
+ description: ""
+ params:
+ host:
+ description: ""
+ type: string
+ port:
+ description: ""
+ type: integer
+ default: 5201
+ format:
+ description: ""
+ type: string
+ interval:
+ description: ""
+ type: string
+ affinity:
+ description: ""
+ type: string
+ udp:
+ description: "Use UDP rather than TCP"
+ type: boolean
+ default: False
+ bandwidth:
+ description: "Set the target bandwidth to n bits/sec (default 1Mbit/sec for UDP, unlimited for TCP)"
+ type: integer
+ default: 1
+ time:
+ description: "Time, in seconds, to transmit for."
+ type: integer
+ default: 10
+ blockcount:
+ description: "The number of blocks to transmit"
+ type: integer
+ length:
+ description: "The length of buffer to read or write (default 128KB for TCP, 8KB for UDP)"
+ type: integer
+ parallel:
+ description: "The number of parallel client streams to run"
+ type: integer
+ reverse:
+ description: "Run in reverse mode (server sends, client receives)."
+ type: boolean
+ default: false
+ window:
+ description: "Window size/socket buffer size."
+ type: integer
+ bind:
+ description: "Bind to a specific interface or multicast address"
+ type: string
+ mss:
+ description: "Set the TCP maximum segment size (MTU - 40 bytes)"
+ type: integer
+ no-delay:
+ description: "Set the TCP no delay, disabling Nagle's algorithm."
+ type: boolean
+ default: false
+ ipv4:
+ description: "Only use IPv4"
+ type: boolean
+ default: false
+ ipv6:
+ description: "Only use IPv6"
+ type: boolean
+ default: false
+ tos:
+ description: "Set the IP 'type of service'"
+ type: integer
+ flowlabel:
+ description: "Set the IPv6 flow label (linux-only)"
+ type: string
+ zerocopy:
+ description: "Use a 'zero copy' method of sending data, such as sendfile(s), instead of the usual write(2)."
+ type: boolean
+ default: false
+ omit:
+ description: "Omit the first n seconds of the test, to skip past the TCP slow-start period."
+ type: integer
+ title:
+ description: "Prefix every output line with this string."
+ type: string
+ congestion:
+ description: "Set the linux congestion control algorithm."
+ type: string
+
+ required:
+ - host
--- /dev/null
+#!/usr/bin/env python3
+import sys
+sys.path.append('lib')
+
+from charms.reactive import main
+from charms.reactive import set_state
+from charmhelpers.core.hookenv import action_fail
+
+"""
+`set_state` only works here because it's flushed to disk inside the `main()`
+loop. remove_state will need to be called inside the action method.
+"""
+set_state('actions.dig')
+
+try:
+ main()
+except Exception as e:
+ action_fail(repr(e))
--- /dev/null
+#!/usr/bin/env python3
+import sys
+sys.path.append('lib')
+
+from charms.reactive import main
+from charms.reactive import set_state
+from charmhelpers.core.hookenv import action_fail
+
+"""
+`set_state` only works here because it's flushed to disk inside the `main()`
+loop. remove_state will need to be called inside the action method.
+"""
+set_state('actions.iperf3')
+
+try:
+ main()
+except Exception as e:
+ action_fail(repr(e))
--- /dev/null
+#!/usr/bin/env python3
+import sys
+sys.path.append('lib')
+
+from charms.reactive import main
+from charms.reactive import set_state
+from charmhelpers.core.hookenv import action_fail
+
+"""
+`set_state` only works here because it's flushed to disk inside the `main()`
+loop. remove_state will need to be called inside the action method.
+"""
+set_state('actions.nmap')
+
+try:
+ main()
+except Exception as e:
+ action_fail(repr(e))
--- /dev/null
+#!/usr/bin/env python3
+import sys
+sys.path.append('lib')
+
+from charms.reactive import main
+from charms.reactive import set_state
+from charmhelpers.core.hookenv import action_fail
+
+"""
+`set_state` only works here because it's flushed to disk inside the `main()`
+loop. remove_state will need to be called inside the action method.
+"""
+set_state('actions.ping')
+
+try:
+ main()
+except Exception as e:
+ action_fail(repr(e))
--- /dev/null
+#!/usr/bin/env python3
+import sys
+sys.path.append('lib')
+
+from charms.reactive import main
+from charms.reactive import set_state
+from charmhelpers.core.hookenv import action_fail
+
+"""
+`set_state` only works here because it's flushed to disk inside the `main()`
+loop. remove_state will need to be called inside the action method.
+"""
+set_state('actions.traceroute')
+
+try:
+ main()
+except Exception as e:
+ action_fail(repr(e))
--- /dev/null
+options:
+ iperf3:
+ type: boolean
+ default: false
+ description: "Enabling this option will start iperf3 in server mode."
--- /dev/null
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--- /dev/null
+repo: git@github.com:AdamIsrael/layer-netutils.git
+includes: ['layer:basic', 'layer:sshproxy']
+options:
+ basic:
+ packages:
+ - traceroute
+ - nmap
+ - iperf3
--- /dev/null
+name: netutils
+summary: A suite of network-related utilities.
+maintainer: Adam Israel <adam.israel@canonical.com>
+description: |
+ A suite of network-related utilities, such as ping and traceroute, that
+ can be deployed into a data center in order to diagnose connectivity issues.
+tags:
+ # https://jujucharms.com/docs/stable/authors-charm-metadata
+ - ops
+ - network
+ - performance
+series:
+ - trusty
+ - xenial
+subordinate: false
--- /dev/null
+from charmhelpers.core.hookenv import (
+ action_get,
+ action_fail,
+ action_set,
+ config,
+ log,
+ status_set,
+)
+
+from charms.reactive import (
+ remove_state as remove_flag,
+ set_state as set_flag,
+ when,
+ when_not,
+)
+import charms.sshproxy
+from subprocess import CalledProcessError
+
+
+@when_not('netutils.ready')
+def ready():
+ status_set('active', 'Ready!')
+ set_flag('netutils.ready')
+
+
+@when('actions.dig')
+def dig():
+ err = ''
+ try:
+ nsserver = action_get('nsserver')
+ host = action_get('host')
+ nstype = action_get('type')
+ cmd = "dig"
+
+ if nsserver:
+ cmd += " @{}".format(nsserver)
+ if host:
+ cmd += " {}".format(host)
+ else:
+ action_fail('Hostname required.')
+ if nstype:
+ cmd += " -t {}".format(nstype)
+
+ result, err = charms.sshproxy._run(cmd)
+ except:
+ action_fail('dig command failed:' + err)
+ else:
+ action_set({'outout': result})
+ finally:
+ remove_flag('actions.dig')
+
+
+@when('actions.nmap')
+def nmap():
+ err = ''
+ try:
+ result, err = charms.sshproxy._run(
+ 'nmap {}'.format(action_get('destination'))
+ )
+ except:
+ action_fail('nmap command failed:' + err)
+ else:
+ action_set({'outout': result})
+ finally:
+ remove_flag('actions.nmap')
+
+
+@when('actions.ping')
+def ping():
+ err = ''
+ try:
+ result, err = charms.sshproxy._run('ping -qc {} {}'.format(
+ action_get('count'), action_get('destination'))
+ )
+
+ except:
+ action_fail('ping command failed:' + err)
+ else:
+ # Here you can send results back from ping, if you had time to parse it
+ action_set({'output': result})
+ finally:
+ remove_flag('actions.ping')
+
+
+@when('actions.traceroute')
+def traceroute():
+ try:
+ result, err = charms.sshproxy._run(
+ 'traceroute -m {} {}'.format(
+ action_get('hops'),
+ action_get('destination')
+ )
+ )
+ except:
+ action_fail('traceroute command failed')
+ else:
+ # Here you can send results back from ping, if you had time to parse it
+ action_set({'output': result})
+ finally:
+ remove_flag('actions.traceroute')
+
+
+@when('actions.iperf3')
+def iperf3():
+ err = ''
+ try:
+ # TODO: read all the flags via action_get and build the
+ # proper command line to run iperf3
+ host = action_get('host')
+
+ cmd = 'iperf3 -c {} --json'.format(host)
+ result, err = charms.sshproxy._run(cmd)
+ except CalledProcessError as e:
+ action_fail('iperf3 command failed:' + e.output)
+ else:
+ action_set({'outout': result})
+ finally:
+ remove_flag('actions.iperf3')
+
+
+@when('config.changed')
+def config_changed():
+ """ Handle configuration changes """
+ cfg = config()
+ if cfg.changed('iperf3'):
+ if cfg['iperf3']:
+ # start iperf in server + daemon mode
+ cmd = "iperf3 -s -D"
+ else:
+ cmd = "killall iperf3"
+ try:
+ charms.sshproxy._run(cmd)
+ log("iperf3 stopped.")
+ except CalledProcessError:
+ log("iperf3 not running.")
+ else:
+ log("iperf3 started.")
--- /dev/null
+#!/bin/bash
+
+sudo add-apt-repository ppa:juju/stable -y
+sudo apt-get update
+sudo apt-get install amulet python-requests -y
--- /dev/null
+#!/usr/bin/python3
+
+import amulet
+import requests
+import unittest
+
+
+class TestCharm(unittest.TestCase):
+ def setUp(self):
+ self.d = amulet.Deployment()
+
+ self.d.add('layer-netutils')
+ self.d.expose('layer-netutils')
+
+ self.d.setup(timeout=900)
+ self.d.sentry.wait()
+
+ self.unit = self.d.sentry['layer-netutils'][0]
+
+ def test_service(self):
+ # test we can access over http
+ page = requests.get('http://{}'.format(self.unit.info['public-address']))
+ self.assertEqual(page.status_code, 200)
+ # Now you can use self.d.sentry[SERVICE][UNIT] to address each of the units and perform
+ # more in-depth steps. Each self.d.sentry[SERVICE][UNIT] has the following methods:
+ # - .info - An array of the information of that unit from Juju
+ # - .file(PATH) - Get the details of a file on that unit
+ # - .file_contents(PATH) - Get plain text output of PATH file from that unit
+ # - .directory(PATH) - Get details of directory
+ # - .directory_contents(PATH) - List files and folders in PATH on that unit
+ # - .relation(relation, service:rel) - Get relation data from return service
--- /dev/null
+# Overview
+
+This repository contains the [Juju] layer that represents a working example of a proxy charm.
+
+# What is a proxy charm?
+
+A proxy charm is a limited type of charm that does not interact with software running on the same host, such as controlling and configuring a remote device (a static VM image, a router/switch, etc.). It cannot take advantage of some of Juju's key features, such as [scaling], [relations], and [leadership].
+
+Proxy charms are primarily a stop-gap, intended to prototype quickly, with the end goal being to develop it into a full-featured charm, which installs and executes code on the same machine as the charm is running.
+
+# Usage
+
+```bash
+# Clone this repository
+git clone https://osm.etsi.org/gerrit/osm/juju-charms
+cd juju-charms
+
+# Setup environment variables
+source juju-env.sh
+
+cd layers/pingpong
+charm build
+
+# Examine the built charm
+cd ../../builds/pingpong
+ls
+actions config.yaml icon.svg metadata.yaml tests
+actions.yaml copyright layer.yaml reactive tox.ini
+bin deps lib README.md wheelhouse
+builds hooks Makefile requirements.txt
+
+```
+
+You can view a screencast of this: https://asciinema.org/a/96738
+
+The `charm build` process combines this pingpong layer with each layer that it
+has included in the `metadata.yaml` file, along with their various dependencies.
+
+This built charm is what will then be used by the SO to communicate with the
+VNF.
+
+# Configuration
+
+The pingpong charm has several configuration properties that can be set via
+the SO:
+
+- ssh-hostname
+- ssh-username
+- ssh-password
+- ssh-private-key
+- mode
+
+The ssh-* keys are included by the `sshproxy` layer, and enable the charm to
+connect to the VNF image.
+
+The mode key must be one of two values: `ping` or `pong`. This informs the
+charm as to which function it is serving.
