diff --git a/CI_CD_PIPELINE_SETUP_GUIDE.md b/CI_CD_PIPELINE_SETUP_GUIDE.md
index 2571d23..f03a353 100644
--- a/CI_CD_PIPELINE_SETUP_GUIDE.md
+++ b/CI_CD_PIPELINE_SETUP_GUIDE.md
@@ -1003,12 +1003,7 @@ docker rmi YOUR_DOMAIN_NAME/APP_NAME/unauthorized:latest
 exit
 ```
 
-**Important**: For Option B, you'll also need to update the registry config file to use your domain:
-
-```bash
-# Update registry config for domain-based setup
-sudo sed -i "s/YOUR_ACTUAL_IP_ADDRESS/YOUR_DOMAIN_NAME/g" /opt/APP_NAME/registry/config.yml
-```
+**Important**: For Option B, the registry configuration is handled via environment variables in the Docker Compose file, so no additional configuration changes are needed.
 
 **Expected behavior**:
 - ✅ Push requires authentication with `registry-user` credentials on port 4443
diff --git a/registry/README.md b/registry/README.md
index 7b2b14a..cc649be 100644
--- a/registry/README.md
+++ b/registry/README.md
@@ -6,7 +6,7 @@ This folder contains the configuration files for the Docker Registry setup used
 
 - **`docker-compose.registry.yml`**: Docker Compose configuration for the registry and Caddy reverse proxy
 - **`Caddyfile`**: Caddy configuration for HTTPS and authentication
-- **`config.yml`**: Docker Registry configuration file
+- **`docker-registry.service`**: Systemd service file for Docker Registry
 - **`README.md`**: This documentation file
 
 ## Architecture
@@ -14,7 +14,7 @@ This folder contains the configuration files for the Docker Registry setup used
 The registry setup uses:
 - **Docker Registry**: Basic registry for storing Docker images
 - **Caddy**: Reverse proxy with automatic HTTPS and authentication
-- **Environment Variables**: For authentication credentials
+- **Environment Variables**: For authentication credentials and registry configuration
 - **Service User**: The registry and Caddy services run as the existing `CI_SERVICE_USER` (not a separate registry user)
 
 ## Authentication Model
@@ -38,11 +38,12 @@ The registry setup uses:
 ## Configuration
 
 The setup is configured through:
-1. **Environment Variables**: Stored in `.env` file (created during setup)
-2. **Caddyfile**: Handles HTTPS and authentication
-3. **Docker Compose**: Orchestrates the registry and Caddy services
-4. **Registry Config**: `config.yml` contains the Docker Registry configuration
-5. **User/Permissions**: All files and services are owned and run by `CI_SERVICE_USER` for consistency and security
+1. **Environment Variables**: Stored in `.env` file (created during setup) for authentication
+2. **Docker Compose Environment**: Registry configuration via environment variables
+3. **Caddyfile**: Handles HTTPS and authentication
+4. **Docker Compose**: Orchestrates the registry and Caddy services
+5. **Systemd Service**: Manages the Docker Registry service lifecycle
+6. **User/Permissions**: All files and services are owned and run by `CI_SERVICE_USER` for consistency and security
 
 ## Usage
 
diff --git a/registry/config.yml b/registry/config.yml
deleted file mode 100644
index 09d7a38..0000000
--- a/registry/config.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-version: 0.1
-log:
-  level: debug
-storage:
-  filesystem:
-    rootdirectory: /var/lib/registry
-  delete:
-    enabled: true
-http:
-  addr: :5000
-  headers:
-    X-Content-Type-Options: [nosniff]
\ No newline at end of file