infra/roles/authelia/templates/01-authelia.conf.j2

server {

  listen 443 ssl http2;
  {% if inventory_hostname in wg_clients -%}
  listen {{ wg_clients[inventory_hostname].ip }}:443 ssl http2;
  {% endif -%}


  include listen-proxy-protocol.conf;
  server_name {{ authelia_login_url }};

  ssl_session_timeout 5m;
  ssl_certificate /usr/local/etc/certs/{{ authelia_login_url }}/fullchain.pem;
  ssl_certificate_key /usr/local/etc/certs/{{ authelia_login_url }}/privkey.pem;

  if ( $request_method !~ ^(GET|POST|HEAD)$ ) {
    return 405;
  }

  include /etc/nginx/sudo-known.conf;

  location / {

    proxy_pass         http://{{ bridgewithdns.authelia }}:{{ authelia_port }};

    client_body_buffer_size 128k;

    proxy_next_upstream error timeout invalid_header http_500 http_502 http_503;

    send_timeout 5m;
    proxy_read_timeout 360;
    proxy_send_timeout 360;
    proxy_connect_timeout 360;

    # Basic Proxy Config
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_set_header X-Forwarded-Host $http_host;
    proxy_set_header X-Forwarded-Uri $request_uri;
    proxy_set_header X-Forwarded-Ssl on;
    proxy_redirect  http://  $scheme://;
    proxy_http_version 1.1;
    proxy_set_header Connection "";
    proxy_cache_bypass $cookie_session;
    proxy_no_cache $cookie_session;
    proxy_buffers 64 256k;
  }

  # the robots.txt file that authelia serves allows search engine
  location = /robots.txt {
      alias {{ systemuserlist.authelia.home }}/robots.txt;
  }

  # swagger: https://login.sudo.is/api/#/
  location /api/verify {
    return 403;
  }
  # only returns {"status": "OK"}, which is also included in /api/state anyway, which clients
  # seem to access according to logs so cant deny those requests.
  # location /api/health {
  #   return 403;
  # }

  access_log /var/log/nginx/access_{{ authelia_login_url }}.log main;
  error_log /var/log/nginx/error_{{ authelia_login_url }}.log warn;

  {# add_header Referrer-Policy "no-referrer" always;
   # add_header X-Content-Type-Options "nosniff" always;
   # add_header X-Download-Options "noopen" always;
   # add_header X-Frame-Options "SAMEORIGIN" always;
   # add_header X-Permitted-Cross-Domain-Policies "none" always;
   # add_header X-Robots-Tag "none" always;
   # add_header X-XSS-Protection "1; mode=block" always;
   #
   # fastcgi_hide_header X-Powered-By; #}
}

server {

  {% if inventory_hostname in wg_clients -%}
  listen {{ wg_clients[inventory_hostname].ip }}:443 ssl http2 default_server;
  {% endif -%}

  allow 127.0.0.1/32;
  {% for cidr in my_local_cidrs -%}
  allow {{ cidr }};
  {% endfor -%}
  {% for name, ip in my_public_ips.items() -%}
  #allow {{ ip }}/32; # {{ name }}
  {% endfor %}


  deny all;

  server_name {{ authelia_api_url }};

  include /etc/nginx/sudo-known.conf;

  # internal traffic only, does not go over lb for now, so wildcard is fine
  ssl_session_timeout 5m;
  ssl_certificate /usr/local/etc/certs/{{ domain }}/fullchain.pem;
  ssl_certificate_key /usr/local/etc/certs/{{ domain }}/privkey.pem;

  location / {
    return 404;
  }

  location /metrics {
    proxy_pass         http://{{ bridgewithdns.authelia}}:{{ authelia_port_metrics }};

    proxy_redirect     off;
    proxy_set_header   Host $host;
    proxy_set_header   X-Real-IP $remote_addr;
    proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header   X-Forwarded-Host $server_name;

  }

  location /api {
    proxy_pass         http://{{ bridgewithdns.authelia}}:{{ authelia_port }};

    proxy_redirect     off;
    proxy_set_header   Host $host;
    proxy_set_header   X-Real-IP $remote_addr;
    proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header   X-Forwarded-Host $server_name;

  }

  # https://www.authelia.com/docs/deployment/supported-proxies/nginx.html
  location /api/verify {
    proxy_pass         http://{{ bridgewithdns.authelia }}:{{ authelia_port }};

    # [REQUIRED] Needed by Authelia to check authorizations of the resource.
    # Provide either X-Original-URL and X-Forwarded-Proto or
    # X-Forwarded-Proto, X-Forwarded-Host and X-Forwarded-Uri or both.
    # Those headers will be used by Authelia to deduce the target url of the user.
    # Basic Proxy Config
    client_body_buffer_size 128k;
    #proxy_set_header X-Original-URL $scheme://$http_host$request_uri;
    proxy_set_header X-Forwarded-Method $request_method;
    #proxy_set_header Host $host;
    #proxy_set_header X-Real-IP $remote_addr;
    #proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_set_header X-Forwarded-Host $http_host;
    proxy_set_header X-Forwarded-Uri $request_uri;
    #proxy_set_header X-Forwarded-Ssl on;
    #proxy_redirect  http://  $scheme://;
    #proxy_http_version 1.1;
    #proxy_set_header Connection "";
    #proxy_cache_bypass $cookie_session;
    #proxy_no_cache $cookie_session;
    #proxy_buffers 64 256k;

    # Advanced Proxy Config
    send_timeout 5m;
    #proxy_read_timeout 240;
    #proxy_send_timeout 240;
    #proxy_connect_timeout 240;

    # fc00::7 is local unicast and
    #set_real_ip_from fc00::/7;
    {% for cidr in my_local_cidrs -%}
    #set_real_ip_from {{ cidr }};
    {% endfor -%}
    #real_ip_header X-Forwarded-For;
    #real_ip_recursive on;

  }

  access_log /var/log/nginx/access_{{ authelia_api_url }}.log main;
  error_log /var/log/nginx/error_{{ authelia_api_url }}.log warn;
}