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Merge pull request #23699 from Random-Liu/container-related-functions

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Automatic merge from submit-queue

Kubelet: Refactor container related functions in DockerInterface

For #23563.
Based on #23506, will rebase after #23506 is merged.

The last 4 commits of this PR are new.
This PR refactors all container lifecycle related functions in DockerInterface, including:
* ListContainers
* InspectContainer
* CreateContainer
* StartContainer
* StopContainer
* RemoveContainer

@kubernetes/sig-node
This commit is contained in:
k8s-merge-robot 2016-04-16 21:41:19 -07:00
commit 2e87b0e363
18 changed files with 427 additions and 429 deletions
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9
contrib/mesos/pkg/executor/executor.go
View File

@ -28,7 +28,7 @@ import (
clientset "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
"github.com/fsouza/go-dockerclient"
dockertypes "github.com/docker/engine-api/types"
"github.com/gogo/protobuf/proto"
log "github.com/golang/glog"
bindings "github.com/mesos/mesos-go/executor"
@ -655,14 +655,13 @@ func (k *Executor) doShutdown(driver bindings.ExecutorDriver) {
// Destroy existing k8s containers
func (k *Executor) killKubeletContainers() {
if containers, err := dockertools.GetKubeletDockerContainers(k.dockerClient, true); err == nil {
opts := docker.RemoveContainerOptions{
opts := dockertypes.ContainerRemoveOptions{
RemoveVolumes: true,
Force: true,
}
for _, container := range containers {
opts.ID = container.ID
log.V(2).Infof("Removing container: %v", opts.ID)
if err := k.dockerClient.RemoveContainer(opts); err != nil {
log.V(2).Infof("Removing container: %v", container.ID)
if err := k.dockerClient.RemoveContainer(container.ID, opts); err != nil {
log.Warning(err)
}
}

16
pkg/kubelet/dockertools/container_gc.go
View File

@ -24,7 +24,7 @@ import (
"sort"
"time"
docker "github.com/fsouza/go-dockerclient"
dockertypes "github.com/docker/engine-api/types"
"github.com/golang/glog"
kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
"k8s.io/kubernetes/pkg/types"
@ -111,7 +111,7 @@ func (cgc *containerGC) removeOldestN(containers []containerGCInfo, toRemove int
// Remove from oldest to newest (last to first).
numToKeep := len(containers) - toRemove
for i := numToKeep; i < len(containers); i++ {
err := cgc.client.RemoveContainer(docker.RemoveContainerOptions{ID: containers[i].id, RemoveVolumes: true})
err := cgc.client.RemoveContainer(containers[i].id, dockertypes.ContainerRemoveOptions{RemoveVolumes: true})
if err != nil {
glog.Warningf("Failed to remove dead container %q: %v", containers[i].name, err)
}
@ -145,14 +145,20 @@ func (cgc *containerGC) evictableContainers(minAge time.Duration) (containersByE
continue
} else if data.State.Running {
continue
} else if newestGCTime.Before(data.Created) {
}
created, err := parseDockerTimestamp(data.Created)
if err != nil {
glog.Errorf("Failed to parse Created timestamp %q for container %q", data.Created, container.ID)
}
if newestGCTime.Before(created) {
continue
}
containerInfo := containerGCInfo{
id: container.ID,
name: container.Names[0],
createTime: data.Created,
createTime: created,
}
containerName, _, err := ParseDockerName(container.Names[0])
@ -189,7 +195,7 @@ func (cgc *containerGC) GarbageCollect(gcPolicy kubecontainer.ContainerGCPolicy)
// Remove unidentified containers.
for _, container := range unidentifiedContainers {
glog.Infof("Removing unidentified dead container %q with ID %q", container.name, container.id)
err = cgc.client.RemoveContainer(docker.RemoveContainerOptions{ID: container.id, RemoveVolumes: true})
err = cgc.client.RemoveContainer(container.id, dockertypes.ContainerRemoveOptions{RemoveVolumes: true})
if err != nil {
glog.Warningf("Failed to remove unidentified dead container %q: %v", container.name, err)
}

