Allign project layout with OS reactive charms

.stestr.conf

@@ -0,0 +1,4 @@
+[DEFAULT]
+test_path=./unit_tests
+top_dir=./
+

.zuul.yaml

@@ -0,0 +1,4 @@
+- project:
+    templates:
+      - openstack-python3-charm-jobs
+      - openstack-cover-jobs

LICENSE

@@ -0,0 +1,202 @@
+
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rebuild

@@ -0,0 +1,5 @@
+# This file is used to trigger rebuilds
+# when dependencies of the charm change,
+# but nothing in the charm needs to.
+# simply change the uuid to something new
+0f7f02ff-1295-4635-9ea5-9453c45b6c9e

requirements.txt

@@ -0,0 +1,11 @@
+# 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
+# Build requirements
+charm-tools>=2.4.4
+# importlib-resources 1.1.0 removed Python 3.5 support
+importlib-resources<1.1.0
+simplejson

src/README.md

@@ -0,0 +1 @@
+# Overview

src/config.yaml

@@ -0,0 +1,21 @@
+options:
+  openstack-origin:
+    default: distro
+    type: string
+    description: |
+      Repository from which to install. May be one of the following:
+      distro (default), ppa:somecustom/ppa, a deb url sources entry,
+      or a supported Ubuntu Cloud Archive e.g.
+      .
+      cloud:<series>-<openstack-release>
+      cloud:<series>-<openstack-release>/updates
+      cloud:<series>-<openstack-release>/staging
+      cloud:<series>-<openstack-release>/proposed
+      .
+      See https://wiki.ubuntu.com/OpenStack/CloudArchive for info on which
+      cloud archives are available and supported.
+  region:
+    default: RegionOne
+    type: string
+    description: |
+      Name of the OpenStack region.

src/layer.yaml

@@ -0,0 +1,7 @@
+includes:
+- 'layer:openstack'
+- 'interface:neutron-plugin-api-subordinate'
+- 'interface:keystone-credentials'
+options:
+  basic:
+    use_venv: False

src/lib/charm/openstack/neutron_ironic.py

@@ -0,0 +1,36 @@
+from charmhelpers.core.hookenv import (
+    config,
+    log
+)
+import charms_openstack.charm as charm
+
+IRONIC_AGENT_CONF = "/etc/neutron/plugins/ml2/ironic_neutron_agent.ini"
+
+
+def request_endpoint_information(keystone):
+    charm = NeutronIronicAgentCharm.singleton
+    keystone.request_credentials(
+        charm.name, region=charm.region)
+
+
+class NeutronIronicAgentCharm(charm.OpenStackCharm):
+    abstract_class = False
+
+    release = 'train'
+    name = 'ironic'
+    group = 'neutron'
+    
+    python_version = 3
+    packages = ['ironic-neutron-agent', 'python3-ironic-neutron-agent']
+    default_service = 'ironic-neutron-agent'
+    services = [default_service,]
+
+    restart_map = {
+        IRONIC_AGENT_CONF: [default_service, ],
+    }
+
+    release_pkg = version_package = 'neutron-common'
+
+    def install(self):
+        self.configure_source()
+        super().install()

src/metadata.yaml

@@ -0,0 +1,22 @@
+name: neutron-api-plugin-ironic
+summary: Ironic bare metal ML2 plugin support for Neutron-API
+maintainer: Gabriel-Adrian Samfira <gsamfira@cloudbasesolutions.com>
+description: |
+  Ironic baremetal mechanism driver and ironic neutron agent support
+tags:
+  - misc
+  - networking
+subordinate: true
+series:
+  - bionic
+  - focal
+provides:
+  neutron-plugin-api-subordinate:
+    interface: neutron-plugin-api-subordinate
+    scope: container
+requires:
+  container:
+    interface: juju-info
+    scope: container
+  identity-credentials:
+    interface: keystone-credentials

src/reactive/neutron_ironic_handlers.py

@@ -0,0 +1,68 @@
+import charms.reactive as reactive
+import charm.openstack.neutron_ironic as ironic
+
+import json
+
+from charmhelpers.core.hookenv import (
+    config,
+    log,
+)
+
+from charms_openstack.charm import (
+    provide_charm_instance,
+    use_defaults,
+    optional_interfaces,
+)
+
+
+use_defaults(
+    'charm.default-select-release',
+    'update-status',
+)
+
+@reactive.when('identity-credentials.available')
+def render_stuff(*args):
+    with provide_charm_instance() as ironic_charm:
+        ironic_charm.render_with_interfaces(
+            optional_interfaces(args))
+        ironic_charm.assess_status()
+    reactive.set_state('config.complete')
+
+
+@reactive.when('identity-credentials.connected')
+def setup_endpoint(keystone):
+    with provide_charm_instance() as charm_class:
+        ironic.request_endpoint_information(keystone)
+        charm_class.assess_status()
+    
+
+@reactive.when_not('ironic-agent-package.installed')
+@reactive.when('neutron-plugin-api-subordinate.available')
+def install_ironic():
+    with provide_charm_instance() as charm_class:
+        charm_class.install()
+    reactive.set_state('ironic-agent-package.installed')
+
+
+@reactive.when_any('neutron-plugin-api-subordinate.connected')
+def configure_principal():
+    try:
+        api_principal = reactive.endpoint_from_flag(
+            'neutron-plugin-api-subordinate.connected')
+
+        mech_drivers = []
+        existing_mech_drivers = api_principal.neutron_config_data.get(
+            'mechanism_drivers', None)
+        if existing_mech_drivers:
+            mech_drivers.extend(existing_mech_drivers.split(','))
+
+        mech_drivers.append("baremetal")
+        mechanism_drivers = ','.join(mech_drivers)
+    except AttributeError:
+        log("The principal charm isn't ready yet. "
+            "Postponing its configuration...")
+        return
+
+    api_principal.configure_plugin(
+        neutron_plugin='ironic',
+        mechanism_drivers=mechanism_drivers)

