Podman is a lot like Docker: a tool for running OCI containers. While it maintains backwards compatibility with Dockerfile and docker-compose syntax, it offers a lot of other benefits:
daemonless: it can run containers without a daemon process running in the background.
Rootless: can run containers without root privileges
pods: can group containers into secluded pods, which share resources and network namespace
Podman has other features I haven’t explored yet, like compatibility with Kubernetes yaml file, and being able to run containers as systemd units.
Have you used podman before? What are your thoughts on it?
Somewhat, but just a few pieces of it. Podman build is mainly a way to be backwards compatible with the docker cli. Buildah has some more flexibility and the way it builds the images are slightly different. You can use podman to build, but it’s probably better to move to buildah for the build step as time permits.
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You typically don’t use podman to build images and you would instead use something like buildah.
Doesn’t podman use buildah under the hood?
Somewhat, but just a few pieces of it. Podman build is mainly a way to be backwards compatible with the docker cli. Buildah has some more flexibility and the way it builds the images are slightly different. You can use podman to build, but it’s probably better to move to buildah for the build step as time permits.