ansible-join-workers.yml

- hosts: kube_agents
  become: true
  remote_user: ubuntu

  vars_files:
    - ansible-vars.yml

  tasks: 
    - name: set docker to use systemd cgroups driver
      copy:
        dest: "/etc/docker/daemon.json"
        content: |
          {
            "exec-opts": ["native.cgroupdriver=systemd"]
          }
    
    - name: restart docker
      service:
        name: docker
        state: restarted

    - name: read join command
      debug: msg={{ lookup('file', join_command_location) }}
      register: join_command_local

    - name: show join command
      debug:
        var: join_command_local.msg

    - name: join agents to cluster
      command: "{{ join_command_local.msg }}"