def start(docker_url='unix://var/run/docker.sock',
timeout=CLIENT_TIMEOUT,
tag='salt/engines/docker_events'):
'''
Scan for Docker events and fire events
Example Config
.. code-block:: yaml
engines:
- docker_events:
docker_url: unix://var/run/docker.sock
The config above sets up engines to listen
for events from the Docker daemon and publish
them to the Salt event bus.
'''
if __opts__.get('__role') == 'master':
fire_master = salt.utils.event.get_master_event(
__opts__,
__opts__['sock_dir']).fire_event
else:
fire_master = None
def fire(tag, msg):
'''
How to fire the event
'''
if fire_master:
fire_master(msg, tag)
else:
__salt__['event.send'](tag, msg)
try:
# docker-py 2.0 renamed this client attribute
client = docker.APIClient(base_url=docker_url, timeout=timeout)
except AttributeError:
client = docker.Client(base_url=docker_url, timeout=timeout)
try:
events = client.events()
for event in events:
data = salt.utils.json.loads(event.decode(__salt_system_encoding__, errors='replace'))
# https://github.com/docker/cli/blob/master/cli/command/system/events.go#L109
# https://github.com/docker/engine-api/blob/master/types/events/events.go
# Each output includes the event type, actor id, name and action.
# status field can be ommited
if data['Action']:
fire('{0}/{1}'.format(tag, data['Action']), data)
else:
fire('{0}/{1}'.format(tag, data['status']), data)
except Exception:
traceback.print_exc()
def start(
docker_url="unix://var/run/docker.sock",
timeout=CLIENT_TIMEOUT,
tag="salt/engines/docker_events",
filters=None,
):
"""
Scan for Docker events and fire events
Example Config
.. code-block:: yaml
engines:
- docker_events:
docker_url: unix://var/run/docker.sock
filters:
event:
- start
- stop
- die
- oom
The config above sets up engines to listen
for events from the Docker daemon and publish
them to the Salt event bus.
For filter reference, see https://docs.docker.com/engine/reference/commandline/events/
"""
if __opts__.get("__role") == "master":
fire_master = salt.utils.event.get_master_event(
__opts__, __opts__["sock_dir"]).fire_event
else:
fire_master = None
def fire(tag, msg):
"""
How to fire the event
"""
if fire_master:
fire_master(msg, tag)
else:
__salt__["event.send"](tag, msg)
try:
# docker-py 2.0 renamed this client attribute
client = docker.APIClient(base_url=docker_url, timeout=timeout)
except AttributeError:
# pylint: disable=not-callable
client = docker.Client(base_url=docker_url, timeout=timeout)
# pylint: enable=not-callable
try:
events = client.events(filters=filters)
for event in events:
data = salt.utils.json.loads(
event.decode(__salt_system_encoding__, errors="replace"))
# https://github.com/docker/cli/blob/master/cli/command/system/events.go#L109
# https://github.com/docker/engine-api/blob/master/types/events/events.go
# Each output includes the event type, actor id, name and action.
# status field can be ommited
if data["Action"]:
fire("{}/{}".format(tag, data["Action"]), data)
else:
fire("{}/{}".format(tag, data["status"]), data)
except Exception: # pylint: disable=broad-except
traceback.print_exc()