deploy-slurm.yml

---
- name: Setup Docker Swarm Cluster and Overlay Network
  hosts: base_machines
  become: yes
  vars_files:
    - secure.yml
    - containers.yml
  gather_facts: yes

  tasks:
    # Initialize Docker Swarm on aegypti (Manager Node)
    - name: Initialize Docker Swarm (on manager node)
      command: docker swarm init
      when: inventory_hostname == 'aegypti'
      register: swarm_init
      ignore_errors: yes

    # Retrieve Swarm Join Token
    - name: Get Docker Swarm join-token for worker
      command: docker swarm join-token -q worker
      register: join_token
      when: inventory_hostname == 'aegypti' 
      changed_when: false

    # Debug: Print Join Token
    - name: Debug join_token
      debug:
        var: join_token
      when: inventory_hostname == 'aegypti' 

    # Join Worker Nodes to Swarm
    - name: Join Docker Swarm (on worker nodes)
      command: "docker swarm join --token {{ hostvars['aegypti']['join_token'].stdout }} {{ hostvars['aegypti']['ansible_default_ipv4']['address'] }}:2377"
      when: inventory_hostname in ['sycorax', 'prospero'] and 'join_token' in hostvars['aegypti']
      ignore_errors: yes

    # Create Overlay Network
    - name: Create Docker Overlay Network
      command: docker network create --driver overlay --attachable test
      when: inventory_hostname == 'aegypti'
      run_once: true