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Migration Docker To Podman

Programming

We will provide a step-by-step guide on how to migrate from Docker to Podman

Table of Contents

Create migration plan from Docker to Podman

Assessing Your Needs

Before you start migrating from Docker to Podman, it’s important to assess your needs and make sure that Podman is the right choice for you.

Podman is a more lightweight and secure option than Docker, but it may not have all of the features that you’re used to.

Make sure to do your research and compare the two platforms before making a decision.

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Backing Up Your Data

Once you’ve decided to migrate to Podman, the first step is to back up your data. This will ensure that you don’t lose any important data if something goes wrong during the migration process.

You can use the docker export command to export your containers to a tar file.

Once you’ve exported your containers, you can use the podman import command to import them into Podman.

DockerExport

Migrating Your Containers

After backed up your data, you can start migrating your containers from Docker to Podman.

You can use the docker inspect command to get the configuration details for your containers.

Once you have the configuration details, you can use the podman create command to create new containers in Podman.

You can then use the podman cp command to copy the data from your old containers to your new containers.

DockerInspect

Testing Your Migration

It’s important to test them to make sure that they’re working properly.

You can use the podman run command to run your containers and test their functionality.

Once you’ve tested your containers, you can start using Podman to manage your containers on a day-to-day basis.

PodmanBuild

Practice migrating a Docker container to Podman

To migrate a Docker container to Podman, you can use the following steps:

  1. Install Podman on your system.
  2. Stop the Docker container that you want to migrate.
  3. Run the following command to export the Docker container to a tar archive:
docker export > .tar
  1. Run the following command to import the tar archive into Podman:
podman import .tar
  1. Start the Podman container.

You can now use Podman to manage your migrated container.

Podman provides a similar set of commands to Docker, so you can easily transition to using Podman.

Managing Migrated Containers with Podman

Once you have migrated your Docker containers to Podman, you can use the following commands to manage them:

  • podman ps: List running containers
  • podman start : Start a container
  • podman stop : Stop a container
  • podman rm : Remove a container
  • podman images: List images
  • podman build: Build an image
  • podman push: Push an image to a registry
  • podman pull: Pull an image from a registry

Podman also provides a number of other features, such as support for volumes, networks, and secrets.

You can find more information about Podman in the documentation.