Trigger container cleanup within a pod when a container exiting event is detected.

pkg/kubelet/pod_container_deletor_test.go

@@ -0,0 +1,69 @@
+/*
+Copyright 2016 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 kubelet
+
+import (
+	"reflect"
+	"testing"
+	"time"
+
+	kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
+	containertest "k8s.io/kubernetes/pkg/kubelet/container/testing"
+)
+
+func testGetContainersToDeleteInPod(t *testing.T) {
+	pod := kubecontainer.PodStatus{
+		ContainerStatuses: []*kubecontainer.ContainerStatus{
+			{
+				ID:        kubecontainer.ContainerID{Type: "test", ID: "1"},
+				Name:      "foo",
+				CreatedAt: time.Now(),
+				State:     kubecontainer.ContainerStateExited,
+			},
+			{
+				ID:        kubecontainer.ContainerID{Type: "test", ID: "2"},
+				Name:      "bar",
+				CreatedAt: time.Now().Add(time.Second),
+				State:     kubecontainer.ContainerStateExited,
+			},
+			{
+				ID:        kubecontainer.ContainerID{Type: "test", ID: "3"},
+				Name:      "bar",
+				CreatedAt: time.Now().Add(2 * time.Second),
+				State:     kubecontainer.ContainerStateExited,
+			},
+			{
+				ID:        kubecontainer.ContainerID{Type: "test", ID: "4"},
+				Name:      "bar",
+				CreatedAt: time.Now().Add(3 * time.Second),
+				State:     kubecontainer.ContainerStateExited,
+			},
+			{
+				ID:        kubecontainer.ContainerID{Type: "test", ID: "5"},
+				Name:      "bar",
+				CreatedAt: time.Now().Add(4 * time.Second),
+				State:     kubecontainer.ContainerStateRunning,
+			},
+		},
+	}
+
+	expectedCandidates := []*kubecontainer.ContainerStatus{pod.ContainerStatuses[2], pod.ContainerStatuses[1]}
+	candidates := newPodContainerDeletor(&containertest.FakeRuntime{}, 1).getContainersToDeleteInPod("2", &pod)
+	if !reflect.DeepEqual(candidates, expectedCandidates) {
+		t.Errorf("expected %v got %v", expectedCandidates, candidates)
+	}
+}