def _start_libnetwork_container(libnetwork_image, etcd_envs, etcd_volumes,
etcd_binds, no_pull):
"""
Start the libnetwork driver container.
:param etcd_envs: Etcd environment variables to pass into the container
:param libnetwork_image: The name of the Calico libnetwork driver image to
use. None, if not using libnetwork.
:param etcd_volumes: List of mount_paths for etcd files to mount on the
container
:param etcd_binds: Dictionary of host file and mount file pairs for etcd
files to mount on the container
:param no_pull: Boolean, True to prevent function from pulling the Calico
node libnetwork Docker image.
:return: None
"""
if not no_pull:
# Make sure the required image is pulled before removing the old one.
# This minimizes downtime during upgrade.
_find_or_pull_node_image(libnetwork_image)
try:
docker_client.remove_container("calico-libnetwork", force=True)
except docker.errors.APIError as err:
if err.response.status_code != 404:
raise
environment = ["HOSTNAME=%s" % hostname] + etcd_envs
binds = {
"/run/docker/plugins":
{
"bind": "/run/docker/plugins",
"ro": False
}
}
binds.update(etcd_binds)
host_config = docker_client.create_host_config(
privileged=True, # Needed since the plugin does "ip link" commands.
restart_policy={"Name": "always"},
network_mode="host",
binds=binds)
volumes = ["/run/docker/plugins"] + etcd_volumes
container = docker_client.create_container(
libnetwork_image,
name="calico-libnetwork",
detach=True,
environment=environment,
host_config=host_config,
volumes=volumes)
cid = container["Id"]
docker_client.start(container)
print "Calico libnetwork driver is running with id: %s" % cid
def _start_libnetwork_container(libnetwork_image, etcd_envs, etcd_volumes,
etcd_binds, no_pull):
"""
Start the libnetwork driver container.
:param etcd_envs: Etcd environment variables to pass into the container
:param libnetwork_image: The name of the Calico libnetwork driver image to
use. None, if not using libnetwork.
:param etcd_volumes: List of mount_paths for etcd files to mount on the
container
:param etcd_binds: Dictionary of host file and mount file pairs for etcd
files to mount on the container
:param no_pull: Boolean, True to prevent function from pulling the Calico
node libnetwork Docker image.
:return: None
"""
if not no_pull:
# Make sure the required image is pulled before removing the old one.
# This minimizes downtime during upgrade.
_find_or_pull_node_image(libnetwork_image)
try:
docker_client.remove_container("calico-libnetwork", force=True)
except docker.errors.APIError as err:
if err.response.status_code != 404:
raise
environment = ["HOSTNAME=%s" % hostname] + etcd_envs
binds = {
"/run/docker/plugins": {
"bind": "/run/docker/plugins",
"ro": False
}
}
binds.update(etcd_binds)
host_config = docker_client.create_host_config(
privileged=True, # Needed since the plugin does "ip link" commands.
restart_policy={"Name": "always"},
network_mode="host",
binds=binds)
volumes = ["/run/docker/plugins"] + etcd_volumes
container = docker_client.create_container(libnetwork_image,
name="calico-libnetwork",
detach=True,
environment=environment,
host_config=host_config,
volumes=volumes)
cid = container["Id"]
docker_client.start(container)
print "Calico libnetwork driver is running with id: %s" % cid
def _start_node_container_docker(ip, ip6, as_num, log_dir, node_image, detach,
etcd_envs, etcd_volumes, etcd_binds, no_pull):
"""
Start the main Calico node container.
:param ip: The IPv4 address of the host.
:param ip6: The IPv6 address of the host (or None if not configured)
:param as_num: The AS number for the host
:param log_dir: The log directory to use.
:param node_image: The calico-node image to use.
:param detach: True to run in Docker's "detached" mode, False to run
attached.
:param etcd_envs: Etcd environment variables to pass into the container
:param etcd_volumes: List of mount_paths for etcd files to mount on the
container
:param etcd_binds: Dictionary of host file and mount file pairs for etcd
files to mount on the container
:param no_pull: Boolean, True to prevent function from pulling the Calico
node Docker image.
:return: None.
