Commit Graph

192 Commits

Author SHA1 Message Date
Alex Bennée
43e1b2ffec docker: fail more gracefully on docker.py check
As this is called directly from the Makefile while determining
dependencies and it is possible the user was configured in one window
but not have credentials in the other. Let's catch the Exceptions and
deal with it quietly.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-07-24 11:45:25 +01:00
Alex Bennée
be5e1f527a docker: par down QEMU_CONFIGURE_OPTS in debian-tricore-cross
This image isn't going to build anything significant as it is just
intended for building test cases. In case it does end up getting
inadvertently included in a build lets aim for the minimal possible
product.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-07-24 11:45:25 +01:00
Alex Bennée
e043d73212 docker: base debian-tricore on qemu:debian9
We need both git and a working compiler to build the tools. Although
the qemu:debian9 image also has a bunch of extra dependencies it would
be fairly unusual for a user not to already have this layer available
for one of our many other docker images so lets not complicate things.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-07-24 11:45:25 +01:00
Alex Bennée
19c9a18f45 docker: add linux-user powered cross builder for QEMU
We can't use cross compilers in the current Debian stable and Debian
sid is sketchy as hell. So for powerpc fall back to dog-fooding our
own linux-user to do the build.

As we can only build the base image with a suitably configured
source tree we fall back to checking for its existence when we can't
build it from scratch. However this does mean you don't have to keep
a static powerpc-linux-user in your active configuration just to
update the cross build image.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-07-05 16:57:39 +01:00
Alex Bennée
dc338fdb07 docker: add special rule for deboostrapped images
We might as well have a custom rule for this. For one thing the
dependencies are different. As the primary dependency for
docker-image-% could never be docker-image-debian-bootstrap we can
drop that test in the main rule as well.

Missing EXECUTABLE, DEB_ARCH and DEB_TYPE are treated as hard faults
now. We also error out if the EXECUTABLE file isn't there. We should
really do this with a dependency on any source rules but currently
subdir-FOO-linux-user isn't enough on a clean build.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-07-05 15:59:41 +01:00
Alex Bennée
547cb45ea3 docker: add special handling for FROM:debian-%-user targets
These will have been build with debootstrap so we need to check
against the debian-bootstrap dockerfile. This does mean sticking to
debian-FOO-user as the naming conventions for boot-strapped images.
The actual cross image is built on top.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-07-05 15:59:41 +01:00
Alex Bennée
300cf467fd docker: debian-bootstrap.pre allow customising of variant/url
We default to the buildd variant as most of our images are for
building. However lets give the user the ability to specify "minbase"
if they want to create a simple base image for experimentation.

Allowing the tweaking of DEB_URL means we can also bootstrap other
Debian based OS's. For example:

  make docker-binfmt-image-debian-ubuntu-bionic-arm64 \
       DEB_ARCH=arm64 DEB_TYPE=bionic \
       DEB_VARIANT=minbase DEB_URL=http://ports.ubuntu.com/ \
       EXECUTABLE=./aarch64-linux-user/qemu-aarch64

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-07-05 15:59:41 +01:00
Alex Bennée
e6bfdeca8b docker: drop QEMU build-dep from bootstrap
This is best done with any child images that actually need it.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-07-05 15:59:41 +01:00
Philippe Mathieu-Daudé
272e551b43 docker: Do not run tests in 'intermediate' images
We can still build the DOCKER_INTERMEDIATE_IMAGES images,
but they won't appear in 'make test*@$IMAGE'.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2018-07-05 15:59:41 +01:00
Philippe Mathieu-Daudé
48feb682db docker: Clean the MXE base image
Using the duplicated same package is confusing.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2018-07-05 15:59:41 +01:00
Philippe Mathieu-Daudé
daf999f77a docker: ubuntu: Use SDL2
Do not test the deprecated API versions (see cabd358407).
Debian MXE MinGW cross images are already using SDL2.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2018-07-05 15:59:41 +01:00
Philippe Mathieu-Daudé
beac6a98f6 docker: ubuntu: Update the package list before installing new ones
Since docker caches the different layers, updating the package
list does not invalidate the previous "apt-get update" layer,
and it is likely "apt-get install" hits an outdated repository.

