provision.sh

@@ -1,2 +1 @@
-#!/bin/env fish
 ANSIBLE_VAULT_PASSWORD_FILE=(pass show ansible-homelab | psub) vagrant provision

roles/authelia/templates/authelia-auth.conf.j2

@@ -1,5 +1,14 @@
-auth_request /authelia/api/verify;
+# Basic Authelia Config
+# Send a subsequent request to Authelia to verify if the user is authenticated
+# and has the right permissions to access the resource.
+auth_request /authelia;
+# Set the `target_url` variable based on the request. It will be used to build the portal
+# URL with the correct redirection parameter.
 auth_request_set $target_url $scheme://$http_host$request_uri;
+# Set the X-Forwarded-User and X-Forwarded-Groups with the headers
+# returned by Authelia for the backends which can consume them.
+# This is not safe, as the backend must make sure that they come from the
+# proxy. In the future, it's gonna be safe to just use OAuth.
 auth_request_set $user $upstream_http_remote_user;
 auth_request_set $groups $upstream_http_remote_groups;
 auth_request_set $name $upstream_http_remote_name;
@@ -8,4 +17,7 @@ proxy_set_header Remote-User $user;
 proxy_set_header Remote-Groups $groups;
 proxy_set_header Remote-Name $name;
 proxy_set_header Remote-Email $email;
-error_page 401 =302 https://$http_host/authelia/?rd=$target_url;
+# If Authelia returns 401, then nginx redirects the user to the login portal.
+# If it returns 200, then the request pass through to the backend.
+# For other type of errors, nginx will handle them as usual.
+error_page 401 =302 https://auth.{{ base_domain }}/?rd=$target_url;

roles/authelia/templates/authelia-endpoint.conf.j2

@@ -1,17 +1,10 @@
-location ^~ /authelia {
-    include /etc/nginx/snippets/proxy.conf;
-    set $upstream_authelia authelia;
-    proxy_pass http://$upstream_authelia:9091;
-}
+set $upstream_authelia http://authelia:9091/api/verify;
 
-location = /authelia/api/verify {
+# Virtual endpoint created by nginx to forward auth requests.
+location /authelia {
     internal;
-    if ($request_uri ~ [^a-zA-Z0-9_+-=\!@$%&*?~.:#'\;\(\)\[\]]) {
-        return 401;
-    }
-    set $upstream_authelia authelia;
     proxy_pass_request_body off;
-    proxy_pass http://$upstream_authelia:9091;
+    proxy_pass $upstream_authelia;
     proxy_set_header Content-Length "";
 
     # Timeout if the real server is dead
@@ -26,11 +19,11 @@ location = /authelia/api/verify {
     proxy_set_header Host $host;
     proxy_set_header X-Original-URL $scheme://$http_host$request_uri;
     proxy_set_header X-Real-IP $remote_addr;
-    proxy_set_header X-Forwarded-For $remote_addr;
     proxy_set_header X-Forwarded-Method $request_method;
     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-For $remote_addr;
     proxy_set_header X-Forwarded-Ssl on;
     proxy_redirect  http://  $scheme://;
     proxy_http_version 1.1;

roles/authelia/templates/authelia.conf.j2

@@ -9,8 +9,8 @@ server {
     listen 443 ssl http2;
 
     location / {
-        include /etc/nginx/snippets/proxy.conf;
         set $upstream_authelia http://authelia:9091; # This example assumes a Docker deployment
         proxy_pass $upstream_authelia;
+        include /etc/nginx/snippets/proxy.conf;
     }
 }

roles/authelia/templates/configuration.yml.j2

@@ -27,8 +27,12 @@ authentication_backend:
 access_control:
   default_policy: deny
   rules:
-    - domain: "*.{{ base_domain }}"
-      policy: bypass
+    - domain:
+      - "{{ base_domain }}"
+      - "*.{{ base_domain }}"
+      - "keycloak.{{ base_domain }}"
+      policy: deny
+session:
   name: authelia_session
   secret: somerandomsecret
   expiration: 1h

vault/passwords.yml

@@ -1,19 +1,19 @@
 $ANSIBLE_VAULT;1.1;AES256
-35356537316639386637316365393533643061363734323630393363313237643935666639653963
-3734376266353938653631323266663139306335646635660a373233663964623335663366333434
-34386136656530386639646234316238326132616131616632346537613963636637393839613661
-6366326639643632320a386436316165343166366134633464393461653434323934326238313430
-39323439306637306134326635323138616337646336653238636539643538613664303764303661
-39636661353538393532663937396363656664613334383261336664336237356366663334633430
-36356235383930653835393439373737623036613565313131626462363034303062323662663832
-66613833613336646633383835653161386363386136663764653734313763383231626434393864
-63313061346335383933623630396336336561633938613237643238616531343766613734666132
-32306362616131396266656162653563356137383239616464306662643032623438373764306361
-32363133626662633435626232653061373831626563323861626635383039613136303632613335
-61363265316534653033393763646565393330633063323634353932353936303638356433306362
-65383938306637333765383263653939633964613230613835326630313761323561376162646439
-62323035323634323766393233326363383364653531306432663263303831623936616139306639
-64303863386265343165666435363761653464386366636366323261353731643263356635383536
-66326666616339653731633530663161363933383334376238313637356331663431336433643338
-64313861306161373538363332663363623131303561373237326436373838393965306663333835
-3764356534323963303832653964666431626538316361613137
+30346235333931303864373164626134343138306564323034633139363931653066326263333063
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+31643064623563656438613665393332656435636233623265323063366139643937633132656337
+65326137396134333230616262333337373833663439313635663438396461373130396332316331
+66613933343365363335653135663237363538353863623534373563626166313034323039396334
+61383766343264313438353261306233373562343939663232383466336232373865356561316139
+38316466306531326165343265393262646463626563306363353765343462316534323336356432
+34373661363562636137393235323839616430376163393362313363626636343064663739313963
+3361333438346265623738393431346433353436666262396264