"""
calico_networking = os.getenv(CALICO_NETWORKING_ENV,
CALICO_NETWORKING_DEFAULT)
no_default_pools = os.getenv(NO_DEFAULT_POOLS_ENV)
if not no_pull:
# Make sure the required image is pulled before removing the old one.
# This minimizes downtime during upgrade.
_find_or_pull_node_image(node_image)
try:
docker_client.remove_container("calico-node", force=True)
except docker.errors.APIError as err:
if err.response.status_code != 404:
raise
environment = [
"HOSTNAME=%s" % hostname,
"IP=%s" % (ip or ""),
"IP6=%s" % (ip6 or ""),
"CALICO_NETWORKING=%s" % calico_networking,
"AS=%s" % (as_num or ""),
"NO_DEFAULT_POOLS=%s" % (no_default_pools or "")
] + etcd_envs
binds = {
log_dir: {
"bind": "/var/log/calico",
"ro": False
},
"/var/run/calico": {
"bind": "/var/run/calico",
"ro": False
},
"/lib/modules": {
"bind": "/lib/modules",
"ro": False
}
}
binds.update(etcd_binds)
host_config = docker_client.create_host_config(
privileged=True,
restart_policy={"Name": "always"},
network_mode="host",
binds=binds)
volumes = ["/var/log/calico", "/var/run/calico", "/lib/modules"
] + etcd_volumes
container = docker_client.create_container(node_image,
name="calico-node",
detach=True,
environment=environment,
host_config=host_config,
volumes=volumes)
cid = container["Id"]
env_string = ""
for an_env in environment:
env_string += " -e " + an_env
vol_string = ""
for a_vol in binds:
vol_string += " -v %s:%s" % (a_vol, binds[a_vol]["bind"])
detach_string = " -d" if detach else ""
print "Running Docker container with the following command:\n"
print "docker run%s --restart=always --net=host --privileged --name=calico-node%s%s %s\n" % \
(detach_string, env_string, vol_string, node_image)
docker_client.start(container)
print "Calico node is running with id: %s" % cid
print "Waiting for successful startup"
_attach_and_stream(container, detach)
def _start_node_container_docker(ip, ip6, as_num, log_dir, node_image, detach, etcd_envs,
etcd_volumes, etcd_binds, no_pull):
"""
Start the main Calico node container.
:param ip: The IPv4 address of the host.
:param ip6: The IPv6 address of the host (or None if not configured)
:param as_num: The AS number for the host
:param log_dir: The log directory to use.
:param node_image: The calico-node image to use.
:param detach: True to run in Docker's "detached" mode, False to run
attached.
:param etcd_envs: Etcd environment variables to pass into the container
:param etcd_volumes: List of mount_paths for etcd files to mount on the
container
:param etcd_binds: Dictionary of host file and mount file pairs for etcd
files to mount on the container
:param no_pull: Boolean, True to prevent function from pulling the Calico
node Docker image.
:return: None.
"""
calico_networking = os.getenv(CALICO_NETWORKING_ENV,
CALICO_NETWORKING_DEFAULT)
no_default_pools = os.getenv(NO_DEFAULT_POOLS_ENV)
if not no_pull:
# Make sure the required image is pulled before removing the old one.
# This minimizes downtime during upgrade.
_find_or_pull_node_image(node_image)
try:
docker_client.remove_container("calico-node", force=True)
except docker.errors.APIError as err:
if err.response.status_code != 404:
raise
environment = [
"HOSTNAME=%s" % hostname,
"IP=%s" % (ip or ""),
"IP6=%s" % (ip6 or ""),
"CALICO_NETWORKING=%s" % calico_networking,
"AS=%s" % (as_num or ""),
"NO_DEFAULT_POOLS=%s" % (no_default_pools or "")
] + etcd_envs
binds = {
log_dir:
{
"bind": "/var/log/calico",
"ro": False
},
"/var/run/calico":
{
"bind": "/var/run/calico",
"ro": False
},
"/lib/modules":
{
"bind": "/lib/modules",
"ro": False
}
}
binds.update(etcd_binds)
host_config = docker_client.create_host_config(
privileged=True,
restart_policy={"Name": "always"},
network_mode="host",
binds=binds)
volumes = ["/var/log/calico", "/var/run/calico", "/lib/modules"] + etcd_volumes
container = docker_client.create_container(
node_image,
name="calico-node",
detach=True,
environment=environment,
host_config=host_config,
volumes=volumes)
cid = container["Id"]
env_string = ""
for an_env in environment:
env_string += " -e " + an_env
vol_string = ""
for a_vol in binds:
vol_string += " -v %s:%s" % (a_vol, binds[a_vol]["bind"])
detach_string = " -d" if detach else ""
print "Running Docker container with the following command:\n"
print "docker run%s --restart=always --net=host --privileged --name=calico-node%s%s %s\n" % \
(detach_string, env_string, vol_string, node_image)
docker_client.start(container)
print "Calico node is running with id: %s" % cid
print "Waiting for successful startup"
_attach_and_stream(container, detach)
