Neutron Dynamic Routing Agent

.gitignore

@@ -0,0 +1,7 @@
+build
+layers
+.tox
+interfaces
+.testrepository
+*__pycache__*
+*.pyc

LICENSE

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README.md

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+# 

rebuild

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+# 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
+1925591e-fd45-11e7-b703-eb6b652fac69

requirements.txt

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+charm-tools
+simplejson

src/HACKING.md

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+# Overview
+
+This charm is developed as part of the OpenStack Charms project, and as such you
+should refer to the [OpenStack Charm Development Guide](https://github.com/openstack/charm-guide) for details on how
+to contribute to this charm.
+
+You can find its source code here: <https://github.com/openstack/charm-barbican>.
+
+
+

src/README.md

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+

src/config.yaml

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+options:
+  bgp-peer-ips:
+    default:
+    type: string
+    description: |
+      Space delimited IPs of BGP peers.

src/layer.yaml

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+includes:
+  - layer:openstack-principle
+  - interface:rabbitmq
+#repo: https://github.com/openstack/charm-neutron-dynamic-routing
+options:
+  basic:
+    use_venv: true
+    include_system_packages: true

src/lib/__init__.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.

src/lib/charm/__init__.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.

src/lib/charm/openstack/__init__.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.

src/lib/charm/openstack/dragent.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.
+# The dragent 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 charmhelpers.contrib.network.ip as ch_ip
+
+import charms_openstack.charm
+import charms_openstack.adapters as os_adapters
+
+PACKAGES = ['neutron-bgp-dragent', 'neutron-dynamic-routing-common',
+            'python-neutron-dynamic-routing']
+NEUTRON_DIR = '/etc/neutron/'
+NEUTRON_CONF = NEUTRON_DIR + "neutron.conf"
+DRAGENT_CONF = NEUTRON_DIR + "bgp_dragent.ini"
+
+OPENSTACK_RELEASE_KEY = ('neutron-dynamic-routing-charm.'
+                         'openstack-release-version')
+
+
+# select the default release function
+charms_openstack.charm.use_defaults('charm.default-select-release')
+
+
+def render_configs(interfaces_list):
+    """Using a list of interfaces, render the configs and, if they have
+    changes, restart the services on the unit.
+    """
+    # Starting out with just amqp
+    try:
+        [i for i in interfaces_list]
+    except TypeError:
+        interfaces_list = [interfaces_list]
+    DRAgentCharm.singleton.render_with_interfaces(interfaces_list)
+
+
+def assess_status():
+    """Just call the DRAgentCharm.singleton.assess_status() command to update
+    status on the unit.
+    """
+    DRAgentCharm.singleton.assess_status()
+
+
+@os_adapters.config_property
+def provider_ip(cls):
+    return ch_ip.get_relation_ip('provider')
+
+
+@os_adapters.config_property
+def speaker_ip(cls):
+    return ch_ip.get_relation_ip('speaker')
+
+
+class TransportURLAdapter(os_adapters.RabbitMQRelationAdapter):
+    """Add Transport URL to RabbitMQRelationAdapter
+    TODO: Move to charms.openstack.adapters
+    """
+
+    @property
+    def transport_url(self):
+        hosts = self.hosts or [self.host]
+        if hosts:
+            transport_url_hosts = ','.join([
+                "{}:{}@{}:{}".format(self.username,
+                                     self.password,
+                                     host_,
+                                     self.port)
+                for host_ in hosts])
+            return "rabbit://{}/{}".format(transport_url_hosts, self.vhost)
+
+    @property
+    def port(self):
+        return self.ssl_port or 5672
+
+
+class BGPPeerRelationAdapter(os_adapters.OpenStackRelationAdapter):
+
+    """
+    STub Adapter for the BGPPeerProvides relation interface.
+    """
+
+    interface_type = 'bgp'
+
+    @property
+    def provider_ip(self):
+        return ch_ip.get_relation_ip('provider')
+
+    @property
+    def speaker_ip(self):
+        return ch_ip.get_relation_ip('speaker')
+
+
+class DRAgentCharm(charms_openstack.charm.OpenStackCharm):
+    """DRAgentCharm provides the specialisation of the OpenStackCharm
+    functionality to manage a dragent unit.
+    """
+
+    release = 'pike'
+    name = 'neutron-dynamic-routing'
+    packages = PACKAGES
+    default_service = 'neutron-bgp-dragent'
+    services = ['neutron-bgp-dragent']
+
+    # Note that the hsm interface is optional - defined in config.yaml
+    required_relations = ['amqp']
+
+    adapters_class = os_adapters.OpenStackRelationAdapters
+    adapters_class.relation_adapters = {
+        'amqp': TransportURLAdapter,
+        'bgp': BGPPeerRelationAdapter,
+    }
+
+    restart_map = {
+        NEUTRON_CONF: services,
+        DRAGENT_CONF: services,
+    }
+
+    # Package for release version detection
+    release_pkg = 'neutron-dynamic-routing-common'
+
+    # Package codename map for barbican-common
+    package_codenames = {
+        'neutron-dynamic-routing-common': collections.OrderedDict([
+            ('11', 'pike'),
+            ('12', 'queens'),
+            ('13', 'rocky'),
+        ]),
+    }
+
+    def install(self):
+        self.configure_source()
+        super().install()
+
+    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 (self.config['rabbit-user'], self.config['rabbit-vhost'])
+
+    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(DRAgentCharm, self).states_to_check(
+            required_relations=required_relations)

