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-rwxr-xr-xtests/docker/docker.py47
1 files changed, 40 insertions, 7 deletions
diff --git a/tests/docker/docker.py b/tests/docker/docker.py
index e630aae108..2d67bbd15a 100755
--- a/tests/docker/docker.py
+++ b/tests/docker/docker.py
@@ -204,7 +204,7 @@ def _dockerfile_preprocess(df):
for l in df.splitlines():
if len(l.strip()) == 0 or l.startswith("#"):
continue
- from_pref = "FROM qemu:"
+ from_pref = "FROM qemu/"
if l.startswith(from_pref):
# TODO: Alternatively we could replace this line with "FROM $ID"
# where $ID is the image's hex id obtained with
@@ -221,6 +221,13 @@ class Docker(object):
""" Running Docker commands """
def __init__(self):
self._command = _guess_engine_command()
+
+ if "docker" in self._command and "TRAVIS" not in os.environ:
+ os.environ["DOCKER_BUILDKIT"] = "1"
+ self._buildkit = True
+ else:
+ self._buildkit = False
+
self._instance = None
atexit.register(self._kill_instances)
signal.signal(signal.SIGTERM, self._kill_instances)
@@ -289,10 +296,25 @@ class Docker(object):
return labels.get("com.qemu.dockerfile-checksum", "")
def build_image(self, tag, docker_dir, dockerfile,
- quiet=True, user=False, argv=None, extra_files_cksum=[]):
+ quiet=True, user=False, argv=None, registry=None,
+ extra_files_cksum=[]):
if argv is None:
argv = []
+ # pre-calculate the docker checksum before any
+ # substitutions we make for caching
+ checksum = _text_checksum(_dockerfile_preprocess(dockerfile))
+
+ if registry is not None:
+ # see if we can fetch a cache copy, may fail...
+ pull_args = ["pull", "%s/%s" % (registry, tag)]
+ if self._do(pull_args, quiet=quiet) == 0:
+ dockerfile = dockerfile.replace("FROM qemu/",
+ "FROM %s/qemu/" %
+ (registry))
+ else:
+ registry = None
+
tmp_df = tempfile.NamedTemporaryFile(mode="w+t",
encoding='utf-8',
dir=docker_dir, suffix=".docker")
@@ -306,15 +328,23 @@ class Docker(object):
(uname, uid, uname))
tmp_df.write("\n")
- tmp_df.write("LABEL com.qemu.dockerfile-checksum=%s" %
- _text_checksum(_dockerfile_preprocess(dockerfile)))
+ tmp_df.write("LABEL com.qemu.dockerfile-checksum=%s" % (checksum))
for f, c in extra_files_cksum:
tmp_df.write("LABEL com.qemu.%s-checksum=%s" % (f, c))
tmp_df.flush()
- self._do_check(["build", "-t", tag, "-f", tmp_df.name] + argv +
- [docker_dir],
+ build_args = ["build", "-t", tag, "-f", tmp_df.name]
+ if self._buildkit:
+ build_args += ["--build-arg", "BUILDKIT_INLINE_CACHE=1"]
+
+ if registry is not None:
+ cache = "%s/%s" % (registry, tag)
+ build_args += ["--cache-from", cache]
+ build_args += argv
+ build_args += [docker_dir]
+
+ self._do_check(build_args,
quiet=quiet)
def update_image(self, tag, tarball, quiet=True):
@@ -403,6 +433,8 @@ class BuildCommand(SubCommand):
parser.add_argument("--add-current-user", "-u", dest="user",
action="store_true",
help="Add the current user to image's passwd")
+ parser.add_argument("--registry", "-r",
+ help="cache from docker registry")
parser.add_argument("-t", dest="tag",
help="Image Tag")
parser.add_argument("-f", dest="dockerfile",
@@ -458,7 +490,8 @@ class BuildCommand(SubCommand):
for k, v in os.environ.items()
if k.lower() in FILTERED_ENV_NAMES]
dkr.build_image(tag, docker_dir, dockerfile,
- quiet=args.quiet, user=args.user, argv=argv,
+ quiet=args.quiet, user=args.user,
+ argv=argv, registry=args.registry,
extra_files_cksum=cksum)
rmtree(docker_dir)