source.json

    {
        "hosts": "mysql-host",
        "username": "mysql-user",
        "password": "mysqlpwd",
        "database": "my-db",
        "port": 3306,
        "tls_skip_verify": true,
        "update_method": {
          "initial_wait_time": 10
        },
        "max_threads": 5,
        "backoff_retry_count": 4,
        "ssh_config": {
          "host": "my-tunnel-host",
          "port": 22,
          "username": "my-tunnel-user",
          "password": "tunnel-password"
        }
    }
    ```