services:

  vpn:
    image: hwdsl2/ipsec-vpn-server
    container_name: ipsec-vpn-server    
    hostname: ipsec-vpn-server
    environment:
      #- VPN_IPSEC_PSK=3gAW0sDYI2ARSMQIQRa2xpIHb42JS+ImsiHdf3jbTl8 # set a secure psk; e.g. via `openssl rand -base64 32`; only necessary if not IKEv2 only
      #- VPN_USER=vpn # define your vpn username; only necessary if not IKEv2 only
      #- VPN_PASSWORD=Cy7jRPIZGVK7dbAF5v # set a secure vpn password; e.g. via `openssl rand -base64 16`; only necessary if not IKEv2 only
      #- VPN_ADDL_USERS=additional_username_1 additional_username_2 # add additional users; usernames must be separated by spaces, no duplicates allowed
      #- VPN_ADDL_PASSWORDS=additional_password_1 additional_password_2 # define pws for additional users; passwords must be separated by spaces
      #- VPN_ADDL_IP_ADDRS=192.168.42.2 192.168.42.3 # assign static IPs to clients; IKEv2 mode does NOT support this feature
      #- VPN_DNS_SRV1=1.1.1.1 # optionally use custom primary dns server; default is Google DNS
      #- VPN_DNS_SRV2=1.0.0.1 # optionally use custom secondary dns server; default is Google DNS
      #- VPN_CLIENT_NAME=vpnclient # optionally set your first vpn client name; default is vpnclient
      #- VPN_DNS_NAME=vpn.example.com # optionally define dns name
      #- VPN_PUBLIC_IP=103.10.199.1 # optionally define public IP address; this variable has no effect for IKEv2 mode
      - VPN_PROTECT_CONFIG=yes # optionally protect client config files using a random password
      - VPN_IKEV2_ONLY=yes # disable both IPsec/L2TP and IPsec/XAuth modes; only use IKEv2
      #- VPN_DISABLE_IPSEC_L2TP=yes # disable IPsec/L2TP mode
      #- VPN_DISABLE_IPSEC_XAUTH=yes # disable IPsec/XAuth ("Cisco IPsec") mode
    restart: always
    ports:
      - "500:500/udp"
      - "4500:4500/udp"
    expose:
      - 500
      - 4500
    privileged: true
    volumes:
      -  ${DOCKER_VOLUME_STORAGE:-/mnt/docker-volumes}/ipsec-vpn-server/data:/etc/ipsec.d # required to enable IKEv2
      - /lib/modules:/lib/modules:ro # required to pass kernel modules