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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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104

it's not always sunny with podman (lemmy.ml)

submitted 8 months ago* (last edited 8 months ago) by GravitySpoiled@lemmy.ml to c/linux@lemmy.ml

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I am moving from docker to podman and selinux because I thought that podman is more secure and hence, the future. I thought the transition will be somewhat seamless. I even prepaired containers but once I migrated I still ran into issues.

minor issue: it's podman-compose instead of podman compose. The hyphen feels like a step back because we moved from docker-compose to docker compose. But thT's not a real issue.

podman does not autostart containers after boot. You have to manually start them, or write a start script. Or create a systemd unit for each of them.

Spinning up fresh services works most of the time but using old services that worked great with docker are a pain. I am wasting minutes after minutes because I struggle with permissions and other weird issues.

podman can't use lower number ports such that you have to map the ports outside of the machine and forward them properly.

Documentation and tutorials are "all" for docker. Github issues are "all" for docker. There isn't a lot of information floating around.

I'm still not done and I really wonder why I should move forward and not go back to docker. Painful experience so far. https://linuxhandbook.com/docker-vs-podman/ and following pages helped me a lot to get rid of my frustration with podman.

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[–] MigratingtoLemmy@lemmy.world 9 points 8 months ago (1 children)

Almost all of your problems are because you aren't running as root. These aren't bugs. They seem like a pain because you're transitioning from Docker which runs as root (which is ABSOLUTELY INCORRIGIBLE in my opinion).

SELinux is a different story though. Now that's a hard to tame beast. Things go wrong easily if you don't know what you're doing.

I suggest researching more before jumping off into a new technology, you seem like you weren't anticipating some of these problems which adds to the frustration.

[–] sudneo@lemmy.world 1 points 8 months ago

You can run docker rootless too. On local machines running docker with root is a risk that for many is acceptable. On servers and publicly exposed hosts, rootless.