diff mbox series

docker.py: fix fetching of FROM layers

Message ID 20200713145801.29278-1-alex.bennee@linaro.org (mailing list archive)
State New, archived
Headers show
Series docker.py: fix fetching of FROM layers | expand

Commit Message

Alex Bennée July 13, 2020, 2:58 p.m. UTC
This worked on a system that was already bootstrapped because the
stage 2 images already existed even if they wouldn't be used. What we
should have pulled down was the FROM line containers first because
building on gitlab doesn't have the advantage of using our build
system to build the pre-requisite bits.

We still pull the image we want to build just in case we can use the
cached data.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 tests/docker/docker.py | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

Comments

Daniel P. Berrangé July 13, 2020, 3:09 p.m. UTC | #1
On Mon, Jul 13, 2020 at 03:58:01PM +0100, Alex Bennée wrote:
> This worked on a system that was already bootstrapped because the
> stage 2 images already existed even if they wouldn't be used. What we
> should have pulled down was the FROM line containers first because
> building on gitlab doesn't have the advantage of using our build
> system to build the pre-requisite bits.
> 
> We still pull the image we want to build just in case we can use the
> cached data.
> 
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
> ---
>  tests/docker/docker.py | 16 +++++++++++-----
>  1 file changed, 11 insertions(+), 5 deletions(-)

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>


Regards,
Daniel
Philippe Mathieu-Daudé July 13, 2020, 5:46 p.m. UTC | #2
On 7/13/20 4:58 PM, Alex Bennée wrote:
> This worked on a system that was already bootstrapped because the
> stage 2 images already existed even if they wouldn't be used. What we
> should have pulled down was the FROM line containers first because
> building on gitlab doesn't have the advantage of using our build
> system to build the pre-requisite bits.
> 
> We still pull the image we want to build just in case we can use the
> cached data.
> 
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
> ---
>  tests/docker/docker.py | 16 +++++++++++-----
>  1 file changed, 11 insertions(+), 5 deletions(-)
> 

Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
diff mbox series

Patch

diff --git a/tests/docker/docker.py b/tests/docker/docker.py
index 2d67bbd15a..c9f20d8d09 100755
--- a/tests/docker/docker.py
+++ b/tests/docker/docker.py
@@ -306,14 +306,18 @@  class Docker(object):
         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:
+            sources = re.findall("FROM qemu\/(.*)", dockerfile)
+            # Fetch any cache layers we can, may fail
+            for s in sources:
+                pull_args = ["pull", "%s/qemu/%s" % (registry, s)]
+                if self._do(pull_args, quiet=quiet) != 0:
+                    registry = None
+                    break
+            # Make substitutions
+            if registry is not None:
                 dockerfile = dockerfile.replace("FROM qemu/",
                                                 "FROM %s/qemu/" %
                                                 (registry))
-            else:
-                registry = None
 
         tmp_df = tempfile.NamedTemporaryFile(mode="w+t",
                                              encoding='utf-8',
@@ -339,6 +343,8 @@  class Docker(object):
             build_args += ["--build-arg", "BUILDKIT_INLINE_CACHE=1"]
 
         if registry is not None:
+            pull_args = ["pull", "%s/%s" % (registry, tag)]
+            self._do(pull_args, quiet=quiet)
             cache = "%s/%s" % (registry, tag)
             build_args += ["--cache-from", cache]
         build_args += argv