Add EventSource to api to have both Component and Host information.

pkg/api/types.go

@@ -985,6 +985,13 @@ type ObjectReference struct {
 	FieldPath string `json:"fieldPath,omitempty"`
 }
 
+type EventSource struct {
+	// Component from which the event is generated.
+	Component string `json:"component,omitempty"`
+	// Host name on which the event is generated.
+	Host string `json:"host,omitempty"`
+}
+
 // Event is a report of an event somewhere in the cluster.
 // TODO: Decide whether to store these separately or with the object they apply to.
 type Event struct {
@@ -1014,8 +1021,7 @@ type Event struct {
 	Message string `json:"message,omitempty"`
 
 	// Optional. The component reporting this event. Should be a short machine understandable string.
-	// TODO: provide exact specification for format.
-	Source string `json:"source,omitempty"`
+	Source EventSource `json:"source,omitempty"`
 
 	// The time at which the client recorded the event. (Time of server receipt is in TypeMeta.)
 	Timestamp util.Time `json:"timestamp,omitempty"`

pkg/api/v1beta1/conversion.go

@@ -548,7 +548,9 @@ func init() {
 			return nil
 		},
 
-		// Event Status -> Condition
+		// Event Status <-> Condition
+		// Event Source <-> Source.Component
+		// Event Host <-> Source.Host
 		// TODO: remove this when it becomes possible to specify a field name conversion on a specific type
 		func(in *newer.Event, out *Event, s conversion.Scope) error {
 			if err := s.Convert(&in.TypeMeta, &out.TypeMeta, 0); err != nil {
@@ -560,7 +562,8 @@ func init() {
 			out.Status = in.Condition
 			out.Reason = in.Reason
 			out.Message = in.Message
-			out.Source = in.Source
+			out.Source = in.Source.Component
+			out.Host = in.Source.Host
 			out.Timestamp = in.Timestamp
 			return s.Convert(&in.InvolvedObject, &out.InvolvedObject, 0)
 		},
@@ -574,7 +577,8 @@ func init() {
 			out.Condition = in.Status
 			out.Reason = in.Reason
 			out.Message = in.Message
-			out.Source = in.Source
+			out.Source.Component = in.Source
+			out.Source.Host = in.Host
 			out.Timestamp = in.Timestamp
 			return s.Convert(&in.InvolvedObject, &out.InvolvedObject, 0)
 		},

pkg/api/v1beta1/types.go

@@ -817,6 +817,8 @@ type Event struct {
 	// Optional. The component reporting this event. Should be a short machine understandable string.
 	// TODO: provide exact specification for format.
 	Source string `json:"source,omitempty" description:"component reporting this event; short machine understandable string"`
+	// Host name on which the event is generated.
+	Host string `json:"host,omitempty"`
 
 	// The time at which the client recorded the event. (Time of server receipt is in TypeMeta.)
 	Timestamp util.Time `json:"timestamp,omitempty" description:"time at which the client recorded the event"`

pkg/api/v1beta2/conversion.go

@@ -464,7 +464,9 @@ func init() {
 			return nil
 		},
 
-		// Event Status -> Condition
+		// Event Status <-> Condition
+		// Event Source <-> Source.Component
+		// Event Host <-> Source.Host
 		// TODO: remove this when it becomes possible to specify a field name conversion on a specific type
 		func(in *newer.Event, out *Event, s conversion.Scope) error {
 			if err := s.Convert(&in.TypeMeta, &out.TypeMeta, 0); err != nil {
@@ -476,7 +478,8 @@ func init() {
 			out.Status = in.Condition
 			out.Reason = in.Reason
 			out.Message = in.Message
-			out.Source = in.Source
+			out.Source = in.Source.Component
+			out.Host = in.Source.Host
 			out.Timestamp = in.Timestamp
 			return s.Convert(&in.InvolvedObject, &out.InvolvedObject, 0)
 		},
@@ -490,7 +493,8 @@ func init() {
 			out.Condition = in.Status
 			out.Reason = in.Reason
 			out.Message = in.Message
-			out.Source = in.Source
+			out.Source.Component = in.Source
+			out.Source.Host = in.Host
 			out.Timestamp = in.Timestamp
 			return s.Convert(&in.InvolvedObject, &out.InvolvedObject, 0)
 		},

pkg/api/v1beta2/types.go

@@ -791,6 +791,9 @@ type Event struct {
 	// TODO: provide exact specification for format.
 	Source string `json:"source,omitempty" description:"component reporting this event; short machine understandable string"`
 
