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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
import os
from io import BytesIO
from taskgraph.docker import load_image_by_task_id
from taskgraph.generator import load_tasks_for_kind
from taskgraph.optimize.strategies import IndexSearch
from taskgraph.parameters import Parameters
from gecko_taskgraph.util import docker
from . import GECKO
def get_image_digest(image_name):
params = Parameters(
level=os.environ.get("MOZ_SCM_LEVEL", "3"),
strict=False,
)
tasks = load_tasks_for_kind(params, "docker-image")
task = tasks[f"docker-image-{image_name}"]
return task.attributes["cached_task"]["digest"]
def load_image_by_name(image_name, tag=None):
params = {"level": os.environ.get("MOZ_SCM_LEVEL", "3")}
tasks = load_tasks_for_kind(params, "docker-image")
task = tasks[f"docker-image-{image_name}"]
deadline = None
task_id = IndexSearch().should_replace_task(
task, {}, deadline, task.optimization.get("index-search", [])
)
if task_id in (True, False):
print(
"Could not find artifacts for a docker image "
"named `{image_name}`. Local commits and other changes "
"in your checkout may cause this error. Try "
"updating to a fresh checkout of mozilla-central "
"to download image.".format(image_name=image_name)
)
return False
return load_image_by_task_id(task_id, tag)
def build_context(name, outputFile, args=None):
"""Build a context.tar for image with specified name."""
if not name:
raise ValueError("must provide a Docker image name")
if not outputFile:
raise ValueError("must provide a outputFile")
image_dir = docker.image_path(name)
if not os.path.isdir(image_dir):
raise Exception("image directory does not exist: %s" % image_dir)
docker.create_context_tar(GECKO, image_dir, outputFile, image_name=name, args=args)
def build_image(name, tag, args=None):
"""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 = docker.image_path(name)
if not os.path.isdir(image_dir):
raise Exception("image directory does not exist: %s" % image_dir)
tag = tag or docker.docker_image(name, by_tag=True)
buf = BytesIO()
docker.stream_context_tar(GECKO, image_dir, buf, name, args)
docker.post_to_docker(buf.getvalue(), "/build", nocache=1, t=tag)
print(f"Successfully built {name} and tagged with {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)