What is podman .
What is Podman? Podman is a daemonless container engine for developing, managing, and running OCI Containers on your Linux System. Containers can either be run as root or in rootless mode.

People associate running pods with Kubernetes. And when they run containers in their development runtimes, they do not even think about the role pods could playeven in a localized runtime. Most people coming from the Docker world of running single containers do not envision the concept of running pods. There are several good reasons to consider using pods locally, other than using pods to naturally group your containers.

Podman installation process in centos 8..
sudo dnf -y module disable container-tools
sudo dnf -y install 'dnf-command(copr)'
sudo dnf -y copr enable rhcontainerbot/container-selinux
sudo curl -L -o /etc/yum.repos.d/devel:kubic:libcontainers:testing.repo https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/testing/CentOS_8/devel:kubic:libcontainers:testing.repo

OPTIONAL FOR RUNC USERS: crun will be installed by default. Install runc first if you prefer runc

sudo dnf -y --refresh install runc

Install Podman

sudo dnf -y --refresh install podman