cloudstack: new module cs_snapshot_policy (#2303)

cloud/cloudstack/cs_snapshot_policy.py

@@ -0,0 +1,323 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+#
+# (c) 2016, René Moser <mail@renemoser.net>
+#
+# This file is part of Ansible
+#
+# Ansible is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Ansible is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
+
+DOCUMENTATION = '''
+---
+module: cs_snapshot_policy
+short_description: Manages volume snapshot policies on Apache CloudStack based clouds.
+description:
+    - Create, update and delete volume snapshot policies.
+version_added: '2.2'
+author: "René Moser (@resmo)"
+options:
+  volume:
+    description:
+      - Name of the volume.
+    required: true
+  interval_type:
+    description:
+      - Interval of the snapshot.
+    required: false
+    default: 'daily'
+    choices: [ 'hourly', 'daily', 'weekly', 'monthly' ]
+    aliases: [ 'interval' ]
+  max_snaps:
+    description:
+      - Max number of snapshots.
+    required: false
+    default: 8
+    aliases: [ 'max' ]
+  schedule:
+    description:
+      - Time the snapshot is scheduled. Required if C(state=present).
+      - 'Format for C(interval_type=HOURLY): C(MM)'
+      - 'Format for C(interval_type=DAILY): C(MM:HH)'
+      - 'Format for C(interval_type=WEEKLY): C(MM:HH:DD (1-7))'
+      - 'Format for C(interval_type=MONTHLY): C(MM:HH:DD (1-28))'
+    required: false
+    default: null
+  time_zone:
+    description:
+      - Specifies a timezone for this command.
+    required: false
+    default: 'UTC'
+    aliases: [ 'timezone' ]
+  state:
+    description:
+      - State of the resource.
+    required: false
+    default: 'present'
+    choices: [ 'present', 'absent' ]
+  domain:
+    description:
+      - Domain the resource is related to.
+    required: false
+    default: null
+  account:
+    description:
+      - Account the resource is related to.
+    required: false
+    default: null
+  project:
+    description:
+      - Name of the project the resource is related to.
+    required: false
+    default: null
+extends_documentation_fragment: cloudstack
+'''
+
+EXAMPLES = '''
+# Ensure a snapshot policy daily at 1h00 UTC
+- local_action:
+    module: cs_snapshot_policy
+    volume: ROOT-478
+    schedule: '00:1'
+    max_snaps: 3
+
+# Ensure a snapshot policy hourly at minute 5 UTC
+- local_action:
+    module: cs_snapshot_policy
+    volume: ROOT-478
+    schedule: '5'
+    interval_type: hourly
+    max_snaps: 1
+
+# Ensure a snapshot policy weekly on Sunday at 05h00, TZ Europe/Zurich
+- local_action:
+    module: cs_snapshot_policy
+    volume: ROOT-478
+    schedule: '00:5:1'
+    interval_type: weekly
+    max_snaps: 1
+    time_zone: 'Europe/Zurich'
+
+# Ensure a snapshot policy is absent
+- local_action:
+    module: cs_snapshot_policy
+    volume: ROOT-478
+    interval_type: hourly
+    state: absent
+'''
+
+RETURN = '''
+---
+id:
+  description: UUID of the snapshot policy.
+  returned: success
+  type: string
+  sample: a6f7a5fc-43f8-11e5-a151-feff819cdc9f
+interval_type:
+  description: interval type of the snapshot policy.
+  returned: success
+  type: string
+  sample: daily
+schedule:
+  description: schedule of the snapshot policy.
+  returned: success
+  type: string
+  sample:
+max_snaps:
+  description: maximum number of snapshots retained.
+  returned: success
+  type: int
+  sample: 10
+time_zone:
+  description: the time zone of the snapshot policy.
+  returned: success
+  type: string
+  sample: Etc/UTC
+volume:
+  description: the volume of the snapshot policy.
+  returned: success
+  type: string
+  sample: Etc/UTC
+zone:
+  description: Name of zone the volume is related to.
+  returned: success
+  type: string
+  sample: ch-gva-2
+project:
+  description: Name of project the volume is related to.
+  returned: success
+  type: string
+  sample: Production
+account:
+  description: Account the volume is related to.
+  returned: success
+  type: string
+  sample: example account
+domain:
+  description: Domain the volume is related to.