55
pkg/kubelet/dockertools/container_gc_test.go
View File

@ -23,7 +23,6 @@ import (
"testing"
"time"
docker "github.com/fsouza/go-dockerclient"
"github.com/stretchr/testify/assert"
"k8s.io/kubernetes/pkg/api"
kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
@ -44,26 +43,22 @@ func makeTime(id int) time.Time {
}
// Makes a container with the specified properties.
func makeContainer(id, uid, name string, running bool, created time.Time) *docker.Container {
return &docker.Container{
Name: fmt.Sprintf("/k8s_%s_bar_new_%s_42", name, uid),
State: docker.State{
Running: running,
},
ID: id,
Created: created,
func makeContainer(id, uid, name string, running bool, created time.Time) *FakeContainer {
return &FakeContainer{
Name: fmt.Sprintf("/k8s_%s_bar_new_%s_42", name, uid),
Running: running,
ID: id,
CreatedAt: created,
}
}
// Makes a container with unidentified name and specified properties.
func makeUndefinedContainer(id string, running bool, created time.Time) *docker.Container {
return &docker.Container{
Name: "/k8s_unidentified",
State: docker.State{
Running: running,
},
ID: id,
Created: created,
func makeUndefinedContainer(id string, running bool, created time.Time) *FakeContainer {
return &FakeContainer{
Name: "/k8s_unidentified",
Running: running,
ID: id,
CreatedAt: created,
}
}
@ -96,7 +91,7 @@ func verifyStringArrayEqualsAnyOrder(t *testing.T, actual, expected []string) {
func TestGarbageCollectZeroMaxContainers(t *testing.T) {
gc, fakeDocker := newTestContainerGC(t)
fakeDocker.SetFakeContainers([]*docker.Container{
fakeDocker.SetFakeContainers([]*FakeContainer{
makeContainer("1876", "foo", "POD", false, makeTime(0)),
})
addPods(gc.podGetter, "foo")
@ -107,7 +102,7 @@ func TestGarbageCollectZeroMaxContainers(t *testing.T) {
func TestGarbageCollectNoMaxPerPodContainerLimit(t *testing.T) {
gc, fakeDocker := newTestContainerGC(t)
fakeDocker.SetFakeContainers([]*docker.Container{
fakeDocker.SetFakeContainers([]*FakeContainer{
makeContainer("1876", "foo", "POD", false, makeTime(0)),
makeContainer("2876", "foo1", "POD", false, makeTime(1)),
makeContainer("3876", "foo2", "POD", false, makeTime(2)),
@ -122,7 +117,7 @@ func TestGarbageCollectNoMaxPerPodContainerLimit(t *testing.T) {
func TestGarbageCollectNoMaxLimit(t *testing.T) {
gc, fakeDocker := newTestContainerGC(t)
fakeDocker.SetFakeContainers([]*docker.Container{
fakeDocker.SetFakeContainers([]*FakeContainer{
makeContainer("1876", "foo", "POD", false, makeTime(0)),
makeContainer("2876", "foo1", "POD", false, makeTime(0)),
makeContainer("3876", "foo2", "POD", false, makeTime(0)),
@ -136,12 +131,12 @@ func TestGarbageCollectNoMaxLimit(t *testing.T) {
func TestGarbageCollect(t *testing.T) {
tests := []struct {
containers []*docker.Container
containers []*FakeContainer
expectedRemoved []string
}{
// Don't remove containers started recently.
{
containers: []*docker.Container{
containers: []*FakeContainer{
makeContainer("1876", "foo", "POD", false, time.Now()),
makeContainer("2876", "foo", "POD", false, time.Now()),
makeContainer("3876", "foo", "POD", false, time.Now()),
@ -149,7 +144,7 @@ func TestGarbageCollect(t *testing.T) {
},
// Remove oldest containers.
{
containers: []*docker.Container{
containers: []*FakeContainer{
makeContainer("1876", "foo", "POD", false, makeTime(0)),
makeContainer("2876", "foo", "POD", false, makeTime(1)),
makeContainer("3876", "foo", "POD", false, makeTime(2)),
@ -158,7 +153,7 @@ func TestGarbageCollect(t *testing.T) {
},
// Only remove non-running containers.
{
containers: []*docker.Container{
containers: []*FakeContainer{
makeContainer("1876", "foo", "POD", true, makeTime(0)),
makeContainer("2876", "foo", "POD", false, makeTime(1)),
makeContainer("3876", "foo", "POD", false, makeTime(2)),
@ -168,13 +163,13 @@ func TestGarbageCollect(t *testing.T) {
},
// Less than maxContainerCount doesn't delete any.
{
containers: []*docker.Container{
containers: []*FakeContainer{
makeContainer("1876", "foo", "POD", false, makeTime(0)),
},
},
// maxContainerCount applies per (UID,container) pair.
{
containers: []*docker.Container{
containers: []*FakeContainer{
makeContainer("1876", "foo", "POD", false, makeTime(0)),
makeContainer("2876", "foo", "POD", false, makeTime(1)),
makeContainer("3876", "foo", "POD", false, makeTime(2)),
@ -189,7 +184,7 @@ func TestGarbageCollect(t *testing.T) {
},
// Remove non-running unidentified Kubernetes containers.
{
containers: []*docker.Container{
containers: []*FakeContainer{
makeUndefinedContainer("1876", true, makeTime(0)),
makeUndefinedContainer("2876", false, makeTime(0)),
makeContainer("3876", "foo", "POD", false, makeTime(0)),
@ -198,7 +193,7 @@ func TestGarbageCollect(t *testing.T) {
},
// Max limit applied and tries to keep from every pod.
{
containers: []*docker.Container{
containers: []*FakeContainer{
makeContainer("1876", "foo", "POD", false, makeTime(0)),
makeContainer("2876", "foo", "POD", false, makeTime(1)),
makeContainer("3876", "foo1", "POD", false, makeTime(0)),
@ -214,7 +209,7 @@ func TestGarbageCollect(t *testing.T) {
},
// If more pods than limit allows, evicts oldest pod.
{
containers: []*docker.Container{
containers: []*FakeContainer{
makeContainer("1876", "foo", "POD", false, makeTime(1)),
makeContainer("2876", "foo", "POD", false, makeTime(2)),
makeContainer("3876", "foo1", "POD", false, makeTime(1)),
@ -230,7 +225,7 @@ func TestGarbageCollect(t *testing.T) {
},
// Containers for deleted pods should be GC'd.
{
containers: []*docker.Container{
containers: []*FakeContainer{
makeContainer("1876", "foo", "POD", false, makeTime(1)),
makeContainer("2876", "foo", "POD", false, makeTime(2)),
makeContainer("3876", "deleted", "POD", false, makeTime(1)),

7
pkg/kubelet/dockertools/convert.go
View File

@ -20,6 +20,7 @@ import (
"fmt"
"strings"
dockertypes "github.com/docker/engine-api/types"
docker "github.com/fsouza/go-dockerclient"
kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
)
@ -32,7 +33,7 @@ const (
)
func mapState(state string) kubecontainer.ContainerState {
// Parse the state string in docker.APIContainers. This could break when
// Parse the state string in dockertypes.Container. This could break when
// we upgrade docker.
switch {
case strings.HasPrefix(state, statusRunningPrefix):
@ -44,8 +45,8 @@ func mapState(state string) kubecontainer.ContainerState {
}
}
// Converts docker.APIContainers to kubecontainer.Container.
func toRuntimeContainer(c *docker.APIContainers) (*kubecontainer.Container, error) {
// Converts dockertypes.Container to kubecontainer.Container.
func toRuntimeContainer(c *dockertypes.Container) (*kubecontainer.Container, error) {
if c == nil {
return nil, fmt.Errorf("unable to convert a nil pointer to a runtime container")
}

3
pkg/kubelet/dockertools/convert_test.go
View File

@ -20,6 +20,7 @@ import (
"reflect"
"testing"
dockertypes "github.com/docker/engine-api/types"
docker "github.com/fsouza/go-dockerclient"
kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
)
@ -43,7 +44,7 @@ func TestMapState(t *testing.T) {
}
func TestToRuntimeContainer(t *testing.T) {
original := &docker.APIContainers{
original := &dockertypes.Container{
ID: "ab2cdf",
Image: "bar_image",
Created: 12345,

