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author | Alex Bennée <alex.bennee@linaro.org> | 2017-02-20 10:51:36 +0000 |
---|---|---|
committer | Fam Zheng <famz@redhat.com> | 2017-02-24 14:18:11 +0800 |
commit | 414a8ce57e0b114a8c4cda143e34a3da0b321a23 (patch) | |
tree | ef5b7826a3f7634aafc354350ccc64f81cf0c7c8 /tests/docker/docker.py | |
parent | 10f25e4844cb9b3f02fb032f88051dd5b65b4206 (diff) |
tests/docker: add basic user mapping support
Currently all docker builds are done by exporting a tarball to the
docker container and running the build as the containers root user.
Other use cases are possible however and it is possible to map a part
of users file-system to the container. This is useful for example for
doing cross-builds of arbitrary source trees. For this to work
smoothly the container needs to have a user created that maps cleanly
to the host system.
This adds a -u option to the docker script so that:
DEB_ARCH=armhf DEB_TYPE=stable ./tests/docker/docker.py build \
-u --include-executable=arm-linux-user/qemu-arm \
debian:armhf ./tests/docker/dockerfiles/debian-bootstrap.docker
Will build a container that can then be run like:
docker run --rm -it -v /home/alex/lsrc/qemu/risu.git/:/src \
--user=alex:alex -w /src/ debian:armhf \
sh -c "make clean && ./configure -s && make"
All docker containers built will add the current user unless
explicitly disabled by specifying NOUSER when invoking the Makefile:
make docker-image-debian-armhf-cross NOUSER=1
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Fam Zheng <famz@redhat.com>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20170220105139.21581-2-alex.bennee@linaro.org>
Signed-off-by: Fam Zheng <famz@redhat.com>
Diffstat (limited to 'tests/docker/docker.py')
-rwxr-xr-x | tests/docker/docker.py | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/tests/docker/docker.py b/tests/docker/docker.py index 37d83199e7..9fd32ab5fa 100755 --- a/tests/docker/docker.py +++ b/tests/docker/docker.py @@ -25,6 +25,7 @@ import signal from tarfile import TarFile, TarInfo from StringIO import StringIO from shutil import copy, rmtree +from pwd import getpwuid DEVNULL = open(os.devnull, 'wb') @@ -149,13 +150,21 @@ class Docker(object): labels = json.loads(resp)[0]["Config"].get("Labels", {}) return labels.get("com.qemu.dockerfile-checksum", "") - def build_image(self, tag, docker_dir, dockerfile, quiet=True, argv=None): + def build_image(self, tag, docker_dir, dockerfile, + quiet=True, user=False, argv=None): if argv == None: argv = [] tmp_df = tempfile.NamedTemporaryFile(dir=docker_dir, suffix=".docker") tmp_df.write(dockerfile) + if user: + uid = os.getuid() + uname = getpwuid(uid).pw_name + tmp_df.write("\n") + tmp_df.write("RUN id %s 2>/dev/null || useradd -u %d -U %s" % + (uname, uid, uname)) + tmp_df.write("\n") tmp_df.write("LABEL com.qemu.dockerfile-checksum=%s" % _text_checksum(dockerfile)) @@ -225,6 +234,9 @@ class BuildCommand(SubCommand): help="""Specify a binary that will be copied to the container together with all its dependent libraries""") + parser.add_argument("--add-current-user", "-u", dest="user", + action="store_true", + help="Add the current user to image's passwd") parser.add_argument("tag", help="Image Tag") parser.add_argument("dockerfile", @@ -261,7 +273,7 @@ class BuildCommand(SubCommand): docker_dir) dkr.build_image(tag, docker_dir, dockerfile, - quiet=args.quiet, argv=argv) + quiet=args.quiet, user=args.user, argv=argv) rmtree(docker_dir) |