def parse_thing(s):
if s in self.containers:
return self.containers[s].service
if s in self.services:
return self.services[s]
raise exceptions.OrchestrationException(
'{} is neither a service nor a container!'.format(s))
def __init__(self, config):
self._config = config
# Create container ships.
self.ships = dict(
(k,
entities.Ship(k,
v['ip'],
docker_port=v.get('docker_port', entities.Ship.
DEFAULT_DOCKER_PORT),
ssh_tunnel=v.get('ssh_tunnel'),
timeout=v.get('timeout')))
for k, v in self._config['ships'].items())
# Register defined private Docker registries authentications
self.registries = self._config.get('registries') or {}
for name, registry in self.registries.items():
if 'username' not in registry or 'password' not in registry:
raise exceptions.OrchestrationException(
'Incomplete registry auth data for {}!'.format(name))
# Build all the entities.
self.services = {}
self.containers = {}
for kind, service in self._config['services'].items():
self.services[kind] = entities.Service(kind, service['image'],
service.get('env', {}))
for name, instance in service['instances'].items():
self.containers[name] = \
entities.Container(name,
self.ships[instance['ship']],
self.services[kind],
instance,
self._config['name'])
# Resolve dependencies between services.
for kind, service in self._config['services'].items():
for dependency in service.get('requires', []):
self.services[kind].add_dependency(self.services[dependency])
self.services[dependency].add_dependent(self.services[kind])
for wants_info in service.get('wants_info', []):
self.services[kind].add_wants_info(self.services[wants_info])
# Provide link environment variables to each container of each service
# that requires it or wants it.
for service in self.services.values():
for container in service.containers:
# Containers always know about their peers in the same service.
container.env.update(service.get_link_variables(True))
# Containers also get links from the service's dependencies.
for dependency in service.requires.union(service.wants_info):
container.env.update(dependency.get_link_variables())
# Instantiate audit bindings
self.auditor = audit.AuditorFactory.from_config(
self._config.get('audit', []))
def __init__(self, config):
self._config = config
if 'name' not in config:
raise exceptions.EnvironmentConfigurationException(
'Environment name is missing')
self.ships = (shipproviders.ShipsProviderFactory
.from_config(config).ships())
# Register defined private Docker registries authentications
self.registries = self._config.get('registries') or {}
for name, registry in self.registries.items():
if 'username' not in registry or 'password' not in registry:
raise exceptions.OrchestrationException(
'Incomplete registry auth data for {}!'.format(name))
# Build all the entities.
self.services = {}
self.containers = {}
for kind, service in self._config.get('services', {}).items():
self.services[kind] = entities.Service(kind, service['image'],
self.schema,
service.get('env', {}))
for name, instance in service['instances'].items():
self.containers[name] = \
entities.Container(name,
self.ships[instance['ship']],
self.services[kind],
instance,
self.schema,
self.env_name)
# Resolve dependencies between services.
for kind, service in self._config.get('services', {}).items():
for dependency in service.get('requires', []):
self.services[kind].add_dependency(self.services[dependency])
self.services[dependency].add_dependent(self.services[kind])
for wants_info in service.get('wants_info', []):
self.services[kind].add_wants_info(self.services[wants_info])
# Provide link environment variables to each container of each service
# that requires it or wants it.
for service in self.services.values():
for container in service.containers:
# Containers always know about their peers in the same service.
container.env.update(service.get_link_variables(True))
# Containers also get links from the service's dependencies.
for dependency in service.requires.union(service.wants_info):
container.env.update(dependency.get_link_variables())
# Check for host locality and volume conflicts on volumes_from
for container in self.containers.values():
for volumes_from in container.volumes_from:
if volumes_from not in self.containers:
raise exceptions.InvalidVolumeConfigurationException(
'Unknown container {} to get volumes from for {}!'
.format(volumes_from, container.name))
other = self.containers[volumes_from]
if other.ship != container.ship:
raise exceptions.InvalidVolumeConfigurationException(
'{} and {} must be on the same host for '
'volumes_from declaration in {}!'
.format(other.name, container.name,
container.name))
conflicts = container.get_volumes().intersection(
other.get_volumes())
if conflicts:
raise exceptions.InvalidVolumeConfigurationException(
'Volume conflicts between {} and {}: {}!'
.format(container.name, other.name,
', '.join(conflicts)))
# Instantiate audit bindings
self.auditor = audit.AuditorFactory.from_config(
self._config.get('audit', []))
