Docker salt formula

This formula installs and configures Docker.

States

docker

Install docker, configure daemon.json according to the information in Salt pillar. See pillar.example for configuration options.

docker.prune

Setup a systemd timer that cleans up unused and dangling images every night by running docker system prune --force --all automatically.

docker.compose

Install docker-compose package.

Bootstrap cluster

This state configures Docker and Swarm. It defaults to use the interface eth0 for internal communication. The interface can be adjusted using the Pillar:

docker:
  swarm:
    interface: ens3

# Bootstrap the cluster
sudo salt-run state.orch docker.orch.bootstrap-swarm pillar='{"leader": "$leader", "nodes": ["$2nd_node", "3rd_node"]}'