Add RuntimeHandler into PodSandbox and PodSandboxStatus

The upstream CRI change: https://github.com/kubernetes/kubernetes/pull/73833

Signed-off-by: Haiyan Meng <haiyanmeng@google.com>

integration/runtime_handler_test.go

@@ -0,0 +1,50 @@
+/*
+Copyright 2019 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package integration
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	runtime "k8s.io/kubernetes/pkg/kubelet/apis/cri/runtime/v1alpha2"
+)
+
+func TestRuntimeHandler(t *testing.T) {
+	t.Logf("Create a sandbox")
+	sbConfig := PodSandboxConfig("sandbox", "test-runtime-handler")
+	t.Logf("the --runtime-handler flag value is: %s", *runtimeHandler)
+	sb, err := runtimeService.RunPodSandbox(sbConfig, *runtimeHandler)
+	require.NoError(t, err)
+	defer func() {
+		// Make sure the sandbox is cleaned up in any case.
+		runtimeService.StopPodSandbox(sb)
+		runtimeService.RemovePodSandbox(sb)
+	}()
+
+	t.Logf("Verify runtimeService.PodSandboxStatus sets RuntimeHandler")
+	sbStatus, err := runtimeService.PodSandboxStatus(sb)
+	require.NoError(t, err)
+	t.Logf("runtimeService.PodSandboxStatus sets RuntimeHandler to %s", sbStatus.RuntimeHandler)
+	assert.Equal(t, *runtimeHandler, sbStatus.RuntimeHandler)
+
+	t.Logf("Verify runtimeService.ListPodSandbox sets RuntimeHandler")
+	sandboxes, err := runtimeService.ListPodSandbox(&runtime.PodSandboxFilter{})
+	require.NoError(t, err)
+	t.Logf("runtimeService.ListPodSandbox sets RuntimeHandler to %s", sbStatus.RuntimeHandler)
+	assert.Equal(t, *runtimeHandler, sandboxes[0].RuntimeHandler)
+}

pkg/server/sandbox_list.go

@@ -53,6 +53,7 @@ func toCRISandbox(meta sandboxstore.Metadata, status sandboxstore.Status) *runti
 		CreatedAt:      status.CreatedAt.UnixNano(),
 		Labels:         meta.Config.GetLabels(),
 		Annotations:    meta.Config.GetAnnotations(),
+		RuntimeHandler: meta.RuntimeHandler,
 	}
 }
 

pkg/server/sandbox_list_test.go

@@ -43,6 +43,7 @@ func TestToCRISandbox(t *testing.T) {
 		Name:           "test-name",
 		Config:         config,
 		NetNSPath:      "test-netns",
+		RuntimeHandler: "test-runtime-handler",
 	}
 	expect := &runtime.PodSandbox{
 		Id:             "test-id",
@@ -50,6 +51,7 @@ func TestToCRISandbox(t *testing.T) {
 		CreatedAt:      createdAt.UnixNano(),
 		Labels:         config.GetLabels(),
 		Annotations:    config.GetAnnotations(),
+		RuntimeHandler: "test-runtime-handler",
 	}
 	for desc, test := range map[string]struct {
 		state         sandboxstore.State
@@ -93,6 +95,7 @@ func TestFilterSandboxes(t *testing.T) {
 						Attempt:   1,
 					},
 				},
+				RuntimeHandler: "test-runtime-handler",
 			},
 			sandboxstore.Status{
 				CreatedAt: time.Now(),
@@ -112,6 +115,7 @@ func TestFilterSandboxes(t *testing.T) {
 					},
 					Labels: map[string]string{"a": "b"},
 				},
+				RuntimeHandler: "test-runtime-handler",
 			},
 			sandboxstore.Status{
 				CreatedAt: time.Now(),
@@ -131,6 +135,7 @@ func TestFilterSandboxes(t *testing.T) {
 					},
 					Labels: map[string]string{"c": "d"},
 				},
+				RuntimeHandler: "test-runtime-handler",
 			},
 			sandboxstore.Status{
 				CreatedAt: time.Now(),

pkg/server/sandbox_status.go

@@ -109,6 +109,7 @@ func toCRISandboxStatus(meta sandboxstore.Metadata, status sandboxstore.Status,
 		},
 		Labels:         meta.Config.GetLabels(),
 		Annotations:    meta.Config.GetAnnotations(),
+		RuntimeHandler: meta.RuntimeHandler,
 	}
 }
 
@@ -121,7 +122,10 @@ type SandboxInfo struct {
 	Image       string `json:"image"`
 	SnapshotKey string `json:"snapshotKey"`
 	Snapshotter string `json:"snapshotter"`
-	RuntimeHandler string                    `json:"runtimeHandler"`
+	// Note: a new field `RuntimeHandler` has been added into the CRI PodSandboxStatus struct, and
+	// should be set. This `RuntimeHandler` field will be deprecated after containerd 1.3 (tracked
+	// in https://github.com/containerd/cri/issues/1064).
+	RuntimeHandler string                    `json:"runtimeHandler"` // see the Note above
 	RuntimeType    string                    `json:"runtimeType"`
 	RuntimeOptions interface{}               `json:"runtimeOptions"`
 	Config         *runtime.PodSandboxConfig `json:"config"`

pkg/server/sandbox_status_test.go

@@ -55,6 +55,7 @@ func TestPodSandboxStatus(t *testing.T) {
 		ID:             id,
 		Name:           "test-name",
 		Config:         config,
+		RuntimeHandler: "test-runtime-handler",
 	}
 
 	expected := &runtime.PodSandboxStatus{
@@ -73,6 +74,7 @@ func TestPodSandboxStatus(t *testing.T) {
 		},
 		Labels:         config.GetLabels(),
 		Annotations:    config.GetAnnotations(),
+		RuntimeHandler: "test-runtime-handler",
 	}
 	for desc, test := range map[string]struct {
 		state         sandboxstore.State