Fixes #35593 - Use CentOS 8 Stream for container #9604
Merged
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Currently the container image is based on Fedora 33, but that's long EOL. Current Fedora versions have Ruby 3.1, but we're unable to use that. Changing it to CentOS 8 Stream is the closest match and also close to what we run in production.
It also updates to PostgreSQL 12 which we use in production.
To make docker-compose.yml compatible with podman-compose the port is changed to a string.
It should be noted that since 36be84a no assets are served anymore so effectively the UI can no longer be used. It now uses the RAILS_SERVE_STATIC_FILES env var that the container already set.
(cherry picked from commit 060eb9b)