Add charm code

.gitignore

@@ -0,0 +1,5 @@
+.tox
+.stestr
+*__pycache__*
+*.pyc
+build

.stestr.conf

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+[DEFAULT]
+test_path=./unit_tests
+top_dir=./

README.md

@@ -1,2 +0,0 @@
-# charm-manila-dashboard
-Juju charm for the Manila dashboard plugin

README.md

@@ -0,0 +1 @@
+src/README.md

requirements.txt

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+# This file is managed centrally by release-tools and should not be modified
+# within individual charm repos.  See the 'global' dir contents for available
+# choices of *requirements.txt files for OpenStack Charms:
+#     https://github.com/openstack-charmers/release-tools
+#
+# NOTE(lourot): This might look like a duplication of test-requirements.txt but
+# some tox targets use only test-requirements.txt whereas charm-build uses only
+# requirements.txt
+setuptools<50.0.0  # https://github.com/pypa/setuptools/commit/04e3df22df840c6bb244e9b27bc56750c44b7c85
+
+# Build requirements
+charm-tools>=2.4.4
+
+# Workaround until https://github.com/juju/charm-tools/pull/589 gets
+# published
+keyring<21
+
+simplejson
+
+# Newer versions use keywords that didn't exist in python 3.5 yet (e.g.
+# "ModuleNotFoundError")
+# NOTE(lourot): This might look like a duplication of test-requirements.txt but
+# some tox targets use only test-requirements.txt whereas charm-build uses only
+# requirements.txt
+importlib-metadata<3.0.0; python_version < '3.6'
+importlib-resources<3.0.0; python_version < '3.6'

src/README.md

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+# Overview
+
+This subordinate charm provides the Manila Dashboard plugin for use with the OpenStack Dashboard.
+
+# Usage
+
+Example minimal deploy:
+
+    juju deploy cs:openstack-dashboard --config openstack-origin=cloud:bionic-train
+    juju deploy cs:manila-dashboard
+    juju add-relation openstack-dashboard:dashboard-plugin manila-dashboard:dashboard
+
+# Bugs
+
+Please report bugs on [Launchpad](https://bugs.launchpad.net/charm-manila-dashboard/+filebug).
+
+For general questions please refer to the OpenStack [Charm Guide](https://docs.openstack.org/charm-guide/latest/).

src/layer.yaml

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+includes:
+  - layer:openstack
+  - interface:dashboard-plugin
+options:
+  basic:
+    use_venv: True
+    include_system_packages: False
+repo: https://github.com/openstack/charm-manila-dashboard
+config:
+  deletes:
+    - debug
+    - verbose
+    - use-internal-endpoints
+    - use-syslog
+    - ssl_ca
+    - ssl_cert
+    - ssl_key

src/lib/charm/openstack/manila_dashboard.py

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+# Copyright 2021 Canonical Ltd
+#
+# 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.
+
+import charms_openstack.adapters
+import charms_openstack.charm
+
+
+class ManilaDashboardCharm(charms_openstack.charm.OpenStackCharm):
+    release = 'stein'
+    name = 'manila-dashboard'
+    packages = ['python3-manila-ui']
+    python_version = 3
+    adapters_class = charms_openstack.adapters.OpenStackRelationAdapters
+    required_relations = ['dashboard']

src/metadata.yaml

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+name: manila-dashboard
+summary: Openstack Manila Dashboard
+maintainer: OpenStack Charmers <openstack-charmers@lists.ubuntu.com>
+description: |
+  This is the dashboard plugin for the OpenStack shared file system
+  service, Manila.
+tags:
+- openstack
+series:
+- bionic
+- focal
+- groovy
+subordinate: true
+requires:
+  dashboard:
+    interface: dashboard-plugin
+    scope: container

