def test_topological_sorting(self):
graph = {
'D': ['C', 'G'],
'E': ['A', 'D'],
'A': [],
'B': ['A'],
'C': ['A'],
'G': []
}
order = topological_sorting(graph)
self.assertEqual(order, ['A', 'B', 'C', 'G', 'D', 'E'])
def test_topological_sorting(self):
graph = {
'D': ['C', 'G'],
'E': ['A', 'D'],
'A': [],
'B': ['A'],
'C': ['A'],
'G': []
}
order = topological_sorting(graph)
self.assertEqual(order, ['A', 'B', 'C', 'G', 'D', 'E'])
def create_and_start_new_containers(self):
"""Create containers in the right order
"""
logger.info(u'Started containers creation')
graph = self.build_dependencies_graph(self.new_release_containers)
logger.debug(u'Built dependencies graph %s', graph)
containers_to_creation = utils.topological_sorting(graph)
logger.debug(u'Resolved creation order %s', containers_to_creation)
for container_id in containers_to_creation:
container = self.container_by_id(container_id)
logger.debug(u'Start container %s', container)
links = self.get_container_links(container)
created_container = self.create_container(
container['image_name'],
name=container.get('container_name'),
volumes=container.get('volumes'),
ports=container.get('ports'),
detach=False)
volumes_from = []
for container_id in container.get('volumes_from', []):
volume_container = self.container_by_id(container_id)
volumes_from.append(volume_container['container_name'])
# NOTE(ikalnitsky):
# Conflicting options: --net=host can't be used with links.
# Still, we need links at least for resolving containers
# start order.
if container.get('network_mode') == 'host':
links = None
self.start_container(
created_container,
port_bindings=container.get('port_bindings'),
links=links,
volumes_from=volumes_from,
binds=container.get('binds'),
network_mode=container.get('network_mode'),
privileged=container.get('privileged', False))
if container.get('after_container_creation_command'):
self.run_after_container_creation_command(container)
if container.get('supervisor_config'):
self.start_service_under_supervisor(
self.make_service_name(container['id']))
def create_and_start_new_containers(self):
"""Create containers in the right order
"""
logger.info(u'Started containers creation')
graph = self.build_dependencies_graph(self.new_release_containers)
logger.debug(u'Built dependencies graph %s', graph)
containers_to_creation = utils.topological_sorting(graph)
logger.debug(u'Resolved creation order %s', containers_to_creation)
for container_id in containers_to_creation:
container = self.container_by_id(container_id)
logger.debug(u'Start container %s', container)
links = self.get_container_links(container)
created_container = self.create_container(
container['image_name'],
name=container.get('container_name'),
volumes=container.get('volumes'),
ports=container.get('ports'),
detach=False)
volumes_from = []
for container_id in container.get('volumes_from', []):
volume_container = self.container_by_id(container_id)
volumes_from.append(volume_container['container_name'])
# NOTE(ikalnitsky):
# Conflicting options: --net=host can't be used with links.
# Still, we need links at least for resolving containers
# start order.
if container.get('network_mode') == 'host':
links = None
self.start_container(created_container,
port_bindings=container.get('port_bindings'),
links=links,
volumes_from=volumes_from,
binds=container.get('binds'),
network_mode=container.get('network_mode'),
privileged=container.get('privileged', False))
if container.get('after_container_creation_command'):
self.run_after_container_creation_command(container)
def create_and_start_new_containers(self):
"""Create containers in the right order
"""
logger.info(u'Started containers creation')
graph = self.build_dependencies_graph(self.new_release_containers)
logger.debug(u'Built dependencies graph {0}'.format(graph))
containers_to_creation = utils.topological_sorting(graph)
logger.debug(u'Resolved creation order {0}'.format(
containers_to_creation))
for container_id in containers_to_creation:
container = self.container_by_id(container_id)
logger.debug(u'Start container {0}'.format(container))
links = self.get_container_links(container)
created_container = self.create_container(
container['image_name'],
name=container.get('container_name'),
volumes=container.get('volumes'),
ports=container.get('ports'),
detach=False)
volumes_from = []
for container_id in container.get('volumes_from', []):
volume_container = self.container_by_id(container_id)
volumes_from.append(volume_container['container_name'])
self.start_container(
created_container,
port_bindings=container.get('port_bindings'),
links=links,
volumes_from=volumes_from,
binds=container.get('binds'),
privileged=container.get('privileged', False))
if container.get('after_container_creation_command'):
self.run_after_container_creation_command(container)
if container.get('supervisor_config'):
self.start_service_under_supervisor(
self.make_service_name(container['id']))
self.clean_iptables_rules(container)