+
+# Contact Information
+For support, please send an email to the [OSM Tech] list.
+
+
+[OSM Tech]: mailto:OSM_TECH@list.etsi.org
+[Juju]: https://jujucharms.com/about
+[configure]: https://jujucharms.com/docs/2.0/charms-config
+[scaling]: https://jujucharms.com/docs/2.0/charms-scaling
+[relations]: https://jujucharms.com/docs/2.0/charms-relations
+[leadership]: https://jujucharms.com/docs/2.0/developer-leadership
+[created your charm]: https://jujucharms.com/docs/2.0/developer-getting-started
+
+
+
+
+
+-----
+
+
+# Integration
+
+After you've [created your charm], open `interfaces.yaml` and add
+`layer:sshproxy` to the includes stanza, as shown below:
+```
+includes: ['layer:basic', 'layer:sshproxy']
+```
+
+## Reactive states
+
+This layer will set the following states:
+
+- `sshproxy.configured` This state is set when SSH credentials have been supplied to the charm.
+
+
+## Example
+In `reactive/mycharm.py`, you can add logic to execute commands over SSH. This
+example is run via a `start` action, and starts a service running on a remote
+host.
+```
+...
+import charms.sshproxy
+
+
+@when('sshproxy.configured')
+@when('actions.start')
+def start():
+ """ Execute's the command, via the start action` using the
+ configured SSH credentials
+ """
+ sshproxy.ssh("service myservice start")
+
+```
+
+## Actions
+This layer includes a built-in `run` action useful for debugging or running arbitrary commands:
+
+```
+$ juju run-action mycharm/0 run command=hostname
+Action queued with id: 014b72f3-bc02-4ecb-8d38-72bce03bbb63
+
+$ juju show-action-output 014b72f3-bc02-4ecb-8d38-72bce03bbb63
+results:
+ output: juju-66a5f3-11
+status: completed
+timing:
+ completed: 2016-10-27 19:53:49 +0000 UTC
+ enqueued: 2016-10-27 19:53:44 +0000 UTC
+ started: 2016-10-27 19:53:48 +0000 UTC
+
+```
+## Known Limitations and Issues
+
+### Security issues
+
+- Password and key-based authentications are supported, with the caveat that
+both (password and private key) are stored plaintext within the Juju controller.
+
+# Configuration and Usage
+
+This layer adds the following configuration options:
+- ssh-hostname
+- ssh-username
+- ssh-password
+- ssh-private-key
+
+Once [configure] those values at any time. Once they are set, the `sshproxy.configured` state flag will be toggled:
+
+```
+juju deploy mycharm ssh-hostname=10.10.10.10 ssh-username=ubuntu ssh-password=yourpassword
+```
+or
+```
+juju deploy mycharm ssh-hostname=10.10.10.10 ssh-username=ubuntu ssh-private-key="cat `~/.ssh/id_rsa`"
+```
+
+
+# Contact Information
+Homepage: https://github.com/AdamIsrael/layer-sshproxy
+
+[Juju]: https://jujucharms.com/about
+[configure]: https://jujucharms.com/docs/2.0/charms-config
+[scaling]: https://jujucharms.com/docs/2.0/charms-scaling
+[relations]: https://jujucharms.com/docs/2.0/charms-relations
+[leadership]: https://jujucharms.com/docs/2.0/developer-leadership
+[created your charm]: https://jujucharms.com/docs/2.0/developer-getting-started
--- /dev/null
+set-server:
+ description: "Set the target IP address and port"
+ params:
+ server-ip:
+ description: "IP on which the target service is listening."
+ type: string
+ default: ""
+ server-port:
+ description: "Port on which the target service is listening."
+ type: integer
+ default: 5555
+ required:
+ - server-ip
+set-rate:
+ description: "Set the rate of packet generation."
+ params:
+ rate:
+ description: "Packet rate."
+ type: integer
+ default: 5
+get-stats:
+ description: "Get the stats."
+get-state:
+ description: "Get the admin state of the target service."
+get-rate:
+ description: "Get the rate set on the target service."
+get-server:
+ description: "Get the target server and IP set"
+start-traffic:
+ description: "Start the traffic generator or echo."
+stop-traffic:
+ description: "Stop the traffic generator or echo."
--- /dev/null
+#!/usr/bin/env python3
+import sys
+sys.path.append('lib')
+
+from charms.reactive import main
+from charms.reactive import set_state
+from charmhelpers.core.hookenv import action_fail
+
+"""
+`set_state` only works here because it's flushed to disk inside the `main()`
+loop. remove_state will need to be called inside the action method.
+"""
+set_state('actions.get-rate')
+
+try:
+ main()
+except Exception as e:
+ action_fail(repr(e))
--- /dev/null
+#!/usr/bin/env python3
+import sys
+sys.path.append('lib')
+
+from charms.reactive import main
+from charms.reactive import set_state
+from charmhelpers.core.hookenv import action_fail
+
+"""
+`set_state` only works here because it's flushed to disk inside the `main()`
+loop. remove_state will need to be called inside the action method.
+"""
+set_state('actions.get-server')
+
+try:
+ main()
+except Exception as e:
+ action_fail(repr(e))
--- /dev/null
+#!/usr/bin/env python3
+import sys
+sys.path.append('lib')
+
+from charms.reactive import main
+from charms.reactive import set_state
+from charmhelpers.core.hookenv import action_fail
+
+"""
+`set_state` only works here because it's flushed to disk inside the `main()`
+loop. remove_state will need to be called inside the action method.
+"""
+set_state('actions.get-state')
+
+try:
+ main()
+except Exception as e:
+ action_fail(repr(e))
--- /dev/null
+#!/usr/bin/env python3
+import sys
+sys.path.append('lib')
+
+from charms.reactive import main
+from charms.reactive import set_state
+from charmhelpers.core.hookenv import action_fail
+
+"""
+`set_state` only works here because it's flushed to disk inside the `main()`
+loop. remove_state will need to be called inside the action method.
+"""
+set_state('actions.get-stats')
+
+try:
+ main()
+except Exception as e:
+ action_fail(repr(e))
--- /dev/null
+#!/usr/bin/env python3
+import sys
+sys.path.append('lib')
+
+from charms.reactive import main
+from charms.reactive import set_state
+from charmhelpers.core.hookenv import action_fail
+
+"""
+`set_state` only works here because it's flushed to disk inside the `main()`
+loop. remove_state will need to be called inside the action method.
+"""
+set_state('actions.set-rate')
+
+try:
+ main()
+except Exception as e:
+ action_fail(repr(e))
--- /dev/null
+#!/usr/bin/env python3
+import sys
+sys.path.append('lib')
+
+from charms.reactive import main
+from charms.reactive import set_state
+from charmhelpers.core.hookenv import action_fail
+
+"""
+`set_state` only works here because it's flushed to disk inside the `main()`
+loop. remove_state will need to be called inside the action method.
+"""
+set_state('actions.set-server')
+
+try:
+ main()
+except Exception as e:
+ action_fail(repr(e))
--- /dev/null
+#!/usr/bin/env python3
+import sys
+sys.path.append('lib')
+
+from charms.reactive import main
+from charms.reactive import set_state
+from charmhelpers.core.hookenv import action_fail
+
+"""
+`set_state` only works here because it's flushed to disk inside the `main()`
+loop. remove_state will need to be called inside the action method.
+"""
+set_state('actions.start-traffic')
+
+try:
+ main()
+except Exception as e:
+ action_fail(repr(e))
--- /dev/null
+#!/usr/bin/env python3
+import sys
+sys.path.append('lib')
+
+from charms.reactive import main
+from charms.reactive import set_state
+from charmhelpers.core.hookenv import action_fail
+
+"""
+`set_state` only works here because it's flushed to disk inside the `main()`
+loop. remove_state will need to be called inside the action method.
+"""
+set_state('actions.stop-traffic')
+
+try:
+ main()
+except Exception as e:
+ action_fail(repr(e))
--- /dev/null
+options:
+ mode:
+ type: string
+ default:
+ description: "The service type: [ping, pong]"
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--- /dev/null
+includes:
+ - layer:basic
+ - layer:vnfproxy
+repo: https://osm.etsi.org/gerrit/osm/juju-charms
--- /dev/null
+name: pingpong
+summary: <Fill in summary here>
+maintainer: Adam Israel <Adam.Israel@ronin>
+description: |
+ <Multi-line description here>
+tags:
+ # Replace "misc" with one or more whitelisted tags from this list:
+ # https://jujucharms.com/docs/stable/authors-charm-metadata
+ - misc
+subordinate: false
+series:
+ - trusty
+ - xenial
--- /dev/null
+from charmhelpers.core.hookenv import (
+ action_get,
+ action_fail,
+ action_set,
+ config,
+ status_set,
+)
+
+from charms.reactive import (
+ remove_state as remove_flag,
+ set_state as set_flag,
+ when,
+)
+import charms.sshproxy
+from subprocess import (
+ Popen,
+ CalledProcessError,
+ PIPE,
+)
+
+
+cfg = config()
+
+
+@when('config.changed')
+def config_changed():
+ if all(k in cfg for k in ['mode']):
+ if cfg['mode'] in ['ping', 'pong']:
+ set_flag('pingpong.configured')
+ status_set('active', 'ready!')
+ return
+ status_set('blocked', 'Waiting for configuration')
+
+
+def is_ping():
+ if cfg['mode'] == 'ping':
+ return True
+ return False
+
+
+def is_pong():
+ return not is_ping()
+
+
+def get_port():
+ port = 18888
+ if is_pong():
+ port = 18889
+ return port
+
+
+@when('pingpong.configured')
+@when('actions.start')
+def start():
+ try:
+ # Bring up the eth1 interface.