+  returned: success
+  type: string
+  sample: example domain
+'''
+
+# import cloudstack common
+from ansible.module_utils.cloudstack import *
+
+
+class AnsibleCloudStackSnapshotPolicy(AnsibleCloudStack):
+
+    def __init__(self, module):
+        super(AnsibleCloudStackSnapshotPolicy, self).__init__(module)
+        self.returns = {
+            'schedule': 'schedule',
+            'timezone': 'time_zone',
+            'maxsnaps': 'max_snaps',
+        }
+        self.interval_types = {
+            'hourly':   0,
+            'daily':    1,
+            'weekly':   2,
+            'monthly':  3,
+        }
+        self.volume = None
+
+    def get_interval_type(self):
+        interval_type = self.module.params.get('interval_type')
+        return self.interval_types[interval_type]
+
+    def get_volume(self, key=None):
+        if self.volume:
+            return self._get_by_key(key, self.volume)
+
+        args = {
+            'name':         self.module.params.get('volume'),
+            'account':      self.get_account(key='name'),
+            'domainid':     self.get_domain(key='id'),
+            'projectid':    self.get_project(key='id'),
+        }
+        volumes = self.cs.listVolumes(**args)
+        if volumes:
+            self.volume = volumes['volume'][0]
+            return self._get_by_key(key, self.volume)
+        return None
+
+    def get_snapshot_policy(self):
+        args = {
+            'volumeid': self.get_volume(key='id')
+        }
+        policies = self.cs.listSnapshotPolicies(**args)
+        if policies:
+            for policy in policies['snapshotpolicy']:
+                if policy['intervaltype'] == self.get_interval_type():
+                    return policy
+            return None
+
+    def present_snapshot_policy(self):
+        required_params = [
+            'schedule',
+        ]
+        self.module.fail_on_missing_params(required_params=required_params)
+
+        policy = self.get_snapshot_policy()
+        args = {
+            'intervaltype': self.module.params.get('interval_type'),
+            'schedule':     self.module.params.get('schedule'),
+            'maxsnaps':     self.module.params.get('max_snaps'),
+            'timezone':     self.module.params.get('time_zone'),
+            'volumeid':     self.get_volume(key='id')
+        }
+        if not policy or (policy and self.has_changed(policy, args)):
+            self.result['changed'] = True
+            if not self.module.check_mode:
+                res = self.cs.createSnapshotPolicy(**args)
+                policy = res['snapshotpolicy']
+                if 'errortext' in policy:
+                    self.module.fail_json(msg="Failed: '%s'" % policy['errortext'])
+        return policy
+
+    def absent_snapshot_policy(self):
+        policy = self.get_snapshot_policy()
+        if policy:
+            self.result['changed'] = True
+            args = {
+                'id': policy['id']
+            }
+            if not self.module.check_mode:
+                res = self.cs.deleteSnapshotPolicies(**args)
+                if 'errortext' in res:
+                    self.module.fail_json(msg="Failed: '%s'" % policy['errortext'])
+        return policy
+
+    def get_result(self, policy):
+        super(AnsibleCloudStackSnapshotPolicy, self).get_result(policy)
+        if policy and 'intervaltype' in policy:
+            for key, value in self.interval_types.items():
+                if value == policy['intervaltype']:
+                    self.result['interval_type'] = key
+                    break
+        volume = self.get_volume()
+        if volume:
+            volume_results = {
+                'volume':   volume.get('name'),
+                'zone':     volume.get('zonename'),
+                'project':  volume.get('project'),
+                'account':  volume.get('account'),
+                'domain':   volume.get('domain'),
+            }
+            self.result.update(volume_results)
+        return self.result
+
+
+def main():
+    argument_spec = cs_argument_spec()
+    argument_spec.update(dict(
+        volume=dict(required=True),
+        interval_type=dict(default='daily', choices=['hourly', 'daily', 'weekly', 'monthly'], aliases=['interval']),
+        schedule=dict(default=None),
+        time_zone=dict(default='UTC', aliases=['timezone']),
+        max_snaps=dict(type='int', default=8, aliases=['max']),
+        state=dict(choices=['present', 'absent'], default='present'),
+        zone=dict(default=None),
+        domain=dict(default=None),
+        account=dict(default=None),
+        project=dict(default=None),
+        poll_async=dict(type='bool', default=True),
+    ))
+
+    module = AnsibleModule(
+        argument_spec=argument_spec,
+        required_together=cs_required_together(),
+        supports_check_mode=True
+    )
+
+    try:
+        acs_snapshot_policy = AnsibleCloudStackSnapshotPolicy(module)
+
+        state = module.params.get('state')
+        if state in ['absent']:
+            policy = acs_snapshot_policy.absent_snapshot_policy()
+        else:
+            policy = acs_snapshot_policy.present_snapshot_policy()
+
+        result = acs_snapshot_policy.get_result(policy)
+
+    except CloudStackException as e:
+        module.fail_json(msg='CloudStackException: %s' % str(e))
+
+    module.exit_json(**result)
+
+# import module snippets
+from ansible.module_utils.basic import *
+
+if __name__ == '__main__':
+    main()