+	// Host name on which the event is generated.
+	Host string `json:"host,omitempty"`
+
 	// The time at which the client recorded the event. (Time of server receipt is in TypeMeta.)
 	Timestamp util.Time `json:"timestamp,omitempty" description:"time at which the client recorded the event"`
 }

pkg/api/v1beta3/types.go

@@ -1003,6 +1003,13 @@ type ObjectReference struct {
 	FieldPath string `json:"fieldPath,omitempty"`
 }
 
+type EventSource struct {
+	// Component from which the event is generated.
+	Component string `json:"component,omitempty"`
+	// Host name on which the event is generated.
+	Host string `json:"host,omitempty"`
+}
+
 // Event is a report of an event somewhere in the cluster.
 // TODO: Decide whether to store these separately or with the object they apply to.
 type Event struct {
@@ -1032,8 +1039,7 @@ type Event struct {
 	Message string `json:"message,omitempty"`
 
 	// Optional. The component reporting this event. Should be a short machine understandable string.
-	// TODO: provide exact specification for format.
-	Source string `json:"source,omitempty"`
+	Source EventSource `json:"source,omitempty"`
 
 	// The time at which the client recorded the event. (Time of server receipt is in TypeMeta.)
 	Timestamp util.Time `json:"timestamp,omitempty"`

pkg/client/record/event.go

@@ -41,13 +41,13 @@ type EventRecorder interface {
 // StartRecording starts sending events to recorder. Call once while initializing
 // your binary. Subsequent calls will be ignored. The return value can be ignored
 // or used to stop recording, if desired.
-func StartRecording(recorder EventRecorder, sourceName string) watch.Interface {
+func StartRecording(recorder EventRecorder, source api.EventSource) watch.Interface {
 	return GetEvents(func(event *api.Event) {
 		// Make a copy before modification, because there could be multiple listeners.
 		// Events are safe to copy like this.
 		eventCopy := *event
 		event = &eventCopy
-		event.Source = sourceName
+		event.Source = source
 		try := 0
 		for {
 			try++

pkg/client/record/event_test.go

@@ -89,7 +89,7 @@ func TestEventf(t *testing.T) {
 				Condition: "Running",
 				Reason:    "Started",
 				Message:   "some verbose message: 1",
-				Source:    "eventTest",
+				Source:    api.EventSource{Component: "eventTest"},
 			},
 			expectLog: `Event(api.ObjectReference{Kind:"Pod", Namespace:"baz", Name:"foo", UID:"bar", APIVersion:"v1beta1", ResourceVersion:"", FieldPath:"desiredState.manifest.containers[2]"}): status: 'Running', reason: 'Started' some verbose message: 1`,
 		},
@@ -114,7 +114,7 @@ func TestEventf(t *testing.T) {
 				Condition: "Running",
 				Reason:    "Started",
 				Message:   "some verbose message: 1",
-				Source:    "eventTest",
+				Source:    api.EventSource{Component: "eventTest"},
 			},
 			expectLog: `Event(api.ObjectReference{Kind:"Pod", Namespace:"baz", Name:"foo", UID:"bar", APIVersion:"v1beta1", ResourceVersion:"", FieldPath:""}): status: 'Running', reason: 'Started' some verbose message: 1`,
 		},
@@ -142,7 +142,7 @@ func TestEventf(t *testing.T) {
 				return event, nil
 			},
 		}
-		recorder := record.StartRecording(&testEvents, "eventTest")
+		recorder := record.StartRecording(&testEvents, api.EventSource{Component: "eventTest"})
 		logger := record.StartLogging(t.Logf) // Prove that it is useful
 		logger2 := record.StartLogging(func(formatter string, args ...interface{}) {
 			if e, a := item.expectLog, fmt.Sprintf(formatter, args...); e != a {
@@ -223,7 +223,7 @@ func TestWriteEventError(t *testing.T) {
 				return event, nil
 			},
 		},
-		"eventTest",
+		api.EventSource{Component: "eventTest"},
 	).Stop()
 
 	for caseName := range table {

pkg/kubectl/describe_test.go

@@ -69,17 +69,17 @@ func TestPodDescribeResultsSorted(t *testing.T) {
 		EventsList: api.EventList{
 			Items: []api.Event{
 				{
-					Source:    "kubelet",
+					Source:    api.EventSource{Component: "kubelet"},
 					Message:   "Item 1",
 					Timestamp: util.NewTime(time.Date(2014, time.January, 15, 0, 0, 0, 0, time.UTC)),
 				},
 				{
-					Source:    "scheduler",
+					Source:    api.EventSource{Component: "scheduler"},
 					Message:   "Item 2",
 					Timestamp: util.NewTime(time.Date(1987, time.June, 17, 0, 0, 0, 0, time.UTC)),
 				},
 				{
-					Source:    "kubelet",
+					Source:    api.EventSource{Component: "kubelet"},
 					Message:   "Item 3",
 					Timestamp: util.NewTime(time.Date(2002, time.December, 25, 0, 0, 0, 0, time.UTC)),
 				},

