class DockerVolumeManager(object):
def __init__(self, client):
self.client = client
self.parameters = TaskParameters(client)
self.check_mode = self.client.check_mode
self.results = {u'changed': False, u'actions': []}
self.diff = self.client.module._diff
self.diff_tracker = DifferenceTracker()
self.diff_result = dict()
self.existing_volume = self.get_existing_volume()
state = self.parameters.state
if state == 'present':
self.present()
elif state == 'absent':
self.absent()
if self.diff or self.check_mode or self.parameters.debug:
if self.diff:
self.diff_result['before'], self.diff_result[
'after'] = self.diff_tracker.get_before_after()
self.results['diff'] = self.diff_result
def get_existing_volume(self):
try:
volumes = self.client.volumes()
except APIError as e:
self.client.fail(text_type(e))
if volumes[u'Volumes'] is None:
return None
for volume in volumes[u'Volumes']:
if volume['Name'] == self.parameters.volume_name:
return volume
return None
def has_different_config(self):
"""
Return the list of differences between the current parameters and the existing volume.
:return: list of options that differ
"""
differences = DifferenceTracker()
if self.parameters.driver and self.parameters.driver != self.existing_volume[
'Driver']:
differences.add('driver',
parameter=self.parameters.driver,
active=self.existing_volume['Driver'])
if self.parameters.driver_options:
if not self.existing_volume.get('Options'):
differences.add('driver_options',
parameter=self.parameters.driver_options,
active=self.existing_volume.get('Options'))
else:
for key, value in iteritems(self.parameters.driver_options):
if (not self.existing_volume['Options'].get(key)
or value != self.existing_volume['Options'][key]):
differences.add(
'driver_options.%s' % key,
parameter=value,
active=self.existing_volume['Options'].get(key))
if self.parameters.labels:
existing_labels = self.existing_volume.get('Labels', {})
for label in self.parameters.labels:
if existing_labels.get(label) != self.parameters.labels.get(
label):
differences.add(
'labels.%s' % label,
parameter=self.parameters.labels.get(label),
active=existing_labels.get(label))
return differences
def create_volume(self):
if not self.existing_volume:
if not self.check_mode:
try:
params = dict(
driver=self.parameters.driver,
driver_opts=self.parameters.driver_options,
)
if self.parameters.labels is not None:
params['labels'] = self.parameters.labels
resp = self.client.create_volume(
self.parameters.volume_name, **params)
self.existing_volume = self.client.inspect_volume(
resp['Name'])
except APIError as e:
self.client.fail(text_type(e))
self.results['actions'].append(
"Created volume %s with driver %s" %
(self.parameters.volume_name, self.parameters.driver))
self.results['changed'] = True
def remove_volume(self):
if self.existing_volume:
if not self.check_mode:
try:
self.client.remove_volume(self.parameters.volume_name)
except APIError as e:
self.client.fail(text_type(e))
self.results['actions'].append("Removed volume %s" %
self.parameters.volume_name)
self.results['changed'] = True
def present(self):
differences = DifferenceTracker()
if self.existing_volume:
differences = self.has_different_config()
self.diff_tracker.add('exists',
parameter=True,
active=self.existing_volume is not None)
if (not differences.empty and self.parameters.recreate
== 'options-changed') or self.parameters.recreate == 'always':
self.remove_volume()
self.existing_volume = None
self.create_volume()
if self.diff or self.check_mode or self.parameters.debug:
self.diff_result[
'differences'] = differences.get_legacy_docker_diffs()
self.diff_tracker.merge(differences)
if not self.check_mode and not self.parameters.debug:
self.results.pop('actions')
volume_facts = self.get_existing_volume()
self.results['ansible_facts'] = {u'docker_volume': volume_facts}
self.results['volume'] = volume_facts
def absent(self):
self.diff_tracker.add('exists',
parameter=False,
active=self.existing_volume is not None)
self.remove_volume()
class DockerNetworkManager(object):
def __init__(self, client):
self.client = client
self.parameters = TaskParameters(client)
self.check_mode = self.client.check_mode
self.results = {u'changed': False, u'actions': []}
self.diff = self.client.module._diff
self.diff_tracker = DifferenceTracker()
self.diff_result = dict()
self.existing_network = self.get_existing_network()
if not self.parameters.connected and self.existing_network:
self.parameters.connected = container_names_in_network(
self.existing_network)
if (self.parameters.ipam_options['subnet']
or self.parameters.ipam_options['iprange']
or self.parameters.ipam_options['gateway']
or self.parameters.ipam_options['aux_addresses']):
self.parameters.ipam_config = [self.parameters.ipam_options]
if self.parameters.driver_options:
self.parameters.driver_options = clean_dict_booleans_for_docker_api(
self.parameters.driver_options)
state = self.parameters.state
if state == 'present':
self.present()
elif state == 'absent':
self.absent()
if self.diff or self.check_mode or self.parameters.debug:
if self.diff:
self.diff_result['before'], self.diff_result[
'after'] = self.diff_tracker.get_before_after()
self.results['diff'] = self.diff_result
def get_existing_network(self):
return self.client.get_network(name=self.parameters.network_name)
def has_different_config(self, net):
'''
Evaluates an existing network and returns a tuple containing a boolean
indicating if the configuration is different and a list of differences.