src/templates/etc_neutron_plugins_ml2_ironic_neutron_agent.ini

@@ -0,0 +1,34 @@
+{% if identity_credentials.auth_host -%}
+{% if identity_credentials.api_version and identity_credentials.api_version == "3" -%}
+{% set auth_ver = "v3" -%}
+{% else -%}
+{% set auth_ver = "v2.0" -%}
+{% endif -%}
+
+[ironic]
+region_name = {{ options.region }}
+auth_version = {{auth_ver}}
+auth_uri = {{ identity_credentials.auth_protocol }}://{{ identity_credentials.auth_host }}:{{ identity_credentials.credentials_port }}/{{auth_ver}}
+auth_url = {{ identity_credentials.auth_protocol }}://{{ identity_credentials.auth_host }}:{{ identity_credentials.credentials_port }}
+auth_type = password
+
+{% if identity_credentials.credentials_project_domain_name -%}
+project_domain_name = {{ identity_credentials.credentials_project_domain_name }}
+user_domain_name = {{ identity_credentials.credentials_user_domain_name }}
+{% else %}
+project_domain_name = default
+user_domain_name = default
+{% endif -%}
+
+username = {{ identity_credentials.credentials_username }}
+password = {{ identity_credentials.credentials_password }}
+project_name = {{identity_credentials.credentials_project}}
+
+admin_user = {{ identity_credentials.credentials_username }}
+admin_password = {{ identity_credentials.credentials_password }}
+admin_tenant_name = {{identity_credentials.credentials_project}}
+
+{% if identity_credentials.signing_dir -%}
+signing_dir = {{ identity_credentials.signing_dir }}
+{% endif -%}
+{% endif -%}

src/test-requirements.txt

@@ -0,0 +1,8 @@
+# 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
+#
+# 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/tox.ini

@@ -0,0 +1,50 @@
+# 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
+
+[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
+deps=charm-tools
+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}

test-requirements.txt

@@ -0,0 +1,24 @@
+# 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
+requests>=2.18.4
+charms.reactive
+mock>=1.2
+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 +1,37 @@
+# Copyright 2016 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
+import mock
+
+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()
+sys.modules['charmhelpers.core.decorators'] = (
+    charms_openstack.test_mocks.charmhelpers.core.decorators)
+
+
+def _fake_retry(num_retries, base_delay=0, exc_type=Exception):
+    def _retry_on_exception_inner_1(f):
+        def _retry_on_exception_inner_2(*args, **kwargs):
+            return f(*args, **kwargs)
+        return _retry_on_exception_inner_2
+    return _retry_on_exception_inner_1
+
+mock.patch(
+    'charmhelpers.core.decorators.retry_on_exception',
+    _fake_retry).start()

unit_tests/test_neutron_ironic_handlers.py

@@ -0,0 +1,48 @@
+import mock
+
+import reactive.neutron_ironic_handlers as handlers
+
+import charms_openstack.test_utils as test_utils
+
+
+class TestRegisteredHooks(test_utils.TestRegisteredHooks):
+
+    def test_hooks(self):
+        hook_set = {
+            'when': {
+                'configure_principle': (
+                    'neutron-plugin-api-subordinate.connected', ),
+                'install_ironic': (
+                    'neutron-plugin-api-subordinate.available', ),
+                'render_stuff': (
+                    'identity-credentials.available', ),
+                'setup_endpoint': (
+                    'identity-credentials.connected', ),
+            }
+        }
+        self.registered_hooks_test_helper(handlers, hook_set, [])
+
+
+class TestHandlers(test_utils.PatchHelper):
+
+    def test_configure_principal(self):
+        mocked_reactive = mock.MagicMock()
+        self.patch_object(handlers, 'reactive',
+                          name='reactive',
+                          new=mocked_reactive)
+        principal_charm = mock.MagicMock()
+        mocked_reactive.endpoint_from_flag.return_value = principal_charm
+        principal_charm.neutron_config_data = {
+            'mechanism_drivers': 'driver1,driver2'
+        }
+
+        mocked_config = mock.MagicMock()
+        self.patch_object(handlers, 'config',
+                          name='config',
+                          new=mocked_config)
+        mocked_config.return_value = 'my_config_value'
+
+        handlers.configure_principal()
+        principal_charm.configure_plugin.assert_called_once_with(
+            neutron_plugin='ironic',
+            mechanism_drivers='driver1,driver2,baremetal')