Compiled charm published to cs:~nfv/vpe-router-1
Change-Id: I79a7f51de91ce7aaf17922afd966e436d7784da3
Signed-off-by: Adam Israel <adam.israel@canonical.com>
diff --git a/builds/vpe-router/deps/layer/layer-basic/.gitignore b/builds/vpe-router/deps/layer/layer-basic/.gitignore
new file mode 100644
index 0000000..56e95aa
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/.gitignore
@@ -0,0 +1,5 @@
+*.pyc
+*~
+.ropeproject
+.settings
+.tox
diff --git a/builds/vpe-router/deps/layer/layer-basic/Makefile b/builds/vpe-router/deps/layer/layer-basic/Makefile
new file mode 100644
index 0000000..a1ad3a5
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/Makefile
@@ -0,0 +1,24 @@
+#!/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
diff --git a/builds/vpe-router/deps/layer/layer-basic/README.md b/builds/vpe-router/deps/layer/layer-basic/README.md
new file mode 100644
index 0000000..0337c83
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/README.md
@@ -0,0 +1,221 @@
+# 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
diff --git a/builds/vpe-router/deps/layer/layer-basic/bin/layer_option b/builds/vpe-router/deps/layer/layer-basic/bin/layer_option
new file mode 100755
index 0000000..90dc400
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/bin/layer_option
@@ -0,0 +1,24 @@
+#!/usr/bin/env python3
+
+import sys
+sys.path.append('lib')
+
+import argparse
+from charms.layer import options
+
+
+parser = argparse.ArgumentParser(description='Access layer options.')
+parser.add_argument('section',
+ help='the section, or layer, the option is from')
+parser.add_argument('option',
+ help='the option to access')
+
+args = parser.parse_args()
+value = options(args.section).get(args.option, '')
+if isinstance(value, bool):
+ sys.exit(0 if value else 1)
+elif isinstance(value, list):
+ for val in value:
+ print(val)
+else:
+ print(value)
diff --git a/builds/vpe-router/deps/layer/layer-basic/copyright b/builds/vpe-router/deps/layer/layer-basic/copyright
new file mode 100644
index 0000000..afa853f
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/copyright
@@ -0,0 +1,9 @@
+Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0
+
+Files: *
+Copyright: 2015, Canonical Ltd.
+License: GPL-3
+
+License: GPL-3
+ On Debian GNU/Linux system you can find the complete text of the
+ GPL-3 license in '/usr/share/common-licenses/GPL-3'
diff --git a/builds/vpe-router/deps/layer/layer-basic/hooks/config-changed b/builds/vpe-router/deps/layer/layer-basic/hooks/config-changed
new file mode 100755
index 0000000..d36afe1
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/hooks/config-changed
@@ -0,0 +1,19 @@
+#!/usr/bin/env python3
+
+# Load modules from $CHARM_DIR/lib
+import sys
+sys.path.append('lib')
+
+from charms.layer import basic
+basic.bootstrap_charm_deps()
+basic.init_config_states()
+
+
+# This will load and run the appropriate @hook and other decorated
+# handlers from $CHARM_DIR/reactive, $CHARM_DIR/hooks/reactive,
+# and $CHARM_DIR/hooks/relations.
+#
+# See https://jujucharms.com/docs/stable/authors-charm-building
+# for more information on this pattern.
+from charms.reactive import main
+main()
diff --git a/builds/vpe-router/deps/layer/layer-basic/hooks/hook.template b/builds/vpe-router/deps/layer/layer-basic/hooks/hook.template
new file mode 100644
index 0000000..d36afe1
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/hooks/hook.template
@@ -0,0 +1,19 @@
+#!/usr/bin/env python3
+
+# Load modules from $CHARM_DIR/lib
+import sys
+sys.path.append('lib')
+
+from charms.layer import basic
+basic.bootstrap_charm_deps()
+basic.init_config_states()
+
+
+# This will load and run the appropriate @hook and other decorated
+# handlers from $CHARM_DIR/reactive, $CHARM_DIR/hooks/reactive,
+# and $CHARM_DIR/hooks/relations.
+#
+# See https://jujucharms.com/docs/stable/authors-charm-building
+# for more information on this pattern.
