Managing container images
In this section, we will see how to find and pull (download) an image in the local system, as well as inspect its contents. When a container is created and run for the first time, Podman takes care of pulling the related image automatically. However, being able to pull and inspect images in advance gives some valuable advantages, the first being that a container executes faster when images are already available in the machine's local store.
As we stated in the previous chapters, containers are a way to isolate processes in a sandboxed environment with separate namespaces and resource allocation.
The filesystem mounted in the container is provided by the OCI image described in Chapter 2, Comparing Podman and Docker .
OCI images are stored and distributed by specialized services called container registries. A container registry stores images and metadata and exposes simple REpresentational State Transfer (REST) application programming interface...