+ # The selinux label on the file needs to be set correctly
+ cmd = "sudo timeout 5 /sbin/restorecon -v /etc/sysconfig/network-scripts/ifcfg-eth1"
+ result, err = charms.sshproxy._run(cmd)
+ except Exception as e:
+ err = "{}".format(e)
+ action_fail('command failed: {}, errors: {}'.format(err, e.output))
+ remove_flag('actions.start')
+ return
+
+ try:
+ cmd = "sudo timeout 30 /sbin/ifup eth1"
+ result, err = charms.sshproxy._run(cmd)
+ except Exception as e:
+ action_fail('command failed: {}, errors: {}'.format(e, e.output))
+ remove_flag('actions.start')
+ return
+
+ try:
+ cmd = "sudo timeout 30 /usr/bin/systemctl start {}". \
+ format(cfg['mode'])
+ result, err = charms.sshproxy._run(cmd)
+ except Exception as e:
+ action_fail('command failed: {}, errors: {}'.format(e, e.output))
+ else:
+ action_set({'stdout': result,
+ 'errors': err})
+ finally:
+ remove_flag('actions.start')
+
+
+@when('pingpong.configured')
+@when('actions.stop')
+def stop():
+ try:
+ # Enter the command to stop your service(s)
+ cmd = "sudo timeout 30 /usr/bin/systemctl stop {}".format(cfg['mode'])
+ result, err = charms.sshproxy._run(cmd)
+ except Exception as e:
+ action_fail('command failed: {}, errors: {}'.format(e, e.output))
+ else:
+ action_set({'stdout': result,
+ 'errors': err})
+ finally:
+ remove_flag('actions.stop')
+
+
+@when('pingpong.configured')
+@when('actions.restart')
+def restart():
+ try:
+ # Enter the command to restart your service(s)
+ cmd = "sudo timeout 30 /usr/bin/systemctl restart {}".format(cfg['mode'])
+ result, err = charms.sshproxy._run(cmd)
+ except Exception as e:
+ action_fail('command failed: {}, errors: {}'.format(e, e.output))
+ else:
+ action_set({'stdout': result,
+ 'errors': err})
+ finally:
+ remove_flag('actions.restart')
+
+
+@when('pingpong.configured')
+@when('actions.set-server')
+def set_server():
+ try:
+ # Get the target service info
+ target_ip = action_get('server-ip')
+ target_port = action_get('server-port')
+
+ data = '{{"ip" : "{}", "port" : {} }}'. \
+ format(target_ip, target_port)
+
+ cmd = format_curl(
+ 'POST',
+ '/server',
+ data,
+ )
+
+ result, err = charms.sshproxy._run(cmd)
+ except Exception as e:
+ action_fail('command failed: {}, errors: {}'.format(e, e.output))
+ else:
+ action_set({'stdout': result,
+ 'errors': err})
+ finally:
+ remove_flag('actions.set-server')
+
+
+@when('pingpong.configured')
+@when('actions.set-rate')
+def set_rate():
+ try:
+ if is_ping():
+ rate = action_get('rate')
+ cmd = format_curl('POST', '/rate', '{{"rate" : {}}}'.format(rate))
+
+ result, err = charms.sshproxy._run(cmd)
+ except Exception as e:
+ err = "{}".format(e)
+ action_fail('command failed: {}, errors: {}'.format(err, e.output))
+ else:
+ action_set({'stdout': result,
+ 'errors': err})
+ finally:
+ remove_flag('actions.set-rate')
+
+
+@when('pingpong.configured')
+@when('actions.get-rate')
+def get_rate():
+ try:
+ if is_ping():
+ cmd = format_curl('GET', '/rate')
+
+ result, err = charms.sshproxy._run(cmd)
+ except Exception as e:
+ action_fail('command failed: {}, errors: {}'.format(e, e.output))
+ else:
+ action_set({'stdout': result,
+ 'errors': err})
+ finally:
+ remove_flag('actions.get-rate')
+
+
+@when('pingpong.configured')
+@when('actions.get-state')
+def get_state():
+ try:
+ cmd = format_curl('GET', '/state')
+
+ result, err = charms.sshproxy._run(cmd)
+ except Exception as e:
+ action_fail('command failed: {}, errors: {}'.format(e, e.output))
+ else:
+ action_set({'stdout': result,
+ 'errors': err})
+ finally:
+ remove_flag('actions.get-state')
+
+
+@when('pingpong.configured')
+@when('actions.get-stats')
+def get_stats():
+ try:
+ cmd = format_curl('GET', '/stats')
+
+ result, err = charms.sshproxy._run(cmd)
+ except Exception as e:
+ action_fail('command failed: {}, errors: {}'.format(e, e.output))
+ else:
+ action_set({'stdout': result,
+ 'errors': err})
+ finally:
+ remove_flag('actions.get-stats')
+
+
+@when('pingpong.configured')
+@when('actions.start-traffic')
+def start_traffic():
+ try:
+ cmd = format_curl('POST', '/adminstatus/state', '{"enable" : true}')
+
+ result, err = charms.sshproxy._run(cmd)
+ except Exception as e:
+ action_fail('command failed: {}, errors: {}'.format(e, e.output))
+ else:
+ action_set({'stdout': result,
+ 'errors': err})
+ finally:
+ remove_flag('actions.start-traffic')
+
+
+@when('pingpong.configured')
+@when('actions.stop-traffic')
+def stop_traffic():
+ try:
+ cmd = format_curl('POST', '/adminstatus/state', '{"enable" : false}')
+
+ result, err = charms.sshproxy._run(cmd)
+ except Exception as e:
+ action_fail('command failed: {}, errors: {}'.format(e, e.output))
+ else:
+ action_set({'stdout': result,
+ 'errors': err})
+ finally:
+ remove_flag('actions.stop-traffic')
+
+
+def format_curl(method, path, data=None):
+ """ A utility function to build the curl command line. """
+
+ # method must be GET or POST
+ if method not in ['GET', 'POST']:
+ # Throw exception
+ return None
+
+ # Get our service info
+ host = '127.0.0.1'
+ port = get_port()
+ mode = cfg['mode']
+
+ cmd = ['curl',
+ # '-D', '/dev/stdout',
+ '-H', 'Accept: application/vnd.yang.data+xml',
+ '-H', 'Content-Type: application/vnd.yang.data+json',
+ '-X', method]
+
+ if method == "POST" and data:
+ cmd.append('-d')
+ cmd.append('{}'.format(data))
+
+ cmd.append(
+ 'http://{}:{}/api/v1/{}{}'.format(host, port, mode, path)
+ )
+ return cmd
--- /dev/null
+#!/bin/bash
+
+sudo add-apt-repository ppa:juju/stable -y
+sudo apt-get update
+sudo apt-get install amulet python-requests -y
--- /dev/null
+#!/usr/bin/python3
+
+import amulet
+import requests
+import unittest
+
+
+class TestCharm(unittest.TestCase):
+ def setUp(self):
+ self.d = amulet.Deployment()
+
+ self.d.add('pingpong')
+ self.d.expose('pingpong')
+
+ self.d.setup(timeout=900)
+ self.d.sentry.wait()
+
+ self.unit = self.d.sentry['pingpong'][0]
+
+ def test_service(self):
+ # test we can access over http
+ page = requests.get('http://{}'.format(self.unit.info['public-address']))
+ self.assertEqual(page.status_code, 200)
+ # Now you can use self.d.sentry[SERVICE][UNIT] to address each of the units and perform
+ # more in-depth steps. Each self.d.sentry[SERVICE][UNIT] has the following methods:
+ # - .info - An array of the information of that unit from Juju
+ # - .file(PATH) - Get the details of a file on that unit
+ # - .file_contents(PATH) - Get plain text output of PATH file from that unit
+ # - .directory(PATH) - Get details of directory
+ # - .directory_contents(PATH) - List files and folders in PATH on that unit
+ # - .relation(relation, service:rel) - Get relation data from return service
+
+
+if __name__ == '__main__':
+ unittest.main()
--- /dev/null
+#!/usr/bin/make
+
+all: lint unit_test
+
+
+.PHONY: clean
+clean:
+ @rm -rf .tox
+
+.PHONY: apt_prereqs
+apt_prereqs:
+ @# Need tox, but don't install the apt version unless we have to (don't want to conflict with pip)
+ @which tox >/dev/null || (sudo apt-get install -y python-pip && sudo pip install tox)
+
+.PHONY: lint
+lint: apt_prereqs
+ @tox --notest
+ @PATH=.tox/py34/bin:.tox/py35/bin flake8 $(wildcard hooks reactive lib unit_tests tests)
+ @charm proof
+
+.PHONY: unit_test
+unit_test: apt_prereqs
+ @echo Starting tests...
+ tox
--- /dev/null
+# Overview
+
+This is the base layer for all charms [built using layers][building]. It
+provides all of the standard Juju hooks and runs the
+[charms.reactive.main][charms.reactive] loop for them. It also bootstraps the
+[charm-helpers][] and [charms.reactive][] libraries and all of their
+dependencies for use by the charm.
+
+# Usage
+
+To create a charm layer using this base layer, you need only include it in
+a `layer.yaml` file:
+
+```yaml
+includes: ['layer:basic']
+```
+
+This will fetch this layer from [interfaces.juju.solutions][] and incorporate
+it into your charm layer. You can then add handlers under the `reactive/`
+directory. Note that **any** file under `reactive/` will be expected to
+contain handlers, whether as Python decorated functions or [executables][non-python]
+using the [external handler protocol][].
+
+### Charm Dependencies
+
+Each layer can include a `wheelhouse.txt` file with Python requirement lines.
+For example, this layer's `wheelhouse.txt` includes:
+
+```
+pip>=7.0.0,<8.0.0
+charmhelpers>=0.4.0,<1.0.0
+charms.reactive>=0.1.0,<2.0.0
+```
+
+All of these dependencies from each layer will be fetched (and updated) at build
+time and will be automatically installed by this base layer before any reactive
+handlers are run.
+
+Note that the `wheelhouse.txt` file is intended for **charm** dependencies only.
+That is, for libraries that the charm code itself needs to do its job of deploying
+and configuring the payload. If the payload itself has Python dependencies, those
+should be handled separately, by the charm.
+
+See [PyPI][pypi charms.X] for packages under the `charms.` namespace which might
+be useful for your charm.
+
+### Layer Namespace
+
+Each layer has a reserved section in the `charms.layer.` Python package namespace,
+which it can populate by including a `lib/charms/layer/<layer-name>.py` file or
+by placing files under `lib/charms/layer/<layer-name>/`. (If the layer name
+includes hyphens, replace them with underscores.) These can be helpers that the
+layer uses internally, or it can expose classes or functions to be used by other
+layers to interact with that layer.
+
+For example, a layer named `foo` could include a `lib/charms/layer/foo.py` file
+with some helper functions that other layers could access using:
+
+```python
+from charms.layer.foo import my_helper
+```
+
+### Layer Options
+
+Any layer can define options in its `layer.yaml`. Those options can then be set
+by other layers to change the behavior of your layer. The options are defined
+using [jsonschema][], which is the same way that [action paramters][] are defined.
+
+For example, the `foo` layer could include the following option definitons:
+
+```yaml
+includes: ['layer:basic']
+defines: # define some options for this layer (the layer "foo")
+ enable-bar: # define an "enable-bar" option for this layer
+ description: If true, enable support for "bar".
+ type: boolean
+ default: false
+```
+
+A layer using `foo` could then set it:
+
+```yaml
+includes: ['layer:foo']
+options:
+ foo: # setting options for the "foo" layer
+ enable-bar: true # set the "enable-bar" option to true
+```
+
+The `foo` layer can then use the `charms.layer.options` helper to load the values
+for the options that it defined. For example:
+
+```python
+from charms import layer
+
+@when('state')
+def do_thing():
+ layer_opts = layer.options('foo') # load all of the options for the "foo" layer
+ if layer_opts['enable-bar']: # check the value of the "enable-bar" option
+ hookenv.log("Bar is enabled")
+```
+
+You can also access layer options in other handlers, such as Bash, using
+the command-line interface:
+
+```bash
+. charms.reactive.sh
+
+@when 'state'
+function do_thing() {
+ if layer_option foo enable-bar; then
+ juju-log "Bar is enabled"
+ juju-log "bar-value is: $(layer_option foo bar-value)"
+ fi
+}
+
+reactive_handler_main
+```
+
+Note that options of type `boolean` will set the exit code, while other types
+will be printed out.
+
+# Hooks
+
+This layer provides hooks that other layers can react to using the decorators
+of the [charms.reactive][] library:
+
+ * `config-changed`
+ * `install`
+ * `leader-elected`
+ * `leader-settings-changed`
+ * `start`
+ * `stop`
+ * `upgrade-charm`
+ * `update-status`
+
+Other hooks are not implemented at this time. A new layer can implement storage
+or relation hooks in their own layer by putting them in the `hooks` directory.
+
+**Note:** Because `update-status` is invoked every 5 minutes, you should take
+care to ensure that your reactive handlers only invoke expensive operations
+when absolutely necessary. It is recommended that you use helpers like
+[`@only_once`][], [`@when_file_changed`][], and [`data_changed`][] to ensure
+that handlers run only when necessary.
+
+# Layer Configuration
+
+This layer supports the following options, which can be set in `layer.yaml`:
+
+ * **packages** A list of system packages to be installed before the reactive
+ handlers are invoked.
+
+ * **use_venv** If set to true, the charm dependencies from the various
+ layers' `wheelhouse.txt` files will be installed in a Python virtualenv
+ located at `$CHARM_DIR/../.venv`. This keeps charm dependencies from
+ conflicting with payload dependencies, but you must take care to preserve
+ the environment and interpreter if using `execl` or `subprocess`.
+
+ * **include_system_packages** If set to true and using a venv, include
+ the `--system-site-packages` options to make system Python libraries
+ visible within the venv.
+
+An example `layer.yaml` using these options might be:
+
+```yaml
+includes: ['layer:basic']
+options:
+ basic:
+ packages: ['git']
+ use_venv: true
+ include_system_packages: true
+```
+
+
+# Reactive States
+
+This layer will set the following states:
+
+ * **`config.changed`** Any config option has changed from its previous value.
+ This state is cleared automatically at the end of each hook invocation.
