Docker help

chip

Is it possible to make a backup of all my running docker containers and /or the commands used to create them to migrate to another server? ... if so how?

codelock

@chip said: all my running docker containers

sounds like docker compose?

sive

Docker was made to be portable, look up the networking and volumes attached and you'll be good to go on starting up new containers. Make sure to copy images over if you built them yourself.

rcy026

https://github.com/Red5d/docker-autocompose

babywhale

i have some notes from the past when backing up / restoring containers.

-to backup-
docker run --rm --volumes-from portainer -v $(pwd):/backup busybox tar cvfz /backup/backup.tar /data

-to restore-
docker run --rm --volumes-from portainer -v $(pwd):/backup busybox sh -c "cd /data && tar xvf /backup/backup.tar --strip 1"

hopefully this is helpful!

theraw

create/use a docker private registry push all of them to private registry, pull them from new node. (remember that shared mounts files won't be included)
or manual file (image) transfer.

1q1

#!/bin/bash

# Get a list of all running container IDs
container_ids=$(docker ps -q)

# Iterate through each container
for container_id in $container_ids; do
  # Generate a unique image name based on the container ID
  new_image_name="saved_image_${container_id}"

  # Commit the container to a new image
  docker commit "$container_id" "$new_image_name"

  echo "Saved container $container_id as $new_image_name"
done