This article describes steps one can take to install Podman on Ubuntu Linux.
Podman (aka, Pod Manager) is an open-source tool designed to make it easy to find, run, build, share, and deploy applications using containers and container images.
If you already use Docker Container Engine and are familiar with the command line, Podman should be easy to get used to. It is part of the lib pod library that doesn’t rely on the Docker daemon and is compatible with Docker.
Below is how to install Podman on Ubuntu Linux.
How to install Podman on Ubuntu Linux
As described above, Podman makes it easy to find, run, build, share, and deploy applications using containers and container images.
Below is how to install and configure it in Ubuntu Linux.
Install Podman from Ubuntu’s Repositories
By default, the Podman packages are included in Ubuntu’s default system repositories.
One can run the commands below to install Podman.
sudo apt update sudo apt install podman
Installing packages from Ubuntu’s repositories may not necessarily be the latest version available since Ubuntu only includes stable, typically older ones.
Once installed, you can run the commands below to view the version installed.
The command above should provide the version number for Podman.
For more detailed information, run the Podman command.
How to configure Podman in Ubuntu Linux
After Podman is installed, you will want to allow it to download container images from the web. It is disabled by default. This can be done via Podman’s registries.conf file.
Run the commands below to open Podman’s registries.conf file.
sudo nano /etc/containers/registries.conf
Then add the following lines in the file and save.
[registries.search] registries=["registry.access.redhat.com", "registry.fedoraproject.org", "docker.io"]
Once the file is updated, you should now be able to download container images.
How to download and manage container images via Podman
As with most container orchestrators, Podman works the same way. To search for images online, run the commands below.
podman search debian
That should provide you with a list of available images you can download.
INDEX NAME DESCRIPTION STARS OFFICIAL docker.io docker.io/library/ubuntu Ubuntu is a Debian-based Linux operating sys... 15005 [OK] docker.io docker.io/library/debian Debian is a Linux distribution that's compos... 4444 [OK] docker.io docker.io/library/neurodebian NeuroDebian provides neuroscience research s... 93 [OK] docker.io docker.io/bitnami/debian-base-buildpack Debian base compilation image 2 [OK] docker.io docker.io/mirantis/debian-build-ubuntu-xenial 0 docker.io docker.io/mirantis/debian-build-ubuntu-trusty 0
You can then use the pull with the Podman command to download images of the OS you mentioned.
podman pull debian
You can manage your containers via Podman, similar to Docker and others.
Once you have downloaded the image, you can create and manage your container using the downloaded image file.
Create a container for Debian:
podman run -dit --name debian-container debian
Connect to your container:
podman attach debian-container
Start, Stop, and Delete your container and image:
podman start debian-container podman stop debian-container podman rm debian-container podman rmi debian
Again, Podman can be a great alternative to Docker and other container managers. Visit the help page above for more information.
That should do it!
This post showed you how to install and manage Podman on Ubuntu Linux. Please use the comment form below if you find any errors above or have something to add.