Created digital_ocean_block_storage module (#4469)
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Harnek Sidhu
Matt Clay
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1 changed files with 336 additions and 0 deletions
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#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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import json
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import time
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DOCUMENTATION = '''
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---
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module: digital_ocean_block_storage
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short_description: Create/destroy or attach/detach Block Storage volumes in DigitalOcean
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description:
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- Create/destroy Block Storage volume in DigitalOcean, or attach/detach Block Storage volume to a droplet.
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version_added: "2.2"
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author: "Harnek Sidhu"
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options:
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command:
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description:
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- Which operation do you want to perform.
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choices: ['create', 'attach']
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required: true
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state:
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description:
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- Indicate desired state of the target.
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choices: ['present', 'absent']
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required: true
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api_token:
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description:
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- DigitalOcean api token.
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required: true
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block_size:
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description:
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- The size of the Block Storage volume in gigabytes. Required when command=create and state=present.
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volume_name:
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description:
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- The name of the Block Storage volume.
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required: true
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description:
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description:
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- Description of the Block Storage volume.
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region:
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description:
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- The slug of the region where your Block Storage volume should be located in.
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required: true
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droplet_id:
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description:
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- The droplet id you want to operate on. Required when command=attach.
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timeout:
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description:
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- The timeout in seconds used for polling DigitalOcean's API.
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default: 10
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notes:
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- Two environment variables can be used, DO_API_KEY and DO_API_TOKEN.
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They both refer to the v2 token.
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author:
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- "Harnek Sidhu (github: @harneksidhu)"
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'''
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EXAMPLES = '''
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# Create new Block Storage
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- digital_ocean_block_storage:
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state: present
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command: create
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api_token: <TOKEN>
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region: nyc1
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block_size: 10
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volume_name: nyc1-block-storage
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# Delete Block Storage
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- digital_ocean_block_storage:
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state: absent
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command: create
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api_token: <TOKEN>
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region: nyc1
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volume_name: nyc1-block-storage
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# Attach Block Storage to a Droplet
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- digital_ocean_block_storage:
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state: present
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command: attach
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api_token: <TOKEN>
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volume_name: nyc1-block-storage
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region: nyc1
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droplet_id: <ID>
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# Detach Block Storage from a Droplet
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- digital_ocean_block_storage:
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state: absent
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command: attach
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api_token: <TOKEN>
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volume_name: nyc1-block-storage
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region: nyc1
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droplet_id: <ID>
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'''
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RETURN = '''
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id:
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description: Unique identifier of a Block Storage volume returned during creation.
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returned: changed
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type: string
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sample: "69b25d9a-494c-12e6-a5af-001f53126b44"
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'''
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class DOBlockStorageException(Exception):
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pass
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class Response(object):
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def __init__(self, resp, info):
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self.body = None
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if resp:
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self.body = resp.read()
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self.info = info
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@property
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def json(self):
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if self.body:
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return json.loads(self.body)
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elif "body" in self.info:
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return json.loads(self.info["body"])
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else:
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return None
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@property
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def status_code(self):
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return self.info["status"]
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class Rest(object):
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def __init__(self, module, headers):
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self.module = module
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self.headers = headers
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self.baseurl = 'https://api.digitalocean.com/v2'
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def _url_builder(self, path):
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if path[0] == '/':
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path = path[1:]
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return '%s/%s' % (self.baseurl, path)
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def send(self, method, path, data=None, headers=None):
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url = self._url_builder(path)
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data = self.module.jsonify(data)
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resp, info = fetch_url(self.module, url, data=data, headers=self.headers, method=method)
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return Response(resp, info)
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def get(self, path, data=None, headers=None):
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return self.send('GET', path, data, headers)
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def put(self, path, data=None, headers=None):
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return self.send('PUT', path, data, headers)
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def post(self, path, data=None, headers=None):
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return self.send('POST', path, data, headers)
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def delete(self, path, data=None, headers=None):
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return self.send('DELETE', path, data, headers)
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class DOBlockStorage(object):
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def __init__(self, module):
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api_token = module.params['api_token'] or \
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os.environ['DO_API_TOKEN'] or os.environ['DO_API_KEY']
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self.module = module
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self.rest = Rest(module, {'Authorization': 'Bearer {}'.format(api_token),
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'Content-type': 'application/json'})
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def get_key_or_fail(self, k):
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v = self.module.params[k]
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if v is None:
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self.module.fail_json(msg='Unable to load %s' % k)
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return v
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def poll_action_for_complete_status(self, action_id):
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url = 'actions/{}'.format(action_id)
