var hint string
		if endpoint.URL != nil {
			hint = fmt.Sprintf("Drive '%s' does not support O_DIRECT flags, MinIO erasure coding requires filesystems with O_DIRECT support", endpoint.Path)
		} else {
			hint = "Drives do not support O_DIRECT flags, MinIO erasure coding requires filesystems with O_DIRECT support"
		}
		logger.Fatal(config.ErrUnsupportedBackend(err).Hint(hint), "Unable to initialize backend")

. . .
```

Refer [Prometheus documentation](https://prometheus.io/docs/introduction/first_steps/) for more details.

### 2. Configure authentication type for Prometheus metrics

MinIO supports two authentication modes for Prometheus either `jwt` or `public`, by default MinIO runs in `jwt` mode. To allow public access without authentication for prometheus metrics set environment as follows.

```

var (
	// ErrInvalidEncryptionMethod indicates that the specified SSE encryption method
	// is not supported.
	ErrInvalidEncryptionMethod = Errorf("The encryption method is not supported")

	// ErrInvalidCustomerAlgorithm indicates that the specified SSE-C algorithm
	// is not supported.
	ErrInvalidCustomerAlgorithm = Errorf("The SSE-C algorithm is not supported")

	// ErrMissingCustomerKey indicates that the HTTP headers contains no SSE-C client key.

			os.Setenv("CONSOLE_PROMETHEUS_JOB_ID", value)
			// Support additional labels for more granular filtering.
			if value := env.Get(config.EnvMinIOPrometheusExtraLabels, ""); value != "" {
				os.Setenv("CONSOLE_PROMETHEUS_EXTRA_LABELS", value)
			}
		}
		// Support Prometheus Auth Token
		if value := env.Get(config.EnvMinIOPrometheusAuthToken, ""); value != "" {

	"encoding/json"
	"errors"
	"math"
	"net/url"
	"sort"
	"strings"
	"sync"

	"github.com/tinylib/msgp/msgp"
)

// Recycler will override the internal reuse in typed handlers.
// When this is supported, the handler will not do internal pooling of objects,
// call Recycle() when the object is no longer needed.
// The recycler should handle nil pointers.
type Recycler interface {
	Recycle()
}

package lifecycle

import (
	"bytes"
	"encoding/xml"
)

// Status represents lifecycle configuration status
type Status string

// Supported status types
const (
	Enabled  Status = "Enabled"
	Disabled Status = "Disabled"
)

// Rule - a rule for lifecycle configuration.
type Rule struct {
	XMLName             xml.Name            `xml:"Rule"`

	objectAPI := api.ObjectAPI()
	if objectAPI == nil {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
		return
	}

	if crypto.S3KMS.IsRequested(r.Header) { // SSE-KMS is not supported
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL)
		return
	}

	vars := mux.Vars(r)
	dstBucket := vars["bucket"]
	dstObject, err := unescapePath(vars["object"])
	if err != nil {

		}
	}
	return res
}

// GetRawData will return all files with a given raw path to the callback.
// Errors are ignored, only errors from the callback are returned.
// For now only direct file paths are supported.
func (z *erasureServerPools) GetRawData(ctx context.Context, volume, file string, fn func(r io.Reader, host string, disk string, filename string, info StatInfo) error) error {
	found := 0
	for _, s := range z.serverPools {

	"github.com/minio/minio/internal/logger"
	"github.com/minio/minio/internal/s3select"
	"github.com/minio/mux"
	"github.com/minio/pkg/v2/policy"
	"github.com/valyala/bytebufferpool"
)

// supportedHeadGetReqParams - supported request parameters for GET and HEAD presigned request.
var supportedHeadGetReqParams = map[string]string{
	"response-expires":             xhttp.Expires,
	"response-content-type":        xhttp.ContentType,

		pe.Timestamp = UTCNow()
		return &pe, nil
	case <-ctx.Done():
		return nil, ctx.Err()
	}
}

// SetUserStatus - sets current user status, supports disabled or enabled.
func (sys *IAMSys) SetUserStatus(ctx context.Context, accessKey string, status madmin.AccountStatus) (updatedAt time.Time, err error) {
	if !sys.Initialized() {
		return updatedAt, errServerNotInitialized