Backup and Restore

Backup

Backup swarm state and related files

cd /var/lib/docker/
sudo tar -cvzf swarm.tar.gz swarm

Restore

Stop service

sudo systemctl stop docker.socket
sudo systemctl stop docker

Backup folder

sudo mv /var/lib/docker/swarm /var/lib/docker/swarm-bak

Restore files

sudo mkdir /var/lib/docker/swarm
sudo tar -xvzf swarm.tar.gz -C /var/lib/docker/swarm --strip-components=1

Start docker service

sudo systemctl start docker