Update tower_tools image to run nginx

tools/docker-compose/nginx.vh.default.conf

@@ -0,0 +1,48 @@
+upstream uwsgi {
+    server tower:8050;
+}
+
+upstream daphne {
+    server tower:8051;
+}
+
+server {
+	listen 8013 default_server;
+	listen 8043 default_server ssl;
+
+	# If you have a domain name, this is where to add it
+    server_name _;
+	keepalive_timeout 70;
+
+	ssl_certificate /etc/nginx/nginx.crt;
+	ssl_certificate_key /etc/nginx/nginx.key;
+	ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
+	ssl_ciphers HIGH:!aNULL:!MD5;
+
+	location /websocket {
+		# Pass request to the upstream alias
+		proxy_pass http://daphne;
+		# Require http version 1.1 to allow for upgrade requests
+		proxy_http_version 1.1;
+		# We want proxy_buffering off for proxying to websockets.
+		proxy_buffering off;
+		# http://en.wikipedia.org/wiki/X-Forwarded-For
+		proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+		# enable this if you use HTTPS:
+		proxy_set_header X-Forwarded-Proto https;
+		# pass the Host: header from the client for the sake of redirects
+		proxy_set_header Host $http_host;
+		# We've set the Host header, so we don't need Nginx to muddle
+		# about with redirects
+		proxy_redirect off;
+		# Depending on the request value, set the Upgrade and
+		# connection headers
+		proxy_set_header Upgrade $http_upgrade;
+		proxy_set_header Connection $connection_upgrade;
+	}      
+
+	location / {
+		include /etc/nginx/uwsgi_params;
+		uwsgi_pass uwsgi;
+	}
+}