pkg/kubectl/resource_printer_test.go

@@ -463,17 +463,17 @@ func TestPrintEventsResultSorted(t *testing.T) {
 	obj := api.EventList{
 		Items: []api.Event{
 			{
-				Source:    "kubelet",
+				Source:    api.EventSource{Component: "kubelet"},
 				Message:   "Item 1",
 				Timestamp: util.NewTime(time.Date(2014, time.January, 15, 0, 0, 0, 0, time.UTC)),
 			},
 			{
-				Source:    "scheduler",
+				Source:    api.EventSource{Component: "scheduler"},
 				Message:   "Item 2",
 				Timestamp: util.NewTime(time.Date(1987, time.June, 17, 0, 0, 0, 0, time.UTC)),
 			},
 			{
-				Source:    "kubelet",
+				Source:    api.EventSource{Component: "kubelet"},
 				Message:   "Item 3",
 				Timestamp: util.NewTime(time.Date(2002, time.December, 25, 0, 0, 0, 0, time.UTC)),
 			},

pkg/kubectl/sorted_event_list_test.go

@@ -54,17 +54,17 @@ func TestSortableEvents(t *testing.T) {
 	// Arrange
 	list := SortableEvents([]api.Event{
 		{
-			Source:    "kubelet",
+			Source:    api.EventSource{Component: "kubelet"},
 			Message:   "Item 1",
 			Timestamp: util.NewTime(time.Date(2014, time.January, 15, 0, 0, 0, 0, time.UTC)),
 		},
 		{
-			Source:    "scheduler",
+			Source:    api.EventSource{Component: "scheduler"},
 			Message:   "Item 2",
 			Timestamp: util.NewTime(time.Date(1987, time.June, 17, 0, 0, 0, 0, time.UTC)),
 		},
 		{
-			Source:    "kubelet",
+			Source:    api.EventSource{Component: "kubelet"},
 			Message:   "Item 3",
 			Timestamp: util.NewTime(time.Date(2002, time.December, 25, 0, 0, 0, 0, time.UTC)),
 		},

pkg/kubelet/util.go

@@ -23,6 +23,7 @@ import (
 	"path"
 	"strconv"
 
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/capabilities"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/client/record"
@@ -132,7 +133,11 @@ func SetupEventSending(authPath string, apiServerList util.StringList) {
 			// Send events to APIserver if there is a client.
 			hostname := util.GetHostname("")
 			glog.Infof("Sending events to APIserver.")
-			record.StartRecording(apiClient.Events(""), "kubelet:"+hostname)
+			record.StartRecording(apiClient.Events(""),
+				api.EventSource{
+					Component: "kubelet",
+					Host:      hostname,
+				})
 		}
 	}
 }

pkg/registry/event/rest.go

@@ -109,7 +109,7 @@ func (rs *REST) getAttrs(obj runtime.Object) (objLabels, objFields labels.Set, e
 		"condition":                      event.Condition,
 		"status":                         event.Condition, // TODO: remove me when we version fields
 		"reason":                         event.Reason,
-		"source":                         event.Source,
+		"source":                         event.Source.Component,
 	}, nil
 }
 

pkg/registry/event/rest_test.go

@@ -145,7 +145,7 @@ func TestRESTgetAttrs(t *testing.T) {
 		},
 		Condition: "Tested",
 		Reason:    "ForTesting",
-		Source:    "test",
+		Source:    api.EventSource{Component: "test"},
 	}
 	label, field, err := rest.getAttrs(eventA)
 	if err != nil {

plugin/cmd/kube-scheduler/scheduler.go

@@ -22,6 +22,7 @@ import (
 	"net/http"
 	"strconv"
 
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/client/record"
 	_ "github.com/GoogleCloudPlatform/kubernetes/pkg/healthz"
@@ -57,7 +58,7 @@ func main() {
 		glog.Fatalf("Invalid API configuration: %v", err)
 	}
 
-	record.StartRecording(kubeClient.Events(""), "scheduler")
+	record.StartRecording(kubeClient.Events(""), api.EventSource{Component: "scheduler"})
 
 	go http.ListenAndServe(net.JoinHostPort(address.String(), strconv.Itoa(*port)), nil)