src/metadata.yaml

@@ -0,0 +1,17 @@
+name: neutron-dynamic-routing
+summary: Neutron Dyanamic Routing Agent
+maintainer: OpenStack Charmers <openstack-charmers@lists.ubuntu.com>
+description: |
+ Neutron Dyanamic Routing Agent acts as a BGP speaker advertisiging OpenStack networks to the BGP infrastructure.
+tags:
+  - openstack
+series:
+  - xenial
+  - bionic
+subordinate: false
+extra-bindings:
+  provider:
+  speaker:
+requires:
+  amqp:
+    interface: rabbitmq

src/reactive/__init__.py

@@ -0,0 +1,13 @@
+# 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.

src/reactive/dragent_handlers.py

@@ -0,0 +1,57 @@
+# 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
+
+# This charm's library contains all of the handler code associated with
+# dragent -- we need to import it to get the definitions for the charm.
+import charm.openstack.dragent as dragent  # noqa
+
+
+# Use the charms.openstack defaults for common states and hooks
+charm.use_defaults(
+    'charm.installed',
+    'amqp.connected',
+    'config.changed',
+    'update-status')
+
+
+@reactive.when('amqp.connected')
+def setup_amqp_req(amqp):
+    """Use the amqp interface to request access to the amqp broker using our
+    local configuration.
+    """
+    amqp.request_access(username='dragent',
+                        vhost='openstack')
+    dragent.assess_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('amqp.available')
+def render_stuff(amqp):
+    """Render the configuration for Barbican when all the interfaces are
+    available.
+    """
+    hookenv.log("about to call the render_configs with {}".format(amqp))
+    dragent.render_configs(amqp)
+    dragent.assess_status()

src/templates/bgp_dragent.ini

@@ -0,0 +1,14 @@
+[DEFAULT]
+
+
+[bgp]
+
+#
+# From bgp.agent
+#
+
+# BGP speaker driver class to be instantiated. (string value)
+bgp_speaker_driver = neutron_dynamic_routing.services.bgp.agent.driver.ryu.driver.RyuBgpDriver
+
+# 32-bit BGP identifier, typically an IPv4 address owned by the system running the BGP DrAgent. (string value)
+bgp_router_id = {{options.speaker_ip}}

src/templates/neutron.conf

@@ -0,0 +1,17 @@
+###############################################################################
+# [ WARNING ]
+# Configuration file maintained by Juju. Local changes may be overwritten.
+###############################################################################
+[DEFAULT]
+verbose = {{ options.verbose }}
+debug = {{ options.debug }}
+
+[agent]
+root_helper = sudo /usr/bin/neutron-rootwrap /etc/neutron/rootwrap.conf
+
+{% include "parts/section-rabbitmq-oslo" %}
+
+{% include "parts/section-oslo-notifications" %}
+
+[oslo_concurrency]
+lock_path = /var/lock/neutron

