–

Installing Podman

If you need to install Podman from scratch see https://podman.io/getting-started/installation.

My host system is running Alma Linux with podman, cockpit and cockpit-podman pre-installed, you can enable Podman directly from the Cockpit webGUI in the “Podman containers” menu. If you can’t see this you may need to install the cockpit-podman package.

Finding and Pulling Images

$ podman search <search_term> to search for images. You can also use images from Docker Hub or equivalent.
$ podman pull <image_name> to pull images locally
$ podman images lists all locally pulled images

Running a Container

$ podman run -dt --name httpd -p 8080:80/tcp docker.io/library/httpd runs the container with some options:

• -d enabled detached mode
• -t enables an interactive TTY to issue commands in the container enviornment
• –name gives the container a friendly name so we don’t need to use the generated random ID string to refernce the container.
• -p specifics the network ports to be mapped.

$ podman ps lists running containers on the system
$ podman ps -a lists all containers on the system

Managing a Container

$ podman inspect <container_name> | grep lists the details of the container. You can use grep to filter the output.
$ podman logs <container_name> shows the container logs.
$ podman stop <container_name> stops the container.
$ podman restart <container_name> restarts the container.
$ podman rm <container_name> remove the container from the system.
$ podman rmi <image_id> remove the image from the system.
$ podman top <container_name> lists the running processes in the container.
$ podman stats starts a live displayer of container resource usage.