+
+ * **`config.changed.<option>`** A specific config option has changed.
+ **`<option>`** will be replaced by the config option name from `config.yaml`.
+ This state is cleared automatically at the end of each hook invocation.
+
+ * **`config.set.<option>`** A specific config option has a True or non-empty
+ value set. **`<option>`** will be replaced by the config option name from
+ `config.yaml`. This state is cleared automatically at the end of each hook
+ invocation.
+
+ * **`config.default.<option>`** A specific config option is set to its
+ default value. **`<option>`** will be replaced by the config option name
+ from `config.yaml`. This state is cleared automatically at the end of
+ each hook invocation.
+
+An example using the config states would be:
+
+```python
+@when('config.changed.my-opt')
+def my_opt_changed():
+ update_config()
+ restart_service()
+```
+
+
+# Actions
+
+This layer currently does not define any actions.
+
+
+[building]: https://jujucharms.com/docs/devel/authors-charm-building
+[charm-helpers]: https://pythonhosted.org/charmhelpers/
+[charms.reactive]: https://pythonhosted.org/charms.reactive/
+[interfaces.juju.solutions]: http://interfaces.juju.solutions/
+[non-python]: https://pythonhosted.org/charms.reactive/#non-python-reactive-handlers
+[external handler protocol]: https://pythonhosted.org/charms.reactive/charms.reactive.bus.html#charms.reactive.bus.ExternalHandler
+[jsonschema]: http://json-schema.org/
+[action paramters]: https://jujucharms.com/docs/stable/authors-charm-actions
+[pypi charms.X]: https://pypi.python.org/pypi?%3Aaction=search&term=charms.&submit=search
+[`@only_once`]: https://pythonhosted.org/charms.reactive/charms.reactive.decorators.html#charms.reactive.decorators.only_once
+[`@when_file_changed`]: https://pythonhosted.org/charms.reactive/charms.reactive.decorators.html#charms.reactive.decorators.when_file_changed
+[`data_changed`]: https://pythonhosted.org/charms.reactive/charms.reactive.helpers.html#charms.reactive.helpers.data_changed
--- /dev/null
+"ping":
+ "description": "ping a thing!"
+ "params":
+ "count":
+ "description": "Stop after sending count ECHO_REQUEST packets"
+ "type": "integer"
+ "default": !!int "30"
+ "destination":
+ "description": "destination of ping request"
+ "type": "string"
+ "required":
+ - "destination"
--- /dev/null
+#!/usr/bin/env python3
+import sys
+sys.path.append('lib')
+
+from charms.reactive import main
+from charms.reactive import set_state
+from charmhelpers.core.hookenv import action_fail
+
+"""
+`set_state` only works here because it's flushed to disk inside the `main()`
+loop. remove_state will need to be called inside the action method.
+"""
+set_state('actions.ping')
+
+try:
+ main()
+except Exception as e:
+ action_fail(repr(e))
--- /dev/null
+"options":
+ "hostname":
+ "default": !!null ""
+ "type": "string"
+ "description": "Hostname or IP of the VyOS"
+ "user":
+ "type": "string"
+ "default": "vyos"
+ "description": "Username for VyOS"
+ "pass":
+ "type": "string"
+ "default": !!null ""
+ "description": "Password for VyOS"
--- /dev/null
+Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0
+
+Files: *
+Copyright: 2015, Canonical Ltd.
+License: Apache-2.0
+
+License: Apache-2.0
+ On Debian GNU/Linux system you can find the complete text of the
+ Apache-2.0 license in '/usr/share/common-licenses/Apache-2.0'
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+ d="m 264,552.36218 a 12,12 0 1 1 -24,0 A 12,12 0 1 1 264,552.36218 Z"\r
+ sodipodi:ry="12"\r
+ sodipodi:rx="12"\r
+ sodipodi:cy="552.36218"\r
+ sodipodi:cx="252"\r
+ id="path4400"\r
+ style="color:#000000;fill:#dd4814;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:4;marker:none;visibility:visible;display:inline;overflow:visible;enable-background:accumulate"\r
+ sodipodi:type="arc" />\r
+ <path\r
+ sodipodi:type="star"\r
+ style="color:#000000;fill:#f5f5f5;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:3;marker:none;visibility:visible;display:inline;overflow:visible;enable-background:accumulate"\r
+ id="path4459"\r
+ sodipodi:sides="5"\r
+ sodipodi:cx="666.19574"\r
+ sodipodi:cy="589.50385"\r
+ sodipodi:r1="7.2431178"\r
+ sodipodi:r2="4.3458705"\r
+ sodipodi:arg1="1.0471976"\r
+ sodipodi:arg2="1.6755161"\r
+ inkscape:flatsided="false"\r
+ inkscape:rounded="0.1"\r
+ inkscape:randomized="0"\r
+ d="m 669.8173,595.77657 c -0.39132,0.22593 -3.62645,-1.90343 -4.07583,-1.95066 -0.44938,-0.0472 -4.05653,1.36297 -4.39232,1.06062 -0.3358,-0.30235 0.68963,-4.03715 0.59569,-4.47913 -0.0939,-0.44198 -2.5498,-3.43681 -2.36602,-3.8496 0.18379,-0.41279 4.05267,-0.59166 4.44398,-0.81759 0.39132,-0.22593 2.48067,-3.48704 2.93005,-3.4398 0.44938,0.0472 1.81505,3.67147 2.15084,3.97382 0.3358,0.30236 4.08294,1.2817 4.17689,1.72369 0.0939,0.44198 -2.9309,2.86076 -3.11469,3.27355 C 669.9821,591.68426 670.20862,595.55064 669.8173,595.77657 Z"\r
+ transform="matrix(1.511423,-0.16366377,0.16366377,1.511423,-755.37346,-191.93651)" />\r
+ </g>\r
+ </g>\r
+ </g>\r
+ </g>\r
+</svg>\r
--- /dev/null
+"options":
+ "basic":
+ "packages":
+ - "python-dev"
+ - "libffi-dev"
+ - "libssl-dev"
+ "use_venv": !!bool "false"
+ "include_system_packages": !!bool "false"
+ "vyos-proxy": {}
+"includes":
+- "layer:basic"
+"is": "vyos-proxy"
+"repo": "https://osm.etsi.org/gerrit/osm/juju-charms"
--- /dev/null
+"name": "vyos-proxy"
+"summary": "VyOS Proxy charm for ping"
+"description": |
+ VyOS Proxy charm
+"tags":
+- "vnf"
+- "network"
+"maintainers":
+- "Marco Ceppi <marco.ceppi@canonical.com>"
+"series":
+- "xenial"
+- "trusty"
--- /dev/null
+
+import subprocess
+import paramiko
+
+from charmhelpers.core.hookenv import (
+ config,
+ status_set,
+ action_get,
+ action_set,
+ action_fail,
+)
+
+from charms.reactive import (
+ when,
+ when_not,
+ set_state as set_flag,
+ remove_state as remove_flag,
+)
+
+
+@when('config.changed')
+def test_connection():
+ status_set('maintenance', 'configuring ssh connection')
+ remove_flag('vyos-proxy.ready')
+ try:
+ who, _ = run('whoami')
+ except MgmtNotConfigured as e:
+ remove_flag('vyos-proxy.configured')
+ status_set('blocked', str(e))
+ except subprocess.CalledProcessError as e:
+ remove_flag('vyos-proxy.configured')
+ status_set('blocked', e.output)
+ else:
+ set_flag('vyos-proxy.configured')
+
+
+@when('vyos-proxy.configured')
+@when_not('vyos-proxy.ready')
+def vyos_proxy_ready():
+ status_set('active', 'ready')
+ set_flag('vyos-proxy.ready')
+
+
+@when('actions.ping')
+@when_not('vyos-proxy.configured')
+def pingme():
+ action_fail('proxy is not ready')
+
+
+@when('actions.ping')
+@when('vyos-proxy.configured')
+def pingme_forreal():
+ try:
+ result, err = run('ping -qc {} {}'.format(action_get('count'), action_get('destination')))
+ except:
+ action_fail('ping command failed')
+ finally:
+ remove_flag('actions.ping')
+
+ # Here you can send results back from ping, if you had time to parse it
+ action_set({'output': result})
+
+
+
+class MgmtNotConfigured(Exception):
+ pass
+
+
+def run(cmd):
+ ''' Suddenly this project needs to SSH to something. So we replicate what
+ _run was doing with subprocess using the Paramiko library. This is
+ temporary until this charm /is/ the VPE Router '''
+
+ cfg = config()
+
+ hostname = cfg.get('hostname')
+ password = cfg.get('pass')
+ username = cfg.get('user')
+
+ if not (username and password and hostname):
+ raise MgmtNotConfigured('incomplete remote credentials')
+
+ client = paramiko.SSHClient()
+ client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+
+ try:
+ client.connect(cfg.get('hostname'), port=22,
+ username=cfg.get('user'), password=cfg.get('pass'))
+ except paramiko.ssh_exception.AuthenticationException:
+ raise MgmtNotConfigured('invalid credentials')
+
+ stdin, stdout, stderr = client.exec_command(cmd)
+ retcode = stdout.channel.recv_exit_status()
+ client.close() # @TODO re-use connections
+ if retcode > 0:
+ output = stderr.read().strip()
+ raise subprocess.CalledProcessError(returncode=retcode, cmd=cmd,
+ output=output)
+ return (''.join(stdout), ''.join(stderr))
--- /dev/null
+flake8
+pytest
--- /dev/null
+0
\ No newline at end of file
--- /dev/null
+[tox]
+skipsdist=True
+envlist = py34, py35
+skip_missing_interpreters = True
+
+[testenv]
+commands = py.test -v
+deps =
+ -r{toxinidir}/requirements.txt
+
+[flake8]
+exclude=docs
--- /dev/null
+paramiko==2.0.1
+++ /dev/null
-# Set the Juju env variables for building a layer
-export JUJU_REPOSITORY=`pwd`
-export INTERFACE_PATH=$JUJU_REPOSITORY/interfaces
-export LAYER_PATH=$JUJU_REPOSITORY/layers
+++ /dev/null
-
- Apache License
- Version 2.0, January 2004
- http://www.apache.org/licenses/
-
- TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
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- as modifying the License.
-
- You may add Your own copyright statement to Your modifications and
- may provide additional or different license terms and conditions
- for use, reproduction, or distribution of Your modifications, or
- for any such Derivative Works as a whole, provided Your use,
- reproduction, and distribution of the Work otherwise complies with
- the conditions stated in this License.
-
- 5. Submission of Contributions. Unless You explicitly state otherwise,
- any Contribution intentionally submitted for inclusion in the Work
- by You to the Licensor shall be under the terms and conditions of
- this License, without any additional terms or conditions.
- Notwithstanding the above, nothing herein shall supersede or modify
- the terms of any separate license agreement you may have executed
- with Licensor regarding such Contributions.
-
- 6. Trademarks. This License does not grant permission to use the trade
- names, trademarks, service marks, or product names of the Licensor,
- except as required for reasonable and customary use in describing the
- origin of the Work and reproducing the content of the NOTICE file.
-
- 7. Disclaimer of Warranty. Unless required by applicable law or
- agreed to in writing, Licensor provides the Work (and each
- Contributor provides its Contributions) on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
- implied, including, without limitation, any warranties or conditions
- of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
- PARTICULAR PURPOSE. You are solely responsible for determining the
- appropriateness of using or redistributing the Work and assume any
- risks associated with Your exercise of permissions under this License.
-
- 8. Limitation of Liability. In no event and under no legal theory,
- whether in tort (including negligence), contract, or otherwise,
- unless required by applicable law (such as deliberate and grossly
- negligent acts) or agreed to in writing, shall any Contributor be
- liable to You for damages, including any direct, indirect, special,
- incidental, or consequential damages of any character arising as a
- result of this License or out of the use or inability to use the
- Work (including but not limited to damages for loss of goodwill,
- work stoppage, computer failure or malfunction, or any and all
- other commercial damages or losses), even if such Contributor
- has been advised of the possibility of such damages.
