249 lines
8.7 KiB
Text
249 lines
8.7 KiB
Text
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#!/usr/bin/python
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# Copyright 2013 Google Inc.
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#
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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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DOCUMENTATION = '''
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---
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module: gce_pd
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short_description: utilize GCE persistent disk resources
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description:
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- This module can create and destroy unformatted GCE persistent disks
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U(https://developers.google.com/compute/docs/disks#persistentdisks).
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It also supports attaching and detaching disks from running instances
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but does not support creating boot disks from images or snapshots. The
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'gce' module supports creating instances with boot disks.
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Full install/configuration instructions for the gce* modules can
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be found in the comments of ansible/test/gce_tests.py.
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options:
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detach_only:
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description:
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- do not destroy the disk, merely detach it from an instance
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required: false
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default: "no"
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choices: ["yes", "no"]
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aliases: []
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instance_name:
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description:
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- instance name if you wish to attach or detach the disk
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required: false
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default: null
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aliases: []
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mode:
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description:
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- GCE mount mode of disk, READ_ONLY (default) or READ_WRITE
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required: false
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default: "READ_ONLY"
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choices: ["READ_WRITE", "READ_ONLY"]
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aliases: []
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name:
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description:
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- name of the disk
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required: true
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default: null
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aliases: []
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size_gb:
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description:
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- whole integer size of disk (in GB) to create, default is 10 GB
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required: false
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default: 10
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aliases: []
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state:
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description:
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- desired state of the persistent disk
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required: false
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default: "present"
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choices: ["active", "present", "absent", "deleted"]
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aliases: []
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zone:
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description:
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- zone in which to create the disk
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required: false
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default: "us-central1-b"
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aliases: []
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requirements: [ "libcloud" ]
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author: Eric Johnson <erjohnso@google.com>
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'''
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EXAMPLES = '''
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# Simple attachment action to an existing instance
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- local_action:
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module: gce_pd
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instance_name: notlocalhost
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size_gb: 5
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name: pd
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'''
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import sys
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try:
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from libcloud.compute.types import Provider
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from libcloud.compute.providers import get_driver
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from libcloud.common.google import GoogleBaseError, QuotaExceededError, \
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ResourceExistsError, ResourceNotFoundError, ResourceInUseError
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_ = Provider.GCE
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except ImportError:
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print("failed=True " + \
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"msg='libcloud with GCE support is required for this module.'")
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sys.exit(1)
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# Load in the libcloud secrets file
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try:
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import secrets
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except ImportError:
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secrets = None
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ARGS = getattr(secrets, 'GCE_PARAMS', ())
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KWARGS = getattr(secrets, 'GCE_KEYWORD_PARAMS', {})
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if not ARGS or not KWARGS.has_key('project'):
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print("failed=True " + \
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"msg='Missing GCE connection parameters in libcloud secrets file.'")
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sys.exit(1)
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def unexpected_error_msg(error):
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msg='Unexpected response: HTTP return_code['
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msg+='%s], API error code[%s] and message: %s' % (
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error.http_code, error.code, str(error.value))
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return msg
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def main():
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module = AnsibleModule(
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argument_spec = dict(
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detach_only = dict(choice=BOOLEANS),
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instance_name = dict(),
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mode = dict(default='READ_ONLY',
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choices=['READ_WRITE', 'READ_ONLY']),
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name = dict(required=True),
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size_gb = dict(default=10),
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state = dict(default='present'),
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zone = dict(default='us-central1-b'),
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)
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)
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detach_only = module.params.get('detach_only')
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instance_name = module.params.get('instance_name')
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mode = module.params.get('mode')
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name = module.params.get('name')
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size_gb = module.params.get('size_gb')
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state = module.params.get('state')
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zone = module.params.get('zone')
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if detach_only and not instance_name:
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module.fail_json(
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msg='Must specify an instance name when detaching a disk',
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changed=False)
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try:
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gce = get_driver(Provider.GCE)(*ARGS, datacenter=zone, **KWARGS)
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except Exception as e:
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module.fail_json(msg=unexpected_error_msg(e), changed=False)
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disk = inst = None
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changed = is_attached = False
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json_output = { 'name': name, 'zone': zone, 'state': state }
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if detach_only:
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json_output['detach_only'] = True
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json_output['detached_from_instance'] = instance_name
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if instance_name:
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# user wants to attach/detach from an existing instance
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try:
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inst = gce.ex_get_node(instance_name, zone)
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# is the disk attached?
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for d in inst.extra['disks']:
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if d['deviceName'] == name:
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is_attached = True
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json_output['attached_mode'] = d['mode']
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json_output['attached_to_instance'] = inst.name
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except:
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pass
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# find disk if it already exists
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try:
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disk = gce.ex_get_volume(name)
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json_output['size_gb'] = int(disk.size)
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except ResourceNotFoundError:
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pass
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except Exception as e:
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module.fail_json(msg=unexpected_error_msg(e), changed=False)
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# user wants a disk to exist. If "instance_name" is supplied the user
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# also wants it attached
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if state in ['active', 'present']:
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if not size_gb:
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module.fail_json(msg="Must supply a size_gb", changed=False)
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try:
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size_gb = int(round(float(size_gb)))
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if size_gb < 1: raise Exception
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except:
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module.fail_json(msg="Must supply a size_gb larger than 1 GB",
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changed=False)
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if instance_name and inst is None:
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module.fail_json(msg='Instance %s does not exist in zone %s' % (
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instance_name, zone), changed=False)
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if not disk:
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try:
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disk = gce.create_volume(size_gb, name, location=zone)
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except ResourceExistsError:
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pass
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except QuotaExceededError:
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module.fail_json(msg='Requested disk size exceeds quota',
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changed=False)
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except Exception as e:
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module.fail_json(msg=unexpected_error_msg(e), changed=False)
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json_output['size_gb'] = size_gb
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changed = True
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if inst and not is_attached:
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try:
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gce.attach_volume(inst, disk, device=name, ex_mode=mode)
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except Exception as e:
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module.fail_json(msg=unexpected_error_msg(e), changed=False)
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json_output['attached_to_instance'] = inst.name
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json_output['attached_mode'] = mode
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changed = True
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# user wants to delete a disk (or perhaps just detach it).
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if state in ['absent', 'deleted'] and disk:
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if inst and is_attached:
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try:
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gce.detach_volume(disk, ex_node=inst)
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except Exception as e:
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module.fail_json(msg=unexpected_error_msg(e), changed=False)
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changed = True
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if not detach_only:
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try:
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gce.destroy_volume(disk)
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except ResourceInUseError as e:
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module.fail_json(msg=str(e.value), changed=False)
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except Exception as e:
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module.fail_json(msg=unexpected_error_msg(e), changed=False)
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changed = True
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json_output['changed'] = changed
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print json.dumps(json_output)
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sys.exit(0)
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# this is magic, see lib/ansible/module_common.py
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#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
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main()
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