fix: enforce minimum version of docker/podman

[mayeut]

This allows to always pass --platform to the OCI engine thus fixing issues with multiarch images.
It also allows to use docker cp instead of system tar workaround.

fix #1771
fix #1957
fix #1962
close #1968

Last time this was attempted, it failed on some CI (c.f. #1773), let's check the status now.

[mayeut]

gitlab might or might not fail if this goes in.
@joerick, we might want to push this to a branch of the pypa repo rather than my fork in order to test gitlab (If I remember correctly, that's the only way to test gitlab) ?

Travis-CI is failing (despite result being OK).
AppVeyor is another issue entirely, I don't think it's being tested anymore ? (since the move to pypa ?)

[mayeut]

So far, the only CI that exhibited issues is Travis CI on graviton2 VM (still missing gitlab tests & Travis CI ppc64le/s390x).
It uses docker 19.03 on Ubuntu Focal (Jammy not available yet).

We can either allow docker 19.03 but print a warning or require TravisCI graviton2 VM users to update docker.
I'd rather see users update docker (it's a matter of adding 8 lines in .travis.yml) as this might also allow docker cp without any workarounds for legacy behavior.

@henryiii, @joerick any thoughts ?

[mayeut]

AppVeyor build can be seen successful on my fork: https://ci.appveyor.com/project/mayeut/cibuildwheel/builds/50422602
CirrusCI build also (no more compute credits here): https://cirrus-ci.com/build/5147426338635776
I tested gitlab by pushing my branch to the pypa repo.

[joerick]

I'd rather see users update docker (it's a matter of adding 8 lines in .travis.yml) as this might also allow docker cp without any workarounds for legacy behavior.

That sounds fine to me. I assume this is the incantation to upgrade docker on that platform?

.travis.yml

addons:
  apt:
    sources:
      - sourceline: 'deb https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable'
    packages:
    - docker-ce docker-ce-cli containerd.io

[joerick]

Broadly, very happy with this!

Apologies, I didn't make it all the way through my last review so I've reviewed again and spotted a couple more things.

[mayeut]

There's an issue with s390x & ppc64le on Travis CI so this requires a bit more work...

[mayeut]

It seems the installation of QEMU is failing on s390x & ppc64le which leads to the oci_container_test timeouts.

[mayeut]

Converting to draft until the remaining (weird) issue on s390x gets solved.

[mayeut]

The weird issue is that docker container ls does not seem to list the just created/running container...
Adding a retry, the unit test passes:

diff --git a/unit_test/oci_container_test.py b/unit_test/oci_container_test.py
index e913c203..803b09bd 100644
--- a/unit_test/oci_container_test.py
+++ b/unit_test/oci_container_test.py
@@ -8,6 +8,7 @@
 import subprocess
 import sys
 import textwrap
+import time
 from pathlib import Path, PurePath, PurePosixPath
 
 import pytest
@@ -134,16 +135,23 @@ def test_container_removed(container_engine):
     with OCIContainer(
         engine=container_engine, image=DEFAULT_IMAGE, oci_platform=DEFAULT_OCI_PLATFORM
     ) as container:
-        docker_containers_listing = subprocess.run(
-            f"{container.engine.name} container ls",
-            shell=True,
-            check=True,
-            stdout=subprocess.PIPE,
-            text=True,
-        ).stdout
         assert container.name is not None
-        assert container.name in docker_containers_listing
         old_container_name = container.name
+        retry_count = 3
+        while retry_count > 0:
+            retry_count -= 1
+            docker_containers_listing = subprocess.run(
+                f"{container.engine.name} container ls",
+                shell=True,
+                check=True,
+                stdout=subprocess.PIPE,
+                text=True,
+            ).stdout
+            if container.name in docker_containers_listing:
+                break
+            if retry_count == 0:
+                pytest.xfail("s390x travis...")
+            time.sleep(0.5)
 
     docker_containers_listing = subprocess.run(
         f"{container.engine.name} container ls",

I will let the debug run finish before pushing again to this branch skipping this test on Travis CI s390x...

[mayeut]

Skipping the flaky test on s390x allowed to run all tests successfully.
Installing only test dependencies of cibuildwheel allows not to build some wheels on ppc64le/s390x (cryptography, pynacl, pyaml, ...) reducing setup time.

[joerick]

looks great!