:param net: the inspection output for an existing network
:return: (bool, list)
'''
differences = DifferenceTracker()
if self.parameters.driver and self.parameters.driver != net['Driver']:
differences.add('driver',
parameter=self.parameters.driver,
active=net['Driver'])
if self.parameters.driver_options:
if not net.get('Options'):
differences.add('driver_options',
parameter=self.parameters.driver_options,
active=net.get('Options'))
else:
for key, value in self.parameters.driver_options.items():
if not (key
in net['Options']) or value != net['Options'][key]:
differences.add('driver_options.%s' % key,
parameter=value,
active=net['Options'].get(key))
if self.parameters.ipam_driver:
if not net.get('IPAM') or net['IPAM'][
'Driver'] != self.parameters.ipam_driver:
differences.add('ipam_driver',
parameter=self.parameters.ipam_driver,
active=net.get('IPAM'))
if self.parameters.ipam_config is not None and self.parameters.ipam_config:
if not net.get('IPAM') or not net['IPAM']['Config']:
differences.add('ipam_config',
parameter=self.parameters.ipam_config,
active=net.get('IPAM', {}).get('Config'))
else:
for idx, ipam_config in enumerate(self.parameters.ipam_config):
net_config = dict()
try:
ip_version = get_ip_version(ipam_config['subnet'])
for net_ipam_config in net['IPAM']['Config']:
if ip_version == get_ip_version(
net_ipam_config['Subnet']):
net_config = net_ipam_config
except ValueError as e:
self.client.fail(str(e))
for key, value in ipam_config.items():
if value is None:
# due to recursive argument_spec, all keys are always present
# (but have default value None if not specified)
continue
camelkey = None
for net_key in net_config:
if key == net_key.lower():
camelkey = net_key
break
if not camelkey or net_config.get(camelkey) != value:
differences.add('ipam_config[%s].%s' % (idx, key),
parameter=value,
active=net_config.get(camelkey)
if camelkey else None)
if self.parameters.enable_ipv6 is not None and self.parameters.enable_ipv6 != net.get(
'EnableIPv6', False):
differences.add('enable_ipv6',
parameter=self.parameters.enable_ipv6,
active=net.get('EnableIPv6', False))
if self.parameters.internal is not None and self.parameters.internal != net.get(
'Internal', False):
differences.add('internal',
parameter=self.parameters.internal,
active=net.get('Internal'))
if self.parameters.scope is not None and self.parameters.scope != net.get(
'Scope'):
differences.add('scope',
parameter=self.parameters.scope,
active=net.get('Scope'))
if self.parameters.attachable is not None and self.parameters.attachable != net.get(
'Attachable', False):
differences.add('attachable',
parameter=self.parameters.attachable,
active=net.get('Attachable'))
if self.parameters.labels:
if not net.get('Labels'):
differences.add('labels',
parameter=self.parameters.labels,
active=net.get('Labels'))
else:
for key, value in self.parameters.labels.items():
if not (key
in net['Labels']) or value != net['Labels'][key]:
differences.add('labels.%s' % key,
parameter=value,
active=net['Labels'].get(key))
return not differences.empty, differences
def create_network(self):
if not self.existing_network:
params = dict(
driver=self.parameters.driver,
options=self.parameters.driver_options,
)
ipam_pools = []
if self.parameters.ipam_config:
for ipam_pool in self.parameters.ipam_config:
if LooseVersion(docker_version) >= LooseVersion('2.0.0'):
ipam_pools.append(IPAMPool(**ipam_pool))
else:
ipam_pools.append(utils.create_ipam_pool(**ipam_pool))
if self.parameters.ipam_driver or ipam_pools:
