func (oc *OvsController) updatePodNetwork(namespace string, netID, oldNetID uint) error {
// Update OF rules for the existing/old pods in the namespace
pods, err := oc.Registry.GetRunningPods(oc.hostName, namespace)
if err != nil {
return err
}
for _, pod := range pods {
err := oc.pluginHooks.UpdatePod(pod.Namespace, pod.Name, kubetypes.DockerID(pod.ContainerID))
if err != nil {
return err
}
}
// Update OF rules for the old services in the namespace
services, err := oc.Registry.GetServicesForNamespace(namespace)
if err != nil {
return err
}
for _, svc := range services {
for _, port := range svc.Ports {
oc.flowController.DelServiceOFRules(oldNetID, svc.IP, port.Protocol, port.Port)
oc.flowController.AddServiceOFRules(netID, svc.IP, port.Protocol, port.Port)
}
}
return nil
}
func TestDockerContainerCommand(t *testing.T) {
runner := &DockerManager{}
containerID := kubetypes.DockerID("1234").ContainerID()
command := []string{"ls"}
cmd, _ := runner.getRunInContainerCommand(containerID, command)
if cmd.Dir != "/var/lib/docker/execdriver/native/"+containerID.ID {
t.Errorf("unexpected command CWD: %s", cmd.Dir)
}
if !reflect.DeepEqual(cmd.Args, []string{"/usr/sbin/nsinit", "exec", "ls"}) {
t.Errorf("unexpected command args: %s", cmd.Args)
}
}
// Converts docker.APIContainers to kubecontainer.Container.
func toRuntimeContainer(c *docker.APIContainers) (*kubecontainer.Container, error) {
if c == nil {
return nil, fmt.Errorf("unable to convert a nil pointer to a runtime container")
}
dockerName, hash, err := getDockerContainerNameInfo(c)
if err != nil {
return nil, err
}
return &kubecontainer.Container{
ID: kubeletTypes.DockerID(c.ID).ContainerID(),
Name: dockerName.ContainerName,
Image: c.Image,
Hash: hash,
Created: c.Created,
}, nil
}
// GetKubeletDockerContainers lists all container or just the running ones.
// Returns a map of docker containers that we manage, keyed by container ID.
// TODO: Move this function with dockerCache to DockerManager.
func GetKubeletDockerContainers(client DockerInterface, allContainers bool) (DockerContainers, error) {
result := make(DockerContainers)
containers, err := client.ListContainers(docker.ListContainersOptions{All: allContainers})
if err != nil {
return nil, err
}
for i := range containers {
container := &containers[i]
if len(container.Names) == 0 {
continue
}
// Skip containers that we didn't create to allow users to manually
// spin up their own containers if they want.
// TODO(dchen1107): Remove the old separator "--" by end of Oct
if !strings.HasPrefix(container.Names[0], "/"+containerNamePrefix+"_") &&
!strings.HasPrefix(container.Names[0], "/"+containerNamePrefix+"--") {
glog.V(3).Infof("Docker Container: %s is not managed by kubelet.", container.Names[0])
continue
}
result[kubetypes.DockerID(container.ID)] = container
}
return result, nil
}
// Converts docker.APIContainers to kubecontainer.Container.
func toRuntimeContainer(c *docker.APIContainers) (*kubecontainer.Container, error) {
if c == nil {
return nil, fmt.Errorf("unable to convert a nil pointer to a runtime container")
}
dockerName, hash, err := getDockerContainerNameInfo(c)
if err != nil {
return nil, err
}
return &kubecontainer.Container{
ID: kubetypes.DockerID(c.ID).ContainerID(),
Name: dockerName.ContainerName,
Image: c.Image,
Hash: hash,
Created: c.Created,
// (random-liu) docker uses status to indicate whether a container is running or exited.
// However, in kubernetes we usually use state to indicate whether a container is running or exited,
// while use status to indicate the comprehensive status of the container. So we have different naming
// norm here.
