def setup_container_host(host_type, worker_api, timeout=5):
"""
Setup a container host for deploying cluster on it
:param host_type: Docker host type
:param worker_api: Docker daemon url
:param timeout: timeout to wait
:return: True or False
"""
if not worker_api or not worker_api.startswith("tcp://"):
logger.error("Invalid worker_api={}".format(worker_api))
return False
if host_type not in WORKER_TYPES:
logger.error("Invalid host_type={}".format(host_type))
return False
try:
client = Client(base_url=worker_api, version="auto", timeout=timeout)
net_names = [x["Name"] for x in client.networks()]
for cs_type in CONSENSUS_PLUGINS_FABRIC_V1:
net_name = CLUSTER_NETWORK + "_{}".format(cs_type)
if net_name in net_names:
logger.warning(
"Network {} already exists, use it!".format(net_name))
else:
if host_type == WORKER_TYPES[0]: # single
client.create_network(net_name, driver='bridge')
elif host_type == WORKER_TYPES[1]: # swarm
client.create_network(net_name, driver='overlay')
else:
logger.error("No-supported host_type={}".format(host_type))
return False
except Exception as e:
logger.error("Exception happens!")
logger.error(e)
return False
return True
def setup_container_host(host_type, worker_api, timeout=5):
"""
Setup a container host for deploying cluster on it
:param host_type: Docker host type
:param worker_api: Docker daemon url
:param timeout: timeout to wait
:return: True or False
"""
if not worker_api or not worker_api.startswith("tcp://"):
logger.error("Invalid worker_api={}".format(worker_api))
return False
if host_type not in WORKER_TYPES:
logger.error("Invalid host_type={}".format(host_type))
return False
try:
client = Client(base_url=worker_api, version="auto", timeout=timeout)
net_names = [x["Name"] for x in client.networks()]
for cs_type in CONSENSUS_PLUGINS_FABRIC_V1:
net_name = CLUSTER_NETWORK + "_{}".format(cs_type)
if net_name in net_names:
logger.warning("Network {} already exists, use it!".format(
net_name))
else:
if host_type == WORKER_TYPES[0]: # single
client.create_network(net_name, driver='bridge')
elif host_type == WORKER_TYPES[1]: # swarm
client.create_network(net_name, driver='overlay')
else:
logger.error("No-supported host_type={}".format(host_type))
return False
except Exception as e:
logger.error("Exception happens!")
logger.error(e)
return False
return True
def __add_node():
docker_client = APIClient(base_url=TwinHub.DOCKER_CLIENT_URI)
responses = docker_client.build(
dockerfile=TwinHub.DOCKERFILE_PATH,
path=TwinHub.TWIN_DOCKER_SOURCES_DIR,
encoding=TwinHub.DEFAULT_DOCKERFILE_ENCODING,
rm=True,
tag=TwinHub.NODE_IMAGE_TAG)
for msg in responses:
print(msg)
# Creating network if not exists.
network = docker_client.networks(names=[TwinHub.NETWORK_NAME])
if not network:
docker_client.create_network(TwinHub.NETWORK_NAME, driver="bridge")
# Creating new container
TwinHub.NODE_COUNTER += 1
node_name = 'twin_node_{}'.format(TwinHub.NODE_COUNTER)
container = docker_client.create_container(TwinHub.NODE_IMAGE_TAG,
name=node_name,
ports=[5000],
tty=True,
stdin_open=True,
detach=True,
hostname=node_name)
docker_client.start(container['Id'])
docker_client.connect_container_to_network(container=node_name,
net_id=TwinHub.NETWORK_NAME)
return "<html><h1>Hello world</h1></html>"
