How to retain data when migrating docker containers?

2 years ago
Benjamin Taylor
2 minutes

To preserve the data of Docker containers and migrate it, you can use the following methods:

  1. export container in Docker
  2. the name of the container
docker export -o container_data.tar container_name

Next, you can copy the tar file to the new Docker host and import it as a new image using the docker import command.

docker import container_data.tar new_image_name

Finally, use the new image to create a new container and retain the imported data within it.

  1. Please just give one response.
  2. name of the container
  3. The location of the host directory is specified by the file path.
  4. the directory that contains the container
docker run -v /path/to/host_directory:/path/to/container_directory container_name

When migrating containers, all you need to do is copy the data directory from the host to the new Docker host, and then recreate the container using the same command.

  1. Utilizing third-party tools: Additionally, there are some third-party tools available for container migration and data retention, such as Docker Compose, Kubernetes, and others. These tools offer more advanced container orchestration and management capabilities, making it easier to perform container migration and data retention.

No matter which method you choose, make sure to backup important data before migrating containers and test the migration process to ensure the integrity and consistency of the data.

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