From 3377928d267019b66a219da3bba007618256d2d4 Mon Sep 17 00:00:00 2001 From: Adam Israel Date: Wed, 5 Oct 2016 09:08:16 -0700 Subject: [PATCH] Add netutils charm layer Signed-off-by: Adam Israel --- layers/netutils/LICENSE | 202 +++++++++++++++ layers/netutils/README.md | 54 ++++ layers/netutils/actions.yaml | 32 +++ layers/netutils/actions/nmap | 18 ++ layers/netutils/actions/ping | 18 ++ layers/netutils/actions/traceroute | 18 ++ layers/netutils/icon.svg | 279 +++++++++++++++++++++ layers/netutils/layer.yaml | 7 + layers/netutils/metadata.yaml | 15 ++ layers/netutils/reactive/layer_netutils.py | 86 +++++++ layers/netutils/tests/00-setup | 5 + layers/netutils/tests/10-deploy | 31 +++ 12 files changed, 765 insertions(+) create mode 100644 layers/netutils/LICENSE create mode 100644 layers/netutils/README.md create mode 100644 layers/netutils/actions.yaml create mode 100755 layers/netutils/actions/nmap create mode 100755 layers/netutils/actions/ping create mode 100755 layers/netutils/actions/traceroute create mode 100644 layers/netutils/icon.svg create mode 100644 layers/netutils/layer.yaml create mode 100644 layers/netutils/metadata.yaml create mode 100644 layers/netutils/reactive/layer_netutils.py create mode 100755 layers/netutils/tests/00-setup create mode 100755 layers/netutils/tests/10-deploy diff --git a/layers/netutils/LICENSE b/layers/netutils/LICENSE new file mode 100644 index 00000000..d6456956 --- /dev/null +++ b/layers/netutils/LICENSE @@ -0,0 +1,202 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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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. diff --git a/layers/netutils/README.md b/layers/netutils/README.md new file mode 100644 index 00000000..525c2d7b --- /dev/null +++ b/layers/netutils/README.md @@ -0,0 +1,54 @@ +# 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 +``` + +## 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=---). diff --git a/layers/netutils/actions.yaml b/layers/netutils/actions.yaml new file mode 100644 index 00000000..9995f777 --- /dev/null +++ b/layers/netutils/actions.yaml @@ -0,0 +1,32 @@ +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 diff --git a/layers/netutils/actions/nmap b/layers/netutils/actions/nmap new file mode 100755 index 00000000..ede4f5b9 --- /dev/null +++ b/layers/netutils/actions/nmap @@ -0,0 +1,18 @@ +#!/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)) diff --git a/layers/netutils/actions/ping b/layers/netutils/actions/ping new file mode 100755 index 00000000..9850fe76 --- /dev/null +++ b/layers/netutils/actions/ping @@ -0,0 +1,18 @@ +#!/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)) diff --git a/layers/netutils/actions/traceroute b/layers/netutils/actions/traceroute new file mode 100755 index 00000000..229ed327 --- /dev/null +++ b/layers/netutils/actions/traceroute @@ -0,0 +1,18 @@ +#!/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)) diff --git a/layers/netutils/icon.svg b/layers/netutils/icon.svg new file mode 100644 index 00000000..e092eef7 --- /dev/null +++ b/layers/netutils/icon.svg @@ -0,0 +1,279 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + image/svg+xml + + + + + + + + + + + diff --git a/layers/netutils/layer.yaml b/layers/netutils/layer.yaml new file mode 100644 index 00000000..c1bf2cf0 --- /dev/null +++ b/layers/netutils/layer.yaml @@ -0,0 +1,7 @@ +repo: git@github.com:AdamIsrael/layer-netutils.git +includes: ['layer:basic'] # if you use any interfaces, add them here +options: + basic: + packages: + - traceroute + - nmap diff --git a/layers/netutils/metadata.yaml b/layers/netutils/metadata.yaml new file mode 100644 index 00000000..c42d9637 --- /dev/null +++ b/layers/netutils/metadata.yaml @@ -0,0 +1,15 @@ +name: netutils +summary: A suite of network-related utilities. +maintainer: Adam Israel +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 diff --git a/layers/netutils/reactive/layer_netutils.py b/layers/netutils/reactive/layer_netutils.py new file mode 100644 index 00000000..8f8db268 --- /dev/null +++ b/layers/netutils/reactive/layer_netutils.py @@ -0,0 +1,86 @@ +from charmhelpers.core.hookenv import ( + config, + status_set, + action_get, + action_set, + action_fail, + log, +) + +from charms.reactive import ( + when, + when_not, + set_state as set_flag, + remove_state as remove_flag, +) + +import subprocess + + +@when_not('netutils.ready') +def ready(): + status_set('active', 'Ready!') + set_flag('netutils.ready') + + +@when('actions.nmap') +def nmap(): + err = '' + try: + result, err = _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 = _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 = _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') + + + +def _run(cmd, env=None): + if isinstance(cmd, str): + cmd = cmd.split() if ' ' in cmd else [cmd] + + log(cmd) + p = subprocess.Popen(cmd, + env=env, + stdout=subprocess.PIPE, + stderr=subprocess.PIPE) + stdout, stderr = p.communicate() + retcode = p.poll() + if retcode > 0: + raise subprocess.CalledProcessError(returncode=retcode, + cmd=cmd, + output=stderr.decode("utf-8").strip()) + return (stdout.decode('utf-8'), stderr.decode('utf-8')) diff --git a/layers/netutils/tests/00-setup b/layers/netutils/tests/00-setup new file mode 100755 index 00000000..f0616a56 --- /dev/null +++ b/layers/netutils/tests/00-setup @@ -0,0 +1,5 @@ +#!/bin/bash + +sudo add-apt-repository ppa:juju/stable -y +sudo apt-get update +sudo apt-get install amulet python-requests -y diff --git a/layers/netutils/tests/10-deploy b/layers/netutils/tests/10-deploy new file mode 100755 index 00000000..ef269cda --- /dev/null +++ b/layers/netutils/tests/10-deploy @@ -0,0 +1,31 @@ +#!/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 -- 2.25.1