Merge pull request #189 from mauriciopoppe/closest-volume-from-target-path-volume-api

Add GetClosestVolumeIDFromTargetPath API to the Volume API Group

Author: k8s-ci-robot

client/api/volume/v2alpha1/api.pb.go

@@ -33,6 +33,11 @@ service Volume {
     // GetVolumeIDFromTargetPath gets the volume id for a given target path.
     rpc GetVolumeIDFromTargetPath(GetVolumeIDFromTargetPathRequest) returns (GetVolumeIDFromTargetPathResponse) {}
 
+    // GetClosestVolumeIDFromTargetPath gets the closest volume id for a given target path
+    // by following symlinks and moving up in the filesystem, if after moving up in the filesystem
+    // we get to a DriveLetter then the volume corresponding to this drive letter is returned instead.
+    rpc GetClosestVolumeIDFromTargetPath(GetClosestVolumeIDFromTargetPathRequest) returns (GetClosestVolumeIDFromTargetPathResponse) {}
+
     // WriteVolumeCache write volume cache to disk.
     rpc WriteVolumeCache(WriteVolumeCacheRequest) returns (WriteVolumeCacheResponse) {}
 }
@@ -133,6 +138,16 @@ message GetVolumeIDFromTargetPathResponse {
     string volume_id = 1;
 }
 
+message GetClosestVolumeIDFromTargetPathRequest {
+    // The target path.
+    string target_path = 1;
+}
+
+message GetClosestVolumeIDFromTargetPathResponse {
+    // The volume device ID.
+    string volume_id = 1;
+}
+
 message WriteVolumeCacheRequest {
     // Volume device ID of the volume to flush the cache.
     string volume_id = 1;