docs(token-auth-keycloak): add missing ui in proxy configuration

Author: Joxit

examples/token-auth-keycloak/.gitignore

@@ -1 +1,2 @@
 data/registry/
+data/keycloak/

examples/token-auth-keycloak/conf/proxy/nginx.conf

@@ -34,9 +34,13 @@ server {
       proxy_pass http://keycloak:8080;
     }
 
+    location /ui {
+      proxy_pass http://ui/;
+    }
+
     location / {
-        root   /usr/share/nginx/html;
-        index  index.html index.htm;
+      root   /usr/share/nginx/html;
+      index  index.html index.htm;
     }
 
     #error_page  404              /404.html;

examples/token-auth-keycloak/docker-compose.yml

@@ -25,6 +25,7 @@ services:
     image: joxit/docker-registry-ui:static
     environment:
       REGISTRY_TITLE: My Private Docker Registry
+      URL: http://localhost
     networks:
       - registry-ui-net