Route all of the logging through syslog-ng. Add the ability to specify extra syslog-ng config. Simplify the Dockerfile.

conf/init/service/nginx/log/run

@@ -0,0 +1,2 @@
+#!/bin/sh
+exec logger -i -t nginx

conf/init/service/nginx/run

@@ -0,0 +1,14 @@
+#! /bin/bash
+
+echo 'Starting nginx'
+
+if [ -f /conf/stack/ssl.key ]
+then
+  echo "Using HTTPS"
+  /usr/local/nginx/sbin/nginx -c /conf/nginx.conf
+else
+  echo "No SSL key provided, using HTTP"
+  /usr/local/nginx/sbin/nginx -c /conf/nginx-nossl.conf
+fi
+
+echo 'Nginx exited'