# Only add ipam parameter if a driver was specified or if IPAM parameters
# were specified. Leaving this parameter away can significantly speed up
# creation; on my machine creation with this option needs ~15 seconds,
# and without just a few seconds.
if LooseVersion(docker_version) >= LooseVersion('2.0.0'):
params['ipam'] = IPAMConfig(
driver=self.parameters.ipam_driver,
pool_configs=ipam_pools)
else:
params['ipam'] = utils.create_ipam_config(
driver=self.parameters.ipam_driver,
pool_configs=ipam_pools)
if self.parameters.enable_ipv6 is not None:
params['enable_ipv6'] = self.parameters.enable_ipv6
if self.parameters.internal is not None:
params['internal'] = self.parameters.internal
if self.parameters.scope is not None:
params['scope'] = self.parameters.scope
if self.parameters.attachable is not None:
params['attachable'] = self.parameters.attachable
if self.parameters.labels:
params['labels'] = self.parameters.labels
if not self.check_mode:
resp = self.client.create_network(self.parameters.network_name,
**params)
self.existing_network = self.client.get_network(id=resp['Id'])
self.results['actions'].append(
"Created network %s with driver %s" %
(self.parameters.network_name, self.parameters.driver))
self.results['changed'] = True
def remove_network(self):
if self.existing_network:
self.disconnect_all_containers()
if not self.check_mode:
self.client.remove_network(self.parameters.network_name)
self.results['actions'].append("Removed network %s" %
(self.parameters.network_name, ))
self.results['changed'] = True
def is_container_connected(self, container_name):
return container_name in container_names_in_network(
self.existing_network)
def connect_containers(self):
for name in self.parameters.connected:
if not self.is_container_connected(name):
if not self.check_mode:
self.client.connect_container_to_network(
name, self.parameters.network_name)
self.results['actions'].append("Connected container %s" %
(name, ))
self.results['changed'] = True
self.diff_tracker.add('connected.{0}'.format(name),
parameter=True,
active=False)
def disconnect_missing(self):
if not self.existing_network:
return
containers = self.existing_network['Containers']
if not containers:
return
for c in containers.values():
name = c['Name']
if name not in self.parameters.connected:
self.disconnect_container(name)
def disconnect_all_containers(self):
containers = self.client.get_network(
name=self.parameters.network_name)['Containers']
if not containers:
return
for cont in containers.values():
self.disconnect_container(cont['Name'])
def disconnect_container(self, container_name):
if not self.check_mode:
self.client.disconnect_container_from_network(
container_name, self.parameters.network_name)
self.results['actions'].append("Disconnected container %s" %
(container_name, ))
self.results['changed'] = True
self.diff_tracker.add('connected.{0}'.format(container_name),
parameter=False,
active=True)
def present(self):
different = False
differences = DifferenceTracker()
if self.existing_network:
different, differences = self.has_different_config(
self.existing_network)
self.diff_tracker.add('exists',
parameter=True,
active=self.existing_network is not None)
if self.parameters.force or different:
self.remove_network()
self.existing_network = None
self.create_network()
self.connect_containers()
if not self.parameters.appends:
self.disconnect_missing()
if self.diff or self.check_mode or self.parameters.debug:
self.diff_result[
'differences'] = differences.get_legacy_docker_diffs()
self.diff_tracker.merge(differences)
if not self.check_mode and not self.parameters.debug:
self.results.pop('actions')
network_facts = self.get_existing_network()
self.results['ansible_facts'] = {u'docker_network': network_facts}
self.results['docker_network'] = network_facts
def absent(self):
self.diff_tracker.add('exists',
parameter=False,
active=self.existing_network is not None)
self.remove_network()
