osbuild-worker: add target for upload to vmware

New upload target for VMWare, similar to the ones for AWS and Azure,
allowing users to set credentials for their vSphere instance.
Commit also includes function that performs the actual upload.

cmd/osbuild-worker/jobimpl-osbuild.go

@@ -137,6 +137,35 @@ func (impl *OSBuildJobImpl) Run(job worker.Job) error {
 				r = append(r, err)
 				continue
 			}
+		case *target.VMWareTargetOptions:
+			// TODO
+			if !osbuildOutput.Success {
+				continue
+			}
+			var f *os.File
+			imagePath := path.Join(outputDirectory, options.Filename)
+			f, err = vmware.OpenAsStreamOptimizedVmdk(imagePath)
+			if err != nil {
+				r = append(r, err)
+				continue
+			}
+			// we don't need the file descriptor to be opened b/c import.vmdk operates on the file path
+			f.Close()
+			imagePath = f.Name()
+
+			credentials := vmware.Credentials{
+				Username:	options.Username,
+				Password:	options.Password,
+				Host:		options.Host,
+				Cluster:	options.Cluster,
+				Datacenter:	options.Datacenter,
+				Datastore:	options.Datastore,
+			}
+			err = vmware.UploadImage(credentials, imagePath, t.ImageName)
+			if err != nil {
+				r = append(r, err)
+				continue
+			}
 
 		case *target.AWSTargetOptions:
 			if !osbuildOutput.Success {