worker/osbuild: add host OS and architecture to job result

It is generally useful to have this information in the
`OSBuildJobResult`. This information is currently part of the
`OSBuildKojiJobResult`. Instead of moving it to the new
`KojiTargetResultOptions`, lets move it to the `OSBuildJobResult`
structure and set it for all jobs.

cmd/osbuild-worker/jobimpl-osbuild.go

@@ -236,8 +236,16 @@ func (impl *OSBuildJobImpl) Run(job worker.Job) error {
 			Success: false,
 		},
 		UploadStatus: "failure",
+		Arch:         common.CurrentArch(),
 	}
 
+	hostOS, err := common.GetRedHatRelease()
+	if err != nil {
+		osbuildJobResult.JobError = clienterrors.WorkerClientError(clienterrors.ErrorBuildJob, err.Error())
+		return nil
+	}
+	osbuildJobResult.HostOS = hostOS
+
 	var outputDirectory string
 
 	// In all cases it is necessary to report result back to osbuild-composer worker API.
@@ -255,7 +263,7 @@ func (impl *OSBuildJobImpl) Run(job worker.Job) error {
 		}
 	}()
 
-	outputDirectory, err := ioutil.TempDir(impl.Output, job.Id().String()+"-*")
+	outputDirectory, err = ioutil.TempDir(impl.Output, job.Id().String()+"-*")
 	if err != nil {
 		return fmt.Errorf("error creating temporary output directory: %v", err)
 	}

internal/worker/json.go

@@ -38,6 +38,10 @@ type OSBuildJobResult struct {
 	TargetErrors  []string               `json:"target_errors,omitempty"`
 	UploadStatus  string                 `json:"upload_status"`
 	PipelineNames *PipelineNames         `json:"pipeline_names,omitempty"`
+	// Host OS of the worker which handled the job
+	HostOS string `json:"host_os"`
+	// Architecture of the worker which handled the job
+	Arch string `json:"arch"`
 	JobResult
 }