src/reactive/manila_dashboard_handlers.py

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+# Copyright 2021 Canonical Ltd
+#
+# 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.
+
+import charms.reactive as reactive
+
+import charms_openstack.bus
+import charms_openstack.charm as charm
+
+charms_openstack.bus.discover()
+
+# Use the charms.openstack defaults for common states and hooks
+charm.use_defaults(
+    'charm.installed',
+    'config.changed',
+    'update-status',
+    'upgrade-charm')
+
+
+@reactive.when('dashboard.available')
+def dashboard_available():
+    """Relation to OpenStack Dashboard principal charm complete.
+    """
+    with charm.provide_charm_instance() as manila_dashboard_charm:
+        dashboard_relation = reactive.endpoint_from_flag('dashboard.available')
+        dashboard_relation.publish_plugin_info(
+            "", None,
+            conflicting_packages=manila_dashboard_charm.purge_packages,
+            install_packages=manila_dashboard_charm.packages)
+        manila_dashboard_charm.assess_status()

src/test-requirements.txt

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+# This file is managed centrally by release-tools and should not be modified
+# within individual charm repos.  See the 'global' dir contents for available
+# choices of *requirements.txt files for OpenStack Charms:
+#     https://github.com/openstack-charmers/release-tools
+#
+# pep8 requirements
+charm-tools>=2.4.4
+
+# Workaround until https://github.com/juju/charm-tools/pull/589 gets
+# published
+keyring<21
+
+# Functional Test Requirements (let Zaza's dependencies solve all dependencies here!)
+git+https://github.com/openstack-charmers/zaza.git#egg=zaza
+git+https://github.com/openstack-charmers/zaza-openstack-tests.git#egg=zaza.openstack

src/tests/bundles/bionic-train.yaml

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+variables:
+  openstack-origin: &openstack-origin cloud:bionic-train
+
+series: bionic
+
+comment:
+- 'machines section to decide order of deployment. database sooner = faster'
+machines:
+  '0':
+    constraints: mem=3072M
+  '1':
+  '2':
+  '3':
+  '4':
+
+applications:
+
+  percona-cluster:
+    charm: cs:~openstack-charmers-next/percona-cluster
+    num_units: 1
+    options:
+      source: *openstack-origin
+      max-connections: 1000
+      innodb-buffer-pool-size: 256M
+    to:
+      - '0'
+
+  rabbitmq-server:
+    charm: cs:~openstack-charmers-next/rabbitmq-server
+    num_units: 1
+    to:
+      - '1'
+
+  keystone:
+    charm: cs:~openstack-charmers-next/keystone
+    num_units: 1
+    options:
+      openstack-origin: *openstack-origin
+    to:
+      - '2'
+
+  manila:
+    charm: cs:~openstack-charmers-next/manila
+    num_units: 1
+    options:
+      openstack-origin: *openstack-origin
+    to:
+      - '3'
+
+  openstack-dashboard:
+    charm: cs:~openstack-charmers-next/openstack-dashboard
+    num_units: 1
+    options:
+      openstack-origin: *openstack-origin
+    to:
+      - '4'
+
+  manila-dashboard:
+    charm: ../../../manila-dashboard
+
+relations:
+
+  - - 'keystone:shared-db'
+    - 'percona-cluster:shared-db'
+
+  - - 'manila:shared-db'
+    - 'percona-cluster:shared-db'
+
+  - - 'manila:amqp'
+    - 'rabbitmq-server:amqp'
+
+  - - 'manila:identity-service'
+    - 'keystone:identity-service'
+
+  - - 'openstack-dashboard:shared-db'
+    - 'percona-cluster:shared-db'
+
+  - - 'openstack-dashboard:identity-service'
+    - 'keystone:identity-service'
+
+  - - 'openstack-dashboard:dashboard-plugin'
+    - 'manila-dashboard:dashboard'

