initial commit

.gitignore

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+build
+.tox
+layers
+interfaces
+trusty
+.testrepository
+__pycache__
+.stestr

requirements.txt

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+charm-tools
+simplejson

src/config.yaml

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+options:
+  debug:
+    type: boolean
+    default: False
+    description: Enable debug logging.
+  verbose:
+    type: boolean
+    default: False
+    description: Enable verbose logging.
+  use-syslog:
+    type: boolean
+    default: False
+    description: |
+      Setting this to True will allow supporting services to log to syslog.
+  openstack-origin:
+    type: string
+    default: distro
+    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.
+      .
+      NOTE: updating this setting to a source that is known to provide
+      a later version of OpenStack will trigger a software upgrade unless
+      action-managed-upgrade is set to True.
+  harden:
+    type: string
+    default:
+    description: |
+      Apply system hardening. Supports a space-delimited list of modules
+      to run. Supported modules currently include os, ssh, apache and mysql.
+  nova-alchemy-flags:
+    type: string
+    default:
+    description: |
+      Comma-separated list of key=value sqlalchemy related config flags to be
+      set in nova.conf [database] section.
+  network-manager:
+    type: string
+    default: FlatDHCPManager
+    description: |
+      Network manager for the cloud; supports the following options:
+      .
+        FlatDHCPManager (nova-network) (default)
+        FlatManager (nova-network)
+        Neutron (Full SDN solution)
+      .
+      When using the Neutron option you will most likely want to use
+      the neutron-gateway charm to provide L3 routing and DHCP Services.
+  config-flags:
+    type: string
+    default:
+    description: |
+      Comma-separated list of key=value config flags. These values will be
+      placed in the nova.conf [DEFAULT] section.
+  region:
+    type: string
+    default: RegionOne
+    description: OpenStack Region
+  # Monitoring config
+  nagios_context:
+    type: string
+    default: "juju"
+    description: |
+      Used by the nrpe-external-master subordinate charm.
+      A string that will be prepended to instance name to set the host name
+      in nagios. So for instance the hostname would be something like:
+      .
+        juju-myservice-0
+      .
+      If you're running multiple environments with the same services in them
+      this allows you to differentiate between them.
+  nagios_servicegroups:
+    type: string
+    default: ""
+    description: |
+      A comma-separated list of nagios servicegroups. If left empty, the
+      nagios_context will be used as the servicegroup.
+  cell-name:
+    type: string
+    default: 
+    description: |
+      Name of the compute cell this controller is associated with. If this is
+      left unset or set to api then it is assumed that this controller will be
+      the top level api and cell0 controller.

src/layer.yaml

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+includes:
+  - layer:openstack-api
+  - interface:mysql-shared
+  - interface:rabbitmq
+  - interface:nova-compute
+  - interface:nova-cell
+options:
+  basic:
+    use_venv: true
+    include_system_packages: true

src/lib/charm/openstack/__init__.py

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+# 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.

src/lib/charm/openstack/nova_cell_controller.py

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+# 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.
+# The nova_cell_controller handlers class
+
+# bare functions are provided to the reactive handlers to perform the functions
+# needed on the class.
+from __future__ import absolute_import
+
+import collections
+import subprocess
+
+import charmhelpers.core.hookenv as hookenv
+
+import charms_openstack.charm
+import charms_openstack.adapters
+import charms_openstack.ip as os_ip
+
+PACKAGES = ['nova-conductor']
+NOVA_DIR = '/etc/nova/'
+NOVA_CONF = NOVA_DIR + "nova.conf"
+
+OPENSTACK_RELEASE_KEY = 'nova-charm.openstack-release-version'
+
+
+# select the default release function
+charms_openstack.charm.use_defaults('charm.default-select-release')
+
+
+class NovaCellControllerCharm(charms_openstack.charm.HAOpenStackCharm):
+    """NovaCellControllerCharm provides the specialisation of the OpenStackCharm
+    functionality to manage a nova_cell_controller unit.
+    """
+
+    release = 'mitaka'
+    name = 'nova-cell-controller'
+    packages = PACKAGES
+    service_type = 'nova-cell-controller'
+    default_service = 'nova-conductor'
+    services = ['nova-conductor']
+
+    # Note that the hsm interface is optional - defined in config.yaml
+    required_relations = ['shared-db', 'amqp']
+
+    restart_map = {
+        NOVA_CONF: services,
+    }
+
+    # Package for release version detection
+    release_pkg = 'nova-common'
+
+    # Package codename map for nova-common
+    package_codenames = {
+        'nova-common': collections.OrderedDict([
+            ('13', 'mitaka'),
+            ('14', 'newton'),
+            ('15', 'ocata'),
+            ('16', 'pike'),
+            ('17', 'queens'),
+            ('18', 'rocky'),
+        ]),
+    }
+
+    sync_cmd = ['nova-manage', 'db', 'sync' ,'--local_cell']
+
+    def get_amqp_credentials(self):
+        """Provide the default amqp username and vhost as a tuple.
+
+        :returns (username, host): two strings to send to the amqp provider.
+        """
+        return ('nova', 'openstack')
+
+    def get_database_setup(self):
+        """Provide the default database credentials as a list of 3-tuples
+
+        returns a structure of:
+        [
+            {'database': <database>,
+             'username': <username>,
+             'hostname': <hostname of this unit>
+             'prefix': <the optional prefix for the database>, },
+        ]
+
+        :returns [{'database': ...}, ...]: credentials for multiple databases
+        """
+        return [{'username': 'nova', 'database': 'nova'}]
+
+
+    def states_to_check(self, required_relations=None):
+        """Override the default states_to_check() for the assess_status
+        functionality so that, if we have to have an HSM relation, then enforce
+        it on the assess_status() call.
+
+        If param required_relations is not None then it overrides the
+        instance/class variable self.required_relations.
+
+        :param required_relations: [list of state names]
+        :returns: [states{} as per parent method]
+        """
+        if required_relations is None:
+            required_relations = self.required_relations
+        return super(NovaCellControllerCharm, self).states_to_check(
+            required_relations=required_relations)