See https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#apt-get

This fixes:

  $ make docker-image-ubuntu V=1
  ./tests/docker/docker.py build qemu:ubuntu tests/docker/dockerfiles/ubuntu.docker   --add-current-user
  Sending build context to Docker daemon  3.072kB
  [...]
  E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/m/mesa/libgles2-mesa_17.0.7-0ubuntu0.16.04.2_amd64.deb  404  Not Found
  E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/m/mesa/libgles2-mesa-dev_17.0.7-0ubuntu0.16.04.2_amd64.deb  404  Not Found
  E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
  The command '/bin/sh -c apt-get -y install $PACKAGES' returned a non-zero code: 100
  tests/docker/Makefile.include:40: recipe for target 'docker-image-ubuntu' failed
  make: *** [docker-image-ubuntu] Error 1

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2018-07-05 15:59:41 +01:00
Alex Bennée
95f7aabf49 docker: add gcovr to travis image
Useful for debugging if nothing else as the gcovr on the Travis images
are a little old.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2018-07-05 15:59:41 +01:00
Daniel P. Berrangé
e7b3af8159 glib: bump min required glib library version to 2.40
Per supported platforms doc[1], the various min glib on relevant distros is:

  RHEL-7: 2.50.3
  Debian (Stretch): 2.50.3
  Debian (Jessie): 2.42.1
  OpenBSD (Ports): 2.54.3
  FreeBSD (Ports): 2.50.3
  OpenSUSE Leap 15: 2.54.3
  SLE12-SP2: 2.48.2
  Ubuntu (Xenial): 2.48.0
  macOS (Homebrew): 2.56.0

This suggests that a minimum glib of 2.42 is a reasonable target.

The GLibC compile farm, however, uses Ubuntu 14.04 (Trusty) which only
has glib 2.40.0, and this is needed for testing during merge. Thus an
exception is made to the documented platform support policy to allow for
all three current LTS releases to be supported.

Docker jobs that not longer satisfy this new min version are removed.

[1] https://qemu.weilnetz.de/doc/qemu-doc.html#Supported-build-platforms

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-06-29 12:22:28 +01:00
Alex Bennée
5499fa9e44 tests/docker/Makefile.include: only force SID to NOCACHE if old
Now we can check the age of a docker image we can be a little more
intelligent about re-building Sid images and only force NOCACHE if
it is "old".

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2018-06-20 22:13:39 +01:00
Alex Bennée
7b882245f4 docker: docker.py adding age check command
This is useful for querying if an image is too old.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-06-20 22:13:39 +01:00
Alex Bennée
cff5477330 tests/Makefile: call sub-makes with SKIP_DOCKER_BUILD=1
As we now ensure all the images we are going to use are built in the
top level make file lets not over complicate things by running the
full script again. We do run the check script just in case someone
deletes the docker image while we are running.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2018-06-20 22:13:39 +01:00
Alex Bennée
f97da1f717 docker: docker.py add check sub-command
This command allows you to check if we need to re-build a docker
image. If the image isn't in the repository or the checksums don't
match then we return false and some text (for processing in
makefiles).

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2018-06-20 22:13:39 +01:00
Alex Bennée
f9172822e7 docker: docker.py don't conflate checksums for extra_files
This just gets confusing especially as the helper function doesn't
even take into account any extra files (or the executable). Currently
the actual check just ignores them and also passes the result through
_dockerfile_preprocess so we fix that too.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-06-20 22:13:39 +01:00
Alex Bennée
83405c4517 docker: docker.py use "version" to probe usage
The "images" command is a fairly heavyweight command to run as it
involves searching the whole docker file-system inventory. On a
machine with a lot of images this makes start-up fairly expensive.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2018-06-20 22:13:39 +01:00
Alex Bennée
08f56d8c9c docker: move debian-powerpc-cross to sid based build
The original Jessie based cross builder hasn't worked for a while. The
state of the libraries is still perilous for cross-building QEMU but
we can use it for building TCG tests.