19
pkg/kubelet/dockertools/docker.go
View File

@ -26,6 +26,7 @@ import (
"github.com/docker/docker/pkg/jsonmessage"
dockerapi "github.com/docker/engine-api/client"
dockertypes "github.com/docker/engine-api/types"
docker "github.com/fsouza/go-dockerclient"
"github.com/golang/glog"
"k8s.io/kubernetes/pkg/api"
@ -57,12 +58,12 @@ const (
// DockerInterface is an abstract interface for testability. It abstracts the interface of docker.Client.
type DockerInterface interface {
ListContainers(options docker.ListContainersOptions) ([]docker.APIContainers, error)
InspectContainer(id string) (*docker.Container, error)
CreateContainer(docker.CreateContainerOptions) (*docker.Container, error)
StartContainer(id string, hostConfig *docker.HostConfig) error
StopContainer(id string, timeout uint) error
RemoveContainer(opts docker.RemoveContainerOptions) error
ListContainers(options dockertypes.ContainerListOptions) ([]dockertypes.Container, error)
InspectContainer(id string) (*dockertypes.ContainerJSON, error)
CreateContainer(dockertypes.ContainerCreateConfig) (*dockertypes.ContainerCreateResponse, error)
StartContainer(id string) error
StopContainer(id string, timeout int) error
RemoveContainer(id string, opts dockertypes.ContainerRemoveOptions) error
InspectImage(image string) (*docker.Image, error)
ListImages(opts docker.ListImagesOptions) ([]docker.APIImages, error)
PullImage(opts docker.PullImageOptions, auth docker.AuthConfiguration) error
@ -346,9 +347,9 @@ func milliCPUToShares(milliCPU int64) int64 {
// GetKubeletDockerContainers lists all container or just the running ones.
// Returns a list of docker containers that we manage
// TODO: Move this function with dockerCache to DockerManager.
func GetKubeletDockerContainers(client DockerInterface, allContainers bool) ([]*docker.APIContainers, error) {
result := []*docker.APIContainers{}
containers, err := client.ListContainers(docker.ListContainersOptions{All: allContainers})
func GetKubeletDockerContainers(client DockerInterface, allContainers bool) ([]*dockertypes.Container, error) {
result := []*dockertypes.Container{}
containers, err := client.ListContainers(dockertypes.ContainerListOptions{All: allContainers})
if err != nil {
return nil, err
}

44
pkg/kubelet/dockertools/docker_test.go
View File

@ -27,6 +27,8 @@ import (
"testing"
"github.com/docker/docker/pkg/jsonmessage"
dockertypes "github.com/docker/engine-api/types"
dockernat "github.com/docker/go-connections/nat"
docker "github.com/fsouza/go-dockerclient"
cadvisorapi "github.com/google/cadvisor/info/v1"
"k8s.io/kubernetes/cmd/kubelet/app/options"
@ -62,7 +64,7 @@ func verifyStringArrayEquals(t *testing.T, actual, expected []string) {
}
}
func findPodContainer(dockerContainers []*docker.APIContainers, podFullName string, uid types.UID, containerName string) (*docker.APIContainers, bool, uint64) {
func findPodContainer(dockerContainers []*dockertypes.Container, podFullName string, uid types.UID, containerName string) (*dockertypes.Container, bool, uint64) {
for _, dockerContainer := range dockerContainers {
if len(dockerContainer.Names) == 0 {
continue
@ -82,7 +84,7 @@ func findPodContainer(dockerContainers []*docker.APIContainers, podFullName stri
func TestGetContainerID(t *testing.T) {
fakeDocker := NewFakeDockerClient()
fakeDocker.SetFakeRunningContainers([]*docker.Container{
fakeDocker.SetFakeRunningContainers([]*FakeContainer{
{
ID: "foobar",
Name: "/k8s_foo_qux_ns_1234_42",
@ -98,7 +100,7 @@ func TestGetContainerID(t *testing.T) {
t.Errorf("Expected no error, Got %#v", err)
}
if len(dockerContainers) != 2 {
t.Errorf("Expected %#v, Got %#v", fakeDocker.ContainerList, dockerContainers)
t.Errorf("Expected %#v, Got %#v", fakeDocker.RunningContainerList, dockerContainers)
}
verifyCalls(t, fakeDocker, []string{"list"})
@ -522,14 +524,14 @@ func (b containersByID) Less(i, j int) bool { return b[i].ID.ID < b[j].ID.ID }
func TestFindContainersByPod(t *testing.T) {
tests := []struct {
containerList []docker.APIContainers
exitedContainerList []docker.APIContainers
all bool
expectedPods []*kubecontainer.Pod
runningContainerList []dockertypes.Container
exitedContainerList []dockertypes.Container
all bool
expectedPods []*kubecontainer.Pod
}{
{
[]docker.APIContainers{
[]dockertypes.Container{
{
ID: "foobar",
Names: []string{"/k8s_foobar.1234_qux_ns_1234_42"},
@ -543,7 +545,7 @@ func TestFindContainersByPod(t *testing.T) {
Names: []string{"/k8s_baz.1234_qux_ns_1234_42"},
},
},
[]docker.APIContainers{
[]dockertypes.Container{
{
ID: "barfoo",
Names: []string{"/k8s_barfoo.1234_qux_ns_1234_42"},
@ -590,7 +592,7 @@ func TestFindContainersByPod(t *testing.T) {
},
},
{
[]docker.APIContainers{
[]dockertypes.Container{
{
ID: "foobar",
Names: []string{"/k8s_foobar.1234_qux_ns_1234_42"},
@ -604,7 +606,7 @@ func TestFindContainersByPod(t *testing.T) {
Names: []string{"/k8s_baz.1234_qux_ns_1234_42"},
},
},
[]docker.APIContainers{
[]dockertypes.Container{
{
ID: "barfoo",
Names: []string{"/k8s_barfoo.1234_qux_ns_1234_42"},
@ -670,8 +672,8 @@ func TestFindContainersByPod(t *testing.T) {
},
},
{
[]docker.APIContainers{},
[]docker.APIContainers{},
[]dockertypes.Container{},
[]dockertypes.Container{},
true,
nil,
},
@ -681,7 +683,7 @@ func TestFindContainersByPod(t *testing.T) {
// image back-off is set to nil, this test should not pull images
containerManager := NewFakeDockerManager(fakeClient, &record.FakeRecorder{}, nil, nil, &cadvisorapi.MachineInfo{}, options.GetDefaultPodInfraContainerImage(), 0, 0, "", containertest.FakeOS{}, np, nil, nil, nil)
for i, test := range tests {
fakeClient.ContainerList = test.containerList
fakeClient.RunningContainerList = test.runningContainerList
fakeClient.ExitedContainerList = test.exitedContainerList
result, _ := containerManager.GetPods(test.all)
@ -749,37 +751,37 @@ func TestMakePortsAndBindings(t *testing.T) {
}
// Construct expected bindings
expectPortBindings := map[string][]docker.PortBinding{
expectPortBindings := map[string][]dockernat.PortBinding{
"80/tcp": {
docker.PortBinding{
dockernat.PortBinding{
HostPort: "8080",
HostIP: "127.0.0.1",
},
},
"443/tcp": {
docker.PortBinding{
dockernat.PortBinding{
HostPort: "443",
HostIP: "",
},
docker.PortBinding{
dockernat.PortBinding{
HostPort: "446",
HostIP: "",
},
},
"443/udp": {
docker.PortBinding{
dockernat.PortBinding{
HostPort: "446",
HostIP: "",
},
},
"444/udp": {
docker.PortBinding{
dockernat.PortBinding{
HostPort: "444",
HostIP: "",
},
},
"445/tcp": {
docker.PortBinding{
dockernat.PortBinding{
HostPort: "445",
HostIP: "",
},

