services:
  keepalived:
    image: osixia/keepalived:latest
    container_name: keepalived
    restart: unless-stopped
    # Must run on host network to manage the interface IP
    network_mode: host
    cap_add:
      - NET_ADMIN
      - NET_BROADCAST
      - NET_RAW
    environment:
      - KEEPALIVED_INTERFACE=eth0 # Check if your LXC interface is eth0
      - KEEPALIVED_ROUTER_ID=51
      - KEEPALIVED_VIRTUAL_IPS=172.16.201.2/24 # THE FLOATING IP
      - KEEPALIVED_PRIORITY=${KEEPALIVED_PRIORITY} # 150 for Master, 100 for Backup
      - KEEPALIVED_PASSWORD=${DNS_ADMIN_PASSWORD}