src/tests/bundles/bionic-ussuri.yaml

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+variables:
+  openstack-origin: &openstack-origin cloud:bionic-ussuri
+
+series: bionic
+
+comment:
+- 'machines section to decide order of deployment. database sooner = faster'
+machines:
+  '0':
+    constraints: mem=3072M
+  '1':
+  '2':
+  '3':
+  '4':
+
+applications:
+
+  percona-cluster:
+    charm: cs:~openstack-charmers-next/percona-cluster
+    num_units: 1
+    options:
+      source: *openstack-origin
+      max-connections: 1000
+      innodb-buffer-pool-size: 256M
+    to:
+      - '0'
+
+  rabbitmq-server:
+    charm: cs:~openstack-charmers-next/rabbitmq-server
+    num_units: 1
+    to:
+      - '1'
+
+  keystone:
+    charm: cs:~openstack-charmers-next/keystone
+    num_units: 1
+    options:
+      openstack-origin: *openstack-origin
+    to:
+      - '2'
+
+  manila:
+    charm: cs:~openstack-charmers-next/manila
+    num_units: 1
+    options:
+      openstack-origin: *openstack-origin
+    to:
+      - '3'
+
+  openstack-dashboard:
+    charm: cs:~openstack-charmers-next/openstack-dashboard
+    num_units: 1
+    options:
+      openstack-origin: *openstack-origin
+    to:
+      - '4'
+
+  manila-dashboard:
+    charm: ../../../manila-dashboard
+
+relations:
+
+  - - 'keystone:shared-db'
+    - 'percona-cluster:shared-db'
+
+  - - 'manila:shared-db'
+    - 'percona-cluster:shared-db'
+
+  - - 'manila:amqp'
+    - 'rabbitmq-server:amqp'
+
+  - - 'manila:identity-service'
+    - 'keystone:identity-service'
+
+  - - 'openstack-dashboard:shared-db'
+    - 'percona-cluster:shared-db'
+
+  - - 'openstack-dashboard:identity-service'
+    - 'keystone:identity-service'
+
+  - - 'openstack-dashboard:dashboard-plugin'
+    - 'manila-dashboard:dashboard'

src/tests/bundles/focal-ussuri.yaml

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+variables:
+  openstack-origin: &openstack-origin distro
+
+series: focal
+
+comment:
+- 'machines section to decide order of deployment. database sooner = faster'
+machines:
+  '0':
+    constraints: mem=3072M
+  '1':
+    constraints: mem=3072M
+  '2':
+    constraints: mem=3072M
+  '3':
+  '4':
+  '5':
+  '6':
+
+applications:
+  keystone-mysql-router:
+    charm: cs:~openstack-charmers-next/mysql-router
+  manila-mysql-router:
+    charm: cs:~openstack-charmers-next/mysql-router
+  openstack-dashboard-mysql-router:
+    charm: cs:~openstack-charmers-next/mysql-router
+
+  mysql-innodb-cluster:
+    charm: cs:~openstack-charmers-next/mysql-innodb-cluster
+    num_units: 3
+    options:
+      source: *openstack-origin
+    to:
+      - '0'
+      - '1'
+      - '2'
+
+  rabbitmq-server:
+    charm: cs:~openstack-charmers-next/rabbitmq-server
+    num_units: 1
+    to:
+      - '3'
+
+  keystone:
+    charm: cs:~openstack-charmers-next/keystone
+    num_units: 1
+    options:
+      openstack-origin: *openstack-origin
+    to:
+      - '4'
+
+  manila:
+    charm: cs:~openstack-charmers-next/manila
+    num_units: 1
+    options:
+      openstack-origin: *openstack-origin
+    to:
+      - '5'
+
+  openstack-dashboard:
+    charm: cs:~openstack-charmers-next/openstack-dashboard
+    num_units: 1
+    options:
+      openstack-origin: *openstack-origin
+    to:
+      - '6'
+
+  manila-dashboard:
+    charm: ../../../manila-dashboard
+
+relations:
+
+  - - 'keystone:shared-db'
+    - 'keystone-mysql-router:shared-db'
+  - - 'keystone-mysql-router:db-router'
+    - 'mysql-innodb-cluster:db-router'
+
+  - - 'manila:shared-db'
+    - 'manila-mysql-router:shared-db'
+  - - 'manila-mysql-router:db-router'
+    - 'mysql-innodb-cluster:db-router'
+
+  - - 'manila:amqp'
+    - 'rabbitmq-server:amqp'
+
+  - - 'manila:identity-service'
+    - 'keystone:identity-service'
+
+  - - 'openstack-dashboard:shared-db'
+    - 'openstack-dashboard-mysql-router:shared-db'
+  - - 'openstack-dashboard-mysql-router:db-router'
+    - 'mysql-innodb-cluster:db-router'
+
+  - - 'openstack-dashboard:identity-service'
+    - 'keystone:identity-service'
+
+  - - 'openstack-dashboard:dashboard-plugin'
+    - 'manila-dashboard:dashboard'

