Configures a Docker Swarm cluster.
docker
installed on hosts
# Port docker swarm will communicate on
docker_swarm_port: 2377
# Network interface to use
docker_swarm_network_interface: "eth0"
When starting a docker swarm the following ports must be open:
- 2377/tcp (
docker_swarm_port
) - 7946/tcp
- 7946/udp
- 4789/udp
- 50/esp
This information can be found on docker's documentation.
This role configures hosts in group docker_swarm_manager
to be manager nodes and hosts in group docker_swarm_worker
to be worker nodes:
[docker_swarm_manager]
server1
server2
[docker_swarm_worker]
server3
server4
Swarm labels can be added to nodes by setting the docker_swarm_label
to a list of strings:
...
[docker_swarm_manager]
server1 docker_swarm_labels="{'db':'true'}"
server2 docker_swarm_labels="{'dog':'big'}"
[docker_swarm_worker]
server3 docker_swarm_labels="{'docker':'17.12', 'type':'queue'}"
server4
...
MIT