How to save a container in Docker?
There are several ways to save containers in Docker, including the following:
- Create a new image: You can create a new image by using the docker commit command while the container is running, this new image contains the container’s file system and application state. For example, you can use the following command to save the container as a new image:
- Create a new image from a container by running the command: docker commit
- Exporting container to file: You can export a container to a tar file using the docker export command, which includes the container’s file system and application state. For example, you can use the following command to export a container to a tar file:
- Save the contents of a container to a file by using the docker export command with the container’s ID and specifying the output file path.
- Docker volumes can be used to store data within containers. Volumes are special directories that can be shared and reused between containers. By mounting a volume into a container, data within the container can be stored on the host machine. For example, the following command can be used to create a volume and mount it into a container:
- Create a new volume with the name specified and then run a container using that volume mapped to a path within the container. Use the image name provided.
Regardless of which method you choose, you can reload and run the container using the corresponding commands or configurations in the future.