7
pkg/kubelet/dockertools/exec.go
View File

@ -23,6 +23,7 @@ import (
"os/exec"
"time"
dockertypes "github.com/docker/engine-api/types"
docker "github.com/fsouza/go-dockerclient"
"github.com/golang/glog"
kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
@ -30,14 +31,14 @@ import (
// ExecHandler knows how to execute a command in a running Docker container.
type ExecHandler interface {
ExecInContainer(client DockerInterface, container *docker.Container, cmd []string, stdin io.Reader, stdout, stderr io.WriteCloser, tty bool) error
ExecInContainer(client DockerInterface, container *dockertypes.ContainerJSON, cmd []string, stdin io.Reader, stdout, stderr io.WriteCloser, tty bool) error
}
// NsenterExecHandler executes commands in Docker containers using nsenter.
type NsenterExecHandler struct{}
// TODO should we support nsenter in a container, running with elevated privs and --pid=host?
func (*NsenterExecHandler) ExecInContainer(client DockerInterface, container *docker.Container, cmd []string, stdin io.Reader, stdout, stderr io.WriteCloser, tty bool) error {
func (*NsenterExecHandler) ExecInContainer(client DockerInterface, container *dockertypes.ContainerJSON, cmd []string, stdin io.Reader, stdout, stderr io.WriteCloser, tty bool) error {
nsenter, err := exec.LookPath("nsenter")
if err != nil {
return fmt.Errorf("exec unavailable - unable to locate nsenter")
@ -98,7 +99,7 @@ func (*NsenterExecHandler) ExecInContainer(client DockerInterface, container *do
// NativeExecHandler executes commands in Docker containers using Docker's exec API.
type NativeExecHandler struct{}
func (*NativeExecHandler) ExecInContainer(client DockerInterface, container *docker.Container, cmd []string, stdin io.Reader, stdout, stderr io.WriteCloser, tty bool) error {
func (*NativeExecHandler) ExecInContainer(client DockerInterface, container *dockertypes.ContainerJSON, cmd []string, stdin io.Reader, stdout, stderr io.WriteCloser, tty bool) error {
createOpts := docker.CreateExecOptions{
Container: container.ID,
Cmd: cmd,