-
- 9. Accepting Warranty or Additional Liability. While redistributing
- the Work or Derivative Works thereof, You may choose to offer,
- and charge a fee for, acceptance of support, warranty, indemnity,
- or other liability obligations and/or rights consistent with this
- License. However, in accepting such obligations, You may act only
- on Your own behalf and on Your sole responsibility, not on behalf
- of any other Contributor, and only if You agree to indemnify,
- defend, and hold each Contributor harmless for any liability
- incurred by, or claims asserted against, such Contributor by reason
- of your accepting any such warranty or additional liability.
-
- END OF TERMS AND CONDITIONS
-
- APPENDIX: How to apply the Apache License to your work.
-
- To apply the Apache License to your work, attach the following
- boilerplate notice, with the fields enclosed by brackets "[]"
- replaced with your own identifying information. (Don't include
- the brackets!) The text should be enclosed in the appropriate
- comment syntax for the file format. We also recommend that a
- file or class name and description of purpose be included on the
- same "printed page" as the copyright notice for easier
- identification within third-party archives.
-
- Copyright [yyyy] [name of copyright owner]
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
+++ /dev/null
-# Overview
-
-This charm provides basic network utilities that can be run from a Juju-deployed
-machine.
-
-# Usage
-
-To deploy the charm:
-```bash
-$ juju deploy cs:~nfv/netutils
-```
-
-To run an action:
-```bash
-$ juju run-action netutils/0 ping destination=google.com
-$ juju run-action netutils/0 traceroute destination=google.com
-```
-
-To fetch the output of an action:
-```bash
-$ juju show-action-output 026b3d4c-0bb2-4818-8d24-9855936cdcdf
-results:
- output: |
- traceroute to google.com (216.58.198.78), 30 hops max, 60 byte packets
- 1 ec2-79-125-0-86.eu-west-1.compute.amazonaws.com (79.125.0.86) 1.431 ms 1.410 ms 1.380 ms
- 2 100.64.2.73 (100.64.2.73) 1.647 ms 100.64.2.103 (100.64.2.103) 1.247 ms 100.64.2.121 (100.64.2.121) 1.224 ms
- 3 100.64.0.232 (100.64.0.232) 1.296 ms 100.64.0.184 (100.64.0.184) 1.515 ms 100.64.0.234 (100.64.0.234) 1.079 ms
- 4 100.64.16.37 (100.64.16.37) 0.377 ms 100.64.16.49 (100.64.16.49) 0.347 ms 100.64.16.1 (100.64.16.1) 0.340 ms
- 5 176.32.107.12 (176.32.107.12) 0.739 ms 176.32.107.4 (176.32.107.4) 0.875 ms 0.748 ms
- 6 178.236.0.111 (178.236.0.111) 0.650 ms 0.641 ms 0.645 ms
- 7 72.14.215.85 (72.14.215.85) 0.544 ms 1.508 ms 1.498 ms
- 8 209.85.252.198 (209.85.252.198) 0.680 ms 0.659 ms 0.618 ms
- 9 64.233.174.27 (64.233.174.27) 0.690 ms 0.682 ms 0.634 ms
- 10 dub08s02-in-f14.1e100.net (216.58.198.78) 0.568 ms 0.560 ms 0.595 ms
-status: completed
-timing:
- completed: 2016-06-29 14:50:04 +0000 UTC
- enqueued: 2016-06-29 14:50:03 +0000 UTC
- started: 2016-06-29 14:50:03 +0000 UTC
-```
-## iperf3
-
-Because iperf3 has a client and server component, the netutils charm can operate
-as both. Setting the iperf3 configuration value to True will start iperf3 in
-server mode, running as a daemon.
-```
-$ juju deploy cs:~nfv/netutils client
-$ juju deploy cs:~nfv/netutils server iperf3=True
-$ juju run-action client/0 iperf host=<ip of server> [...]
-```
-
-## Scale out Usage
-
-With great scalability comes great power, but please don't use this to DDoS anyone without their permission.
-
-## Known Limitations and Issues
-
-# Contact Information
-
-## Contributing to the charm
-
- - The compiled charm can be found [here](https://www.jujucharms.com/u/nfv/netutils).
- - [layer/netutils](https://osm.etsi.org/gitweb/?p=osm/juju-charms.git;a=summary/) contains the source of the layer.
- - Please add any bugs or feature requests to the [bugzilla](https://osm.etsi.org/bugzilla/buglist.cgi?component=Juju-charms&list_id=426&product=OSM&resolution=---).
+++ /dev/null
-nmap:
- description: "nmap a thing!"
- params:
- destination:
- description: "destination to scan"
- type: string
- required:
- - destination
-ping:
- description: 'ping a thing!'
- params:
- count:
- description: "Stop after sending count ECHO_REQUEST packets"
- type: integer
- default: 30
- destination:
- description: "destination of ping request"
- type: string
- required:
- - destination
-traceroute:
- description: 'trace a thing!'
- params:
- hops:
- description: "Stop tracing after count hops"
- type: integer
- default: 30
- destination:
- description: "destination of traceroute request"
- type: string
- required:
- - destination
-dig:
- description: "DNS lookup"
- params:
- nsserver:
- description: "The nameserver to lookup against."
- type: string
- host:
- description: "The host to lookup"
- type: string
- type:
- description: "The DNS record type to lookup"
- type: string
- required:
- - host
-iperf:
- description: ""
- params:
- host:
- description: ""
- type: string
- port:
- description: ""
- type: integer
- default: 5201
- format:
- description: ""
- type: string
- interval:
- description: ""
- type: string
- affinity:
- description: ""
- type: string
- udp:
- description: "Use UDP rather than TCP"
- type: boolean
- default: False
- bandwidth:
- description: "Set the target bandwidth to n bits/sec (default 1Mbit/sec for UDP, unlimited for TCP)"
- type: integer
- default: 1
- time:
- description: "Time, in seconds, to transmit for."
- type: integer
- default: 10
- blockcount:
- description: "The number of blocks to transmit"
- type: integer
- length:
- description: "The length of buffer to read or write (default 128KB for TCP, 8KB for UDP)"
- type: integer
- parallel:
- description: "The number of parallel client streams to run"
- type: integer
- reverse:
- description: "Run in reverse mode (server sends, client receives)."
- type: boolean
- default: false
- window:
- description: "Window size/socket buffer size."
- type: integer
- bind:
- description: "Bind to a specific interface or multicast address"
- type: string
- mss:
- description: "Set the TCP maximum segment size (MTU - 40 bytes)"
- type: integer
- no-delay:
- description: "Set the TCP no delay, disabling Nagle's algorithm."
- type: boolean
- default: false
- ipv4:
- description: "Only use IPv4"
- type: boolean
- default: false
- ipv6:
- description: "Only use IPv6"
- type: boolean
- default: false
- tos:
- description: "Set the IP 'type of service'"
- type: integer
- flowlabel:
- description: "Set the IPv6 flow label (linux-only)"
- type: string
- zerocopy:
- description: "Use a 'zero copy' method of sending data, such as sendfile(s), instead of the usual write(2)."
- type: boolean
- default: false
- omit:
- description: "Omit the first n seconds of the test, to skip past the TCP slow-start period."
- type: integer
- title:
- description: "Prefix every output line with this string."
- type: string
- congestion:
- description: "Set the linux congestion control algorithm."
- type: string
-
- required:
- - host
+++ /dev/null
-#!/usr/bin/env python3
-import sys
-sys.path.append('lib')
-
-from charms.reactive import main
-from charms.reactive import set_state
-from charmhelpers.core.hookenv import action_fail
-
-"""
-`set_state` only works here because it's flushed to disk inside the `main()`
-loop. remove_state will need to be called inside the action method.
-"""
-set_state('actions.dig')
-
-try:
- main()
-except Exception as e:
- action_fail(repr(e))
+++ /dev/null
-#!/usr/bin/env python3
-import sys
-sys.path.append('lib')
-
-from charms.reactive import main
-from charms.reactive import set_state
-from charmhelpers.core.hookenv import action_fail
-
-"""
-`set_state` only works here because it's flushed to disk inside the `main()`
-loop. remove_state will need to be called inside the action method.
-"""
-set_state('actions.iperf3')
-
-try:
- main()
-except Exception as e:
- action_fail(repr(e))
+++ /dev/null
-#!/usr/bin/env python3
-import sys
-sys.path.append('lib')
-
-from charms.reactive import main
-from charms.reactive import set_state
-from charmhelpers.core.hookenv import action_fail
-
-"""
-`set_state` only works here because it's flushed to disk inside the `main()`
-loop. remove_state will need to be called inside the action method.
-"""
-set_state('actions.nmap')
-
-try:
- main()
-except Exception as e:
- action_fail(repr(e))
+++ /dev/null
-#!/usr/bin/env python3
-import sys
-sys.path.append('lib')
-
-from charms.reactive import main
-from charms.reactive import set_state
-from charmhelpers.core.hookenv import action_fail
-
-"""
-`set_state` only works here because it's flushed to disk inside the `main()`
-loop. remove_state will need to be called inside the action method.
-"""
-set_state('actions.ping')
-
-try:
- main()
-except Exception as e:
- action_fail(repr(e))
+++ /dev/null
-#!/usr/bin/env python3
-import sys
-sys.path.append('lib')
-
-from charms.reactive import main
-from charms.reactive import set_state
-from charmhelpers.core.hookenv import action_fail
-
-"""
-`set_state` only works here because it's flushed to disk inside the `main()`
-loop. remove_state will need to be called inside the action method.
-"""
-set_state('actions.traceroute')
-
-try:
- main()
-except Exception as e:
- action_fail(repr(e))
+++ /dev/null
-options:
- iperf3:
- type: boolean
- default: false
- description: "Enabling this option will start iperf3 in server mode."
+++ /dev/null
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>\r
-<!-- Created with Inkscape (http://www.inkscape.org/) -->\r
-\r
-<svg\r
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+++ /dev/null
-repo: git@github.com:AdamIsrael/layer-netutils.git
-includes: ['layer:basic', 'layer:sshproxy']
-options:
- basic:
- packages:
- - traceroute
- - nmap
- - iperf3
+++ /dev/null
-name: netutils
-summary: A suite of network-related utilities.
-maintainer: Adam Israel <adam.israel@canonical.com>
-description: |
- A suite of network-related utilities, such as ping and traceroute, that
- can be deployed into a data center in order to diagnose connectivity issues.
-tags:
- # https://jujucharms.com/docs/stable/authors-charm-metadata
- - ops
- - network
- - performance
-series:
- - trusty
- - xenial
-subordinate: false
+++ /dev/null
-from charmhelpers.core.hookenv import (
- action_get,
- action_fail,
- action_set,
- config,
- log,
- status_set,
-)
-
-from charms.reactive import (
- remove_state as remove_flag,
- set_state as set_flag,
- when,
- when_not,
-)
-import charms.sshproxy
-from subprocess import CalledProcessError
-
-
-@when_not('netutils.ready')
-def ready():
- status_set('active', 'Ready!')
- set_flag('netutils.ready')
-
-
-@when('actions.dig')
-def dig():
- err = ''
- try:
- nsserver = action_get('nsserver')
- host = action_get('host')
- nstype = action_get('type')
- cmd = "dig"
-
- if nsserver:
- cmd += " @{}".format(nsserver)
- if host:
- cmd += " {}".format(host)
- else:
- action_fail('Hostname required.')
