Replace with the Host-Cronjob

README.md

@@ -33,7 +33,7 @@ Before you begin, ensure you have the following installed:
 3. **Build and run the Docker container:**
 
     ```bash
-    docker-compose up --build
+    docker compose up --build
     ```
 
    This command uses Docker Compose to build and run the container, loading environment variables from the `.env` file.
@@ -47,6 +47,16 @@ Before you begin, ensure you have the following installed:
 - If your application uses additional environment variables, add them to the `.env` file.
 - Customize the Dockerfile or docker-compose.yml if needed.
 
+## Running as a Cronjob
+
+To run your application as a daily cronjob at 6 AM, add the following cronjob entry:
+
+```cron
+0 6 * * * docker compose -f /opt/containers/mail-reminder/docker-compose.yml up --build --exit-code-from go-app
+```
+
+This cronjob will execute the Docker Compose command daily at 6 AM.
+
 ## Contributing
 
 If you'd like to contribute, please fork the repository and create a pull request. Feel free to open an issue if you encounter any problems or have suggestions.

docker-compose.yml

@@ -6,10 +6,4 @@ services:
       context: .
     env_file: .env
     volumes:
-      - /opt/containers/mailu/dav/collection-root:/dav:ro
+      - /opt/containers/mailu/dav/collection-root:/dav:ro
-
-  cron:
-    image: alpine:latest
-    volumes:
-      - ./cron-job.sh:/etc/periodic/daily/cron-job
-    command: ["crond", "-f", "-d", "8"]