src/tests/bundles/focal-victoria.yaml

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+variables:
+  openstack-origin: &openstack-origin cloud:focal-victoria
+
+series: focal
+
+comment:
+- 'machines section to decide order of deployment. database sooner = faster'
+machines:
+  '0':
+    constraints: mem=3072M
+  '1':
+    constraints: mem=3072M
+  '2':
+    constraints: mem=3072M
+  '3':
+  '4':
+  '5':
+  '6':
+
+applications:
+  keystone-mysql-router:
+    charm: cs:~openstack-charmers-next/mysql-router
+  manila-mysql-router:
+    charm: cs:~openstack-charmers-next/mysql-router
+  openstack-dashboard-mysql-router:
+    charm: cs:~openstack-charmers-next/mysql-router
+
+  mysql-innodb-cluster:
+    charm: cs:~openstack-charmers-next/mysql-innodb-cluster
+    num_units: 3
+    options:
+      source: *openstack-origin
+    to:
+      - '0'
+      - '1'
+      - '2'
+
+  rabbitmq-server:
+    charm: cs:~openstack-charmers-next/rabbitmq-server
+    num_units: 1
+    to:
+      - '3'
+
+  keystone:
+    charm: cs:~openstack-charmers-next/keystone
+    num_units: 1
+    options:
+      openstack-origin: *openstack-origin
+    to:
+      - '4'
+
+  manila:
+    charm: cs:~openstack-charmers-next/manila
+    num_units: 1
+    options:
+      openstack-origin: *openstack-origin
+    to:
+      - '5'
+
+  openstack-dashboard:
+    charm: cs:~openstack-charmers-next/openstack-dashboard
+    num_units: 1
+    options:
+      openstack-origin: *openstack-origin
+    to:
+      - '6'
+
+  manila-dashboard:
+    charm: ../../../manila-dashboard
+
+relations:
+
+  - - 'keystone:shared-db'
+    - 'keystone-mysql-router:shared-db'
+  - - 'keystone-mysql-router:db-router'
+    - 'mysql-innodb-cluster:db-router'
+
+  - - 'manila:shared-db'
+    - 'manila-mysql-router:shared-db'
+  - - 'manila-mysql-router:db-router'
+    - 'mysql-innodb-cluster:db-router'
+
+  - - 'manila:amqp'
+    - 'rabbitmq-server:amqp'
+
+  - - 'manila:identity-service'
+    - 'keystone:identity-service'
+
+  - - 'openstack-dashboard:shared-db'
+    - 'openstack-dashboard-mysql-router:shared-db'
+  - - 'openstack-dashboard-mysql-router:db-router'
+    - 'mysql-innodb-cluster:db-router'
+
+  - - 'openstack-dashboard:identity-service'
+    - 'keystone:identity-service'
+
+  - - 'openstack-dashboard:dashboard-plugin'
+    - 'manila-dashboard:dashboard'

