setup nginx configuration

.github/workflows/update_primary_nginx.yml

@@ -1,12 +1,12 @@
-name: UNFINISHED - setup nginx from the configuration file
+name: setup nginx from the configuration file
 
 on:
   workflow_dispatch:
 
 jobs:
   deploy:
     runs-on: self-hosted
-      
+
     steps:
       - name: Checkout repository
         uses: actions/checkout@v3
@@ -19,13 +19,15 @@ 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., $host as nginx variables
-      #- name: Create temporary nginx config file
-      #  run: envsubst  < ./nginx_template.txt > temp_default.conf
-      # Maybe look at https://www.baeldung.com/linux/envsubst-command to get an idea
-
-      - name: Copy temporary file to correct place 
-        run: cp temp_default.conf /etc/nginx/conf.d/default.conf
+      - name: Create temporary nginx config file
+        run: |
+          envsubst '$PROD_PORT_PREFIX $GATEWAY_POSTFIX $DEV_PORT_PREFIX $STAG_PORT_PREFIX' < ./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
+        run: sudo cat /etc/nginx/conf.d/default.conf
+
+      - name: Reload Nginx
+        run: sudo systemctl reload nginx