173
pkg/kubelet/dockertools/fake_docker_client.go
View File

@ -26,6 +26,8 @@ import (
"sync"
"time"
dockertypes "github.com/docker/engine-api/types"
dockercontainer "github.com/docker/engine-api/types/container"
docker "github.com/fsouza/go-dockerclient"
"k8s.io/kubernetes/pkg/api"
@ -35,14 +37,14 @@ import (
// FakeDockerClient is a simple fake docker client, so that kubelet can be run for testing without requiring a real docker setup.
type FakeDockerClient struct {
sync.Mutex
ContainerList []docker.APIContainers
ExitedContainerList []docker.APIContainers
ContainerMap map[string]*docker.Container
Image *docker.Image
Images []docker.APIImages
Errors map[string]error
called []string
pulled []string
RunningContainerList []dockertypes.Container
ExitedContainerList []dockertypes.Container
ContainerMap map[string]*dockertypes.ContainerJSON
Image *docker.Image
Images []docker.APIImages
Errors map[string]error
called []string
pulled []string
// Created, Stopped and Removed all container docker ID
Created []string
Stopped []string
@ -68,7 +70,7 @@ func NewFakeDockerClientWithVersion(version, apiVersion string) *FakeDockerClien
VersionInfo: docker.Env{fmt.Sprintf("Version=%s", version), fmt.Sprintf("ApiVersion=%s", apiVersion)},
Errors: make(map[string]error),
RemovedImages: sets.String{},
ContainerMap: make(map[string]*docker.Container),
ContainerMap: make(map[string]*dockertypes.ContainerJSON),
}
}
@ -102,35 +104,74 @@ func (f *FakeDockerClient) ClearCalls() {
f.Removed = []string{}
}
func (f *FakeDockerClient) SetFakeContainers(containers []*docker.Container) {
// Because the new data type returned by engine-api is too complex to manually initialize, we need a
// fake container which is easier to initialize.
type FakeContainer struct {
ID string
Name string
Running bool
ExitCode int
Pid int
CreatedAt time.Time
StartedAt time.Time
FinishedAt time.Time
Config *dockercontainer.Config
HostConfig *dockercontainer.HostConfig
}
// convertFakeContainer converts the fake container to real container
func convertFakeContainer(f *FakeContainer) *dockertypes.ContainerJSON {
if f.Config == nil {
f.Config = &dockercontainer.Config{}
}
if f.HostConfig == nil {
f.HostConfig = &dockercontainer.HostConfig{}
}
return &dockertypes.ContainerJSON{
ContainerJSONBase: &dockertypes.ContainerJSONBase{
ID: f.ID,
Name: f.Name,
State: &dockertypes.ContainerState{
Running: f.Running,
ExitCode: f.ExitCode,
Pid: f.Pid,
StartedAt: dockerTimestampToString(f.StartedAt),
FinishedAt: dockerTimestampToString(f.FinishedAt),
},
Created: dockerTimestampToString(f.CreatedAt),
HostConfig: f.HostConfig,
},
Config: f.Config,
NetworkSettings: &dockertypes.NetworkSettings{},
}
}
func (f *FakeDockerClient) SetFakeContainers(containers []*FakeContainer) {
f.Lock()
defer f.Unlock()
// Reset the lists and the map.
f.ContainerMap = map[string]*docker.Container{}
f.ContainerList = []docker.APIContainers{}
f.ExitedContainerList = []docker.APIContainers{}
f.ContainerMap = map[string]*dockertypes.ContainerJSON{}
f.RunningContainerList = []dockertypes.Container{}
f.ExitedContainerList = []dockertypes.Container{}
for i := range containers {
c := containers[i]
if c.Config == nil {
c.Config = &docker.Config{}
}
f.ContainerMap[c.ID] = c
apiContainer := docker.APIContainers{
f.ContainerMap[c.ID] = convertFakeContainer(c)
container := dockertypes.Container{
Names: []string{c.Name},
ID: c.ID,
}
if c.State.Running {
f.ContainerList = append(f.ContainerList, apiContainer)
if c.Running {
f.RunningContainerList = append(f.RunningContainerList, container)
} else {
f.ExitedContainerList = append(f.ExitedContainerList, apiContainer)
f.ExitedContainerList = append(f.ExitedContainerList, container)
}
}
}
func (f *FakeDockerClient) SetFakeRunningContainers(containers []*docker.Container) {
func (f *FakeDockerClient) SetFakeRunningContainers(containers []*FakeContainer) {
for _, c := range containers {
c.State.Running = true
c.Running = true
}
f.SetFakeContainers(containers)
}
@ -210,12 +251,12 @@ func (f *FakeDockerClient) popError(op string) error {
// ListContainers is a test-spy implementation of DockerInterface.ListContainers.
// It adds an entry "list" to the internal method call record.
func (f *FakeDockerClient) ListContainers(options docker.ListContainersOptions) ([]docker.APIContainers, error) {
func (f *FakeDockerClient) ListContainers(options dockertypes.ContainerListOptions) ([]dockertypes.Container, error) {
f.Lock()
defer f.Unlock()
f.called = append(f.called, "list")
err := f.popError("list")
containerList := append([]docker.APIContainers{}, f.ContainerList...)
containerList := append([]dockertypes.Container{}, f.RunningContainerList...)
if options.All {
// Although the container is not sorted, but the container with the same name should be in order,
// that is enough for us now.
@ -227,7 +268,7 @@ func (f *FakeDockerClient) ListContainers(options docker.ListContainersOptions)
// InspectContainer is a test-spy implementation of DockerInterface.InspectContainer.
// It adds an entry "inspect" to the internal method call record.
func (f *FakeDockerClient) InspectContainer(id string) (*docker.Container, error) {
func (f *FakeDockerClient) InspectContainer(id string) (*dockertypes.ContainerJSON, error) {
f.Lock()
defer f.Unlock()
f.called = append(f.called, "inspect_container")
@ -264,7 +305,7 @@ func (f *FakeDockerClient) normalSleep(mean, stdDev, cutOffMillis int) {
// CreateContainer is a test-spy implementation of DockerInterface.CreateContainer.
// It adds an entry "create" to the internal method call record.
func (f *FakeDockerClient) CreateContainer(c docker.CreateContainerOptions) (*docker.Container, error) {
func (f *FakeDockerClient) CreateContainer(c dockertypes.ContainerCreateConfig) (*dockertypes.ContainerCreateResponse, error) {
f.Lock()
defer f.Unlock()
f.called = append(f.called, "create")
@ -274,25 +315,20 @@ func (f *FakeDockerClient) CreateContainer(c docker.CreateContainerOptions) (*do
// This is not a very good fake. We'll just add this container's name to the list.
// Docker likes to add a '/', so copy that behavior.
name := "/" + c.Name
id := name
f.Created = append(f.Created, name)
// The newest container should be in front, because we assume so in GetPodStatus()
f.ContainerList = append([]docker.APIContainers{
f.RunningContainerList = append([]dockertypes.Container{
{ID: name, Names: []string{name}, Image: c.Config.Image, Labels: c.Config.Labels},
}, f.ContainerList...)
container := docker.Container{ID: name, Name: name, Config: c.Config, HostConfig: c.HostConfig}
containerCopy := container
f.ContainerMap[name] = &containerCopy
}, f.RunningContainerList...)
f.ContainerMap[name] = convertFakeContainer(&FakeContainer{ID: id, Name: name, Config: c.Config, HostConfig: c.HostConfig})
f.normalSleep(100, 25, 25)
return &container, nil
return &dockertypes.ContainerCreateResponse{ID: id}, nil
}
// StartContainer is a test-spy implementation of DockerInterface.StartContainer.
// It adds an entry "start" to the internal method call record.
// The HostConfig at StartContainer will be deprecated from docker 1.10. Now in
// docker manager the HostConfig is set when CreateContainer().
// TODO(random-liu): Remove the HostConfig here when it is completely removed in
// docker 1.12.
func (f *FakeDockerClient) StartContainer(id string, _ *docker.HostConfig) error {
func (f *FakeDockerClient) StartContainer(id string) error {
f.Lock()
defer f.Unlock()
f.called = append(f.called, "start")
@ -301,14 +337,12 @@ func (f *FakeDockerClient) StartContainer(id string, _ *docker.HostConfig) error
}
container, ok := f.ContainerMap[id]
if !ok {
container = &docker.Container{ID: id, Name: id}
container = convertFakeContainer(&FakeContainer{ID: id, Name: id})
}
container.State = docker.State{
Running: true,
Pid: os.Getpid(),
StartedAt: time.Now(),
}
container.NetworkSettings = &docker.NetworkSettings{IPAddress: "2.3.4.5"}
container.State.Running = true
container.State.Pid = os.Getpid()
container.State.StartedAt = dockerTimestampToString(time.Now())
container.NetworkSettings.IPAddress = "2.3.4.5"
f.ContainerMap[id] = container
f.updateContainerStatus(id, statusRunningPrefix)
f.normalSleep(200, 50, 50)
@ -317,7 +351,7 @@ func (f *FakeDockerClient) StartContainer(id string, _ *docker.HostConfig) error
// StopContainer is a test-spy implementation of DockerInterface.StopContainer.
// It adds an entry "stop" to the internal method call record.
func (f *FakeDockerClient) StopContainer(id string, timeout uint) error {
func (f *FakeDockerClient) StopContainer(id string, timeout int) error {
f.Lock()
defer f.Unlock()
f.called = append(f.called, "stop")
@ -327,29 +361,27 @@ func (f *FakeDockerClient) StopContainer(id string, timeout uint) error {
f.Stopped = append(f.Stopped, id)
// Container status should be Updated before container moved to ExitedContainerList
f.updateContainerStatus(id, statusExitedPrefix)
var newList []docker.APIContainers
for _, container := range f.ContainerList {
var newList []dockertypes.Container
for _, container := range f.RunningContainerList {
if container.ID == id {
// The newest exited container should be in front. Because we assume so in GetPodStatus()
f.ExitedContainerList = append([]docker.APIContainers{container}, f.ExitedContainerList...)
f.ExitedContainerList = append([]dockertypes.Container{container}, f.ExitedContainerList...)
continue
}
newList = append(newList, container)
}
f.ContainerList = newList
f.RunningContainerList = newList
container, ok := f.ContainerMap[id]
if !ok {
container = &docker.Container{
ID: id,
Name: id,
State: docker.State{
Running: false,
StartedAt: time.Now().Add(-time.Second),
FinishedAt: time.Now(),
},
}
container = convertFakeContainer(&FakeContainer{
ID: id,
Name: id,
Running: false,
StartedAt: time.Now().Add(-time.Second),
FinishedAt: time.Now(),
})
} else {
container.State.FinishedAt = time.Now()
container.State.FinishedAt = dockerTimestampToString(time.Now())
container.State.Running = false
}
f.ContainerMap[id] = container
@ -357,7 +389,7 @@ func (f *FakeDockerClient) StopContainer(id string, timeout uint) error {
return nil
}
func (f *FakeDockerClient) RemoveContainer(opts docker.RemoveContainerOptions) error {
func (f *FakeDockerClient) RemoveContainer(id string, opts dockertypes.ContainerRemoveOptions) error {
f.Lock()
defer f.Unlock()
f.called = append(f.called, "remove")
@ -366,10 +398,10 @@ func (f *FakeDockerClient) RemoveContainer(opts docker.RemoveContainerOptions) e
return err
}
for i := range f.ExitedContainerList {
if f.ExitedContainerList[i].ID == opts.ID {
delete(f.ContainerMap, opts.ID)
if f.ExitedContainerList[i].ID == id {
delete(f.ContainerMap, id)
f.ExitedContainerList = append(f.ExitedContainerList[:i], f.ExitedContainerList[i+1:]...)
f.Removed = append(f.Removed, opts.ID)
f.Removed = append(f.Removed, id)
return nil
}
@ -387,7 +419,7 @@ func (f *FakeDockerClient) Logs(opts docker.LogsOptions) error {
return f.popError("logs")
}
// PullImage is a test-spy implementation of DockerInterface.StopContainer.
// PullImage is a test-spy implementation of DockerInterface.PullImage.
// It adds an entry "pull" to the internal method call record.
func (f *FakeDockerClient) PullImage(opts docker.PullImageOptions, auth docker.AuthConfiguration) error {
f.Lock()
@ -455,9 +487,9 @@ func (f *FakeDockerClient) RemoveImage(image string) error {
}
func (f *FakeDockerClient) updateContainerStatus(id, status string) {
for i := range f.ContainerList {
if f.ContainerList[i].ID == id {
f.ContainerList[i].Status = status
for i := range f.RunningContainerList {
if f.RunningContainerList[i].ID == id {
f.RunningContainerList[i].Status = status
}
}
}
@ -500,3 +532,8 @@ func (f *FakeDockerPuller) IsImagePresent(name string) (bool, error) {
}
return false, nil
}
// dockerTimestampToString converts the timestamp to string
func dockerTimestampToString(t time.Time) string {
return t.Format(time.RFC3339Nano)
}