+from charms.reactive import main
+main()
diff --git a/builds/vpe-router/deps/layer/layer-basic/hooks/install b/builds/vpe-router/deps/layer/layer-basic/hooks/install
new file mode 100755
index 0000000..d36afe1
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/hooks/install
@@ -0,0 +1,19 @@
+#!/usr/bin/env python3
+
+# Load modules from $CHARM_DIR/lib
+import sys
+sys.path.append('lib')
+
+from charms.layer import basic
+basic.bootstrap_charm_deps()
+basic.init_config_states()
+
+
+# This will load and run the appropriate @hook and other decorated
+# handlers from $CHARM_DIR/reactive, $CHARM_DIR/hooks/reactive,
+# and $CHARM_DIR/hooks/relations.
+#
+# See https://jujucharms.com/docs/stable/authors-charm-building
+# for more information on this pattern.
+from charms.reactive import main
+main()
diff --git a/builds/vpe-router/deps/layer/layer-basic/hooks/leader-elected b/builds/vpe-router/deps/layer/layer-basic/hooks/leader-elected
new file mode 100755
index 0000000..d36afe1
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/hooks/leader-elected
@@ -0,0 +1,19 @@
+#!/usr/bin/env python3
+
+# Load modules from $CHARM_DIR/lib
+import sys
+sys.path.append('lib')
+
+from charms.layer import basic
+basic.bootstrap_charm_deps()
+basic.init_config_states()
+
+
+# This will load and run the appropriate @hook and other decorated
+# handlers from $CHARM_DIR/reactive, $CHARM_DIR/hooks/reactive,
+# and $CHARM_DIR/hooks/relations.
+#
+# See https://jujucharms.com/docs/stable/authors-charm-building
+# for more information on this pattern.
+from charms.reactive import main
+main()
diff --git a/builds/vpe-router/deps/layer/layer-basic/hooks/leader-settings-changed b/builds/vpe-router/deps/layer/layer-basic/hooks/leader-settings-changed
new file mode 100755
index 0000000..d36afe1
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/hooks/leader-settings-changed
@@ -0,0 +1,19 @@
+#!/usr/bin/env python3
+
+# Load modules from $CHARM_DIR/lib
+import sys
+sys.path.append('lib')
+
+from charms.layer import basic
+basic.bootstrap_charm_deps()
+basic.init_config_states()
+
+
+# This will load and run the appropriate @hook and other decorated
+# handlers from $CHARM_DIR/reactive, $CHARM_DIR/hooks/reactive,
+# and $CHARM_DIR/hooks/relations.
+#
+# See https://jujucharms.com/docs/stable/authors-charm-building
+# for more information on this pattern.
+from charms.reactive import main
+main()
diff --git a/builds/vpe-router/deps/layer/layer-basic/hooks/start b/builds/vpe-router/deps/layer/layer-basic/hooks/start
new file mode 100755
index 0000000..d36afe1
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/hooks/start
@@ -0,0 +1,19 @@
+#!/usr/bin/env python3
+
+# Load modules from $CHARM_DIR/lib
+import sys
+sys.path.append('lib')
+
+from charms.layer import basic
+basic.bootstrap_charm_deps()
+basic.init_config_states()
+
+
+# This will load and run the appropriate @hook and other decorated
+# handlers from $CHARM_DIR/reactive, $CHARM_DIR/hooks/reactive,
+# and $CHARM_DIR/hooks/relations.
+#
+# See https://jujucharms.com/docs/stable/authors-charm-building
+# for more information on this pattern.
+from charms.reactive import main
+main()
diff --git a/builds/vpe-router/deps/layer/layer-basic/hooks/stop b/builds/vpe-router/deps/layer/layer-basic/hooks/stop
new file mode 100755
index 0000000..d36afe1
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/hooks/stop
@@ -0,0 +1,19 @@
+#!/usr/bin/env python3
+
+# Load modules from $CHARM_DIR/lib
+import sys
+sys.path.append('lib')
+
+from charms.layer import basic
+basic.bootstrap_charm_deps()
+basic.init_config_states()
+
+
+# This will load and run the appropriate @hook and other decorated
+# handlers from $CHARM_DIR/reactive, $CHARM_DIR/hooks/reactive,
+# and $CHARM_DIR/hooks/relations.
+#
+# See https://jujucharms.com/docs/stable/authors-charm-building
+# for more information on this pattern.
