How to Install Podman on CentOS 7

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Podman is a daemonless container engine for developing, managing, and running Open Container Initiative (OCI) containers and container images on your Linux System. Podman provides a Docker-compatible command line front end that can simply alias the Docker cli, alias docker=podman.

Installing Podman on CentOS

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yum -y install podman

To check the version of podman.

podman --version

Output:

[root@vps ~]# podman --version
podman version 1.6.4

View installed package details by running the following command.

rpm -qi podman

Output:

[root@vps ~]# rpm -qi podman
Name        : podman
Version     : 1.6.4
Release     : 22.el7_9
Architecture: x86_64
Install Date: Mon 04 Jan 2021 09:47:24 AM EST
Group       : Unspecified
Size        : 61289598
License     : ASL 2.0
Signature   : RSA/SHA256, Mon 09 Nov 2020 08:46:45 AM EST, Key ID 24c6a8a7f4a80eb5

To check the host Information.

podman info

Output:

[root@vps ~]# podman info
host:
  BuildahVersion: 1.11.5
  CgroupVersion: v1
  Conmon:
    package: conmon-2.0.8-1.el7.x86_64
    path: /usr/bin/conmon
    version: 'conmon version 2.0.8, commit: f85c8b1ce77b73bcd48b2d802396321217008762'
  Distribution:
    distribution: '"centos"'
    version: "7"

Download Alpine Image

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Download alpine image by running the following command.

podman pull alpine

Output:

[root@vps ~]# podman pull alpine
Trying to pull registry.access.redhat.com/alpine...
  name unknown: Repo not found
Trying to pull registry.redhat.io/alpine...
  unable to retrieve auth token: invalid username/password: unauthorized: Please login to the Red Hat Registry using your Customer Portal credentials. Further instructions can be found here: https://access.redhat.com/RegistryAuthentication
Trying to pull docker.io/library/alpine...
Getting image source signatures
Copying blob 801bfaa63ef2 done
Copying config 389fef7118 done

Checking List of Downloaded Images

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Check the list of downloaded images by running the following command.

podman images

Output:

[root@vps ~]# podman images
REPOSITORY                 TAG      IMAGE ID       CREATED       SIZE
docker.io/library/alpine   latest   389fef711851   2 weeks ago   5.85 MB