Migrate from podman-compose to Kubefiles

Overview

Kubefiles are a way to define a podman pod and containers in a single file. They are similar to docker-compose files, but can also be used with Kubernetes.

Requirements

The podman-compose or docker-compose file must be started with podman-compose up -d and the created podman pod should be listed with podman pod ls.

Generate Kubefiles

Pod

Get the pod name via podman pod ls and generate the Kubefile with:

podman kube generate <pod_name> -f pod.kube.yaml

File permissions

Get the current ids with stat <file> or stat <directory>.

Give the permission to the podman user with chown <podman_user>:<podman_group> <file> or chown -R <podman_user>:<podman_group> <directory>.

Use podman to change the permission to the uid and gid found with stat.

podman unshare chown <uid>:<gid> <file>

# or

podman unshare chown -R <uid>:<gid> <directory>

Persistent Volume Claim

Get the volume name via podman volume ls and generate the Kubefile with:

podman kube generate <volume_name> -f pvc.kube.yaml