Docker and the OCI container ecosystem

Posted Jul 27, 2022 9:13 UTC (Wed) by cortana (subscriber, #24596)
Parent article: Docker and the OCI container ecosystem

Great article! A couple of omissions that occurred to me:

CRI-O does have a cli, crictl, but you'd only use it for low level troubleshooting/debugging/etc.
There's a whole other container ecosystem that has sprung up around Singularity. The idea here is that we _don't_ want to isolate the code inside the container from the user's home directory, shared filesystems, etc; we just want to use containers for distributing software. You'd use this on e.g., a high performance computing cluster. Personally I think it's a bit of a shame that the community didn't coalesce around Podman for this use case, but there we are...

Docker and the OCI container ecosystem

Posted Jul 27, 2022 20:07 UTC (Wed) by jordan (subscriber, #110573) [Link]

> CRI-O does have a cli, crictl, but you'd only use it for low level troubleshooting/debugging/etc.

I was aware of crictl but left it out of the CRI-O section because it's not specific to CRI-O; it can also be used with containerd or another CRI runtime. The article was getting pretty long and it's hard to mention everything.

> There's a whole other container ecosystem that has sprung up around Singularity.

I'm aware of that ecosystem but haven't played with it. I did give a brief shoutout to Apptainer at the end; it appears to me that that is the new name for Singularity, but I could be wrong about that!