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end_time = time.time() + self.module.params['timeout']
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while time.time() < end_time:
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time.sleep(2)
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response = self.rest.get(url)
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status = response.status_code
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json = response.json
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if status == 200:
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if json['action']['status'] == 'completed':
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return True
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elif json['action']['status'] == 'errored':
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raise DOBlockStorageException(json['message'])
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raise DOBlockStorageException('Unable to reach api.digitalocean.com')
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def get_attached_droplet_ID(self, volume_name, region):
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url = 'volumes?name={}®ion={}'.format(volume_name, region)
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response = self.rest.get(url)
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status = response.status_code
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json = response.json
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if status == 200:
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volumes = json['volumes']
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if len(volumes)>0:
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droplet_ids = volumes[0]['droplet_ids']
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if len(droplet_ids)>0:
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return droplet_ids[0]
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return None
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else:
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raise DOBlockStorageException(json['message'])
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def attach_detach_block_storage(self, method, volume_name, region, droplet_id):
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data = {
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'type' : method,
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'volume_name' : volume_name,
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'region' : region,
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'droplet_id' : droplet_id
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}
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response = self.rest.post('volumes/actions', data=data)
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status = response.status_code
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json = response.json
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if status == 202:
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return self.poll_action_for_complete_status(json['action']['id'])
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elif status == 200:
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return True
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elif status == 422:
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return False
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else:
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raise DOBlockStorageException(json['message'])
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def create_block_storage(self):
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block_size = self.get_key_or_fail('block_size')
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volume_name = self.get_key_or_fail('volume_name')
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region = self.get_key_or_fail('region')
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description = self.module.params['description']
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data = {
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'size_gigabytes' : block_size,
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'name' : volume_name,
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'description' : description,
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'region' : region
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}
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response = self.rest.post("volumes", data=data)
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status = response.status_code
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json = response.json
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if status == 201:
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self.module.exit_json(changed=True, id=json['volume']['id'])
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elif status == 409 and json['id'] == 'already_exists':
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self.module.exit_json(changed=False)
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else:
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raise DOBlockStorageException(json['message'])
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def delete_block_storage(self):
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volume_name = self.get_key_or_fail('volume_name')
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region = self.get_key_or_fail('region')
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url = 'volumes?name={}®ion={}'.format(volume_name, region)
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attached_droplet_id = self.get_attached_droplet_ID(volume_name, region)
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if attached_droplet_id != None:
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self.attach_detach_block_storage('detach', volume_name, region, attached_droplet_id)
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response = self.rest.delete(url)
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status = response.status_code
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json = response.json
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if status == 204:
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self.module.exit_json(changed=True)
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elif status == 404:
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self.module.exit_json(changed=False)
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else:
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raise DOBlockStorageException(json['message'])
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def attach_block_storage(self):
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volume_name = self.get_key_or_fail('volume_name')
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region = self.get_key_or_fail('region')
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droplet_id = self.get_key_or_fail('droplet_id')
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attached_droplet_id = self.get_attached_droplet_ID(volume_name, region)
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if attached_droplet_id != None:
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if attached_droplet_id==droplet_id:
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self.module.exit_json(changed=False)
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else:
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self.attach_detach_block_storage('detach', volume_name, region, attached_droplet_id)
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changed_status = self.attach_detach_block_storage('attach', volume_name, region, droplet_id)
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self.module.exit_json(changed=changed_status)
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def detach_block_storage(self):
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volume_name = self.get_key_or_fail('volume_name')
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region = self.get_key_or_fail('region')
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droplet_id = self.get_key_or_fail('droplet_id')
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changed_status = self.attach_detach_block_storage('detach', volume_name, region, droplet_id)
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self.module.exit_json(changed=changed_status)
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def handle_request(module):
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block_storage = DOBlockStorage(module)
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command = module.params['command']
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state = module.params['state']
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if command == 'create':
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if state == 'present':
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block_storage.create_block_storage()
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elif state == 'absent':
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block_storage.delete_block_storage()
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elif command == 'attach':
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if state =='present':
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block_storage.attach_block_storage()
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elif state == 'absent':
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block_storage.detach_block_storage()
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def main():
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module = AnsibleModule(
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argument_spec=dict(
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state = dict(choices=['present', 'absent'], required=True),
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command = dict(choices=['create', 'attach'], required=True),
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api_token = dict(aliases=['API_TOKEN'], no_log=True),
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block_size = dict(type='int'),
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volume_name = dict(type='str', required=True),
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description = dict(type='str'),
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region = dict(type='str', required=True),
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droplet_id = dict(type='int'),
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timeout = dict(type='int', default=10),
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),
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)
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try:
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handle_request(module)
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except DOBlockStorageException:
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e = get_exception()
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module.fail_json(msg=e.message)
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except KeyError:
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e = get_exception()
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module.fail_json(msg='Unable to load %s' % e.message)
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from ansible.module_utils.basic import *
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from ansible.module_utils.urls import *
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if __name__ == '__main__':
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main()
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