Target host override from env

Author: ajcarpenter

Dockerfile

@@ -1,7 +1,8 @@
 FROM nginx:alpine
 
-ENV HTPASSWD='foo:$apr1$odHl5EJN$KbxMfo86Qdve2FH4owePn.' \
-    FORWARD_PORT=80
+ENV HTPASSWD='foo:$apr1$odHl5EJN$KbxMfo86Qdve2FH4owePn.'
+ENV FORWARD_PORT=80
+ENV TARGET_HOST=web
 
 WORKDIR /opt
 

auth.conf

@@ -5,7 +5,7 @@ server {
      auth_basic              "Restricted";
      auth_basic_user_file    auth.htpasswd;
 
-     proxy_pass                          http://web:${FORWARD_PORT};
+     proxy_pass                          "http://${TARGET_HOST}:${FORWARD_PORT}";
      proxy_read_timeout                  900;
  }
 }

launch.sh

@@ -1,6 +1,6 @@
 #!/bin/sh
 
-envsubst < auth.conf > /etc/nginx/conf.d/auth.conf
+envsubst < auth.conf > /etc/nginx/conf.d/default.conf
 envsubst < auth.htpasswd > /etc/nginx/auth.htpasswd
 
 nginx -g "daemon off;"