[#18] Return container name in head-bucket response

Signed-off-by: Artem Tataurov <a.tataurov@yadro.com>

CHANGELOG.md

@@ -5,6 +5,7 @@ This document outlines major changes between releases.
 ## [Unreleased]
 
 ### Added
+- Return container name in `head-bucket` response (TrueCloudLab#18)
 - Billing metrics (TrueCloudLab#5)
 
 ### Changed

api/handler/head.go

@@ -123,6 +123,7 @@ func (h *handler) HeadBucketHandler(w http.ResponseWriter, r *http.Request) {
 	}
 
 	w.Header().Set(api.ContainerID, bktInfo.CID.EncodeToString())
+	w.Header().Set(api.ContainerName, bktInfo.Name)
 	w.Header().Set(api.AmzBucketRegion, bktInfo.LocationConstraint)
 	api.WriteResponse(w, http.StatusOK, nil, api.MimeNone)
 }

api/headers.go

@@ -63,6 +63,7 @@ const (
 	AmzServerSideEncryptionCustomerKeyMD5    = "x-amz-server-side-encryption-customer-key-MD5"
 
 	ContainerID   = "X-Container-Id"
+	ContainerName = "X-Container-Name"
 
 	AccessControlAllowOrigin      = "Access-Control-Allow-Origin"
 	AccessControlAllowMethods     = "Access-Control-Allow-Methods"