The debian-apt-fake.sh script can also be dropped as it is no longer
used.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-06-20 20:22:34 +01:00
Alex Bennée
e100a96755 tests/tcg: enable building for RISCV64
As before, using Debian SID compilers.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-06-20 20:22:34 +01:00
Alex Bennée
33b2c4b50f tests/tcg: enable building for mips64
As before, using Debian SID compilers.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-06-20 20:22:34 +01:00
Alex Bennée
cc6c7365b8 tests/tcg: enable building for sparc64
As before, using Debian SID compilers.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-06-20 20:22:34 +01:00
Alex Bennée
a5ec3e36dc tests/tcg: enable building for sh4
As before, using Debian SID compilers. While the compiler can be
coerced into generating big-endian code it seems the linker can't deal
with it so we only enable the building for little endian SH4.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-06-20 20:22:34 +01:00
Alex Bennée
21d71c8c41 tests/tcg: enable building for m68k
As before, using Debian SID compilers.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-06-20 20:22:34 +01:00
Alex Bennée
3ae8a1000b tests/tcg: enable building for HPPA
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-06-20 20:22:34 +01:00
Alex Bennée
409c1c9cbd tests/tcg: enable building for Alpha
We can't use our normal Debian based compilers as Alpha isn't an
officially supported architecture. However it is available as a port
and fortunately cross compilers for all these targets are included in
Debian Sid, the perpetual rolling/unstable/testing version of Debian.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-06-20 20:22:34 +01:00
Alex Bennée
6bf77518dd tests/docker/Makefile.include: fix mipsel-cross dependancy
This got broken in commit 4319db7 but generally only shows up when you
try and do massive parallel builds on fresh machines.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-06-20 20:22:34 +01:00
Alex Bennée
e27cae268f docker: Makefile.include introduce DOCKER_SCRIPT
Define this in one place to make it easy to re-use.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-06-20 20:22:34 +01:00
Alex Bennée
50b7273854 docker: allow "cc" command to run in user context
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-06-20 20:22:34 +01:00
Alex Bennée
99cfdb8662 docker: extend "cc" command to accept compiler
When calling our cross-compilation images we want to call something
other than the default cc.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Fam Zheng <famz@redhat.com>
2018-06-20 20:22:34 +01:00
Alex Bennée
5e03c2d816 docker: Add "cc" subcommand
Signed-off-by: Fam Zheng <famz@redhat.com>
[AJB: add if args.paths check]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-06-20 20:22:34 +01:00
Alex Bennée
7a5d936b6f docker: docker.py wrap StringIO import for python3
Although the docker.py is nominally python2 we actually invoke it with
the configured python from the configure script.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2018-06-20 16:57:34 +01:00
Eduardo Habkost
f03868bd56 python: futurize -f libfuturize.fixes.fix_print_with_import
Change all Python code to use print as a function.

This is necessary for Python 3 compatibility.

Done using:

  $ py=$( (g grep -l -E '^#!.*python';find -name '*.py' -printf '%P\n';) | \
    sort -u | grep -v README.sh4)
  $ futurize -w -f libfuturize.fixes.fix_print_with_import $py

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20180608122952.2009-2-ehabkost@redhat.com>
[ehabkost: fixup tests/docker/docker.py]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-06-08 14:39:24 -03:00
Philippe Mathieu-Daudé
36dc5fedab docker: add debian/tricore image
TriCore binutils is built from Bastian Koppelmann repository.

Note: There is no TriCore compiler in this image (only assembler/linker).

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
[AJB: base of Debian9, add to Makefile.include]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2018-06-05 16:25:43 +01:00
Paolo Bonzini
cabd358407 docker: test-mingw: use SDL2 and GTK+3
Do not test the deprecated API versions.  debian-win32-cross and debian-win64-cross
are already using SDL2 (they do not cover GTK+ at all).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
[AJB: fix merge conflicts]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2018-06-05 16:25:42 +01:00
Fam Zheng
8bce19d3a6 docker: Add fedora-i386-cross image
It has some basic *-devel.i686 packages to be used with "gcc -m32" as a
32 bit cross build environment.

