Implemented federation for matrix

roles/docker-matrix-compose/templates/nginx.conf.j2

@@ -0,0 +1,29 @@
+server {
+    server_name {{domain}};
+    {% include 'roles/letsencrypt/templates/ssl_header.j2' %}
+    
+    # For the federation port
+    listen 8448 ssl http2 default_server;
+    listen [::]:8448 ssl http2 default_server;
+
+    {% if nginx_matomo_tracking | bool %}
+        {% include 'roles/nginx-matomo-tracking/templates/matomo-tracking.conf.j2' %}
+    {% endif %}
+
+    location ~ ^(/_matrix|/_synapse/client) {
+        # note: do not add a path (even a single /) after the port in `proxy_pass`,
+        # otherwise nginx will canonicalise the URI and cause signature verification
+        # errors.
+        proxy_pass http://127.0.0.1:{{http_port}};
+        proxy_set_header X-Forwarded-For $remote_addr;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_set_header Host $host;
+
+        # Nginx by default only allows file uploads up to 1M in size
+        # Increase client_max_body_size to match max_upload_size defined in homeserver.yaml
+        client_max_body_size 50M;
+    
+    # Synapse responses may be chunked, which is an HTTP/1.1 feature.
+    proxy_http_version 1.1;
+    }
+}