HTTPStatusCode: http.StatusBadRequest,
	},
	ErrInvalidCopySource: {
		Code:           "InvalidArgument",
		Description:    "Copy Source must mention the source bucket and key: sourcebucket/sourcekey.",
		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrInvalidMetadataDirective: {
		Code:           "InvalidArgument",
		Description:    "Unknown metadata directive.",

The command will generate the `scrape_configs` section of the prometheus.yml as follows:

##### Cluster

```yaml
scrape_configs:
- job_name: minio-job
  bearer_token: <secret>
  metrics_path: /minio/v2/metrics/cluster

## |:----------------------|:-------------------------|
## | rootUser              | rootUser                 |
## | rootPassword          | rootPassword             |
##
## All mentioned variables will be ignored in values file.
## .data.rootUser and .data.rootPassword are mandatory,
## others depend on enabled status of corresponding sections.
existingSecret: ""

## Directory on the MinIO pof

	if s3Error := checkRequestAuthType(ctx, r, policy.GetObjectAction, bucket, object); s3Error != ErrNone {
		if getRequestAuthType(r) == authTypeAnonymous {
			// As per "Permission" section in
			// https://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectGET.html
			// If the object you request does not exist,
			// the error Amazon S3 returns depends on
			// whether you also have the s3:ListBucket

			if opts.PrefixEnabledFn != nil {
				versioned = opts.PrefixEnabledFn(objects[i].ObjectName)
			}
			if versioned || suspended {
				// Bucket is versioned and no version was explicitly
				// mentioned for deletes, create a delete marker instead.
				vr.ModTime = UTCNow()
				vr.Deleted = true
				// Versioning suspended means that we add a `null` version
				// delete marker, if not add a new version for this delete

	}

	rf, err := s.getStorage().ReadXL(context.Background(), volume, filePath, readData)
	if err != nil {
		return nil, grid.NewRemoteErr(err)
	}

	return &rf, nil
}

// ReadFileHandler - read section of a file.
func (s *storageRESTServer) ReadFileHandler(w http.ResponseWriter, r *http.Request) {
	if !s.IsValid(w, r) {
		return
	}
	volume := r.Form.Get(storageRESTVolume)

******@****.***
arcfour256
arcfour128
arcfour
aes128-cbc
3des-cbc
```

`--sftp=mac-algos=...` specifies a default set of MAC algorithms in preference order.
This is based on RFC 4253, section 6.4, but with hmac-md5 variants removed because they have 
reached the end of their useful life.

Valid values: 

```
******@****.***
******@****.***
hmac-sha2-256

// return true if the string includes a port.
func hasPort(s string) bool { return strings.LastIndex(s, ":") > strings.LastIndex(s, "]") }

// removeEmptyPort strips the empty port in ":port" to ""
// as mandated by RFC 3986 Section 6.2.3.
func removeEmptyPort(host string) string {
	if hasPort(host) {
		return strings.TrimSuffix(host, ":")
	}
	return host
}

func errorResponseHandler(w http.ResponseWriter, r *http.Request) {
	if r.Method == http.MethodOptions {
		return
	}
	desc := "Do not upgrade one server at a time - please follow the recommended guidelines mentioned here https://github.com/minio/minio#upgrading-minio for your environment"
	switch {
	case strings.HasPrefix(r.URL.Path, peerRESTPrefix):
		writeErrorResponseString(r.Context(), w, APIError{

	respBody, err := client.call(ctx, storageRESTMethodReadFileStream, values, nil, -1)
	if err != nil {
		return nil, err
	}
	return respBody, nil
}

// ReadFile - reads section of a file.
func (client *storageRESTClient) ReadFile(ctx context.Context, volume string, path string, offset int64, buf []byte, verifier *BitrotVerifier) (int64, error) {
	values := make(url.Values)