Change the timestamp unit to nanosecond.

pkg/kubelet/api/v1alpha1/runtime/api.pb.go

@@ -812,7 +812,7 @@ type PodSandboxStatus struct {
 	Metadata *PodSandboxMetadata `protobuf:"bytes,2,opt,name=metadata" json:"metadata,omitempty"`
 	// State of the sandbox.
 	State *PodSandBoxState `protobuf:"varint,3,opt,name=state,enum=runtime.PodSandBoxState" json:"state,omitempty"`
-	// Creation timestamp of the sandbox
+	// Creation timestamp of the sandbox in nanoseconds.
 	CreatedAt *int64 `protobuf:"varint,4,opt,name=created_at,json=createdAt" json:"created_at,omitempty"`
 	// Network contains network status if network is handled by the runtime.
 	Network *PodSandboxNetworkStatus `protobuf:"bytes,5,opt,name=network" json:"network,omitempty"`
@@ -971,7 +971,7 @@ type PodSandbox struct {
 	Metadata *PodSandboxMetadata `protobuf:"bytes,2,opt,name=metadata" json:"metadata,omitempty"`
 	// The state of the PodSandbox
 	State *PodSandBoxState `protobuf:"varint,3,opt,name=state,enum=runtime.PodSandBoxState" json:"state,omitempty"`
-	// Creation timestamps of the sandbox
+	// Creation timestamps of the sandbox in nanoseconds
 	CreatedAt *int64 `protobuf:"varint,4,opt,name=created_at,json=createdAt" json:"created_at,omitempty"`
 	// The labels of the PodSandbox
 	Labels map[string]string `protobuf:"bytes,5,rep,name=labels" json:"labels,omitempty" protobuf_key:"bytes,1,opt,name=key" protobuf_val:"bytes,2,opt,name=value"`
@@ -1740,7 +1740,7 @@ type Container struct {
 	ImageRef *string `protobuf:"bytes,5,opt,name=image_ref,json=imageRef" json:"image_ref,omitempty"`
 	// State is the state of the container.
 	State *ContainerState `protobuf:"varint,6,opt,name=state,enum=runtime.ContainerState" json:"state,omitempty"`
-	// Creation time of the container.
+	// Creation time of the container in nanoseconds.
 	CreatedAt *int64 `protobuf:"varint,7,opt,name=created_at,json=createdAt" json:"created_at,omitempty"`
 	// Labels are key value pairs that may be used to scope and select individual resources.
 	Labels map[string]string `protobuf:"bytes,8,rep,name=labels" json:"labels,omitempty" protobuf_key:"bytes,1,opt,name=key" protobuf_val:"bytes,2,opt,name=value"`
@@ -1862,11 +1862,11 @@ type ContainerStatus struct {
 	Metadata *ContainerMetadata `protobuf:"bytes,2,opt,name=metadata" json:"metadata,omitempty"`
 	// Status of the container.
 	State *ContainerState `protobuf:"varint,3,opt,name=state,enum=runtime.ContainerState" json:"state,omitempty"`
-	// Creation time of the container.
+	// Creation time of the container in nanoseconds.
 	CreatedAt *int64 `protobuf:"varint,4,opt,name=created_at,json=createdAt" json:"created_at,omitempty"`
-	// Start time of the container.
+	// Start time of the container in nanoseconds.
 	StartedAt *int64 `protobuf:"varint,5,opt,name=started_at,json=startedAt" json:"started_at,omitempty"`
-	// Finish time of the container.
+	// Finish time of the container in nanoseconds.
 	FinishedAt *int64 `protobuf:"varint,6,opt,name=finished_at,json=finishedAt" json:"finished_at,omitempty"`
 	// Exit code of the container.
 	ExitCode *int32 `protobuf:"varint,7,opt,name=exit_code,json=exitCode" json:"exit_code,omitempty"`

pkg/kubelet/api/v1alpha1/runtime/api.proto

@@ -251,7 +251,7 @@ message PodSandboxStatus {
     optional PodSandboxMetadata metadata = 2;
     // State of the sandbox.
     optional PodSandBoxState state = 3;
-    // Creation timestamp of the sandbox
+    // Creation timestamp of the sandbox in nanoseconds.
     optional int64 created_at = 4;
     // Network contains network status if network is handled by the runtime.
     optional PodSandboxNetworkStatus network = 5;
@@ -296,7 +296,7 @@ message PodSandbox {
     optional PodSandboxMetadata metadata = 2;
     // The state of the PodSandbox
     optional PodSandBoxState state = 3;
-    // Creation timestamps of the sandbox
+    // Creation timestamps of the sandbox in nanoseconds
     optional int64 created_at = 4;
     // The labels of the PodSandbox
     map<string, string> labels = 5;
@@ -533,7 +533,7 @@ message Container {
     optional string image_ref = 5;
     // State is the state of the container.
     optional ContainerState state = 6;
-    // Creation time of the container.
+    // Creation time of the container in nanoseconds.
     optional int64 created_at = 7;
     // Labels are key value pairs that may be used to scope and select individual resources.
     map<string, string> labels = 8;
@@ -560,11 +560,11 @@ message ContainerStatus {
     optional ContainerMetadata metadata = 2;
     // Status of the container.
     optional ContainerState state = 3;
-    // Creation time of the container.
+    // Creation time of the container in nanoseconds.
     optional int64 created_at = 4;
-    // Start time of the container.
+    // Start time of the container in nanoseconds.
     optional int64 started_at = 5;
-    // Finish time of the container.
+    // Finish time of the container in nanoseconds.
     optional int64 finished_at = 6;
     // Exit code of the container.
     optional int32 exit_code = 7;