src/metadata.yaml

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+name: nova-cell-controller
+summary: OpenStack Compute - Nova cloud controller for a cell.
+maintainer: OpenStack Charmers <openstack-charmers@lists.ubuntu.com>
+description: |
+ OpenStack is a reliable cloud infrastructure. Its mission is to produce
+ the ubiquitous cloud computing platform that will meet the needs of public
+ and private cloud providers regardless of size, by being simple to implement
+ and massively scalable.
+ .
+ OpenStack Compute, codenamed Nova, is a cloud computing fabric controller. In
+ addition to its "native" API (the OpenStack API), it also supports the Amazon
+ EC2 API.
+ .
+ This charm provides the cloud controller service for OpenStack Nova cell
+ and includes nova-conductor service.
+tags:
+  - openstack
+series:
+  - xenial
+  - bionic
+  - artful
+  - trusty
+extra-bindings:
+  public:
+  admin:
+  internal:
+provides:
+  nrpe-external-master:
+    interface: nrpe-external-master
+    scope: container
+  cloud-controller:
+    interface: nova
+requires:
+  shared-db:
+    interface: mysql-shared
+  amqp:
+    interface: rabbitmq
+  cloud-compute:
+    interface: nova-compute
+  nova-cell-compute:
+    interface: nova-cell
+peers:
+  cluster:
+    interface: nova-ha
+

src/reactive/__init__.py

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+# 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.