17
pkg/kubelet/dockertools/instrumented_docker.go
View File

@ -19,6 +19,7 @@ package dockertools
import (
"time"
dockertypes "github.com/docker/engine-api/types"
docker "github.com/fsouza/go-dockerclient"
"k8s.io/kubernetes/pkg/kubelet/metrics"
)
@ -48,7 +49,7 @@ func recordError(operation string, err error) {
}
}
func (in instrumentedDockerInterface) ListContainers(options docker.ListContainersOptions) ([]docker.APIContainers, error) {
func (in instrumentedDockerInterface) ListContainers(options dockertypes.ContainerListOptions) ([]dockertypes.Container, error) {
const operation = "list_containers"
defer recordOperation(operation, time.Now())
@ -57,7 +58,7 @@ func (in instrumentedDockerInterface) ListContainers(options docker.ListContaine
return out, err
}
func (in instrumentedDockerInterface) InspectContainer(id string) (*docker.Container, error) {
func (in instrumentedDockerInterface) InspectContainer(id string) (*dockertypes.ContainerJSON, error) {
const operation = "inspect_container"
defer recordOperation(operation, time.Now())
@ -66,7 +67,7 @@ func (in instrumentedDockerInterface) InspectContainer(id string) (*docker.Conta
return out, err
}
func (in instrumentedDockerInterface) CreateContainer(opts docker.CreateContainerOptions) (*docker.Container, error) {
func (in instrumentedDockerInterface) CreateContainer(opts dockertypes.ContainerCreateConfig) (*dockertypes.ContainerCreateResponse, error) {
const operation = "create_container"
defer recordOperation(operation, time.Now())
@ -75,16 +76,16 @@ func (in instrumentedDockerInterface) CreateContainer(opts docker.CreateContaine
return out, err
}
func (in instrumentedDockerInterface) StartContainer(id string, hostConfig *docker.HostConfig) error {
func (in instrumentedDockerInterface) StartContainer(id string) error {
const operation = "start_container"
defer recordOperation(operation, time.Now())
err := in.client.StartContainer(id, hostConfig)
err := in.client.StartContainer(id)
recordError(operation, err)
return err
}
func (in instrumentedDockerInterface) StopContainer(id string, timeout uint) error {
func (in instrumentedDockerInterface) StopContainer(id string, timeout int) error {
const operation = "stop_container"
defer recordOperation(operation, time.Now())
@ -93,11 +94,11 @@ func (in instrumentedDockerInterface) StopContainer(id string, timeout uint) err
return err
}
func (in instrumentedDockerInterface) RemoveContainer(opts docker.RemoveContainerOptions) error {
func (in instrumentedDockerInterface) RemoveContainer(id string, opts dockertypes.ContainerRemoveOptions) error {
const operation = "remove_container"
defer recordOperation(operation, time.Now())
err := in.client.RemoveContainer(opts)
err := in.client.RemoveContainer(id, opts)
recordError(operation, err)
return err
}

