def load_base_image():
'''Create base image from dockerfile instructions and return the image'''
base_image, dockerfile_lines = dhelper.get_dockerfile_base()
# try to get image metadata
if not container.check_image(base_image.repotag):
# if no base image is found, give a warning and continue
if not container.pull_image(base_image.repotag):
logger.warning(
errors.cannot_find_image.format(imagetag=base_image.repotag))
try:
base_image.load_image()
except NameError as error:
logger.warning('Error in loading base image: ' + str(error))
base_image.origins.add_notice_to_origins(dockerfile_lines,
Notice(str(error), 'error'))
except subprocess.CalledProcessError as error:
logger.warning('Error in loading base image: ' +
str(error.output, 'utf-8'))
base_image.origins.add_notice_to_origins(
dockerfile_lines, Notice(str(error.output, 'utf-8'), 'error'))
except IOError as error:
logger.warning('Error in loading base image: ' + str(error))
base_image.origins.add_notice_to_origin(dockerfile_lines,
Notice(str(error), 'error'))
return base_image
def setup(dockerfile=None, image_tag_string=None):
'''Any initial setup'''
# generate random names for image, container, and tag
general.initialize_names()
# load the cache
cache.load()
# load dockerfile if present
if dockerfile:
docker.load_docker_commands(dockerfile)
# check if the docker image is present
if image_tag_string:
if not container.check_image(image_tag_string):
logger.fatal(errors.cannot_find_image.format(
imagetag=image_tag_string))
sys.exit()
# create temporary working directory
if not os.path.exists(constants.temp_folder):
os.mkdir(constants.temp_folder)
# set up folders for rootfs operations
rootfs.set_up()
def setUp(self):
'''Using a specific image here. If this test fails due to the image
not being found anymore, pick a different image to test against
For now use Docker to pull the image from Dockerhub'''
if not check_image('debian:jessie'):
try:
docker_command(pull, 'debian:jessie')
except subprocess.CalledProcessError as error:
print(error.output)
self.image = DockerImage('debian:jessie')
# constants for this image
self.id = ('2fe79f06fa6d3fa9e877b4415fb189f89ca8a4ff4a954a3d84b2c84129'
'9cd127')
self.layer = ('4bcdffd70da292293d059d2435c7056711fab2655f8b74f48ad0abe'
'042b63687')
self.no_layers = 1
self.created_by = ('/bin/sh -c #(nop) ADD file:1dd78a123212328bdc72ef7'
'888024ea27fe141a72e24e0ea7c3c92b63b73d8d1 in / ')
self.instruction = ('ADD file:1dd78a123212328bdc72ef7888024ea27fe141a7'
'2e24e0ea7c3c92b63b73d8d1 in /')
