Update update_primary_nginx.yml - tried with perl

.github/workflows/update_primary_nginx.yml

@@ -19,23 +19,14 @@ 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: |
-          export $(grep -v '^#' .env | xargs)  # Load environment variables
-          envsubst "$(printf '${%s} ' $(env | cut -d= -f1))" < ./nginx_template.txt > temp_default.conf
+
+      # Doesn't work properly, envsubst replaces all instances of $variable and ${variable}, but we want to keep e.g., $host as nginx variables
+      # - name: Create temporary nginx config file
+      #  run: envsubst  < ./nginx_template.txt > temp_default.conf
       # Maybe look at https://www.baeldung.com/linux/envsubst-command to get an idea
-      - name: Check environment variables for Nginx
-        run: |
-          echo "PORT_PREFIX=${PORT_PREFIX}"
-          echo "GROUP_ID=${GROUP_ID}"
-          echo "DEV_POSTFIX=${DEV_POSTFIX}"
 
-      # - name: Create temporary nginx config file
-      #   run: |
-      #     export $(grep -v '^#' .env | xargs)  # Load environment variables
-      #     envsubst "$(printf '${%s} ' PROD_PORT_PREFIX GATEWAY_POSTFIX DEV_PORT_PREFIX STAG_PORT_PREFIX)" < ./nginx_template.txt > temp_default.conf
-      #   - name: Create temporary nginx config file
+      - name: Create temporary nginx config file
+        run: perl -pe 's/\$(\w+)/$ENV{$1} //ge' ./nginx_template.txt > temp_default.conf
 
 
       - name: Copy temporary file to correct place 
@@ -45,10 +36,6 @@ jobs:
         run: cat /etc/nginx/conf.d/default.conf
 
 
-      # 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