Huge improvements for docs (#58)

docs/content/doc/setup/reverse-proxies.md

@@ -0,0 +1,95 @@
+---
+date: "2019-02-12:00:00+02:00"
+title: "Reverse Proxy"
+draft: false
+type: "doc"
+menu:
+  sidebar:
+    parent: "setup"
+---
+
+# Setup behind a reverse proxy which also serves the frontend
+
+These examples assume you have an instance of the backend running on your server listening on port `3456`.
+If you've changed this setting, you need to update the server configurations accordingly.
+
+## NGINX
+
+Below are two example configurations which you can put in your `nginx.conf`:
+
+You may need to adjust `server_name` and `root` accordingly.
+
+### with gzip enabled (recommended)
+
+{{< highlight conf >}}
+gzip  on;
+gzip_disable "msie6";
+
+gzip_vary on;
+gzip_proxied any;
+gzip_comp_level 6;
+gzip_buffers 16 8k;
+gzip_http_version 1.1;
+gzip_min_length 256;
+gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript application/vnd.ms-fontobject application/x-font-ttf font/opentype image/svg+xml;
+
+server {
+    listen       80;
+    server_name  localhost;
+
+    location / {
+        root   /path/to/vikunja/static/frontend/files;
+        try_files $uri $uri/ /;
+        index  index.html index.htm;
+    }
+    
+    location /api/ {
+        proxy_pass http://localhost:3456;
+    }
+}
+{{< /highlight >}}
+
+### without gzip
+
+{{< highlight conf >}}
+server {
+    listen       80;
+    server_name  localhost;
+
+    location / {
+        root   /path/to/vikunja/static/frontend/files;
+        try_files $uri $uri/ /;
+        index  index.html index.htm;
+    }
+    
+    location /api/ {
+        proxy_pass http://localhost:3456;
+    }
+}
+{{< /highlight >}}
+
+## Apache
+
+Put the following config in `cat /etc/apache2/sites-available/vikunja.conf`:
+
+{{< highlight aconf >}}
+<VirtualHost *:80>
+    ServerName localhost
+   
+    <Proxy *>
+      Order Deny,Allow
+      Allow from all
+    </Proxy>
+    ProxyPass /api http://localhost:3456/api
+    ProxyPassReverse /api http://localhost:3456/api
+
+    DocumentRoot /var/www/html
+    RewriteEngine On
+    RewriteRule ^\/?(config\.json|favicon\.ico|css|fonts|images|img|js|api) - [L]
+    RewriteRule ^(.*)$ /index.html [QSA,L]
+</VirtualHost>
+{{< /highlight >}}
+
+**Note:** The apache modules `proxy` and `proxy_http` must be enabled for this.
+
+For more details see the [frontend apache configuration]({{< ref "install-frontend.md#apache">}}).