Docker Image

Export and Import Image

To export and import Docker images, you can follow these steps:

Exporting a Docker Image

Use the docker save command to export a Docker image to a tar file.

docker save -o <path to save tar file> <image name>
# Example:
docker save -o my_image.tar my_docker_image:latest

Importing a Docker Image

Use the docker load command to import a Docker image from a tar file.

docker load -i <path to tar file>
# Example:
docker load -i my_image.tar

Example Workflow

Below is an example workflow for exporting and importing a Docker image.

Step 1: Export the Docker Image

docker save -o my_image.tar my_docker_image:latest

Step 2: Transfer the tar file (e.g., via SCP, FTP, or USB drive)

scp my_image.tar user@remote_host:/path/to/destination

Step 3: Import the Docker Image on the Target Machine

docker load -i /path/to/destination/my_image.tar

This process allows you to export a Docker image from one environment and import it into another, making it portable across different systems.