src/templates/parts/section-oslo-notifications

@@ -0,0 +1,5 @@
+{% if amqp.transport_url -%}
+[oslo_messaging_notifications]
+driver = messagingv2
+transport_url = {{ amqp.transport_url }}
+{% endif -%}

src/test-requirements.txt

@@ -0,0 +1,32 @@
+# The order of packages is significant, because pip processes them in the order
+# of appearance. Changing the order has an impact on the overall integration
+# process, which may cause wedges in the gate later.
+coverage>=3.6
+mock>=1.2
+flake8>=2.2.4,<=2.4.1
+os-testr>=0.4.1
+charm-tools>=2.0.0
+requests==2.6.0
+# amulet deployment helpers
+git+https://github.com/juju/charm-helpers#egg=charmhelpers
+# BEGIN: Amulet OpenStack Charm Helper Requirements
+# Liberty client lower constraints
+amulet>=1.14.3,<2.0
+bundletester>=0.6.1,<1.0
+aodhclient>=0.1.0
+python-barbicanclient>=4.0.1
+python-ceilometerclient>=1.5.0
+python-cinderclient>=1.4.0
+python-designateclient>=1.5
+python-glanceclient>=1.1.0
+python-heatclient>=0.8.0
+python-keystoneclient>=1.7.1
+python-neutronclient>=3.1.0
+python-novaclient>=2.30.1
+python-openstackclient>=1.7.0
+python-swiftclient>=2.6.0
+pika>=0.10.0,<1.0
+distro-info
+# END: Amulet OpenStack Charm Helper Requirements
+# NOTE: workaround for 14.04 pip/tox
+pytz

src/tox.ini

@@ -0,0 +1,53 @@
+# Source charm: ./src/tox.ini
+# This file is managed centrally by release-tools and should not be modified
+# within individual charm repos.
+[tox]
+envlist = pep8
+skipsdist = True
+
+[testenv]
+setenv = VIRTUAL_ENV={envdir}
+         PYTHONHASHSEED=0
+         AMULET_SETUP_TIMEOUT=2700
+whitelist_externals = juju
+passenv = HOME TERM AMULET_* CS_API_URL
+deps = -r{toxinidir}/test-requirements.txt
+install_command =
+  pip install --allow-unverified python-apt {opts} {packages}
+
+[testenv:pep8]
+basepython = python2.7
+commands = charm-proof
+
+[testenv:func27-noop]
+# DRY RUN - For Debug
+basepython = python2.7
+commands =
+    bundletester -vl DEBUG -r json -o func-results.json --test-pattern "gate-*" -n --no-destroy
+
+[testenv:func27]
+# Run all gate tests which are +x (expected to always pass)
+basepython = python2.7
+commands =
+    bundletester -vl DEBUG -r json -o func-results.json --test-pattern "gate-*" --no-destroy
+
+[testenv:func27-smoke]
+# Run a specific test as an Amulet smoke test (expected to always pass)
+basepython = python2.7
+commands =
+    bundletester -vl DEBUG -r json -o func-results.json gate-basic-xenial-pike --no-destroy
+
+[testenv:func27-dfs]
+# Run all deploy-from-source tests which are +x (may not always pass!)
+basepython = python2.7
+commands =
+    bundletester -vl DEBUG -r json -o func-results.json --test-pattern "dfs-*" --no-destroy
+
+[testenv:func27-dev]
+# Run all development test targets which are +x (may not always pass!)
+basepython = python2.7
+commands =
+    bundletester -vl DEBUG -r json -o func-results.json --test-pattern "dev-*" --no-destroy
+
+[testenv:venv]
+commands = {posargs}

test-requirements.txt

@@ -0,0 +1,7 @@
+# Lint and unit test requirements
+flake8
+os-testr>=0.4.1
+charms.reactive
+mock>=1.2
+coverage>=3.6
+git+https://github.com/openstack/charms.openstack.git#egg=charms-openstack

tox.ini

@@ -0,0 +1,55 @@
+# 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
+         INTERFACE_PATH={toxinidir}/interfaces
+         JUJU_REPOSITORY={toxinidir}/build
+passenv = http_proxy https_proxy
+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