From df2beb7b1ddb96adba673b0fda55f2106b4608d5 Mon Sep 17 00:00:00 2001
From: Adam French <adam.a.french@outlook.com>
Date: Thu, 20 Nov 2025 22:13:58 +0000
Subject: [PATCH] adding backend port env var to nginx

---
 docker-compose.yml        | 1 +
 nginx/Dockerfile          | 1 +
 nginx/entrypoint.sh       | 4 ++--
 nginx/nginx.conf.template | 2 +-
 4 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/docker-compose.yml b/docker-compose.yml
index e734b31..6d197b0 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -10,6 +10,7 @@ services:
     container_name: nginx
     environment:
       BACKEND_HOST: "${BACKEND_HOST}" # from .env
+      BACKEND_PORT: "${BACKEND_PORT}" # from .env
       DOMAIN: "${DOMAIN}" # from .env
     restart: unless-stopped
     depends_on:
diff --git a/nginx/Dockerfile b/nginx/Dockerfile
index d0a5d7c..bfd6372 100644
--- a/nginx/Dockerfile
+++ b/nginx/Dockerfile
@@ -12,6 +12,7 @@ RUN apt-get update && apt-get install -y gettext-base
 
 # Replace variables at build time
 ENV BACKEND_HOST=backend
+ENV BACKEND_PORT=8080
 ENV DOMAIN=example.com
 
 ENTRYPOINT ["/entrypoint.sh"]
diff --git a/nginx/entrypoint.sh b/nginx/entrypoint.sh
index dbef42f..8faaf52 100755
--- a/nginx/entrypoint.sh
+++ b/nginx/entrypoint.sh
@@ -4,10 +4,10 @@ set -e
 # Check if certificate exists
 if [ -f "/etc/letsencrypt/live/$DOMAIN/fullchain.pem" ] && [ -f "/etc/letsencrypt/live/$DOMAIN/privkey.pem" ]; then
     echo "Certificates found. Using production nginx config."
-    envsubst '$BACKEND_HOST $DOMAIN' < /etc/nginx/nginx.conf.template > /etc/nginx/nginx.conf
+    envsubst '$BACKEND_HOST $BACKEND_PORT $DOMAIN' < /etc/nginx/nginx.conf.template > /etc/nginx/nginx.conf
 else
     echo "Certificates NOT found. Using setup nginx config."
-    envsubst '$BACKEND_HOST $DOMAIN' < /etc/nginx/nginx_setup.conf.template > /etc/nginx/nginx.conf
+    envsubst '$BACKEND_HOST $BACKEND_PORT $DOMAIN' < /etc/nginx/nginx_setup.conf.template > /etc/nginx/nginx.conf
 fi
 
 # Start nginx
diff --git a/nginx/nginx.conf.template b/nginx/nginx.conf.template
index 82df8ef..4551c40 100644
--- a/nginx/nginx.conf.template
+++ b/nginx/nginx.conf.template
@@ -49,7 +49,7 @@ http {
         }
 
         location /posts/ {
-            proxy_pass http://$BACKEND_HOST:8080/posts;
+            proxy_pass http://$BACKEND_HOST:$BACKEND_PORT/posts;
             proxy_set_header Host $host;
             proxy_set_header X-Real-IP $remote_addr;
             proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;