+from charms.reactive import main
+main()
diff --git a/builds/vpe-router/deps/layer/layer-basic/hooks/update-status b/builds/vpe-router/deps/layer/layer-basic/hooks/update-status
new file mode 100755
index 0000000..d36afe1
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/hooks/update-status
@@ -0,0 +1,19 @@
+#!/usr/bin/env python3
+
+# Load modules from $CHARM_DIR/lib
+import sys
+sys.path.append('lib')
+
+from charms.layer import basic
+basic.bootstrap_charm_deps()
+basic.init_config_states()
+
+
+# This will load and run the appropriate @hook and other decorated
+# handlers from $CHARM_DIR/reactive, $CHARM_DIR/hooks/reactive,
+# and $CHARM_DIR/hooks/relations.
+#
+# See https://jujucharms.com/docs/stable/authors-charm-building
+# for more information on this pattern.
+from charms.reactive import main
+main()
diff --git a/builds/vpe-router/deps/layer/layer-basic/hooks/upgrade-charm b/builds/vpe-router/deps/layer/layer-basic/hooks/upgrade-charm
new file mode 100755
index 0000000..1465e8e
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/hooks/upgrade-charm
@@ -0,0 +1,28 @@
+#!/usr/bin/env python3
+
+# Load modules from $CHARM_DIR/lib
+import os
+import sys
+sys.path.append('lib')
+
+# This is an upgrade-charm context, make sure we install latest deps
+if not os.path.exists('wheelhouse/.upgrade'):
+ open('wheelhouse/.upgrade', 'w').close()
+ if os.path.exists('wheelhouse/.bootstrapped'):
+ os.unlink('wheelhouse/.bootstrapped')
+else:
+ os.unlink('wheelhouse/.upgrade')
+
+from charms.layer import basic
+basic.bootstrap_charm_deps()
+basic.init_config_states()
+
+
+# This will load and run the appropriate @hook and other decorated
+# handlers from $CHARM_DIR/reactive, $CHARM_DIR/hooks/reactive,
+# and $CHARM_DIR/hooks/relations.
+#
+# See https://jujucharms.com/docs/stable/authors-charm-building
+# for more information on this pattern.
+from charms.reactive import main
+main()
diff --git a/builds/vpe-router/deps/layer/layer-basic/layer.yaml b/builds/vpe-router/deps/layer/layer-basic/layer.yaml
new file mode 100644
index 0000000..f826b3f
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/layer.yaml
@@ -0,0 +1,18 @@
+defines:
+ packages:
+ type: array
+ default: []
+ description: Additional packages to be installed at time of bootstrap
+ use_venv:
+ type: boolean
+ default: false
+ description: >
+ Install charm dependencies (wheelhouse) into a Python virtual environment
+ to help avoid conflicts with other charms or libraries on the machine.
+ include_system_packages:
+ type: boolean
+ default: false
+ description: >
+ If using a virtual environment, allow the venv to see Python packages
+ installed at the system level. This reduces isolation, but is necessary
+ to use Python packages installed via apt-get.
diff --git a/builds/vpe-router/deps/layer/layer-basic/lib/charms/layer/__init__.py b/builds/vpe-router/deps/layer/layer-basic/lib/charms/layer/__init__.py
new file mode 100644
index 0000000..33d37e9
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/lib/charms/layer/__init__.py
@@ -0,0 +1,21 @@
+import os
+
+
+class LayerOptions(dict):
+ def __init__(self, layer_file, section=None):
+ import yaml # defer, might not be available until bootstrap
+ with open(layer_file) as f:
+ layer = yaml.safe_load(f.read())
+ opts = layer.get('options', {})
+ if section and section in opts:
+ super(LayerOptions, self).__init__(opts.get(section))
+ else:
+ super(LayerOptions, self).__init__(opts)
+
+
+def options(section=None, layer_file=None):
+ if not layer_file:
+ base_dir = os.environ.get('CHARM_DIR', os.getcwd())
+ layer_file = os.path.join(base_dir, 'layer.yaml')
+
+ return LayerOptions(layer_file, section)
diff --git a/builds/vpe-router/deps/layer/layer-basic/lib/charms/layer/basic.py b/builds/vpe-router/deps/layer/layer-basic/lib/charms/layer/basic.py
new file mode 100644
index 0000000..411d831
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/lib/charms/layer/basic.py
@@ -0,0 +1,159 @@
+import os
+import sys
+import shutil
+import platform
+from glob import glob
+from subprocess import check_call
+
+from charms.layer.execd import execd_preinstall
+
+
+def bootstrap_charm_deps():
+ """
+ Set up the base charm dependencies so that the reactive system can run.
