We will provide a step-by-step guide on how to migrate from Docker to Podman
Docker ♥ Podman In-Depth (2)
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.
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.
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.
Practice migrating a Docker container to Podman
To migrate a Docker container to Podman, you can use the following steps:
- Install Podman on your system.
- Stop the Docker container that you want to migrate.
- Run the following command to export the Docker container to a tar archive:
docker export > .tar
- Run the following command to import the tar archive into Podman:
podman import .tar
- 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 containerspodman start
: Start a containerpodman stop
: Stop a containerpodman rm
: Remove a containerpodman images
: List imagespodman build
: Build an imagepodman push
: Push an image to a registrypodman 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.