Transitioning from Docker to Podman

Re:Transitioning from Docker to Podman by yobert on Friday November 20, 2020 @07:01PM (#25166627)

Not using --cache-from, though I did try the various caching command line options to try to troubleshoot. Just a vanilla Dockerfile with a few RUN commands and COPY commands. It would hit cache until about the third layer, and then would cache break every time.

On my local computer (Arch) podman is v2.1.1, which seems to have whatever bug I was hitting fixed.

So I guess my complaint isn't about podman specifically-- It had bugs and they were fixed, and that's great. But I hate that RHEL 8 touts it as a docker replacement, and won't carry docker in their repositories, when the version they have in their production releases is so broken.

We eventually sledgehammered docker CE's CentOS repo into our RHEL 8 jenkins server and now everything works perfectly.

Running podman on the production webservers seems to work okay though-- apart from the process killing problems.

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Re:Transitioning from Docker to Podman by fatherlinnux on Monday November 23, 2020 @11:44AM (#25188626)

I've said this so many times, but we wanted to carry Docker in RHEL 8, but we couldn't. We would have been forced to use Moby and it's not a well contributed to project anymore. The whole Docker contributor community has fallen apart, and Red Hat needs to be able to support a container engine until the mid 2030s.

You can get access to Moby in Fedora, but it just wasn't viable to include docker in RHEL 8 for both legal and community risks.

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