+ """
+ # execd must happen first, before any attempt to install packages or
+ # access the network, because sites use this hook to do bespoke
+ # configuration and install secrets so the rest of this bootstrap
+ # and the charm itself can actually succeed. This call does nothing
+ # unless the operator has created and populated $CHARM_DIR/exec.d.
+ execd_preinstall()
+ # ensure that $CHARM_DIR/bin is on the path, for helper scripts
+ os.environ['PATH'] += ':%s' % os.path.join(os.environ['CHARM_DIR'], 'bin')
+ venv = os.path.abspath('../.venv')
+ vbin = os.path.join(venv, 'bin')
+ vpip = os.path.join(vbin, 'pip')
+ vpy = os.path.join(vbin, 'python')
+ if os.path.exists('wheelhouse/.bootstrapped'):
+ from charms import layer
+ cfg = layer.options('basic')
+ if cfg.get('use_venv') and '.venv' not in sys.executable:
+ # activate the venv
+ os.environ['PATH'] = ':'.join([vbin, os.environ['PATH']])
+ reload_interpreter(vpy)
+ return
+ # bootstrap wheelhouse
+ if os.path.exists('wheelhouse'):
+ with open('/root/.pydistutils.cfg', 'w') as fp:
+ # make sure that easy_install also only uses the wheelhouse
+ # (see https://github.com/pypa/pip/issues/410)
+ charm_dir = os.environ['CHARM_DIR']
+ fp.writelines([
+ "[easy_install]\n",
+ "allow_hosts = ''\n",
+ "find_links = file://{}/wheelhouse/\n".format(charm_dir),
+ ])
+ apt_install(['python3-pip', 'python3-setuptools', 'python3-yaml'])
+ from charms import layer
+ cfg = layer.options('basic')
+ # include packages defined in layer.yaml
+ apt_install(cfg.get('packages', []))
+ # if we're using a venv, set it up
+ if cfg.get('use_venv'):
+ if not os.path.exists(venv):
+ distname, version, series = platform.linux_distribution()
+ if series in ('precise', 'trusty'):
+ apt_install(['python-virtualenv'])
+ else:
+ apt_install(['virtualenv'])
+ cmd = ['virtualenv', '-ppython3', '--never-download', venv]
+ if cfg.get('include_system_packages'):
+ cmd.append('--system-site-packages')
+ check_call(cmd)
+ os.environ['PATH'] = ':'.join([vbin, os.environ['PATH']])
+ pip = vpip
+ else:
+ pip = 'pip3'
+ # save a copy of system pip to prevent `pip3 install -U pip`
+ # from changing it
+ if os.path.exists('/usr/bin/pip'):
+ shutil.copy2('/usr/bin/pip', '/usr/bin/pip.save')
+ # need newer pip, to fix spurious Double Requirement error:
+ # https://github.com/pypa/pip/issues/56
+ check_call([pip, 'install', '-U', '--no-index', '-f', 'wheelhouse',
+ 'pip'])
+ # install the rest of the wheelhouse deps
+ check_call([pip, 'install', '-U', '--no-index', '-f', 'wheelhouse'] +
+ glob('wheelhouse/*'))
+ if not cfg.get('use_venv'):
+ # restore system pip to prevent `pip3 install -U pip`
+ # from changing it
+ if os.path.exists('/usr/bin/pip.save'):
+ shutil.copy2('/usr/bin/pip.save', '/usr/bin/pip')
+ os.remove('/usr/bin/pip.save')
+ os.remove('/root/.pydistutils.cfg')
+ # flag us as having already bootstrapped so we don't do it again
+ open('wheelhouse/.bootstrapped', 'w').close()
+ # Ensure that the newly bootstrapped libs are available.
+ # Note: this only seems to be an issue with namespace packages.
+ # Non-namespace-package libs (e.g., charmhelpers) are available
+ # without having to reload the interpreter. :/
+ reload_interpreter(vpy if cfg.get('use_venv') else sys.argv[0])
+
+
+def reload_interpreter(python):
+ """
+ Reload the python interpreter to ensure that all deps are available.
+
+ Newly installed modules in namespace packages sometimes seemt to
+ not be picked up by Python 3.
+ """
+ os.execle(python, python, sys.argv[0], os.environ)
+
+
+def apt_install(packages):
+ """
+ Install apt packages.
