def try_restart_on_exited_containers():
docker = get_docker_client()
restarted_instances = []
# 'exited': 0 throws exception, 'exited': '0' does not work.
# Because of this I have felt forced to use regular expressions :-(
pattern = re.compile(r"Exited [(](\d+)[)]")
for container in docker.containers(filters={'status': 'exited'}):
# Ignore containers not created from image 'packettracer'
if container.get('Image') == 'packettracer':
match = pattern.match(container.get('Status'))
if match: # Stopped containers only
container_id = container.get('Id')
instance = Instance.get_by_docker_id(container_id)
if instance:
if match.group(1) == '0':
# Restart stopped containers (which exited successfully)
instance.mark_starting()
try:
logger.info('Restarting %s.' % instance)
docker.start(container=container_id)
wait_for_ready_container.s(instance.id).delay()
restarted_instances.append(instance.id)
except APIError as ae:
logger.error('Error restarting container.')
logger.error('Docker API exception. %s.' % ae)
instance.mark_error()
else:
# TODO Check more thoroughly if containers with other
# type of exit errors could be restarted too.
instance.mark_error()
return restarted_instances
def try_restart_on_exited_containers():
docker = get_docker_client()
restarted_instances = []
# 'exited': 0 throws exception, 'exited': '0' does not work.
# Because of this I have felt forced to use regular expressions :-(
pattern = re.compile(r"Exited [(](\d+)[)]")
for container in docker.containers(filters={'status': 'exited'}):
# Ignore containers not created from image 'packettracer'
if container.get('Image')=='packettracer':
match = pattern.match(container.get('Status'))
if match: # Stopped containers only
container_id = container.get('Id')
instance = Instance.get_by_docker_id(container_id)
if instance:
if match.group(1)=='0':
# Restart stopped containers (which exited successfully)
instance.mark_starting()
try:
logger.info('Restarting %s.' % instance)
docker.start(container=container_id)
wait_for_ready_container.s(instance.id).delay()
restarted_instances.append(instance.id)
except APIError as ae:
logger.error('Error restarting container.')
logger.error('Docker API exception. %s.' % ae)
instance.mark_error()
else:
# TODO Check more thoroughly if containers with other
# type of exit errors could be restarted too.
instance.mark_error()
return restarted_instances
