def _find_or_pull_node_image(image_name):
"""
Check if Docker has a cached copy of an image, and if not, attempt to pull
it.
:param image_name: The full name of the image.
:return: None.
"""
try:
_ = docker_client.inspect_image(image_name)
except docker.errors.APIError as err:
if err.response.status_code == 404:
# TODO: Display proper status bar
print_paragraph("Pulling Docker image %s" % image_name)
try:
# Pull the image and then verify that it was succesfully
# pulled (the pull doesn't raise an exception on failure).
docker_client.pull(image_name)
docker_client.inspect_image(image_name)
except docker.errors.APIError:
# Unable to download the Docker image.
print_paragraph("ERROR: Unable to download Docker image.")
print_paragraph("Please verify that you have network "
"connectivity to DockerHub and that, if you "
"explicitly specified which calico/node image "
"to use, the image name is correct.")
sys.exit(1)
def _find_or_pull_node_image(image_name):
"""
Check if Docker has a cached copy of an image, and if not, attempt to pull
it.
:param image_name: The full name of the image.
:return: None.
"""
try:
_ = docker_client.inspect_image(image_name)
except docker.errors.APIError as err:
if err.response.status_code == 404:
# TODO: Display proper status bar
print_paragraph("Pulling Docker image %s" % image_name)
try:
# Pull the image and then verify that it was succesfully
# pulled (the pull doesn't raise an exception on failure).
docker_client.pull(image_name)
docker_client.inspect_image(image_name)
except docker.errors.APIError:
# Unable to download the Docker image.
print_paragraph("ERROR: Unable to download Docker image.")
print_paragraph("Please verify that you have network "
"connectivity to DockerHub and that, if you "
"explicitly specified which calico/node image "
"to use, the image name is correct.")
sys.exit(1)
def _find_or_pull_node_image(image_name):
"""
Check if Docker has a cached copy of an image, and if not, attempt to pull
it.
:param image_name: The full name of the image.
:return: None.
"""
try:
_ = docker_client.inspect_image(image_name)
except docker.errors.APIError as err:
if err.response.status_code == 404:
# TODO: Display proper status bar
print "Pulling Docker image %s" % image_name
docker_client.pull(image_name)
def _find_or_pull_node_image(image_name):
"""
Check if Docker has a cached copy of an image, and if not, attempt to pull
it.
:param image_name: The full name of the image.
:return: None.
"""
try:
_ = docker_client.inspect_image(image_name)
except docker.errors.APIError as err:
if err.response.status_code == 404:
# TODO: Display proper status bar
print "Pulling Docker image %s" % image_name
docker_client.pull(image_name)