src/tests/bundles/groovy-victoria.yaml

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+variables:
+  openstack-origin: &openstack-origin distro
+
+series: groovy
+
+comment:
+- 'machines section to decide order of deployment. database sooner = faster'
+machines:
+  '0':
+    constraints: mem=3072M
+  '1':
+    constraints: mem=3072M
+  '2':
+    constraints: mem=3072M
+  '3':
+  '4':
+  '5':
+  '6':
+
+applications:
+  keystone-mysql-router:
+    charm: cs:~openstack-charmers-next/mysql-router
+  manila-mysql-router:
+    charm: cs:~openstack-charmers-next/mysql-router
+  openstack-dashboard-mysql-router:
+    charm: cs:~openstack-charmers-next/mysql-router
+
+  mysql-innodb-cluster:
+    charm: cs:~openstack-charmers-next/mysql-innodb-cluster
+    num_units: 3
+    options:
+      source: *openstack-origin
+    to:
+      - '0'
+      - '1'
+      - '2'
+
+  rabbitmq-server:
+    charm: cs:~openstack-charmers-next/rabbitmq-server
+    num_units: 1
+    to:
+      - '3'
+
+  keystone:
+    charm: cs:~openstack-charmers-next/keystone
+    num_units: 1
+    options:
+      openstack-origin: *openstack-origin
+    to:
+      - '4'
+
+  manila:
+    charm: cs:~openstack-charmers-next/manila
+    num_units: 1
+    options:
+      openstack-origin: *openstack-origin
+    to:
+      - '5'
+
+  openstack-dashboard:
+    charm: cs:~openstack-charmers-next/openstack-dashboard
+    num_units: 1
+    options:
+      openstack-origin: *openstack-origin
+    to:
+      - '6'
+
+  manila-dashboard:
+    charm: ../../../manila-dashboard
+
+relations:
+
+  - - 'keystone:shared-db'
+    - 'keystone-mysql-router:shared-db'
+  - - 'keystone-mysql-router:db-router'
+    - 'mysql-innodb-cluster:db-router'
+
+  - - 'manila:shared-db'
+    - 'manila-mysql-router:shared-db'
+  - - 'manila-mysql-router:db-router'
+    - 'mysql-innodb-cluster:db-router'
+
+  - - 'manila:amqp'
+    - 'rabbitmq-server:amqp'
+
+  - - 'manila:identity-service'
+    - 'keystone:identity-service'
+
+  - - 'openstack-dashboard:shared-db'
+    - 'openstack-dashboard-mysql-router:shared-db'
+  - - 'openstack-dashboard-mysql-router:db-router'
+    - 'mysql-innodb-cluster:db-router'
+
+  - - 'openstack-dashboard:identity-service'
+    - 'keystone:identity-service'
+
+  - - 'openstack-dashboard:dashboard-plugin'
+    - 'manila-dashboard:dashboard'

src/tests/tests.yaml

@@ -0,0 +1,26 @@
+charm_name: manila-dashboard
+
+smoke_bundles:
+- bionic-ussuri
+
+gate_bundles:
+- bionic-train
+- bionic-ussuri
+- focal-ussuri
+- focal-victoria
+- groovy-victoria
+
+target_deploy_status:
+  manila:
+    workload-status: blocked
+    workload-status-message: No share backends configured
+
+configure:
+- zaza.charm_tests.noop.setup.basic_setup
+
+tests:
+- zaza.charm_tests.noop.tests.NoopTest
+
+tests_options:
+  force_deploy:
+    - groovy-victoria

src/tox.ini

@@ -0,0 +1,61 @@
+# Source charm (with zaza): ./src/tox.ini
+# This file is managed centrally by release-tools and should not be modified
+# within individual charm repos.  See the 'global' dir contents for available
+# choices of tox.ini for OpenStack Charms:
+#     https://github.com/openstack-charmers/release-tools
+
+[tox]
+envlist = pep8
+skipsdist = True
+# NOTE: Avoid build/test env pollution by not enabling sitepackages.
+sitepackages = False
+# NOTE: Avoid false positives by not skipping missing interpreters.
+skip_missing_interpreters = False
+# NOTES:
+# * We avoid the new dependency resolver by pinning pip < 20.3, see
+#   https://github.com/pypa/pip/issues/9187
+# * Pinning dependencies requires tox >= 3.2.0, see
+#   https://tox.readthedocs.io/en/latest/config.html#conf-requires
+# * It is also necessary to pin virtualenv as a newer virtualenv would still
+#   lead to fetching the latest pip in the func* tox targets, see
+#   https://stackoverflow.com/a/38133283
+requires = pip < 20.3
+           virtualenv < 20.0
+# NOTE: https://wiki.canonical.com/engineering/OpenStack/InstallLatestToxOnOsci
+minversion = 3.2.0
+
+[testenv]
+setenv = VIRTUAL_ENV={envdir}
+         PYTHONHASHSEED=0
+whitelist_externals = juju
+passenv = HOME TERM CS_* OS_* TEST_*
+deps = -r{toxinidir}/test-requirements.txt
+install_command =
+  pip install {opts} {packages}
+
+[testenv:pep8]
+basepython = python3
+commands = charm-proof
+
+[testenv:func-noop]
+basepython = python3
+commands =
+    functest-run-suite --help
+
+[testenv:func]
+basepython = python3
+commands =
+    functest-run-suite --keep-model
+
+[testenv:func-smoke]
+basepython = python3
+commands =
+    functest-run-suite --keep-model --smoke
+
+[testenv:func-target]
+basepython = python3
+commands =
+    functest-run-suite --keep-model --bundle {posargs}
+
+[testenv:venv]
+commands = {posargs}