+
+ This ensures a consistent set of options that are often missed but
+ should really be set.
+ """
+ if isinstance(packages, (str, bytes)):
+ packages = [packages]
+
+ env = os.environ.copy()
+
+ if 'DEBIAN_FRONTEND' not in env:
+ env['DEBIAN_FRONTEND'] = 'noninteractive'
+
+ cmd = ['apt-get',
+ '--option=Dpkg::Options::=--force-confold',
+ '--assume-yes',
+ 'install']
+ check_call(cmd + packages, env=env)
+
+
+def init_config_states():
+ import yaml
+ from charmhelpers.core import hookenv
+ from charms.reactive import set_state
+ from charms.reactive import toggle_state
+ config = hookenv.config()
+ config_defaults = {}
+ config_defs = {}
+ config_yaml = os.path.join(hookenv.charm_dir(), 'config.yaml')
+ if os.path.exists(config_yaml):
+ with open(config_yaml) as fp:
+ config_defs = yaml.safe_load(fp).get('options', {})
+ config_defaults = {key: value.get('default')
+ for key, value in config_defs.items()}
+ for opt in config_defs.keys():
+ if config.changed(opt):
+ set_state('config.changed')
+ set_state('config.changed.{}'.format(opt))
+ toggle_state('config.set.{}'.format(opt), config.get(opt))
+ toggle_state('config.default.{}'.format(opt),
+ config.get(opt) == config_defaults[opt])
+ hookenv.atexit(clear_config_states)
+
+
+def clear_config_states():
+ from charmhelpers.core import hookenv, unitdata
+ from charms.reactive import remove_state
+ config = hookenv.config()
+ remove_state('config.changed')
+ for opt in config.keys():
+ remove_state('config.changed.{}'.format(opt))
+ remove_state('config.set.{}'.format(opt))
+ remove_state('config.default.{}'.format(opt))
+ unitdata.kv().flush()
diff --git a/builds/vpe-router/deps/layer/layer-basic/lib/charms/layer/execd.py b/builds/vpe-router/deps/layer/layer-basic/lib/charms/layer/execd.py
new file mode 100644
index 0000000..30574190
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/lib/charms/layer/execd.py
@@ -0,0 +1,138 @@
+# Copyright 2014-2016 Canonical Limited.
+#
+# This file is part of layer-basic, the reactive base layer for Juju.
+#
+# charm-helpers is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License version 3 as
+# published by the Free Software Foundation.
+#
+# charm-helpers is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>.
+
+# This module may only import from the Python standard library.
+import os
+import sys
+import subprocess
+import time
+
+'''
+execd/preinstall
+
+It is often necessary to configure and reconfigure machines
+after provisioning, but before attempting to run the charm.
+Common examples are specialized network configuration, enabling
+of custom hardware, non-standard disk partitioning and filesystems,
+adding secrets and keys required for using a secured network.
+
+The reactive framework's base layer invokes this mechanism as
+early as possible, before any network access is made or dependencies
+unpacked or non-standard modules imported (including the charms.reactive
+framework itself).
+
+Operators needing to use this functionality may branch a charm and
+create an exec.d directory in it. The exec.d directory in turn contains
+one or more subdirectories, each of which contains an executable called
+charm-pre-install and any other required resources. The charm-pre-install
+executables are run, and if successful, state saved so they will not be
+run again.
+
+ $CHARM_DIR/exec.d/mynamespace/charm-pre-install
+
+An alternative to branching a charm is to compose a new charm that contains
+the exec.d directory, using the original charm as a layer,
+
+A charm author could also abuse this mechanism to modify the charm
+environment in unusual ways, but for most purposes it is saner to use
+charmhelpers.core.hookenv.atstart().
+'''
+
+
+def default_execd_dir():
+ return os.path.join(os.environ['CHARM_DIR'], 'exec.d')
+
+
+def execd_module_paths(execd_dir=None):
+ """Generate a list of full paths to modules within execd_dir."""
+ if not execd_dir:
+ execd_dir = default_execd_dir()
+
+ if not os.path.exists(execd_dir):
+ return
+
+ for subpath in os.listdir(execd_dir):
+ module = os.path.join(execd_dir, subpath)
+ if os.path.isdir(module):
+ yield module
+
+
+def execd_submodule_paths(command, execd_dir=None):
+ """Generate a list of full paths to the specified command within exec_dir.
