From 70ecf3bf9b1fef949ae79687af97571e6ce9a14d Mon Sep 17 00:00:00 2001
From: Jack Hadrill <jack@hadrill.co.uk>
Date: Wed, 24 Aug 2022 22:26:20 +0000
Subject: [PATCH] Add container port number as an environment variable

---
 Dockerfile    | 1 +
 README.md     | 1 +
 director.conf | 2 +-
 3 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/Dockerfile b/Dockerfile
index 252b29c..e40eb6f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,6 +2,7 @@ FROM nginx:alpine
 
 ENV LISTEN_PORT="80"
 ENV CONTAINER_PREFIX="container"
+ENV CONTAINER_PORT="80"
 ENV SPAWNER_HOST="spawner"
 ENV SPANWER_PORT="80"
 
diff --git a/README.md b/README.md
index 0d1aeb1..0e4394c 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,7 @@ services:
     environment:
       LISTEN_PORT: 80
       CONTAINER_PREFIX: "container"
+      CONTAINER_PORT: 80
       SPAWNER_HOST: "spawner"
       SPANWER_PORT: 80
   ...
diff --git a/director.conf b/director.conf
index 967053d..e521b81 100644
--- a/director.conf
+++ b/director.conf
@@ -5,7 +5,7 @@ server {
     resolver 127.0.0.11 valid=1s;
 
     location / {
-        proxy_pass http://${CONTAINER_PREFIX}$http_x_forwarded_preferred_username$uri;
+        proxy_pass http://${CONTAINER_PREFIX}$http_x_forwarded_preferred_username:${CONTAINER_PORT}$uri;
         error_page 502 = @spawner;
     }