def build_image(name):
"""Build a Docker image of specified name.
Output from image building process will be printed to stdout.
"""
if not name:
raise ValueError('must provide a Docker image name')
image_dir = os.path.join(IMAGE_DIR, name)
if not os.path.isdir(image_dir):
raise Exception('image directory does not exist: %s' % image_dir)
tag = docker.docker_image(name, default_version='latest')
docker_bin = which.which('docker')
# Verify that Docker is working.
try:
subprocess.check_output([docker_bin, '--version'])
except subprocess.CalledProcessError:
raise Exception('Docker server is unresponsive. Run `docker ps` and '
'check that Docker is running')
# We obtain a context archive and build from that. Going through the
# archive creation is important: it normalizes things like file owners
# and mtimes to increase the chances that image generation is
# deterministic.
fd, context_path = tempfile.mkstemp()
os.close(fd)
try:
docker.create_context_tar(GECKO, image_dir, context_path, name)
docker.build_from_context(docker_bin, context_path, name, tag)
finally:
os.unlink(context_path)
print('Successfully built %s and tagged with %s' % (name, tag))
if tag.endswith(':latest'):
print('*' * 50)
print('WARNING: no VERSION file found in image directory.')
print('Image is not suitable for deploying/pushing.')
print('Create an image suitable for deploying/pushing by creating')
print('a VERSION file in the image directory.')
print('*' * 50)
def build_image(name):
"""Build a Docker image of specified name.
Output from image building process will be printed to stdout.
"""
if not name:
raise ValueError('must provide a Docker image name')
image_dir = os.path.join(docker.IMAGE_DIR, name)
if not os.path.isdir(image_dir):
raise Exception('image directory does not exist: %s' % image_dir)
tag = docker.docker_image(name, by_tag=True)
docker_bin = which.which('docker')
# Verify that Docker is working.
try:
subprocess.check_output([docker_bin, '--version'])
except subprocess.CalledProcessError:
raise Exception('Docker server is unresponsive. Run `docker ps` and '
'check that Docker is running')
# We obtain a context archive and build from that. Going through the
# archive creation is important: it normalizes things like file owners
# and mtimes to increase the chances that image generation is
# deterministic.
fd, context_path = tempfile.mkstemp()
os.close(fd)
try:
docker.create_context_tar(GECKO, image_dir, context_path, name)
docker.build_from_context(docker_bin, context_path, name, tag)
finally:
os.unlink(context_path)
print('Successfully built %s and tagged with %s' % (name, tag))
if tag.endswith(':latest'):
print('*' * 50)
print('WARNING: no VERSION file found in image directory.')
print('Image is not suitable for deploying/pushing.')
print('Create an image suitable for deploying/pushing by creating')
print('a VERSION file in the image directory.')
print('*' * 50)