An infra container, also called a pause container, keeps a pod’s Linux namespaces and cgroups open while other containers start and stop. Each pod has its own infra container. section 4.1
When Podman adds a container to a pod, it joins the namespaces and cgroups held by the infra container. Conmon monitors the infra container and every other pod container. section 4.1 section 4.3
Add a container to an existing pod
podman create --pod mypod --name myapp quay.io/rhatdan/myimage
