podman

I’ve started to running more containers in my homelab with Podman, running inside AlamaLinux. Most of the times, things just worked. However today, I tried to setup similar containers on OpenSUSE Leap 15.16 host, and I came across an issue getting containers to communicate with one another. Well, spoiler alert, I found a solution, hence this blog post. TL;DR - install cni-plugin-dnsname package from cni-plugin-dnsname build service. (No package from the official OpenSUSE repo)....

There is a container that I cannot stop. TL;DR the solution that worked for me was rebooting the host system. Anyhow, I’ll share the troubleshooting steps that did not work. ❯ podman stop semaphore-postgres WARN[0010] StopSignal SIGINT failed to stop container semaphore-postgres in 10 seconds, resorting to SIGKILL Error: given PID did not die within timeout ❯ podman ps -a | grep semaphore-postgres a688a42c4c15 docker.io/library/postgres:16 postgres 17 minutes ago Stopping 0....

I have a Podman container that needs periodically manual update once in a while. I’d like this container to auto-update, and found that this was possible with podman auto-updates feature. Essentially, I need to set a label for the container - --label io.containers.autoupdate=registry. More details with and very good explanation about this topic is available at a Red Hat Enable Sysadmin article titled “How to use auto-updates and rollbacks in Podman”....

This is just a quick note on how to run Redis as a container using Podman on Ubuntu 22.04 (i.e. there will be no mention about SELinux.) Create a persistent volume for the Redis container I like storing all data/volume for containers under /srv/data. So I’ll create a sub-directory called redis-data under the same location. # mkdir -p /srv/data/redis-data Pull the Redis image # podman pull docker.io/redis Create and run the Redis container # podman run -d --name redis_server \ -v /srv/data/redis-data:/var/redis/data \ -p 6379:6379 redis Create systemd service for the Redis container I like creating a systemd service to enable/start the container....