+ """
+ for module_path in execd_module_paths(execd_dir):
+ path = os.path.join(module_path, command)
+ if os.access(path, os.X_OK) and os.path.isfile(path):
+ yield path
+
+
+def execd_sentinel_path(submodule_path):
+ module_path = os.path.dirname(submodule_path)
+ execd_path = os.path.dirname(module_path)
+ module_name = os.path.basename(module_path)
+ submodule_name = os.path.basename(submodule_path)
+ return os.path.join(execd_path,
+ '.{}_{}.done'.format(module_name, submodule_name))
+
+
+def execd_run(command, execd_dir=None, stop_on_error=True, stderr=None):
+ """Run command for each module within execd_dir which defines it."""
+ if stderr is None:
+ stderr = sys.stdout
+ for submodule_path in execd_submodule_paths(command, execd_dir):
+ # Only run each execd once. We cannot simply run them in the
+ # install hook, as potentially storage hooks are run before that.
+ # We cannot rely on them being idempotent.
+ sentinel = execd_sentinel_path(submodule_path)
+ if os.path.exists(sentinel):
+ continue
+
+ try:
+ subprocess.check_call([submodule_path], stderr=stderr,
+ universal_newlines=True)
+ with open(sentinel, 'w') as f:
+ f.write('{} ran successfully {}\n'.format(submodule_path,
+ time.ctime()))
+ f.write('Removing this file will cause it to be run again\n')
+ except subprocess.CalledProcessError as e:
+ # Logs get the details. We can't use juju-log, as the
+ # output may be substantial and exceed command line
+ # length limits.
+ print("ERROR ({}) running {}".format(e.returncode, e.cmd),
+ file=stderr)
+ print("STDOUT<<EOM", file=stderr)
+ print(e.output, file=stderr)
+ print("EOM", file=stderr)
+
+ # Unit workload status gets a shorter fail message.
+ short_path = os.path.relpath(submodule_path)
+ block_msg = "Error ({}) running {}".format(e.returncode,
+ short_path)
+ try:
+ subprocess.check_call(['status-set', 'blocked', block_msg],
+ universal_newlines=True)
+ if stop_on_error:
+ sys.exit(0) # Leave unit in blocked state.
+ except Exception:
+ pass # We care about the exec.d/* failure, not status-set.
+
+ if stop_on_error:
+ sys.exit(e.returncode or 1) # Error state for pre-1.24 Juju
+
+
+def execd_preinstall(execd_dir=None):
+ """Run charm-pre-install for each module within execd_dir."""
+ execd_run('charm-pre-install', execd_dir=execd_dir)
diff --git a/builds/vpe-router/deps/layer/layer-basic/metadata.yaml b/builds/vpe-router/deps/layer/layer-basic/metadata.yaml
new file mode 100644
index 0000000..0967ef4
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/metadata.yaml
@@ -0,0 +1 @@
+{}
diff --git a/builds/vpe-router/deps/layer/layer-basic/reactive/__init__.py b/builds/vpe-router/deps/layer/layer-basic/reactive/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/reactive/__init__.py
diff --git a/builds/vpe-router/deps/layer/layer-basic/requirements.txt b/builds/vpe-router/deps/layer/layer-basic/requirements.txt
new file mode 100644
index 0000000..28ecaca
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/requirements.txt
@@ -0,0 +1,2 @@
+flake8
+pytest
diff --git a/builds/vpe-router/deps/layer/layer-basic/tox.ini b/builds/vpe-router/deps/layer/layer-basic/tox.ini
new file mode 100644
index 0000000..0b8b27a
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/tox.ini
@@ -0,0 +1,12 @@
+[tox]
+skipsdist=True
+envlist = py34, py35
+skip_missing_interpreters = True
+
+[testenv]
+commands = py.test -v
+deps =
+ -r{toxinidir}/requirements.txt
+
+[flake8]
+exclude=docs
diff --git a/builds/vpe-router/deps/layer/layer-basic/wheelhouse.txt b/builds/vpe-router/deps/layer/layer-basic/wheelhouse.txt
new file mode 100644
index 0000000..4c6fefd
--- /dev/null
+++ b/builds/vpe-router/deps/layer/layer-basic/wheelhouse.txt
@@ -0,0 +1,3 @@
+pip>=7.0.0,<8.2.0
+charmhelpers>=0.4.0,<1.0.0
+charms.reactive>=0.1.0,<2.0.0