Ansible Role: Docker Swarm

This Ansible role sets up a Docker Swarm.

Requirements

• You need to have docker installed on all hosts.
• You also need python-docker installed on all hosts.
• If you're using Debian 10 or Ubuntu 18.04, you need python-six.

You can meet these requirements by following this example:

- hosts: all
  roles:
    - role: geerlingguy.docker
    - role: geerlingguy.pip
      vars:
        pip_install_packages:
          - name: docker

Role Variables

Here are the variables you can use, along with their default values:

docker_swarm_network_interface: eth0
docker_swarm_port: 2377

You need a main node to create the cluster, called the primary master. You can set its name using the docker_swarm_primary_master_name variable. The name should match the Ansible inventory node name. By default, the first host listed in your playbook will be used as the primary master.

Usage

Include this role in your playbook to make all the specified hosts part of the Docker Swarm cluster. The first host in your inventory will be the one used to connect the other hosts.

Example Playbook

- hosts: all
  roles:
     - role: fgierlinger.docker_swarm

License

MIT

Author Information

Frédéric Gierlinger