---
- name: Correct Nomad Cluster Configuration
  hosts: nomad_cluster
  become: yes
  gather_facts: yes
  vars:
    nomad_encrypt_key: "NVOMDvXblgWfhtzFzOUIHnKEOrbXOkPrkIPbRGGf1YQ="
    tailscale_ips:
      semaphore: "100.116.158.95"
      master: "100.117.106.136"
      ash3c: "100.116.80.94"

  tasks:
    - name: Stop nomad service
      systemd:
        name: nomad
        state: stopped
      ignore_errors: yes

    - name: Clean nomad data
      file:
        path: /opt/nomad/data
        state: absent

    - name: Recreate nomad data directory
      file:
        path: /opt/nomad/data
        state: directory
        owner: nomad
        group: nomad
        mode: '0755'

    - name: Create correct nomad configuration
      copy:
        content: |
          datacenter = "dc1"
          region     = "global"
          data_dir   = "/opt/nomad/data"

          bind_addr = "{{ tailscale_ips[inventory_hostname] }}"

          server {
            enabled          = true
            bootstrap_expect = 3
            encrypt          = "{{ nomad_encrypt_key }}"
            
            server_join {
              retry_join = [
                "{{ tailscale_ips.semaphore }}:4647",
                "{{ tailscale_ips.master }}:4647",
                "{{ tailscale_ips.ash3c }}:4647"
              ]
              retry_interval = "15s"
              retry_max      = 3
            }
          }

          client {
            enabled = true
            alloc_dir = "/opt/nomad/alloc_mounts"
          }

          ui {
            enabled = true
          }

          addresses {
            http = "0.0.0.0"
            rpc  = "{{ tailscale_ips[inventory_hostname] }}"
            serf = "{{ tailscale_ips[inventory_hostname] }}"
          }

          ports {
            http = 4646
            rpc  = 4647
            serf = 4648
          }

          plugin "docker" {
            config {
              allow_privileged = true
              volumes {
                enabled = true
              }
            }
          }

          log_level = "INFO"
          log_file  = "/var/log/nomad/nomad.log"
        dest: /etc/nomad.d/nomad.hcl
        owner: nomad
        group: nomad
        mode: '0640'

- name: Start nomad services in sequence
  hosts: nomad_cluster
  become: yes
  serial: 1
  tasks:
    - name: Start nomad service
      systemd:
        name: nomad
        state: started
        daemon_reload: yes

    - name: Wait for nomad to start
      wait_for:
        port: 4646
        host: "{{ tailscale_ips[inventory_hostname] }}"
        delay: 10
        timeout: 60

    - name: Wait between nodes
      pause:
        seconds: 30