Containers and Podman Flashcards

What command builds a container image from a `Containerfile` in the current directory?

Answer: podman build -t myimage .

`podman build -t myimage .` builds an image named `myimage` from the Containerfile in the current directory.

Which command generates a systemd unit file to run a Podman container as a service?

Answer: podman generate systemd mycontainer

`podman generate systemd` creates a systemd unit file for a container that can be enabled to start at boot.

What does the `podman inspect` command return?

Answer: Detailed JSON metadata about a container or image

`podman inspect` outputs detailed JSON metadata including configuration, mounts, network settings, and state of a container or image.

Which file is the Podman/OCI equivalent of a Dockerfile?

Answer: Containerfile

A `Containerfile` is the OCI standard equivalent of a `Dockerfile`, supported natively by Podman and Buildah.

What command stops and removes a running container named `webserver` in one step?

Answer: podman rm -f webserver

`podman rm -f` force-stops and removes a running container in a single command.

Which command mounts a host directory `/data` into a container at `/app/data`?

Answer: podman run -v /data:/app/data myimage

The `-v host_path:container_path` flag creates a bind mount between the host and container directories.