src/reactive/nova_cell_controller_handlers.py

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+# Copyright 2018 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.
+
+# this is just for the reactive handlers and calls into the charm.
+from __future__ import absolute_import
+
+import charms.reactive as reactive
+import charmhelpers.core.hookenv as hookenv
+
+import charms_openstack.charm as charm
+
+from charms.reactive.relations import (
+    endpoint_from_flag,
+)
+
+from charms.reactive.flags import (
+    is_flag_set,
+    set_flag,
+    clear_flag,
+)
+
+# This charm's library contains all of the handler code associated with
+# nova_cell_controller -- we need to import it to get the definitions for the
+# charm.
+import charm.openstack.nova_cell_controller as nova_cell_controller  # noqa
+
+
+# Use the charms.openstack defaults for common states and hooks
+charm.use_defaults(
+    'charm.installed',
+    'amqp.connected',
+    'shared-db.connected',
+    'config.changed',
+    'update-status')
+
+
+# Note that because of the way reactive.when works, (which is to 'find' the
+# __code__ segment of the decorated function, it's very, very difficult to add
+# other kinds of decorators here.  This rules out adding other things into the
+# charm args list.  It is also CPython dependent.
+@reactive.when('shared-db.available')
+@reactive.when('amqp.available')
+def render_stuff(*args):
+    """Render the configuration for Nova cell controller when all the interfaces
+    are available.
+
+    """
+    hookenv.log("about to call the render_configs with {}".format(args))
+    with charm.provide_charm_instance() as nova_cell_controller_charm:
+        nova_cell_controller_charm.render_with_interfaces(args)
+        nova_cell_controller_charm.assess_status()
+        set_flag('config.rendered')
+
+
+@reactive.when_not('shared-db.synced')
+@reactive.when('config.rendered')
+def db_setup(*args):
+    with charm.provide_charm_instance() as cell_charm:
+        cell_charm.db_sync()
+        cell_charm.restart_all()
+        set_flag('shared-db.synced')
+
+
+@reactive.when('endpoint.nova-cell-compute.changed')
+@reactive.when('endpoint.cloud-compute.joined')
+def send_compute_data():
+    nc = endpoint_from_flag('endpoint.cloud-compute.joined')
+    ncc_ep = endpoint_from_flag('endpoint.nova-cell-compute.changed')
+    ncc_console_data = ncc_ep.get_console_data()
+    ncc_network_data = ncc_ep.get_network_data()
+    nc.set_network_data(
+        ncc_network_data['quantum_url'],
+        neutron_plugin=ncc_network_data['quantum_plugin'],
+        network_manager=ncc_network_data['network_manager'],
+        enable_security_groups=ncc_network_data['quantum_security_groups'])
+    nc.set_console_data(
+        serial_console_base_url=ncc_console_data['serial_console_base_url'],
+        enable_serial_console=ncc_console_data['enable_serial_console'])
+    nc.set_region(ncc_ep.get_region()['region'])
+    nc.set_volume_data(ncc_ep.get_volume_data()['volume_service'])
+    nc.set_ec2_data(ncc_ep.get_ec2_data()['ec2_host'])
+
+@reactive.when('shared-db.available')
+@reactive.when('amqp.available')
+@reactive.when('endpoint.nova-cell-compute.joined')
+def send_cell_data():
+    ncc_ep = endpoint_from_flag('endpoint.nova-cell-compute.joined')
+    amqp_conv = endpoint_from_flag('amqp.available').conversation()
+    # Push this calculation of service names down into the interfaces
+    amqp_service_names = [u.split('/')[0] for u in amqp_conv.units if u]
+    db_conv = endpoint_from_flag('shared-db.available').conversation()
+    db_service_names = [u.split('/')[0] for u in db_conv.units if u]
+    ncc_ep.send_cell_data(
+        hookenv.config('cell-name'),
+        amqp_service_names[0],
+        db_service_names[0])

src/templates/mitaka/nova.conf

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+# mitaka
+###############################################################################
+# [ WARNING ]
+# Configuration file maintained by Juju. Local changes may be overwritten.
+###############################################################################
+[DEFAULT]
+verbose={{ options.verbose }}
+debug={{ options.debug }}
+logdir=/var/log/nova
+state_path=/var/lib/nova
+root_helper=sudo nova-rootwrap /etc/nova/rootwrap.conf
+
+{% include "parts/database" %}
+
+[conductor]
+workers = {{ options.workers }}
+
+{% include "parts/section-rabbitmq-oslo" %}

tox.ini

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+# Source charm: ./tox.ini
+# This file is managed centrally by release-tools and should not be modified
+# within individual charm repos.
+[tox]
+skipsdist = True
+envlist = pep8,py34,py35
+skip_missing_interpreters = True
+
+[testenv]
+setenv = VIRTUAL_ENV={envdir}
+         PYTHONHASHSEED=0
+         TERM=linux
+         LAYER_PATH={toxinidir}/layers
+         JUJU_REPOSITORY={toxinidir}/build
+passenv = http_proxy https_proxy INTERFACE_PATH
+install_command =
+  pip install {opts} {packages}
+deps =
+    -r{toxinidir}/requirements.txt
+
+[testenv:build]
+basepython = python2.7
+commands =
+    charm-build --log-level DEBUG -o {toxinidir}/build src {posargs}
+
+[testenv:py27]
+basepython = python2.7
+# Reactive source charms are Python3-only, but a py27 unit test target
+# is required by OpenStack Governance.  Remove this shim as soon as
+# permitted.  http://governance.openstack.org/reference/cti/python_cti.html
+whitelist_externals = true
+commands = true
+
+[testenv:py34]
+basepython = python3.4
+deps = -r{toxinidir}/test-requirements.txt
+commands = ostestr {posargs}
+
+[testenv:py35]
+basepython = python3.5
+deps = -r{toxinidir}/test-requirements.txt
+commands = ostestr {posargs}
+
+[testenv:pep8]
+basepython = python3.5
+deps = -r{toxinidir}/test-requirements.txt
+commands = flake8 {posargs} src unit_tests
+
+[testenv:venv]
+commands = {posargs}
+
+[flake8]
+# E402 ignore necessary for path append before sys module import in actions
+ignore = E402