- if nstype:
- cmd += " -t {}".format(nstype)
-
- result, err = charms.sshproxy._run(cmd)
- except:
- action_fail('dig command failed:' + err)
- else:
- action_set({'outout': result})
- finally:
- remove_flag('actions.dig')
-
-
-@when('actions.nmap')
-def nmap():
- err = ''
- try:
- result, err = charms.sshproxy._run(
- 'nmap {}'.format(action_get('destination'))
- )
- except:
- action_fail('nmap command failed:' + err)
- else:
- action_set({'outout': result})
- finally:
- remove_flag('actions.nmap')
-
-
-@when('actions.ping')
-def ping():
- err = ''
- try:
- result, err = charms.sshproxy._run('ping -qc {} {}'.format(
- action_get('count'), action_get('destination'))
- )
-
- except:
- action_fail('ping command failed:' + err)
- else:
- # Here you can send results back from ping, if you had time to parse it
- action_set({'output': result})
- finally:
- remove_flag('actions.ping')
-
-
-@when('actions.traceroute')
-def traceroute():
- try:
- result, err = charms.sshproxy._run(
- 'traceroute -m {} {}'.format(
- action_get('hops'),
- action_get('destination')
- )
- )
- except:
- action_fail('traceroute command failed')
- else:
- # Here you can send results back from ping, if you had time to parse it
- action_set({'output': result})
- finally:
- remove_flag('actions.traceroute')
-
-
-@when('actions.iperf3')
-def iperf3():
- err = ''
- try:
- # TODO: read all the flags via action_get and build the
- # proper command line to run iperf3
- host = action_get('host')
-
- cmd = 'iperf3 -c {} --json'.format(host)
- result, err = charms.sshproxy._run(cmd)
- except CalledProcessError as e:
- action_fail('iperf3 command failed:' + e.output)
- else:
- action_set({'outout': result})
- finally:
- remove_flag('actions.iperf3')
-
-
-@when('config.changed')
-def config_changed():
- """ Handle configuration changes """
- cfg = config()
- if cfg.changed('iperf3'):
- if cfg['iperf3']:
- # start iperf in server + daemon mode
- cmd = "iperf3 -s -D"
- else:
- cmd = "killall iperf3"
- try:
- charms.sshproxy._run(cmd)
- log("iperf3 stopped.")
- except CalledProcessError:
- log("iperf3 not running.")
- else:
- log("iperf3 started.")
+++ /dev/null
-#!/bin/bash
-
-sudo add-apt-repository ppa:juju/stable -y
-sudo apt-get update
-sudo apt-get install amulet python-requests -y
+++ /dev/null
-#!/usr/bin/python3
-
-import amulet
-import requests
-import unittest
-
-
-class TestCharm(unittest.TestCase):
- def setUp(self):
- self.d = amulet.Deployment()
-
- self.d.add('layer-netutils')
- self.d.expose('layer-netutils')
-
- self.d.setup(timeout=900)
- self.d.sentry.wait()
-
- self.unit = self.d.sentry['layer-netutils'][0]
-
- def test_service(self):
- # test we can access over http
- page = requests.get('http://{}'.format(self.unit.info['public-address']))
- self.assertEqual(page.status_code, 200)
- # Now you can use self.d.sentry[SERVICE][UNIT] to address each of the units and perform
- # more in-depth steps. Each self.d.sentry[SERVICE][UNIT] has the following methods:
- # - .info - An array of the information of that unit from Juju
- # - .file(PATH) - Get the details of a file on that unit
- # - .file_contents(PATH) - Get plain text output of PATH file from that unit
- # - .directory(PATH) - Get details of directory
- # - .directory_contents(PATH) - List files and folders in PATH on that unit
- # - .relation(relation, service:rel) - Get relation data from return service
+++ /dev/null
-# Overview
-
-This repository contains the [Juju] layer that represents a working example of a proxy charm.
-
-# What is a proxy charm?
-
-A proxy charm is a limited type of charm that does not interact with software running on the same host, such as controlling and configuring a remote device (a static VM image, a router/switch, etc.). It cannot take advantage of some of Juju's key features, such as [scaling], [relations], and [leadership].
-
-Proxy charms are primarily a stop-gap, intended to prototype quickly, with the end goal being to develop it into a full-featured charm, which installs and executes code on the same machine as the charm is running.
-
-# Usage
-
-```bash
-# Clone this repository
-git clone https://osm.etsi.org/gerrit/osm/juju-charms
-cd juju-charms
-
-# Setup environment variables
-source juju-env.sh
-
-cd layers/pingpong
-charm build
-
-# Examine the built charm
-cd ../../builds/pingpong
-ls
-actions config.yaml icon.svg metadata.yaml tests
-actions.yaml copyright layer.yaml reactive tox.ini
-bin deps lib README.md wheelhouse
-builds hooks Makefile requirements.txt
-
-```
-
-You can view a screencast of this: https://asciinema.org/a/96738
-
-The `charm build` process combines this pingpong layer with each layer that it
-has included in the `metadata.yaml` file, along with their various dependencies.
-
-This built charm is what will then be used by the SO to communicate with the
-VNF.
-
-# Configuration
-
-The pingpong charm has several configuration properties that can be set via
-the SO:
-
-- ssh-hostname
-- ssh-username
-- ssh-password
-- ssh-private-key
-- mode
-
-The ssh-* keys are included by the `sshproxy` layer, and enable the charm to
-connect to the VNF image.
-
-The mode key must be one of two values: `ping` or `pong`. This informs the
-charm as to which function it is serving.
-
-# Contact Information
-For support, please send an email to the [OSM Tech] list.
-
-
-[OSM Tech]: mailto:OSM_TECH@list.etsi.org
-[Juju]: https://jujucharms.com/about
-[configure]: https://jujucharms.com/docs/2.0/charms-config
-[scaling]: https://jujucharms.com/docs/2.0/charms-scaling
-[relations]: https://jujucharms.com/docs/2.0/charms-relations
-[leadership]: https://jujucharms.com/docs/2.0/developer-leadership
-[created your charm]: https://jujucharms.com/docs/2.0/developer-getting-started
-
-
-
-
-
------
-
-
-# Integration
-
-After you've [created your charm], open `interfaces.yaml` and add
-`layer:sshproxy` to the includes stanza, as shown below:
-```
-includes: ['layer:basic', 'layer:sshproxy']
-```
-
-## Reactive states
-
-This layer will set the following states:
-
-- `sshproxy.configured` This state is set when SSH credentials have been supplied to the charm.
-
-
-## Example
-In `reactive/mycharm.py`, you can add logic to execute commands over SSH. This
-example is run via a `start` action, and starts a service running on a remote
-host.
-```
-...
-import charms.sshproxy
-
-
-@when('sshproxy.configured')
-@when('actions.start')
-def start():
- """ Execute's the command, via the start action` using the
- configured SSH credentials
- """
- sshproxy.ssh("service myservice start")
-
-```
-
-## Actions
-This layer includes a built-in `run` action useful for debugging or running arbitrary commands:
-
-```
-$ juju run-action mycharm/0 run command=hostname
-Action queued with id: 014b72f3-bc02-4ecb-8d38-72bce03bbb63
-
-$ juju show-action-output 014b72f3-bc02-4ecb-8d38-72bce03bbb63
-results:
- output: juju-66a5f3-11
-status: completed
-timing:
- completed: 2016-10-27 19:53:49 +0000 UTC
- enqueued: 2016-10-27 19:53:44 +0000 UTC
- started: 2016-10-27 19:53:48 +0000 UTC
-
-```
-## Known Limitations and Issues
-
-### Security issues
-
-- Password and key-based authentications are supported, with the caveat that
-both (password and private key) are stored plaintext within the Juju controller.
-
-# Configuration and Usage
-
-This layer adds the following configuration options:
-- ssh-hostname
-- ssh-username
-- ssh-password
-- ssh-private-key
-
-Once [configure] those values at any time. Once they are set, the `sshproxy.configured` state flag will be toggled:
-
-```
-juju deploy mycharm ssh-hostname=10.10.10.10 ssh-username=ubuntu ssh-password=yourpassword
-```
-or
-```
-juju deploy mycharm ssh-hostname=10.10.10.10 ssh-username=ubuntu ssh-private-key="cat `~/.ssh/id_rsa`"
-```
-
-
-# Contact Information
-Homepage: https://github.com/AdamIsrael/layer-sshproxy
-
-[Juju]: https://jujucharms.com/about
-[configure]: https://jujucharms.com/docs/2.0/charms-config
-[scaling]: https://jujucharms.com/docs/2.0/charms-scaling
-[relations]: https://jujucharms.com/docs/2.0/charms-relations
-[leadership]: https://jujucharms.com/docs/2.0/developer-leadership
-[created your charm]: https://jujucharms.com/docs/2.0/developer-getting-started
+++ /dev/null
-set-server:
- description: "Set the target IP address and port"
- params:
- server-ip:
- description: "IP on which the target service is listening."
- type: string
- default: ""
- server-port:
- description: "Port on which the target service is listening."
- type: integer
- default: 5555
- required:
- - server-ip
-set-rate:
- description: "Set the rate of packet generation."
- params:
- rate:
- description: "Packet rate."
- type: integer
- default: 5
-get-stats:
- description: "Get the stats."
-get-state:
- description: "Get the admin state of the target service."
-get-rate:
- description: "Get the rate set on the target service."
-get-server:
- description: "Get the target server and IP set"
-start-traffic:
- description: "Start the traffic generator or echo."
-stop-traffic:
- description: "Stop the traffic generator or echo."
+++ /dev/null
-#!/usr/bin/env python3
-import sys
-sys.path.append('lib')
-
-from charms.reactive import main
-from charms.reactive import set_state
-from charmhelpers.core.hookenv import action_fail
-
-"""
-`set_state` only works here because it's flushed to disk inside the `main()`
-loop. remove_state will need to be called inside the action method.
-"""
-set_state('actions.get-rate')
-
-try:
- main()
-except Exception as e:
- action_fail(repr(e))
+++ /dev/null
-#!/usr/bin/env python3
-import sys
-sys.path.append('lib')
-
-from charms.reactive import main
-from charms.reactive import set_state
-from charmhelpers.core.hookenv import action_fail
-
-"""
-`set_state` only works here because it's flushed to disk inside the `main()`
-loop. remove_state will need to be called inside the action method.
-"""
-set_state('actions.get-server')
-
-try:
- main()
-except Exception as e:
- action_fail(repr(e))
+++ /dev/null
-#!/usr/bin/env python3
-import sys
-sys.path.append('lib')
-
-from charms.reactive import main
-from charms.reactive import set_state
-from charmhelpers.core.hookenv import action_fail
-
-"""
-`set_state` only works here because it's flushed to disk inside the `main()`
-loop. remove_state will need to be called inside the action method.
-"""
-set_state('actions.get-state')
-
-try:
- main()
-except Exception as e:
- action_fail(repr(e))
+++ /dev/null
-#!/usr/bin/env python3
-import sys
-sys.path.append('lib')
-
-from charms.reactive import main
-from charms.reactive import set_state
-from charmhelpers.core.hookenv import action_fail
-
-"""
-`set_state` only works here because it's flushed to disk inside the `main()`
-loop. remove_state will need to be called inside the action method.
-"""
-set_state('actions.get-stats')
-
-try:
- main()
-except Exception as e:
- action_fail(repr(e))
+++ /dev/null
-#!/usr/bin/env python3
-import sys
-sys.path.append('lib')
-
-from charms.reactive import main
-from charms.reactive import set_state
-from charmhelpers.core.hookenv import action_fail
-
-"""
-`set_state` only works here because it's flushed to disk inside the `main()`
-loop. remove_state will need to be called inside the action method.
-"""
-set_state('actions.set-rate')
-
-try:
- main()
-except Exception as e:
- action_fail(repr(e))
+++ /dev/null
-#!/usr/bin/env python3
-import sys
-sys.path.append('lib')
-
-from charms.reactive import main
-from charms.reactive import set_state
-from charmhelpers.core.hookenv import action_fail
-
-"""
-`set_state` only works here because it's flushed to disk inside the `main()`
-loop. remove_state will need to be called inside the action method.
-"""
-set_state('actions.set-server')
-
-try:
- main()
-except Exception as e:
- action_fail(repr(e))
+++ /dev/null
-#!/usr/bin/env python3
-import sys
-sys.path.append('lib')
-
-from charms.reactive import main
-from charms.reactive import set_state
-from charmhelpers.core.hookenv import action_fail
-
-"""
-`set_state` only works here because it's flushed to disk inside the `main()`
-loop. remove_state will need to be called inside the action method.
