Navigate to “**Custom spark-defaults**” to configure MinIO parameters for `_s3a_` connector

![spark-config](https://github.com/minio/minio/blob/master/docs/bigdata/images/image9.png?raw=true "spark defaults")

Add the following optimal entries for _spark-defaults.conf_ to configure Spark with **MinIO**.

```
spark.hadoop.fs.s3a.access.key minio

    echo list-templates     Print all available template names
    echo help               Print this message
    echo.
    echo Options:
    echo -jvm-debug [port]  Turn on JVM debugging, open at the given port.  Defaults to 9999 if no port given.
    echo.
    echo Environment variables ^(read from context^):
    echo JAVA_OPTS          Environment variable, if unset uses ""
    echo SBT_OPTS           Environment variable, if unset uses ""

  // Refer to the specific FSGroupPolicy values for additional details.
  //
  // This field is immutable.
  //
  // Defaults to ReadWriteOnceWithFSType, which will examine each volume
  // to determine if Kubernetes should modify ownership and permissions of the volume.
  // With the default policy the defined fsGroup will only be applied
  // if a fstype is defined and the volume's access mode contains ReadWriteOnce.
  //

       * ```
       */
      BODY,
    }

    fun interface Logger {
      fun log(message: String)

      companion object {
        /** A [Logger] defaults output appropriate for the current platform. */
        @JvmField
        val DEFAULT: Logger = DefaultLogger()

        private class DefaultLogger : Logger {
          override fun log(message: String) {
            Platform.get().log(message)
          }

MINIO_IDENTITY_OPENID_CLAIM_NAME            (string)    JWT canned policy claim name (default: 'policy')
MINIO_IDENTITY_OPENID_SCOPES                (csv)       Comma separated list of OpenID scopes for server, defaults to advertised scopes from discovery document e.g. "email,admin"

        "regex": "",
        "skipUrlSync": false,
        "type": "datasource"
      },
      {
        "current": {
          "selected": true,
          "text": "default",
          "value": "default"
        },
        "datasource": {
          "type": "prometheus",
          "uid": "${datasource}"
        },
        "definition": "",
        "hide": 0,

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  // `lendablePercent` prescribes the fraction of the level's NominalCL that
  // can be borrowed by other priority levels. The value of this
  // field must be between 0 and 100, inclusive, and it defaults to 0.
  // The number of seats that other levels can borrow from this level, known
  // as this level's LendableConcurrencyLimit (LendableCL), is defined as follows.
  //
  // LendableCL(i) = round( NominalCL(i) * lendablePercent(i)/100.0 )
  //

<img src="/img/tutorial/query-params-str-validations/image02.png">

### Query-Parameter-Liste / Mehrere Werte mit Defaults

Und Sie können auch eine Default-`list`e von Werten definieren, wenn keine übergeben werden:

//// tab | Python 3.9+

```Python hl_lines="9"
{!> ../../docs_src/query_params_str_validations/tutorial012_an_py39.py!}
```

                default: 32
                description: The aggregation-length advertisement option lets you
                  “roll up” the /32s into a larger prefix. Defaults to 32. Works for
                  IPv4 addresses.
                format: int32
                minimum: 1
                type: integer
              aggregationLengthV6:
                default: 128