src/wheelhouse.txt

@@ -0,0 +1,3 @@
+git+https://opendev.org/openstack/charms.openstack.git#egg=charms.openstack
+
+git+https://github.com/juju/charm-helpers.git#egg=charmhelpers

test-requirements.txt

@@ -0,0 +1,47 @@
+# This file is managed centrally by release-tools and should not be modified
+# within individual charm repos.  See the 'global' dir contents for available
+# choices of *requirements.txt files for OpenStack Charms:
+#     https://github.com/openstack-charmers/release-tools
+#
+setuptools<50.0.0  # https://github.com/pypa/setuptools/commit/04e3df22df840c6bb244e9b27bc56750c44b7c85
+# Lint and unit test requirements
+flake8>=2.2.4
+
+stestr>=2.2.0
+
+# Dependency of stestr. Workaround for
+# https://github.com/mtreinish/stestr/issues/145
+cliff<3.0.0
+
+# Dependencies of stestr. Newer versions use keywords that didn't exist in
+# python 3.5 yet (e.g. "ModuleNotFoundError")
+importlib-metadata<3.0.0; python_version < '3.6'
+importlib-resources<3.0.0; python_version < '3.6'
+
+# Some Zuul nodes sometimes pull newer versions of these dependencies which
+# dropped support for python 3.5:
+osprofiler<2.7.0;python_version<'3.6'
+stevedore<1.31.0;python_version<'3.6'
+debtcollector<1.22.0;python_version<'3.6'
+oslo.utils<=3.41.0;python_version<'3.6'
+
+requests>=2.18.4
+charms.reactive
+
+# Newer mock seems to have some syntax which is newer than python3.5 (e.g.
+# f'{something}'
+mock>=1.2,<4.0.0; python_version < '3.6'
+mock>=1.2; python_version >= '3.6'
+
+nose>=1.3.7
+coverage>=3.6
+git+https://github.com/openstack/charms.openstack.git#egg=charms.openstack
+#
+# Revisit for removal / mock improvement:
+netifaces        # vault
+psycopg2-binary  # vault
+tenacity         # vault
+pbr              # vault
+cryptography     # vault, keystone-saml-mellon
+lxml             # keystone-saml-mellon
+hvac             # vault, barbican-vault

