Cannot build 5.22.x due to cffi error

[glemignot]

Hello,

I cannot build the 5.22.0 or 5.22.1 Docker image (I used to build them since 4.x without problem).

When I do :

 cd build/mattermost
 git fetch
 git checkout tags/5.22.1
 docker build app --build-arg edition=team --build-arg PUID=1000 --build-arg PGID=1000 -t mm_app:5.22.1 --no-cache

It fails with :

Executing busybox-1.28.4-r3.trigger
Executing ca-certificates-20191127-r0.trigger
OK: 272 MiB in 80 packages
Collecting wal-e<1.0.0
  Downloading https://files.pythonhosted.org/packages/7a/67/4da340652303e3adb26f6e9aa97b2118dbe5cd17be87e8a21dff9e9bc507/wal-e-0.9.2.tar.gz (100kB)
Collecting envdir
  Downloading https://files.pythonhosted.org/packages/75/dd/817dc77edf4807fc2c29e28046ab83aa7ccfe27e79d24ca37d7aaa1e36bb/envdir-1.0.1-py2.py3-none-any.whl
Collecting gevent>=1.0.2 (from wal-e<1.0.0)
  Downloading https://files.pythonhosted.org/packages/72/8b/20c2ebb3bda3f748f251115831568be202456138e088d3f25d24bf430690/gevent-20.4.0.tar.gz (5.5MB)
  Could not find a version that satisfies the requirement cffi>=1.12.3 (from versions: )
No matching distribution found for cffi>=1.12.3
You are using pip version 10.0.1, however version 20.1b1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
The command '/bin/sh -c apk add --no-cache       build-base       curl       libc6-compat       libffi-dev       linux-headers       python-dev       py-pip       py-cryptography       pv       libressl-dev     && pip --no-cache-dir install -c pip-constraints.txt 'wal-e<1.0.0' envdir     && rm -rf /var/cache/apk/* /tmp/* /var/tmp/*' returned a non-zero code: 1

Build is done on Debian 9 (stretch) but host OS shouldn't matter much when building a Docker image.

If you need any additional information feel free to ask.

[oguera]

See #469

There is also an open PR (#471). You can apply the changed if you want.

[glemignot]

Thanks, it works with the fix. Since there are other issues opened already (sorry I did search but I couldn't find them) I'll close that one.