homeserver/ansible_collections/community/general/plugins/modules/cloud/smartos/imgadm.py

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#!/usr/bin/python
# -*- coding: utf-8 -*-
# (c) 2016, 2017 Jasper Lievisse Adriaanse <j@jasper.la>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
DOCUMENTATION = '''
---
module: imgadm
short_description: Manage SmartOS images
description:
- Manage SmartOS virtual machine images through imgadm(1M)
author: Jasper Lievisse Adriaanse (@jasperla)
options:
force:
required: false
type: bool
description:
- Force a given operation (where supported by imgadm(1M)).
pool:
required: false
default: zones
description:
- zpool to import to or delete images from.
type: str
source:
required: false
description:
- URI for the image source.
type: str
state:
required: true
choices: [ present, absent, deleted, imported, updated, vacuumed ]
description:
- State the object operated on should be in. C(imported) is an alias for
for C(present) and C(deleted) for C(absent). When set to C(vacuumed)
and C(uuid) to C(*), it will remove all unused images.
type: str
type:
required: false
choices: [ imgapi, docker, dsapi ]
default: imgapi
description:
- Type for image sources.
type: str
uuid:
required: false
description:
- Image UUID. Can either be a full UUID or C(*) for all images.
type: str
requirements:
- python >= 2.6
'''
EXAMPLES = '''
- name: Import an image
community.general.imgadm:
uuid: '70e3ae72-96b6-11e6-9056-9737fd4d0764'
state: imported
- name: Delete an image
community.general.imgadm:
uuid: '70e3ae72-96b6-11e6-9056-9737fd4d0764'
state: deleted
- name: Update all images
community.general.imgadm:
uuid: '*'
state: updated
- name: Update a single image
community.general.imgadm:
uuid: '70e3ae72-96b6-11e6-9056-9737fd4d0764'
state: updated
- name: Add a source
community.general.imgadm:
source: 'https://datasets.project-fifo.net'
state: present
- name: Add a Docker source
community.general.imgadm:
source: 'https://docker.io'
type: docker
state: present
- name: Remove a source
community.general.imgadm:
source: 'https://docker.io'
state: absent
'''
RETURN = '''
source:
description: Source that is managed.
returned: When not managing an image.
type: str
sample: https://datasets.project-fifo.net
uuid:
description: UUID for an image operated on.
returned: When not managing an image source.
type: str
sample: 70e3ae72-96b6-11e6-9056-9737fd4d0764
state:
description: State of the target, after execution.
returned: success
type: str
sample: 'present'
'''
import re
from ansible.module_utils.basic import AnsibleModule
# Shortcut for the imgadm(1M) command. While imgadm(1M) supports a
# -E option to return any errors in JSON, the generated JSON does not play well
# with the JSON parsers of Python. The returned message contains '\n' as part of
# the stacktrace, which breaks the parsers.
class Imgadm(object):
def __init__(self, module):
self.module = module
self.params = module.params
self.cmd = module.get_bin_path('imgadm', required=True)
self.changed = False
self.uuid = module.params['uuid']
# Since there are a number of (natural) aliases, prevent having to look
# them up everytime we operate on `state`.
if self.params['state'] in ['present', 'imported', 'updated']:
self.present = True
else:
self.present = False
# Perform basic UUID validation upfront.
if self.uuid and self.uuid != '*':
if not re.match('^[0-9a-f]{8}-([0-9a-f]{4}-){3}[0-9a-f]{12}$', self.uuid, re.IGNORECASE):
module.fail_json(msg='Provided value for uuid option is not a valid UUID.')
# Helper method to massage stderr
def errmsg(self, stderr):
match = re.match(r'^imgadm .*?: error \(\w+\): (.*): .*', stderr)
if match:
return match.groups()[0]
else:
return 'Unexpected failure'
def update_images(self):
if self.uuid == '*':
cmd = '{0} update'.format(self.cmd)
else:
cmd = '{0} update {1}'.format(self.cmd, self.uuid)
(rc, stdout, stderr) = self.module.run_command(cmd)
if rc != 0:
self.module.fail_json(msg='Failed to update images: {0}'.format(self.errmsg(stderr)))