tox.ini

@@ -0,0 +1,97 @@
+# Source charm: ./tox.ini
+# This file is managed centrally by release-tools and should not be modified
+# within individual charm repos.  See the 'global' dir contents for available
+# choices of tox.ini for OpenStack Charms:
+#     https://github.com/openstack-charmers/release-tools
+
+[tox]
+skipsdist = True
+envlist = pep8,py3
+# NOTE: Avoid build/test env pollution by not enabling sitepackages.
+sitepackages = False
+# NOTE: Avoid false positives by not skipping missing interpreters.
+skip_missing_interpreters = False
+
+[testenv]
+setenv = VIRTUAL_ENV={envdir}
+         PYTHONHASHSEED=0
+         TERM=linux
+         LAYER_PATH={toxinidir}/layers
+         INTERFACE_PATH={toxinidir}/interfaces
+         JUJU_REPOSITORY={toxinidir}/build
+passenv = http_proxy https_proxy INTERFACE_PATH LAYER_PATH JUJU_REPOSITORY
+install_command =
+  pip install {opts} {packages}
+deps =
+    -r{toxinidir}/requirements.txt
+
+[testenv:build]
+basepython = python3
+commands =
+    charm-build --log-level DEBUG -o {toxinidir}/build src {posargs}
+
+[testenv:py3]
+basepython = python3
+deps = -r{toxinidir}/test-requirements.txt
+commands = stestr run --slowest {posargs}
+
+[testenv:py35]
+basepython = python3.5
+deps = -r{toxinidir}/test-requirements.txt
+commands = stestr run --slowest {posargs}
+
+[testenv:py36]
+basepython = python3.6
+deps = -r{toxinidir}/test-requirements.txt
+commands = stestr run --slowest {posargs}
+
+[testenv:py37]
+basepython = python3.7
+deps = -r{toxinidir}/test-requirements.txt
+commands = stestr run --slowest {posargs}
+
+[testenv:py38]
+basepython = python3.8
+deps = -r{toxinidir}/test-requirements.txt
+commands = stestr run --slowest {posargs}
+
+[testenv:pep8]
+basepython = python3
+deps = -r{toxinidir}/test-requirements.txt
+commands = flake8 {posargs} src unit_tests
+
+[testenv:cover]
+# Technique based heavily upon
+# https://github.com/openstack/nova/blob/master/tox.ini
+basepython = python3
+deps = -r{toxinidir}/requirements.txt
+       -r{toxinidir}/test-requirements.txt
+setenv =
+    {[testenv]setenv}
+    PYTHON=coverage run
+commands =
+    coverage erase
+    stestr run --slowest {posargs}
+    coverage combine
+    coverage html -d cover
+    coverage xml -o cover/coverage.xml
+    coverage report
+
+[coverage:run]
+branch = True
+concurrency = multiprocessing
+parallel = True
+source =
+    .
+omit =
+    .tox/*
+    */charmhelpers/*
+    unit_tests/*
+
+[testenv:venv]
+basepython = python3
+commands = {posargs}
+
+[flake8]
+# E402 ignore necessary for path append before sys module import in actions
+ignore = E402,W503,W504

unit_tests/__init__.py

@@ -0,0 +1,22 @@
+# Copyright 2021 Canonical Ltd
+#
+# 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.
+
+import sys
+
+sys.path.append('src')
+sys.path.append('src/lib')
+
+# Mock out charmhelpers so that we can test without it.
+import charms_openstack.test_mocks  # noqa
+charms_openstack.test_mocks.mock_charmhelpers()

unit_tests/test_manila_dashboard_handlers.py

@@ -0,0 +1,62 @@
+# Copyright 2021 Canonical Ltd
+#
+# 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.
+
+import mock
+
+import reactive.manila_dashboard_handlers as handlers
+
+import charms_openstack.test_utils as test_utils
+
+
+class TestRegisteredHooks(test_utils.TestRegisteredHooks):
+
+    def test_hooks(self):
+        defaults = [
+            'charm.installed',
+            'config.changed',
+            'update-status',
+            'upgrade-charm']
+        hook_set = {
+            'when': {
+                'dashboard_available': (
+                    'dashboard.available',),
+            },
+        }
+        # test that the hooks were registered via the
+        # reactive.barbican_handlers
+        self.registered_hooks_test_helper(handlers, hook_set, defaults)
+
+
+class TestManilaDashboardHandlers(test_utils.PatchHelper):
+
+    def setUp(self):
+        super().setUp()
+        self.manila_dashboard_charm = mock.MagicMock()
+        self.patch_object(handlers.charm, 'provide_charm_instance',
+                          new=mock.MagicMock())
+        self.provide_charm_instance().__enter__.return_value = \
+            self.manila_dashboard_charm
+        self.provide_charm_instance().__exit__.return_value = None
+        self.patch('charms.reactive.endpoint_from_flag')
+
+    def test_dashboard_available(self):
+        mock_flag = mock.Mock()
+        self.endpoint_from_flag.return_value = mock_flag
+        self.manila_dashboard_charm.purge_packages = ['n1']
+        self.manila_dashboard_charm.packages = ['p1', 'p2']
+        handlers.dashboard_available()
+        mock_flag.publish_plugin_info.assert_called_once_with(
+            "", None, conflicting_packages=['n1'],
+            install_packages=['p1', 'p2'])
+        self.manila_dashboard_charm.assess_status.assert_called_once_with()