Re: [Qemu-devel] [PATCH v2 0/3] Support building qemu-user powered docker test images

[Fam Zheng <famz@redhat.com>]

On Wed, 06/08 17:35, Alex Bennée wrote:
> Hi,
> 
> This is a re-spin of the previous series built on top of
> fam/docker.next. I've made the changes suggested in the last review
> and split the first patch apart to separate (and fix) the build
> directory changes first.
> 
> Now it no longer messes with the docker file you can actually
> cross-build tests. First ensure you build the debian-bootstrap image:
> 
>     DEB_ARCH=armhf DEB_TYPE=testing \
>       ./tests/docker/docker.py build qemu:debian-bootstrap \
>       ./tests/docker/dockerfiles/debian-bootstrap.docker \
>       --include-executable=./arm-linux-user/qemu-arm

This can take long depending on the network - I had to explicitly use a close
mirror in the pre script to test this, not sure why the mirror redirector
doesn't work. Eventually I get this error once the pre script succeeds and
docker build starts:

Sending build context to Docker daemon 235.1 MB
Step 1 : FROM scratch
 ---> 
Step 2 : ADD . /
 ---> 807bfa810b0c
Removing intermediate container e57ded00b227
Step 3 : RUN sed -i 's/in_target mount/echo not for docker in_target mount/g' /debootstrap/functions
 ---> Running in fd80232b38fc
rpc error: code = 2 desc = "oci runtime error: exec format error"

IIUC the sed is an armhf binary? Is something missing in the docker file? I
cannot find where the copied qemu-arm is used...

Fam

> 
> And then run the test quick target:
> 
>     make docker-test-quick@debian-bootstrap J=9 V=1
> 
> I'll leave it up to you how we cleanly integrate multi-arch builds
> into the Make system ;-)
> 
> Alex Bennée (3):
>   tests/docker/docker.py: docker_dir outside build
>   tests/docker/docker.py: support --include-executable
>   add debian-bootstrap.docker target (and pre script)
> 
>  tests/docker/docker.py                           | 68 +++++++++++++++++++++---
>  tests/docker/dockerfiles/debian-bootstrap.docker | 21 ++++++++
>  tests/docker/dockerfiles/debian-bootstrap.pre    |  5 ++
>  3 files changed, 86 insertions(+), 8 deletions(-)
>  create mode 100644 tests/docker/dockerfiles/debian-bootstrap.docker
>  create mode 100755 tests/docker/dockerfiles/debian-bootstrap.pre
> 
> -- 
> 2.7.4
>