# Bump Postgres Version to 17

I will upgrade the Postgres version from `15-alpine` to `17-alpine` in `docker-compose.yml`.

## Changes
-   **File**: `docker-compose.yml`
-   **Action**: Update `image: postgres:15-alpine` to `image: postgres:17-alpine` for both the `db` (Tenant DB) and `control_db` (Control Plane DB) services.

## Important Note on Data
-   **Volume Incompatibility**: Postgres data directories are version-specific. Upgrading the major version (15 -> 17) means the existing data in `madbase_db_data` and `madbase_control_db_data` volumes will **not be compatible**.
-   **Resolution**: You will likely need to delete the existing volumes (`docker-compose down -v`) and let them be recreated, or perform a manual dump/restore if you have critical data.

## Execution Steps
1.  **Update `docker-compose.yml`**: Change the image tag.
2.  **Verify**: I will check the file content after the update.