Creating an snpashot of docker container

1 Create and modify the container:

 docker run -it ubuntu /bin/bash

# Make changes (e.g., install curl)

apt update && apt install curl -y

exit

2 Commit the container to an image:

docker commit <container_id> my_custom_ubuntu:v1

3 Save the image to a tarball:

docker save -o my_custom_ubuntu.tar my_custom_ubuntu:v1

4 Transfer the tarball to the new server:

scp my_custom_ubuntu.tar user@new_server:/path/to/destination/

5 Load the image on the new server:

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

6  Start a new container from the image:

docker run -it my_custom_ubuntu:v1 /bin/bash