Initial import

.gitignore

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+.tox

copyright

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+Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0
+
+Files: *
+Copyright: 2019, Canonical Ltd.
+License: Apache-2.0
+
+License: Apache-2.0
+ 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.
+ .
+ On Debian-based systems the full text of the Apache version 2.0 license
+ can be found in `/usr/share/common-licenses/Apache-2.0'.

interface.yaml

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+name: keystone-notifications
+summary: |
+  Interface for integrating with Keystone notifications interface
+  Charms use this relation to know when an endpoint changed.
+
+maintainer: Felipe Reyes <felipe.reyes@canonical.com>

requires.py

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+#!/usr/bin/python
+# 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.
+
+from charmhelpers.core import hookenv
+from charms.reactive import RelationBase
+from charms.reactive import hook
+from charms.reactive import scopes
+
+
+class KeystoneNotifications(RelationBase):
+    scope = scopes.GLOBAL
+
+    @hook('{requires:keystone-notifications}-relation-joined')
+    def joined(self):
+        self.set_state('{relation_name}.connected')
+
+    @hook('{requires:keystone-notifications}-relation-changed')
+    def changed(self):
+        self.set_state('{relation_name}.available.updated')
+        hookenv.atexit(self._clear_updated)
+
+    @hook('{requires:keystone-notifications}-relation-{broken,departed}')
+    def departed(self):
+        self.remove_state('{relation_name}.connected')
+
+    def _clear_updated(self):
+        self.remove_state('{relation_name}.available.updated')

test-requirements.txt

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+flake8>=2.2.4,<=2.4.1
+os-testr>=0.4.1

tox.ini

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+[tox]
+envlist = pep8,py27,py34,py35
+skipsdist = True
+# NOTE(beisner): Avoid build/test env pollution by not enabling sitepackages.
+sitepackages = False
+# NOTE(beisner): Avoid false positives by not skipping missing interpreters.
+skip_missing_interpreters = False
+
+[testenv]
+setenv = VIRTUAL_ENV={envdir}
+         PYTHONHASHSEED=0
+install_command =
+  pip install {opts} {packages}
+commands = ostestr {posargs}
+
+[testenv:py27]
+basepython = python2.7
+deps = -r{toxinidir}/test-requirements.txt
+# TODO: Need to write unit tests then remove the following command.
+commands = /bin/true
+
+[testenv:py34]
+basepython = python3.4
+deps = -r{toxinidir}/test-requirements.txt
+# TODO: Need to write unit tests then remove the following command.
+commands = /bin/true
+
+[testenv:py35]
+basepython = python3.5
+deps = -r{toxinidir}/test-requirements.txt
+# TODO: Need to write unit tests then remove the following command.
+commands = /bin/true
+
+[testenv:pep8]
+basepython = python3
+deps = -r{toxinidir}/test-requirements.txt
+commands = flake8 {posargs}
+
+[testenv:venv]
+basepython = python3
+commands = {posargs}
+
+[flake8]
+ignore = E402,E226