Put back entrypoint (#149)

nginx/Dockerfile

@@ -5,3 +5,8 @@ COPY nginx.conf /etc/nginx/nginx.conf
 COPY src/favicon.ico /usr/share/nginx/html/
 COPY src/index.htm /usr/share/nginx/html/
 COPY src/ttlsh_files /usr/share/nginx/html/ttlsh_files/
+
+ADD entrypoint.sh /entrypoint.sh
+
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["nginx", "-g", "daemon off;"]

nginx/entrypoint.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+set -e
+
+sed -i "s/__PORT__/$PORT/g" /etc/nginx/nginx.conf
+
+exec "$@"

nginx/nginx.conf

@@ -11,7 +11,7 @@ http {
     }
 
     server {
-        listen <%= ENV["PORT"] %>;
+        listen __PORT__;
         server_name _;
 
         location / {