*
   * Note that the list of proxies is never null, but it may be a list containing
   * only [Proxy.NO_PROXY]. This comes up in several situations:
   *
   * * If neither a proxy nor proxy selector is configured.
   * * If the proxy is configured explicitly as [Proxy.NO_PROXY].
   * * If the proxy selector returns only [Proxy.NO_PROXY].
   * * If the proxy selector returns an empty list or null.
   *

### 6. Configure Grafana

After Prometheus is configured, you can use Grafana to visualize MinIO metrics. Refer the [document here to setup Grafana with MinIO prometheus metrics](https://github.com/minio/minio/blob/master/docs/metrics/prometheus/grafana/README.md).

        orig.setSubject(presetSubject);

        // Try to get a Subject, but handle the case where JAAS may not be configured
        Subject first = orig.getSubject();
        // In test environments, getSubject() may return null if JAAS is not configured
        // This is acceptable behavior - the test should focus on the cloning logic

        // Clone and verify basic fields copied

     * @return a new CurlRequest object configured with the PUT method and the specified URL
     */
    public static CurlRequest put(final String url) {
        return new CurlRequest(Method.PUT, url);
    }

    /**
     * Creates a new CurlRequest with the DELETE method for the specified URL.
     *
     * @param url the URL to which the DELETE request will be sent

     * <p>
     * The serialization method used depends on the configured serializer type.
     * Supported types are Kryo and JavaBin serialization.
     * </p>
     *
     * @param obj the object to serialize
     * @return the serialized object as a byte array
     * @throws IllegalArgumentException if an unsupported serializer type is configured
     * @throws IORuntimeException if an I/O error occurs during serialization

### Certificate Directory

     */
    public SsoManager() {
        // Default constructor
    }

    /**
     * Checks whether SSO authentication is available and configured.
     *
     * @return true if SSO is configured and available, false otherwise
     */
    public boolean available() {
        final String ssoType = getSsoType();
        if (logger.isDebugEnabled()) {

## Liveness probe

This probe always responds with '200 OK'. Only fails if 'etcd' is configured and unreachable. When liveness probe fails, Kubernetes like platforms restart the container.

```
livenessProbe:
  httpGet:
    path: /minio/health/live
    port: 9000
    scheme: HTTP
  initialDelaySeconds: 120

**NOTE**: When configuring multiple OpenID based authentication providers on a MinIO cluster, any number of Role Policy based providers may be configured, and at most one JWT Claim based provider may be configured.

<details><summary>Example 1: Two role policy providers</summary>

Sample environment variables:

```
MINIO_IDENTITY_OPENID_DISPLAY_NAME="my first openid"

     * Executes the log purging job.
     * Performs the following cleanup operations:
     * - Purges old crawling sessions
     * - Purges search logs older than configured days
     * - Purges job logs older than configured days
     * - Purges user info logs older than configured days
     * - Updates job log status
     *
     * @return a string containing the execution result and any error messages
     */
    public String execute() {