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

Sample environment variables:

```
MINIO_IDENTITY_OPENID_DISPLAY_NAME="my first openid"
MINIO_IDENTITY_OPENID_CONFIG_URL=http://myopenid.com/.well-known/openid-configuration
MINIO_IDENTITY_OPENID_CLIENT_ID="minio-client-app"

Sample handler:
```go
    handler :=  func(payload []byte) ([]byte, *grid.RemoteErr) {
        // Do something with payload
        return []byte("response"), nil
    }

    err := manager.RegisterSingleHandler(grid.HandlerDiskInfo, handler)
```

Sample call:
```go
    // Get a connection to the remote host

- MinIO exports Prometheus compatible data by default which is resource centric as an authorized endpoint at `/minio/v2/metrics/resource`.

All of these can be accessed via Prometheus dashboard. A sample list of exposed metrics along with their definition is available on our public demo server at

```sh
curl https://play.min.io/minio/v2/metrics/cluster
```

### List of metrics reported Cluster and Bucket level

					Value: "minio123",
				},
			},
		},
		{
			`
export MINIO_ROOT_USERminio
export MINIO_ROOT_PASSWORD=minio123`,
			true,
			nil,
		},
		{
			`
# simple comment
# MINIO_ROOT_USER=minioadmin
# MINIO_ROOT_PASSWORD=minioadmin
MINIO_ROOT_USER=minio
MINIO_ROOT_PASSWORD=minio123`,
			false,
			[]envKV{
				{
					Key:   "MINIO_ROOT_USER",

                                                                └─────────┘
```

In a given setup, there are `n` MinIO instances talking to `m` KES servers but only `1` central KMS. The most simple setup consists of `1` MinIO server or cluster talking to `1` KMS via `1` KES server.

	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()

	// Create a backend with 4 disks named disk{1...4}, this name convention
	// because we will unzip some object data from a sample archive.
	const numDisks = 4
	path := t.TempDir()

	var fsDirs []string
	for i := 1; i <= numDisks; i++ {
		fsDirs = append(fsDirs, filepath.Join(path, fmt.Sprintf("disk%d", i)))
	}

	)

	// if disk max timeout is smaller than checkEvery window
	// reduce checks by a second.
	if globalDriveConfig.GetMaxTimeout() <= checkEvery {
		checkEvery = globalDriveConfig.GetMaxTimeout() - time.Second
		if checkEvery <= 0 {
			checkEvery = globalDriveConfig.GetMaxTimeout()
		}
	}

	// if disk max timeout is smaller than skipIfSuccessBefore window

}

// DeleteObjects deletes objects/versions in bulk, this function will still automatically split objects list
// into smaller bulks if some object names are found to be duplicated in the delete list, splitting
// into smaller bulks will avoid holding twice the write lock of the duplicated object names.

Following is a sample directory structure for MinIO server with TLS certificates.

```sh
$ mc tree --files ~/.minio
/home/user1/.minio
└─ certs
   ├─ CAs
   ├─ private.key
   └─ public.crt
```

				r[i].Number = i
				r[i].Size = getEncSize(s)
				sum += r[i].Size
			}
			return ObjectInfo{
				Size:        sum,
				UserDefined: udMap(true),
				Parts:       r,
			}
		}
		// Simple useful utilities
		repeat = func(k int64, n int) []int64 {
			a := []int64{}
			for i := 0; i < n; i++ {
				a = append(a, k)
			}
			return a
		}
		lsum = func(s []int64) int64 {
			sum := int64(0)