Update update_primary_nginx.yml

.github/workflows/update_primary_nginx.yml

@@ -1,16 +1,17 @@
-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
-      - name: Dotenv Action
+
+      - name: Load environment variables
         uses: falti/dotenv-action@v1.1.4
         with:
           export-variables: true
@@ -19,13 +20,21 @@ 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., $host as nginx variables
-      #- name: Create temporary nginx config file
-      #  run: envsubst  < ./nginx_template.txt > temp_default.conf
-      # Maybe look at https://www.baeldung.com/linux/envsubst-command to get an idea
-
-      - name: Copy temporary file to correct place 
-        run: cp temp_default.conf /etc/nginx/conf.d/default.conf
+      - name: Escape Nginx variables
+        run: sed -i 's/\$http_host/\\$http_host/g; s/\$remote_addr/\\$remote_addr/g; s/\$proxy_add_x_forwarded_for/\\$proxy_add_x_forwarded_for/g' ./nginx_template.txt
+
+      - name: Substitute environment variables
+        run: envsubst '${PROD_PORT_PREFIX} ${GATEWAY_POSTFIX} ${DEV_PORT_PREFIX} ${STAG_PORT_PREFIX}' < ./nginx_template.txt > temp_default.conf
+
+      - name: Copy Nginx config to server
+        run: sudo cp temp_default.conf /etc/nginx/conf.d/default.conf
 
-      - name: Show nginx file
+      - name: Show updated Nginx config
         run: cat /etc/nginx/conf.d/default.conf
+
+      - name: Validate Nginx config
+        run: sudo nginx -t
+
+      - name: Reload Nginx
+        run: sudo systemctl reload nginx
+