-"""
-set_state('actions.start-traffic')
-
-try:
- main()
-except Exception as e:
- action_fail(repr(e))
+++ /dev/null
-#!/usr/bin/env python3
-import sys
-sys.path.append('lib')
-
-from charms.reactive import main
-from charms.reactive import set_state
-from charmhelpers.core.hookenv import action_fail
-
-"""
-`set_state` only works here because it's flushed to disk inside the `main()`
-loop. remove_state will need to be called inside the action method.
-"""
-set_state('actions.stop-traffic')
-
-try:
- main()
-except Exception as e:
- action_fail(repr(e))
+++ /dev/null
-options:
- mode:
- type: string
- default:
- description: "The service type: [ping, pong]"
+++ /dev/null
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+++ /dev/null
-includes:
- - layer:basic
- - layer:vnfproxy
-repo: https://osm.etsi.org/gerrit/osm/juju-charms
+++ /dev/null
-name: pingpong
-summary: <Fill in summary here>
-maintainer: Adam Israel <Adam.Israel@ronin>
-description: |
- <Multi-line description here>
-tags:
- # Replace "misc" with one or more whitelisted tags from this list:
- # https://jujucharms.com/docs/stable/authors-charm-metadata
- - misc
-subordinate: false
-series:
- - trusty
- - xenial
+++ /dev/null
-from charmhelpers.core.hookenv import (
- action_get,
- action_fail,
- action_set,
- config,
- status_set,
-)
-
-from charms.reactive import (
- remove_state as remove_flag,
- set_state as set_flag,
- when,
-)
-import charms.sshproxy
-from subprocess import (
- Popen,
- CalledProcessError,
- PIPE,
-)
-
-
-cfg = config()
-
-
-@when('config.changed')
-def config_changed():
- if all(k in cfg for k in ['mode']):
- if cfg['mode'] in ['ping', 'pong']:
- set_flag('pingpong.configured')
- status_set('active', 'ready!')
- return
- status_set('blocked', 'Waiting for configuration')
-
-
-def is_ping():
- if cfg['mode'] == 'ping':
- return True
- return False
-
-
-def is_pong():
- return not is_ping()
-
-
-def get_port():
- port = 18888
- if is_pong():
- port = 18889
- return port
-
-
-@when('pingpong.configured')
-@when('actions.start')
-def start():
- try:
- # Bring up the eth1 interface.
- # The selinux label on the file needs to be set correctly
- cmd = "sudo timeout 5 /sbin/restorecon -v /etc/sysconfig/network-scripts/ifcfg-eth1"
- result, err = charms.sshproxy._run(cmd)
- except Exception as e:
- err = "{}".format(e)
- action_fail('command failed: {}, errors: {}'.format(err, e.output))
- remove_flag('actions.start')
- return
-
- try:
- cmd = "sudo timeout 30 /sbin/ifup eth1"
- result, err = charms.sshproxy._run(cmd)
- except Exception as e:
- action_fail('command failed: {}, errors: {}'.format(e, e.output))
- remove_flag('actions.start')
- return
-
- try:
- cmd = "sudo timeout 30 /usr/bin/systemctl start {}". \
- format(cfg['mode'])
- result, err = charms.sshproxy._run(cmd)
- except Exception as e:
- action_fail('command failed: {}, errors: {}'.format(e, e.output))
- else:
- action_set({'stdout': result,
- 'errors': err})
- finally:
- remove_flag('actions.start')
-
-
-@when('pingpong.configured')
-@when('actions.stop')
-def stop():
- try:
- # Enter the command to stop your service(s)
- cmd = "sudo timeout 30 /usr/bin/systemctl stop {}".format(cfg['mode'])
- result, err = charms.sshproxy._run(cmd)
- except Exception as e:
- action_fail('command failed: {}, errors: {}'.format(e, e.output))
- else:
- action_set({'stdout': result,
- 'errors': err})
- finally:
- remove_flag('actions.stop')
-
-
-@when('pingpong.configured')
-@when('actions.restart')
-def restart():
- try:
- # Enter the command to restart your service(s)
- cmd = "sudo timeout 30 /usr/bin/systemctl restart {}".format(cfg['mode'])
- result, err = charms.sshproxy._run(cmd)
- except Exception as e:
- action_fail('command failed: {}, errors: {}'.format(e, e.output))
- else:
- action_set({'stdout': result,
- 'errors': err})
- finally:
- remove_flag('actions.restart')
-
-
-@when('pingpong.configured')
-@when('actions.set-server')
-def set_server():
- try:
- # Get the target service info
- target_ip = action_get('server-ip')
- target_port = action_get('server-port')
-
- data = '{{"ip" : "{}", "port" : {} }}'. \
- format(target_ip, target_port)
-
- cmd = format_curl(
- 'POST',
- '/server',
- data,
- )
-
- result, err = charms.sshproxy._run(cmd)
- except Exception as e:
- action_fail('command failed: {}, errors: {}'.format(e, e.output))
- else:
- action_set({'stdout': result,
- 'errors': err})
- finally:
- remove_flag('actions.set-server')
-
-
-@when('pingpong.configured')
-@when('actions.set-rate')
-def set_rate():
- try:
- if is_ping():
- rate = action_get('rate')
- cmd = format_curl('POST', '/rate', '{{"rate" : {}}}'.format(rate))
-
- result, err = charms.sshproxy._run(cmd)
- except Exception as e:
- err = "{}".format(e)
- action_fail('command failed: {}, errors: {}'.format(err, e.output))
- else:
- action_set({'stdout': result,
- 'errors': err})
- finally:
- remove_flag('actions.set-rate')
-
-
-@when('pingpong.configured')
-@when('actions.get-rate')
-def get_rate():
- try:
- if is_ping():
- cmd = format_curl('GET', '/rate')
-
- result, err = charms.sshproxy._run(cmd)
- except Exception as e:
- action_fail('command failed: {}, errors: {}'.format(e, e.output))
- else:
- action_set({'stdout': result,
- 'errors': err})
- finally:
- remove_flag('actions.get-rate')
-
-
-@when('pingpong.configured')
-@when('actions.get-state')
-def get_state():
- try:
- cmd = format_curl('GET', '/state')
-
- result, err = charms.sshproxy._run(cmd)
- except Exception as e:
- action_fail('command failed: {}, errors: {}'.format(e, e.output))
- else:
- action_set({'stdout': result,
- 'errors': err})
- finally:
- remove_flag('actions.get-state')
-
-
-@when('pingpong.configured')
-@when('actions.get-stats')
-def get_stats():
- try:
- cmd = format_curl('GET', '/stats')
-
- result, err = charms.sshproxy._run(cmd)
- except Exception as e:
- action_fail('command failed: {}, errors: {}'.format(e, e.output))
- else:
- action_set({'stdout': result,
- 'errors': err})
- finally:
- remove_flag('actions.get-stats')
-
-
-@when('pingpong.configured')
-@when('actions.start-traffic')
-def start_traffic():
- try:
- cmd = format_curl('POST', '/adminstatus/state', '{"enable" : true}')
-
- result, err = charms.sshproxy._run(cmd)
- except Exception as e:
- action_fail('command failed: {}, errors: {}'.format(e, e.output))
- else:
- action_set({'stdout': result,
- 'errors': err})
- finally:
- remove_flag('actions.start-traffic')
-
-
-@when('pingpong.configured')
-@when('actions.stop-traffic')
-def stop_traffic():
- try:
- cmd = format_curl('POST', '/adminstatus/state', '{"enable" : false}')
-
- result, err = charms.sshproxy._run(cmd)
- except Exception as e:
- action_fail('command failed: {}, errors: {}'.format(e, e.output))
- else:
- action_set({'stdout': result,
- 'errors': err})
- finally:
- remove_flag('actions.stop-traffic')
-
-
-def format_curl(method, path, data=None):
- """ A utility function to build the curl command line. """
-
- # method must be GET or POST
- if method not in ['GET', 'POST']:
- # Throw exception
- return None
-
- # Get our service info
- host = '127.0.0.1'
- port = get_port()
- mode = cfg['mode']
-
- cmd = ['curl',
- # '-D', '/dev/stdout',
- '-H', 'Accept: application/vnd.yang.data+xml',
- '-H', 'Content-Type: application/vnd.yang.data+json',
- '-X', method]
-
- if method == "POST" and data:
- cmd.append('-d')
- cmd.append('{}'.format(data))
-
- cmd.append(
- 'http://{}:{}/api/v1/{}{}'.format(host, port, mode, path)
- )
- return cmd
+++ /dev/null
-#!/bin/bash
-
-sudo add-apt-repository ppa:juju/stable -y
-sudo apt-get update
-sudo apt-get install amulet python-requests -y
+++ /dev/null
-#!/usr/bin/python3
-
-import amulet
-import requests
-import unittest
-
-
-class TestCharm(unittest.TestCase):
- def setUp(self):
- self.d = amulet.Deployment()
-
- self.d.add('pingpong')
- self.d.expose('pingpong')
-
- self.d.setup(timeout=900)
- self.d.sentry.wait()
-
- self.unit = self.d.sentry['pingpong'][0]
-
- def test_service(self):
- # test we can access over http
- page = requests.get('http://{}'.format(self.unit.info['public-address']))
- self.assertEqual(page.status_code, 200)
- # Now you can use self.d.sentry[SERVICE][UNIT] to address each of the units and perform
- # more in-depth steps. Each self.d.sentry[SERVICE][UNIT] has the following methods:
- # - .info - An array of the information of that unit from Juju
- # - .file(PATH) - Get the details of a file on that unit
- # - .file_contents(PATH) - Get plain text output of PATH file from that unit
- # - .directory(PATH) - Get details of directory
- # - .directory_contents(PATH) - List files and folders in PATH on that unit
- # - .relation(relation, service:rel) - Get relation data from return service
-
-
-if __name__ == '__main__':
- unittest.main()
+++ /dev/null
-#!/usr/bin/make
-
-all: lint unit_test
-
-
-.PHONY: clean
-clean:
- @rm -rf .tox
-
-.PHONY: apt_prereqs
-apt_prereqs:
- @# Need tox, but don't install the apt version unless we have to (don't want to conflict with pip)
- @which tox >/dev/null || (sudo apt-get install -y python-pip && sudo pip install tox)
-
-.PHONY: lint
-lint: apt_prereqs
- @tox --notest
- @PATH=.tox/py34/bin:.tox/py35/bin flake8 $(wildcard hooks reactive lib unit_tests tests)
- @charm proof
-
-.PHONY: unit_test
-unit_test: apt_prereqs
- @echo Starting tests...
- tox
+++ /dev/null
-# Overview
-
-This is the base layer for all charms [built using layers][building]. It
-provides all of the standard Juju hooks and runs the
-[charms.reactive.main][charms.reactive] loop for them. It also bootstraps the
-[charm-helpers][] and [charms.reactive][] libraries and all of their
-dependencies for use by the charm.
-
-# Usage
-
-To create a charm layer using this base layer, you need only include it in
-a `layer.yaml` file:
-
-```yaml
-includes: ['layer:basic']
-```
-
-This will fetch this layer from [interfaces.juju.solutions][] and incorporate
-it into your charm layer. You can then add handlers under the `reactive/`
-directory. Note that **any** file under `reactive/` will be expected to
-contain handlers, whether as Python decorated functions or [executables][non-python]
-using the [external handler protocol][].
-
-### Charm Dependencies
-
-Each layer can include a `wheelhouse.txt` file with Python requirement lines.
-For example, this layer's `wheelhouse.txt` includes:
-
-```
-pip>=7.0.0,<8.0.0
-charmhelpers>=0.4.0,<1.0.0
-charms.reactive>=0.1.0,<2.0.0
-```
-
-All of these dependencies from each layer will be fetched (and updated) at build
-time and will be automatically installed by this base layer before any reactive
-handlers are run.