State: mapState(c.Status),
}, nil
}
func TestFindContainersByPod(t *testing.T) {
tests := []struct {
containerList []docker.APIContainers
exitedContainerList []docker.APIContainers
all bool
expectedPods []*kubecontainer.Pod
}{
{
[]docker.APIContainers{
{
ID: "foobar",
Names: []string{"/k8s_foobar.1234_qux_ns_1234_42"},
},
{
ID: "barbar",
Names: []string{"/k8s_barbar.1234_qux_ns_2343_42"},
},
{
ID: "baz",
Names: []string{"/k8s_baz.1234_qux_ns_1234_42"},
},
},
[]docker.APIContainers{
{
ID: "barfoo",
Names: []string{"/k8s_barfoo.1234_qux_ns_1234_42"},
},
{
ID: "bazbaz",
Names: []string{"/k8s_bazbaz.1234_qux_ns_5678_42"},
},
},
false,
[]*kubecontainer.Pod{
{
ID: "1234",
Name: "qux",
Namespace: "ns",
Containers: []*kubecontainer.Container{
{
ID: kubetypes.DockerID("foobar").ContainerID(),
Name: "foobar",
Hash: 0x1234,
State: kubecontainer.ContainerStateUnknown,
},
{
ID: kubetypes.DockerID("baz").ContainerID(),
Name: "baz",
Hash: 0x1234,
State: kubecontainer.ContainerStateUnknown,
},
},
},
{
ID: "2343",
Name: "qux",
Namespace: "ns",
Containers: []*kubecontainer.Container{
{
ID: kubetypes.DockerID("barbar").ContainerID(),
Name: "barbar",
Hash: 0x1234,
State: kubecontainer.ContainerStateUnknown,
},
},
},
},
},
{
[]docker.APIContainers{
{
ID: "foobar",
Names: []string{"/k8s_foobar.1234_qux_ns_1234_42"},
},
{
ID: "barbar",
Names: []string{"/k8s_barbar.1234_qux_ns_2343_42"},
},
{
ID: "baz",
Names: []string{"/k8s_baz.1234_qux_ns_1234_42"},
},
},
[]docker.APIContainers{
{
ID: "barfoo",
Names: []string{"/k8s_barfoo.1234_qux_ns_1234_42"},
},
{
ID: "bazbaz",
Names: []string{"/k8s_bazbaz.1234_qux_ns_5678_42"},
},
},
true,
[]*kubecontainer.Pod{
{
ID: "1234",
Name: "qux",
Namespace: "ns",
Containers: []*kubecontainer.Container{
{
ID: kubetypes.DockerID("foobar").ContainerID(),
Name: "foobar",
Hash: 0x1234,
State: kubecontainer.ContainerStateUnknown,
},
{
ID: kubetypes.DockerID("barfoo").ContainerID(),
Name: "barfoo",
Hash: 0x1234,
State: kubecontainer.ContainerStateUnknown,
},
{
ID: kubetypes.DockerID("baz").ContainerID(),
Name: "baz",
Hash: 0x1234,
State: kubecontainer.ContainerStateUnknown,
},
},
},
{
ID: "2343",
Name: "qux",
Namespace: "ns",
Containers: []*kubecontainer.Container{
{
ID: kubetypes.DockerID("barbar").ContainerID(),
Name: "barbar",
Hash: 0x1234,
State: kubecontainer.ContainerStateUnknown,
},
},
},
{
ID: "5678",
Name: "qux",
Namespace: "ns",
Containers: []*kubecontainer.Container{
{
ID: kubetypes.DockerID("bazbaz").ContainerID(),
Name: "bazbaz",
Hash: 0x1234,
State: kubecontainer.ContainerStateUnknown,
},
},
},
},
},
{
[]docker.APIContainers{},
[]docker.APIContainers{},
true,
nil,
},
}
fakeClient := &FakeDockerClient{}
np, _ := network.InitNetworkPlugin([]network.NetworkPlugin{}, "", network.NewFakeHost(nil))
// image back-off is set to nil, this test shouldnt pull images
containerManager := NewFakeDockerManager(fakeClient, &record.FakeRecorder{}, nil, nil, &cadvisorapi.MachineInfo{}, PodInfraContainerImage, 0, 0, "", kubecontainer.FakeOS{}, np, nil, nil, nil)
for i, test := range tests {
fakeClient.ContainerList = test.containerList
fakeClient.ExitedContainerList = test.exitedContainerList
result, _ := containerManager.GetPods(test.all)
for i := range result {
sort.Sort(containersByID(result[i].Containers))
}
for i := range test.expectedPods {
sort.Sort(containersByID(test.expectedPods[i].Containers))
}
sort.Sort(podsByID(result))
sort.Sort(podsByID(test.expectedPods))
if !reflect.DeepEqual(test.expectedPods, result) {
t.Errorf("%d: expected: %#v, saw: %#v", i, test.expectedPods, result)
}
}
}