# There is no feedback from imgadm(1M) to determine if anything
# was actually changed. So treat this as an 'always-changes' operation.
# Note that 'imgadm -v' produces unparseable JSON...
self.changed = True
def manage_sources(self):
force = self.params['force']
source = self.params['source']
imgtype = self.params['type']
cmd = '{0} sources'.format(self.cmd)
if force:
cmd += ' -f'
if self.present:
cmd = '{0} -a {1} -t {2}'.format(cmd, source, imgtype)
(rc, stdout, stderr) = self.module.run_command(cmd)
if rc != 0:
self.module.fail_json(msg='Failed to add source: {0}'.format(self.errmsg(stderr)))
# Check the various responses.
# Note that trying to add a source with the wrong type is handled
# above as it results in a non-zero status.
regex = 'Already have "{0}" image source "{1}", no change'.format(imgtype, source)
if re.match(regex, stdout):
self.changed = False
regex = 'Added "%s" image source "%s"' % (imgtype, source)
if re.match(regex, stdout):
self.changed = True
else:
# Type is ignored by imgadm(1M) here
cmd += ' -d %s' % source
(rc, stdout, stderr) = self.module.run_command(cmd)
if rc != 0:
self.module.fail_json(msg='Failed to remove source: {0}'.format(self.errmsg(stderr)))
regex = 'Do not have image source "%s", no change' % source
if re.match(regex, stdout):
self.changed = False
regex = 'Deleted ".*" image source "%s"' % source
if re.match(regex, stdout):
self.changed = True
def manage_images(self):
pool = self.params['pool']
state = self.params['state']
if state == 'vacuumed':
# Unconditionally pass '--force', otherwise we're prompted with 'y/N'
cmd = '{0} vacuum -f'.format(self.cmd)
(rc, stdout, stderr) = self.module.run_command(cmd)
if rc != 0:
self.module.fail_json(msg='Failed to vacuum images: {0}'.format(self.errmsg(stderr)))
else:
if stdout == '':
self.changed = False
else:
self.changed = True
if self.present:
cmd = '{0} import -P {1} -q {2}'.format(self.cmd, pool, self.uuid)
(rc, stdout, stderr) = self.module.run_command(cmd)
if rc != 0:
self.module.fail_json(msg='Failed to import image: {0}'.format(self.errmsg(stderr)))
regex = r'Image {0} \(.*\) is already installed, skipping'.format(self.uuid)
if re.match(regex, stdout):
self.changed = False
regex = '.*ActiveImageNotFound.*'
if re.match(regex, stderr):
self.changed = False
regex = 'Imported image {0}.*'.format(self.uuid)
if re.match(regex, stdout.splitlines()[-1]):
self.changed = True
else:
cmd = '{0} delete -P {1} {2}'.format(self.cmd, pool, self.uuid)
(rc, stdout, stderr) = self.module.run_command(cmd)
regex = '.*ImageNotInstalled.*'
if re.match(regex, stderr):
# Even if the 'rc' was non-zero (3), we handled the situation
# in order to determine if there was a change.
self.changed = False
regex = 'Deleted image {0}'.format(self.uuid)
if re.match(regex, stdout):
self.changed = True
def main():
module = AnsibleModule(
argument_spec=dict(
force=dict(type='bool'),
pool=dict(default='zones'),
source=dict(),
state=dict(required=True, choices=['present', 'absent', 'deleted', 'imported', 'updated', 'vacuumed']),
type=dict(default='imgapi', choices=['imgapi', 'docker', 'dsapi']),
uuid=dict()
),
# This module relies largely on imgadm(1M) to enforce idempotency, which does not
# provide a "noop" (or equivalent) mode to do a dry-run.
supports_check_mode=False,
)
imgadm = Imgadm(module)
uuid = module.params['uuid']
source = module.params['source']
state = module.params['state']
result = {'state': state}
# Either manage sources or images.
if source:
result['source'] = source
imgadm.manage_sources()
else:
result['uuid'] = uuid
if state == 'updated':
imgadm.update_images()
else:
# Make sure operate on a single image for the following actions
if (uuid == '*') and (state != 'vacuumed'):
module.fail_json(msg='Can only specify uuid as "*" when updating image(s)')
imgadm.manage_images()
result['changed'] = imgadm.changed
module.exit_json(**result)
if __name__ == '__main__':
main()