Adding Magnum plugin
Adding Magnum plugin with support for creating, updating, and deleting Cluster Templates Change-Id: I6e158001acf9b6d6f924a5459142ee87eba09ff2
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Chris Hultin
parent
544adfe686
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18bbe27c1a
267
library/magnum
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267
library/magnum
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#!/usr/bin/env python
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# Copyright 2016, Rackspace US, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from magnumclient import client as magnum_client
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from ansible.module_utils.basic import *
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DOCUMENTATION = """
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---
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module: magnum
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version_added: "1.9.4"
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short_description:
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- Manage OpenStack Magnum Cluster Templates
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description:
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- Manage OpenStack Magnum Cluster Templates
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options:
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action:
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description:
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- Indicate the desired state of the resource
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choices: ['template-present', 'template-absent']
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required: true
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name:
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description:
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- Name of the resource
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required: true
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openrc_path:
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description:
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- Path to OpenRC file
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required: true
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insecure:
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description:
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- Explicitly allow client to perform "insecure" TLS
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choices:
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- false
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- true
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default: false
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keypair:
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description:
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- Keypair for Cluster Template
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required: false
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image:
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description:
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- Image for Cluster Template
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required: false
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external_network:
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description:
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- External Network for Cluster Template
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required: false
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dns_nameserver:
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description:
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- DNS Nameserver for Cluster Template
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required: false
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flavor:
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description:
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- Flavor for Cluster Template
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required: false
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docker_volume_size:
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description:
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- Volume size (in GB) for Cluster Template
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required: false
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coe:
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description:
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- Container Orchestration Engine for Cluster Template
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required: false
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public:
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description:
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- Whether or not Cluster Template should be visible to all users
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required: false
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requirements: [ python-magnumclient ]
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author: Christopher Hultin
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"""
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EXAMPLES = """
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#Create Swarm Template
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- magnum:
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action: 'template-present'
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name: 'swarm-dev-test'
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openrc_path: '/root/openrc'
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insecure: True
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keypair: 'testkey'
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image: 'fedora-atomic-latest'
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external_network: 'public'
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dns_nameserver: '8.8.8.8'
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flavor: 'm1.small'
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docker_volume_size: 5
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coe: 'swarm'
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public: 'false'
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#Change the DNS Nameserver
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- magnum:
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action: 'template-present'
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name: 'swarm-dev-test'
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openrc_path: '/root/openrc'
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insecure: True
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keypair: 'testkey'
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image: 'fedora-atomic-latest'
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external_network: 'public'
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dns_nameserver: '8.8.4.4'
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flavor: 'm1.small'
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docker_volume_size: 5
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coe: 'swarm'
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public: 'false'
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#Delete Template
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- magnum:
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action: 'template-absent'
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name: 'swarm-dev-test'
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openrc_path: '/root/openrc'
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insecure: True
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"""
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COMMAND_MAP = {
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'template-present': 'template_present',
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'template-absent': 'template_absent',
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}
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class ManageMagnum(object):
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def __init__(self, module):
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self.state_change = False
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self.magnum = None
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self.module = module
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try:
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self._init_magnum()
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except Exception as e:
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self.module.fail_json(
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err="Initialisation Error: %s" % e,
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rc=2, msg=str(e))
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def _parse_openrc(self):
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"""Get credentials from an openrc file."""
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openrc_path = self.module.params['openrc_path']
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line_re = re.compile('^export (?P<key>OS_\w*)=(?P<value>[^\n]*)')
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with open(openrc_path) as openrc:
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matches = [line_re.match(l) for l in openrc]
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return dict(
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(g.groupdict()['key'], g.groupdict()['value'])
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for g in matches if g
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)
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def _init_magnum(self):
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openrc = self._parse_openrc()
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self.magnum = magnum_client.Client(
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username=openrc['OS_USERNAME'],
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password=openrc['OS_PASSWORD'],
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project_name=openrc['OS_PROJECT_NAME'],
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auth_url=openrc['OS_AUTH_URL'],
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service_type='container-infra',
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insecure=self.module.params['insecure'],
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user_domain_name=openrc['OS_USER_DOMAIN_NAME'],
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project_domain_name=openrc['OS_PROJECT_DOMAIN_NAME']
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)
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def route(self):
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"""Run the command specified by the command parameter."""
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getattr(self, COMMAND_MAP[self.module.params['action']])()
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def template_present(self):
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p = self.module.params
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template_name = p['name']
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template_opts = dict(
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name=template_name,
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image_id=p['image'],
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keypair_id=p['keypair'],
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external_network_id=p['external_network'],
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dns_nameserver=p['dns_nameserver'],
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flavor_id=p['flavor'],
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docker_volume_size=p['docker_volume_size'],
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coe=p['coe'],
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public=p['public']
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)
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template_found = False
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updates = []
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for template in self.magnum.cluster_templates.list(detail=True):
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if template.name == template_name:
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template_found = True
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if not template_found:
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try:
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self.magnum.cluster_templates.create(**template_opts)
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except Exception as e:
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self.module.fail_json(
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msg="Failed to create template: {}".format(e)
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)
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self.state_change = True
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self.module.exit_json(
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changed=self.state_change
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)
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else:
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try:
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for opt, val in template_opts.iteritems():
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if (val != getattr(template, opt) and
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val is not None):
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updates.append({opt: val})
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except Exception as e:
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self.module.fail_json(
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msg="Error: Parameters are undefined: {}".format(e)
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)
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if len(updates) >= 1:
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try:
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self.magnum.cluster_templates.update(template_name, updates)
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except Exception as e:
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self.module.fail_json(
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msg="Failed to update template: {}".format(e)
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)
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self.state_change = True
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else:
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self.state_change = False
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self.module.exit_json(
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changed=self.state_change
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)
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def template_absent(self):
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p = self.module.params
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template_name = p['name']
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for template in self.magnum.cluster_templates.list(detail=True):
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if template.name == template_name:
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try:
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self.magnum.cluster_templates.delete(template_name)
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except Exception as e:
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self.module.fail_json(
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msg="Failed to delete template: {}".format(e)
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)
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self.state_change = True
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self.module.exit_json(
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changed=self.state_change
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)
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def main():
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module = AnsibleModule(
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argument_spec={
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"name": {"required": True, "type": "str"},
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"image": {"required": False, "type": "str"},
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"keypair": {"required": False, "type": "str"},
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"external_network": {"required": False, "type": "str"},
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"dns_nameserver": {"required": False, "type": "str"},
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"flavor": {"required": False, "type": "str"},
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"docker_volume_size": {"required": False, "type": "int"},
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"coe": {"required": False, "type": "str"},
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"public": {"required": False, "type": "bool"},
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"openrc_path": {"required": True, "type": "str"},
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"insecure": {"required": False, "default": False, "type": "bool"},
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"action": {
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"choices": ['template-present', 'template-absent',
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'cluster-present', 'cluster-absent'],
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"type": "str"
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},
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},
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supports_check_mode=False
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)
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mg = ManageMagnum(module)
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mg.route()
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if __name__ == '__main__':
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main()
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