82
pkg/kubelet/dockertools/kube_docker_client.go
View File

@ -20,14 +20,15 @@ import (
"bytes"
"encoding/base64"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"strconv"
"time"
"github.com/docker/docker/pkg/stdcopy"
dockerapi "github.com/docker/engine-api/client"
dockertypes "github.com/docker/engine-api/types"
dockercontainer "github.com/docker/engine-api/types/container"
dockerfilters "github.com/docker/engine-api/types/filters"
docker "github.com/fsouza/go-dockerclient"
"golang.org/x/net/context"
@ -100,77 +101,49 @@ func convertEnv(src interface{}) (*docker.Env, error) {
return env, nil
}
func (k *kubeDockerClient) ListContainers(options docker.ListContainersOptions) ([]docker.APIContainers, error) {
containers, err := k.client.ContainerList(getDefaultContext(), dockertypes.ContainerListOptions{
Size: options.Size,
All: options.All,
Limit: options.Limit,
Since: options.Since,
Before: options.Before,
Filter: convertFilters(options.Filters),
})
func (k *kubeDockerClient) ListContainers(options dockertypes.ContainerListOptions) ([]dockertypes.Container, error) {
containers, err := k.client.ContainerList(getDefaultContext(), options)
if err != nil {
return nil, err
}
apiContainers := []docker.APIContainers{}
if err := convertType(&containers, &apiContainers); err != nil {
return nil, err
apiContainers := []dockertypes.Container{}
for _, c := range containers {
apiContainers = append(apiContainers, dockertypes.Container(c))
}
return apiContainers, nil
}
func (d *kubeDockerClient) InspectContainer(id string) (*docker.Container, error) {
func (d *kubeDockerClient) InspectContainer(id string) (*dockertypes.ContainerJSON, error) {
containerJSON, err := d.client.ContainerInspect(getDefaultContext(), id)
if err != nil {
// TODO(random-liu): Use IsErrContainerNotFound instead of NoSuchContainer error
if dockerapi.IsErrContainerNotFound(err) {
err = &docker.NoSuchContainer{ID: id, Err: err}
return nil, containerNotFoundError{ID: id}
}
return nil, err
}
container := &docker.Container{}
if err := convertType(&containerJSON, container); err != nil {
return nil, err
}
return container, nil
return &containerJSON, nil
}
func (d *kubeDockerClient) CreateContainer(opts docker.CreateContainerOptions) (*docker.Container, error) {
config := &dockercontainer.Config{}
if err := convertType(opts.Config, config); err != nil {
return nil, err
}
hostConfig := &dockercontainer.HostConfig{}
if err := convertType(opts.HostConfig, hostConfig); err != nil {
return nil, err
}
resp, err := d.client.ContainerCreate(getDefaultContext(), config, hostConfig, nil, opts.Name)
func (d *kubeDockerClient) CreateContainer(opts dockertypes.ContainerCreateConfig) (*dockertypes.ContainerCreateResponse, error) {
createResp, err := d.client.ContainerCreate(getDefaultContext(), opts.Config, opts.HostConfig, opts.NetworkingConfig, opts.Name)
if err != nil {
return nil, err
}
container := &docker.Container{}
if err := convertType(&resp, container); err != nil {
return nil, err
}
return container, nil
return &createResp, nil
}
// TODO(random-liu): The HostConfig at container start is deprecated, will remove this in the following refactoring.
func (d *kubeDockerClient) StartContainer(id string, _ *docker.HostConfig) error {
func (d *kubeDockerClient) StartContainer(id string) error {
return d.client.ContainerStart(getDefaultContext(), id)
}
// Stopping an already stopped container will not cause an error in engine-api.
func (d *kubeDockerClient) StopContainer(id string, timeout uint) error {
return d.client.ContainerStop(getDefaultContext(), id, int(timeout))
func (d *kubeDockerClient) StopContainer(id string, timeout int) error {
return d.client.ContainerStop(getDefaultContext(), id, timeout)
}
func (d *kubeDockerClient) RemoveContainer(opts docker.RemoveContainerOptions) error {
return d.client.ContainerRemove(getDefaultContext(), dockertypes.ContainerRemoveOptions{
ContainerID: opts.ID,
RemoveVolumes: opts.RemoveVolumes,
Force: opts.Force,
})
func (d *kubeDockerClient) RemoveContainer(id string, opts dockertypes.ContainerRemoveOptions) error {
opts.ContainerID = id
return d.client.ContainerRemove(getDefaultContext(), opts)
}
func (d *kubeDockerClient) InspectImage(image string) (*docker.Image, error) {
@ -387,3 +360,20 @@ func (d *kubeDockerClient) holdHijackedConnection(tty bool, inputStream io.Reade
}
return nil
}
// parseDockerTimestamp parses the timestamp returned by DockerInterface from string to time.Time
func parseDockerTimestamp(s string) (time.Time, error) {
// Timestamp returned by Docker is in time.RFC3339Nano format.
return time.Parse(time.RFC3339Nano, s)
}
// containerNotFoundError is the error returned by InspectContainer when container not found. We
// add this error type for testability. We don't use the original error returned by engine-api
// because dockertypes.containerNotFoundError is private, we can't create and inject it in our test.
type containerNotFoundError struct {
ID string
}
func (e containerNotFoundError) Error() string {
return fmt.Sprintf("Error: No such container: %s", e.ID)
}