pkg/kubelet/dockershim/convert.go

@@ -19,6 +19,7 @@ package dockershim
 import (
 	"fmt"
 	"strings"
+	"time"
 
 	dockertypes "github.com/docker/engine-api/types"
 
@@ -57,6 +58,8 @@ func toRuntimeAPIContainer(c *dockertypes.Container) (*runtimeApi.Container, err
 	}
 	labels, annotations := extractLabels(c.Labels)
 	sandboxID := c.Labels[sandboxIDLabelKey]
+	// The timestamp in dockertypes.Container is in seconds.
+	createdAt := c.Created * int64(time.Second)
 	return &runtimeApi.Container{
 		Id:           &c.ID,
 		PodSandboxId: &sandboxID,
@@ -64,6 +67,7 @@ func toRuntimeAPIContainer(c *dockertypes.Container) (*runtimeApi.Container, err
 		Image:        &runtimeApi.ImageSpec{Image: &c.Image},
 		ImageRef:     &c.ImageID,
 		State:        &state,
+		CreatedAt:    &createdAt,
 		Labels:       labels,
 		Annotations:  annotations,
 	}, nil
@@ -117,11 +121,13 @@ func toRuntimeAPISandbox(c *dockertypes.Container) (*runtimeApi.PodSandbox, erro
 		return nil, err
 	}
 	labels, annotations := extractLabels(c.Labels)
+	// The timestamp in dockertypes.Container is in seconds.
+	createdAt := c.Created * int64(time.Second)
 	return &runtimeApi.PodSandbox{
 		Id:          &c.ID,
 		Metadata:    metadata,
 		State:       &state,
-		CreatedAt:   &c.Created,
+		CreatedAt:   &createdAt,
 		Labels:      labels,
 		Annotations: annotations,
 	}, nil

pkg/kubelet/dockershim/docker_container_test.go

@@ -61,6 +61,7 @@ func TestListContainers(t *testing.T) {
 
 	expected := []*runtimeApi.Container{}
 	state := runtimeApi.ContainerState_RUNNING
+	var createdAt int64 = 0
 	for i := range configs {
 		// We don't care about the sandbox id; pass a bogus one.
 		sandboxID := fmt.Sprintf("sandboxid%d", i)
@@ -77,6 +78,7 @@ func TestListContainers(t *testing.T) {
 			Id:           &id,
 			PodSandboxId: &sandboxID,
 			State:        &state,
+			CreatedAt:    &createdAt,
 			Image:        configs[i].Image,
 			ImageRef:     &imageRef,
 			Labels:       configs[i].Labels,

pkg/kubelet/kuberuntime/kuberuntime_container.go

@@ -379,16 +379,16 @@ func (m *kubeGenericRuntimeManager) getPodContainerStatuses(uid kubetypes.UID, n
 			Hash:         annotatedInfo.Hash,
 			RestartCount: annotatedInfo.RestartCount,
 			State:        toKubeContainerState(c.GetState()),
-			CreatedAt:    time.Unix(status.GetCreatedAt(), 0),
+			CreatedAt:    time.Unix(0, status.GetCreatedAt()),
 		}
 
 		if c.GetState() == runtimeApi.ContainerState_RUNNING {
-			cStatus.StartedAt = time.Unix(status.GetStartedAt(), 0)
+			cStatus.StartedAt = time.Unix(0, status.GetStartedAt())
 		} else {
 			cStatus.Reason = status.GetReason()
 			cStatus.Message = status.GetMessage()
 			cStatus.ExitCode = int(status.GetExitCode())
-			cStatus.FinishedAt = time.Unix(status.GetFinishedAt(), 0)
+			cStatus.FinishedAt = time.Unix(0, status.GetFinishedAt())
 		}
 
 		tMessage := getTerminationMessage(status, cStatus, annotatedInfo.TerminationMessagePath)

pkg/kubelet/kuberuntime/kuberuntime_gc.go

@@ -141,7 +141,7 @@ func (cgc *containerGC) evictableContainers(minAge time.Duration) (containersByE
 			continue
 		}
 
-		createdAt := time.Unix(container.GetCreatedAt(), 0)
+		createdAt := time.Unix(0, container.GetCreatedAt())
 		if newestGCTime.Before(createdAt) {
 			continue
 		}