Update update_primary_nginx.yml

.github/workflows/update_primary_nginx.yml

@@ -1,4 +1,4 @@
-name: UNFINISHED - setup nginx from the configuration file
+name: Setup NGINX from the configuration file
 
 on:
   workflow_dispatch:
@@ -10,7 +10,8 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@v3
-      - name: Dotenv Action
+
+      - name: Load environment variables
         uses: falti/dotenv-action@v1.1.4
         with:
           export-variables: true
@@ -19,13 +20,18 @@ jobs:
       - name: Check environment variables
         run: env
 
-      #Doesn't work properly, envsubst replaces all instances of $variable and ${variable}, but we want to keep e.g., $host as nginx variables
-      #- name: Create temporary nginx config file
-      #  run: envsubst  < ./nginx_template.txt > temp_default.conf
-      # Maybe look at https://www.baeldung.com/linux/envsubst-command to get an idea
-
-      - name: Copy temporary file to correct place 
-        run: cp temp_default.conf /etc/nginx/conf.d/default.conf
+      - name: Create temporary nginx config file
+        run: |
+          # Define the list of variables to replace
+          VARIABLES_TO_REPLACE="BACKEND_HOST FRONTEND_HOST GATEWAY_PORT"
+          # Use envsubst to replace only the specified variables
+          envsubst "$VARIABLES_TO_REPLACE" < ./nginx_template.txt > temp_default.conf
+
+      - name: Copy temporary file to correct place
+        run: sudo cp temp_default.conf /etc/nginx/conf.d/default.conf
 
       - name: Show nginx file
         run: cat /etc/nginx/conf.d/default.conf
+
+      - name: Reload NGINX
+        run: sudo nginx -s reload