-
-Note that the `wheelhouse.txt` file is intended for **charm** dependencies only.
-That is, for libraries that the charm code itself needs to do its job of deploying
-and configuring the payload. If the payload itself has Python dependencies, those
-should be handled separately, by the charm.
-
-See [PyPI][pypi charms.X] for packages under the `charms.` namespace which might
-be useful for your charm.
-
-### Layer Namespace
-
-Each layer has a reserved section in the `charms.layer.` Python package namespace,
-which it can populate by including a `lib/charms/layer/<layer-name>.py` file or
-by placing files under `lib/charms/layer/<layer-name>/`. (If the layer name
-includes hyphens, replace them with underscores.) These can be helpers that the
-layer uses internally, or it can expose classes or functions to be used by other
-layers to interact with that layer.
-
-For example, a layer named `foo` could include a `lib/charms/layer/foo.py` file
-with some helper functions that other layers could access using:
-
-```python
-from charms.layer.foo import my_helper
-```
-
-### Layer Options
-
-Any layer can define options in its `layer.yaml`. Those options can then be set
-by other layers to change the behavior of your layer. The options are defined
-using [jsonschema][], which is the same way that [action paramters][] are defined.
-
-For example, the `foo` layer could include the following option definitons:
-
-```yaml
-includes: ['layer:basic']
-defines: # define some options for this layer (the layer "foo")
- enable-bar: # define an "enable-bar" option for this layer
- description: If true, enable support for "bar".
- type: boolean
- default: false
-```
-
-A layer using `foo` could then set it:
-
-```yaml
-includes: ['layer:foo']
-options:
- foo: # setting options for the "foo" layer
- enable-bar: true # set the "enable-bar" option to true
-```
-
-The `foo` layer can then use the `charms.layer.options` helper to load the values
-for the options that it defined. For example:
-
-```python
-from charms import layer
-
-@when('state')
-def do_thing():
- layer_opts = layer.options('foo') # load all of the options for the "foo" layer
- if layer_opts['enable-bar']: # check the value of the "enable-bar" option
- hookenv.log("Bar is enabled")
-```
-
-You can also access layer options in other handlers, such as Bash, using
-the command-line interface:
-
-```bash
-. charms.reactive.sh
-
-@when 'state'
-function do_thing() {
- if layer_option foo enable-bar; then
- juju-log "Bar is enabled"
- juju-log "bar-value is: $(layer_option foo bar-value)"
- fi
-}
-
-reactive_handler_main
-```
-
-Note that options of type `boolean` will set the exit code, while other types
-will be printed out.
-
-# Hooks
-
-This layer provides hooks that other layers can react to using the decorators
-of the [charms.reactive][] library:
-
- * `config-changed`
- * `install`
- * `leader-elected`
- * `leader-settings-changed`
- * `start`
- * `stop`
- * `upgrade-charm`
- * `update-status`
-
-Other hooks are not implemented at this time. A new layer can implement storage
-or relation hooks in their own layer by putting them in the `hooks` directory.
-
-**Note:** Because `update-status` is invoked every 5 minutes, you should take
-care to ensure that your reactive handlers only invoke expensive operations
-when absolutely necessary. It is recommended that you use helpers like
-[`@only_once`][], [`@when_file_changed`][], and [`data_changed`][] to ensure
-that handlers run only when necessary.
-
-# Layer Configuration
-
-This layer supports the following options, which can be set in `layer.yaml`:
-
- * **packages** A list of system packages to be installed before the reactive
- handlers are invoked.
-
- * **use_venv** If set to true, the charm dependencies from the various
- layers' `wheelhouse.txt` files will be installed in a Python virtualenv
- located at `$CHARM_DIR/../.venv`. This keeps charm dependencies from
- conflicting with payload dependencies, but you must take care to preserve
- the environment and interpreter if using `execl` or `subprocess`.
-
- * **include_system_packages** If set to true and using a venv, include
- the `--system-site-packages` options to make system Python libraries
- visible within the venv.
-
-An example `layer.yaml` using these options might be:
-
-```yaml
-includes: ['layer:basic']
-options:
- basic:
- packages: ['git']
- use_venv: true
- include_system_packages: true
-```
-
-
-# Reactive States
-
-This layer will set the following states:
-
- * **`config.changed`** Any config option has changed from its previous value.
- This state is cleared automatically at the end of each hook invocation.
-
- * **`config.changed.<option>`** A specific config option has changed.
- **`<option>`** will be replaced by the config option name from `config.yaml`.
- This state is cleared automatically at the end of each hook invocation.
-
- * **`config.set.<option>`** A specific config option has a True or non-empty
- value set. **`<option>`** will be replaced by the config option name from
- `config.yaml`. This state is cleared automatically at the end of each hook
- invocation.
-
- * **`config.default.<option>`** A specific config option is set to its
- default value. **`<option>`** will be replaced by the config option name
- from `config.yaml`. This state is cleared automatically at the end of
- each hook invocation.
-
-An example using the config states would be:
-
-```python
-@when('config.changed.my-opt')
-def my_opt_changed():
- update_config()
- restart_service()
-```
-
-
-# Actions
-
-This layer currently does not define any actions.
-
-
-[building]: https://jujucharms.com/docs/devel/authors-charm-building
-[charm-helpers]: https://pythonhosted.org/charmhelpers/
-[charms.reactive]: https://pythonhosted.org/charms.reactive/
-[interfaces.juju.solutions]: http://interfaces.juju.solutions/
-[non-python]: https://pythonhosted.org/charms.reactive/#non-python-reactive-handlers
-[external handler protocol]: https://pythonhosted.org/charms.reactive/charms.reactive.bus.html#charms.reactive.bus.ExternalHandler
-[jsonschema]: http://json-schema.org/
-[action paramters]: https://jujucharms.com/docs/stable/authors-charm-actions
-[pypi charms.X]: https://pypi.python.org/pypi?%3Aaction=search&term=charms.&submit=search
-[`@only_once`]: https://pythonhosted.org/charms.reactive/charms.reactive.decorators.html#charms.reactive.decorators.only_once
-[`@when_file_changed`]: https://pythonhosted.org/charms.reactive/charms.reactive.decorators.html#charms.reactive.decorators.when_file_changed
-[`data_changed`]: https://pythonhosted.org/charms.reactive/charms.reactive.helpers.html#charms.reactive.helpers.data_changed
+++ /dev/null
-"ping":
- "description": "ping a thing!"
- "params":
- "count":
- "description": "Stop after sending count ECHO_REQUEST packets"
- "type": "integer"
- "default": !!int "30"
- "destination":
- "description": "destination of ping request"
- "type": "string"
- "required":
- - "destination"
+++ /dev/null
-#!/usr/bin/env python3
-import sys
-sys.path.append('lib')
-
-from charms.reactive import main
-from charms.reactive import set_state
-from charmhelpers.core.hookenv import action_fail
-
-"""
-`set_state` only works here because it's flushed to disk inside the `main()`
-loop. remove_state will need to be called inside the action method.
-"""
-set_state('actions.ping')
-
-try:
- main()
-except Exception as e:
- action_fail(repr(e))
+++ /dev/null
-"options":
- "hostname":
- "default": !!null ""
- "type": "string"
- "description": "Hostname or IP of the VyOS"
- "user":
- "type": "string"
- "default": "vyos"
- "description": "Username for VyOS"
- "pass":
- "type": "string"
- "default": !!null ""
- "description": "Password for VyOS"
+++ /dev/null
-Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0
-
-Files: *
-Copyright: 2015, Canonical Ltd.
-License: Apache-2.0
-
-License: Apache-2.0
- On Debian GNU/Linux system you can find the complete text of the
- Apache-2.0 license in '/usr/share/common-licenses/Apache-2.0'
+++ /dev/null
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- sodipodi:type="arc" />\r
- <path\r
- sodipodi:type="star"\r
- style="color:#000000;fill:#f5f5f5;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:3;marker:none;visibility:visible;display:inline;overflow:visible;enable-background:accumulate"\r
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- sodipodi:sides="5"\r
- sodipodi:cx="666.19574"\r
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- inkscape:rounded="0.1"\r
- inkscape:randomized="0"\r
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+++ /dev/null
-"options":
- "basic":
- "packages":
- - "python-dev"
- - "libffi-dev"
- - "libssl-dev"
- "use_venv": !!bool "false"
- "include_system_packages": !!bool "false"
- "vyos-proxy": {}
-"includes":
-- "layer:basic"
-"is": "vyos-proxy"
-"repo": "https://osm.etsi.org/gerrit/osm/juju-charms"
+++ /dev/null
-"name": "vyos-proxy"
-"summary": "VyOS Proxy charm for ping"
-"description": |
- VyOS Proxy charm
-"tags":
-- "vnf"
-- "network"
-"maintainers":
-- "Marco Ceppi <marco.ceppi@canonical.com>"
-"series":
-- "xenial"
-- "trusty"
+++ /dev/null
-
-import subprocess
-import paramiko
-
-from charmhelpers.core.hookenv import (
- config,
- status_set,
- action_get,
- action_set,
- action_fail,
-)
-
-from charms.reactive import (
- when,
- when_not,
- set_state as set_flag,
- remove_state as remove_flag,
-)
-
-
-@when('config.changed')
-def test_connection():
- status_set('maintenance', 'configuring ssh connection')
- remove_flag('vyos-proxy.ready')
- try:
- who, _ = run('whoami')
- except MgmtNotConfigured as e:
- remove_flag('vyos-proxy.configured')
- status_set('blocked', str(e))
- except subprocess.CalledProcessError as e:
- remove_flag('vyos-proxy.configured')
- status_set('blocked', e.output)
- else:
- set_flag('vyos-proxy.configured')
-
-
-@when('vyos-proxy.configured')
-@when_not('vyos-proxy.ready')
-def vyos_proxy_ready():
- status_set('active', 'ready')
- set_flag('vyos-proxy.ready')
-
-
-@when('actions.ping')
-@when_not('vyos-proxy.configured')
-def pingme():
- action_fail('proxy is not ready')
-
-
-@when('actions.ping')
-@when('vyos-proxy.configured')
-def pingme_forreal():
- try:
- result, err = run('ping -qc {} {}'.format(action_get('count'), action_get('destination')))
- except:
- action_fail('ping command failed')
- finally:
- remove_flag('actions.ping')
-
- # Here you can send results back from ping, if you had time to parse it
- action_set({'output': result})
-
-
-
-class MgmtNotConfigured(Exception):
- pass
-
-
-def run(cmd):
- ''' Suddenly this project needs to SSH to something. So we replicate what
- _run was doing with subprocess using the Paramiko library. This is
- temporary until this charm /is/ the VPE Router '''
-
- cfg = config()
-
- hostname = cfg.get('hostname')
- password = cfg.get('pass')
- username = cfg.get('user')
-
- if not (username and password and hostname):
- raise MgmtNotConfigured('incomplete remote credentials')
-
- client = paramiko.SSHClient()
- client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
-
- try:
- client.connect(cfg.get('hostname'), port=22,
- username=cfg.get('user'), password=cfg.get('pass'))
- except paramiko.ssh_exception.AuthenticationException:
- raise MgmtNotConfigured('invalid credentials')
-
- stdin, stdout, stderr = client.exec_command(cmd)
- retcode = stdout.channel.recv_exit_status()
- client.close() # @TODO re-use connections
- if retcode > 0:
- output = stderr.read().strip()
- raise subprocess.CalledProcessError(returncode=retcode, cmd=cmd,
- output=output)
- return (''.join(stdout), ''.join(stderr))
+++ /dev/null
-flake8
-pytest
+++ /dev/null
-0
\ No newline at end of file
+++ /dev/null
-[tox]
-skipsdist=True
-envlist = py34, py35
-skip_missing_interpreters = True
-
-[testenv]
-commands = py.test -v
-deps =
- -r{toxinidir}/requirements.txt
-
-[flake8]
-exclude=docs
+++ /dev/null
-paramiko==2.0.1
projects / osm / devops.git / commitdiff