Signed-off-by: Fam Zheng <famz@redhat.com>
[AJB: add glibc-static]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-06-05 16:25:42 +01:00
Alex Bennée
15df9d3783 docker: add "probe" command for configure
This is a helper function for the configure script. It replies yes,
sudo or no to inform the user if non-interactive docker support is
available. We trap the Exception to fail gracefully.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Fam Zheng <famz@redhat.com>
2018-06-05 16:25:42 +01:00
Fam Zheng
63dba573fa docker: Update fedora image to 28
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <20180601023557.9770-1-famz@redhat.com>
2018-06-04 14:39:18 +08:00
Alex Bennée
5609c5127d tests/docker/Makefile.include: handle empty TARGET_LIST
If the user doesn't specify a TARGET_LIST they get the current
configuration but with spaces and hilarity ensues. This adds some make
magic to turn the TARGET_LIST back into a comma separated list.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

Message-Id: <20180521103504.26432-1-alex.bennee@linaro.org>
Signed-off-by: Fam Zheng <famz@redhat.com>
2018-06-04 14:39:18 +08:00
Alex Bennée
67659ab1eb docker: update Travis docker image
This is still poorly documented by Travis but according to:

  https://docs.travis-ci.com/user/common-build-problems/#Running-a-Container-Based-Docker-Image-Locally

their reference images are now hosted on Docker Hub. So we update the
FROM line to refer to the new default image. We also need a few
additional tweaks:

  - re-enable deb-src lines for our build-dep install
  - add explicit PATH definition for tools
  - force the build USER to be Travis
  - add clang to FEATURES for our test-clang machinery

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-06-01 15:00:54 +01:00
Philippe Mathieu-Daudé
bcaf457786 docker: do not display deprecated images in 'make docker' help
the 'debian' base image is deprecated since 3e11974988

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2018-06-01 14:55:03 +01:00
Philippe Mathieu-Daudé
1a06f5c910 docker: sort images list displayed by 'make docker'
we can now directly see different version sort consecutively.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2018-06-01 14:55:03 +01:00
Philippe Mathieu-Daudé
9d5e546af0 docker: Fix trivial typo
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180508144358.13530-1-f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Fam Zheng <famz@redhat.com>
2018-05-18 16:52:53 +08:00
Paolo Bonzini
07fed47417 docker: fedora: test more components
Install optional dependencies of QEMU to get better coverage.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1520942752-19449-1-git-send-email-pbonzini@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
2018-04-09 15:13:02 +08:00
Fam Zheng
185809224a docker: Inline "prep_fail" in run script
We don't source common.rc where prep_fail is defined, so spell out the
commands and do what was intended.

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <20180326090350.30014-1-famz@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
2018-04-09 15:13:02 +08:00
Philippe Mathieu-Daudé
0c153b4c6f docker: dump 'config.log' if ./configure fails
Suggested-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20180315142713.30960-1-f4bug@amsat.org>
Signed-off-by: Fam Zheng <famz@redhat.com>
2018-04-09 15:13:02 +08:00
Marc-André Lureau
02f769b7ee tests: make docker-test-debug@fedora run sanitizers
Since --enable-debug no longer enable sanitizers, we need explicit
--enable-sanitizers.

llvm package is required for llvm-symbolizer, to get symbols in
backtraces.

Add make V=1 to get details about failing tests.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180312120849.20073-1-marcandre.lureau@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
2018-03-13 01:19:56 +08:00
Paolo Bonzini
5b9b49d7bd docker: change Fedora base image to fedora:27
Using "fedora:latest" makes behavior different depending on when you
actually pulled the image from the docker repository.  In my case,
the supposedly "latest" image was a Fedora 25 download from 8 months
ago, and the new "test-debug" test was failing.

Use "27" to improve reproducibility and make it clear when the image
is obsolete.

Cc: Fam Zheng <famz@redhat.com>
Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1515755504-21341-1-git-send-email-pbonzini@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
2018-02-08 09:21:34 +08:00