131
pkg/kubelet/dockertools/manager.go
View File

@ -32,6 +32,10 @@ import (
"time"
"github.com/coreos/go-semver/semver"
dockertypes "github.com/docker/engine-api/types"
dockercontainer "github.com/docker/engine-api/types/container"
dockerstrslice "github.com/docker/engine-api/types/strslice"
dockernat "github.com/docker/go-connections/nat"
docker "github.com/fsouza/go-dockerclient"
"github.com/golang/glog"
cadvisorapi "github.com/google/cadvisor/info/v1"
@ -313,7 +317,7 @@ var (
// determineContainerIP determines the IP address of the given container. It is expected
// that the container passed is the infrastructure container of a pod and the responsibility
// of the caller to ensure that the correct container is passed.
func (dm *DockerManager) determineContainerIP(podNamespace, podName string, container *docker.Container) string {
func (dm *DockerManager) determineContainerIP(podNamespace, podName string, container *dockertypes.ContainerJSON) string {
result := ""
if container.NetworkSettings != nil {
@ -351,6 +355,20 @@ func (dm *DockerManager) inspectContainer(id string, podName, podNamespace strin
var containerInfo *labelledContainerInfo
containerInfo = getContainerInfoFromLabel(iResult.Config.Labels)
parseTimestampError := func(label, s string) {
glog.Errorf("Failed to parse %q timestamp %q for container %q of pod %q", label, s, id, kubecontainer.BuildPodFullName(podName, podNamespace))
}
var createdAt, startedAt, finishedAt time.Time
if createdAt, err = parseDockerTimestamp(iResult.Created); err != nil {
parseTimestampError("Created", iResult.Created)
}
if startedAt, err = parseDockerTimestamp(iResult.State.StartedAt); err != nil {
parseTimestampError("StartedAt", iResult.State.StartedAt)
}
if finishedAt, err = parseDockerTimestamp(iResult.State.FinishedAt); err != nil {
parseTimestampError("FinishedAt", iResult.State.FinishedAt)
}
status := kubecontainer.ContainerStatus{
Name: containerName,
RestartCount: containerInfo.RestartCount,
@ -358,13 +376,13 @@ func (dm *DockerManager) inspectContainer(id string, podName, podNamespace strin
ImageID: DockerPrefix + iResult.Image,
ID: kubecontainer.DockerID(id).ContainerID(),
ExitCode: iResult.State.ExitCode,
CreatedAt: iResult.Created,
CreatedAt: createdAt,
Hash: hash,
}
if iResult.State.Running {
// Container that are running, restarting and paused
status.State = kubecontainer.ContainerStateRunning
status.StartedAt = iResult.State.StartedAt
status.StartedAt = startedAt
if containerName == PodInfraContainerName {
ip = dm.determineContainerIP(podNamespace, podName, iResult)
}
@ -372,13 +390,11 @@ func (dm *DockerManager) inspectContainer(id string, podName, podNamespace strin
}
// Find containers that have exited or failed to start.
if !iResult.State.FinishedAt.IsZero() || iResult.State.ExitCode != 0 {
if !finishedAt.IsZero() || iResult.State.ExitCode != 0 {
// Containers that are exited, dead or created (docker failed to start container)
// When a container fails to start State.ExitCode is non-zero, FinishedAt and StartedAt are both zero
reason := ""
message := iResult.State.Error
finishedAt := iResult.State.FinishedAt
startedAt := iResult.State.StartedAt
// Note: An application might handle OOMKilled gracefully.
// In that case, the container is oom killed, but the exit
@ -387,14 +403,14 @@ func (dm *DockerManager) inspectContainer(id string, podName, podNamespace strin
reason = "OOMKilled"
} else if iResult.State.ExitCode == 0 {
reason = "Completed"
} else if !iResult.State.FinishedAt.IsZero() {
} else if !finishedAt.IsZero() {
reason = "Error"
} else {
// finishedAt is zero and ExitCode is nonZero occurs when docker fails to start the container
reason = ErrContainerCannotRun.Error()
// Adjust time to the time docker attempted to run the container, otherwise startedAt and finishedAt will be set to epoch, which is misleading
finishedAt = iResult.Created
startedAt = iResult.Created
finishedAt = createdAt
startedAt = createdAt
}
terminationMessagePath := containerInfo.TerminationMessagePath
@ -464,9 +480,9 @@ func makeMountBindings(mounts []kubecontainer.Mount, podHasSELinuxLabel bool) (r
return
}
func makePortsAndBindings(portMappings []kubecontainer.PortMapping) (map[docker.Port]struct{}, map[docker.Port][]docker.PortBinding) {
exposedPorts := map[docker.Port]struct{}{}
portBindings := map[docker.Port][]docker.PortBinding{}
func makePortsAndBindings(portMappings []kubecontainer.PortMapping) (map[dockernat.Port]struct{}, map[dockernat.Port][]dockernat.PortBinding) {
exposedPorts := map[dockernat.Port]struct{}{}
portBindings := map[dockernat.Port][]dockernat.PortBinding{}
for _, port := range portMappings {
exteriorPort := port.HostPort
if exteriorPort == 0 {
@ -487,10 +503,10 @@ func makePortsAndBindings(portMappings []kubecontainer.PortMapping) (map[docker.
protocol = "/tcp"
}
dockerPort := docker.Port(strconv.Itoa(interiorPort) + protocol)
dockerPort := dockernat.Port(strconv.Itoa(interiorPort) + protocol)
exposedPorts[dockerPort] = struct{}{}
hostBinding := docker.PortBinding{
hostBinding := dockernat.PortBinding{
HostPort: strconv.Itoa(exteriorPort),
HostIP: port.HostIP,
}
@ -501,7 +517,7 @@ func makePortsAndBindings(portMappings []kubecontainer.PortMapping) (map[docker.
portBindings[dockerPort] = append(existedBindings, hostBinding)
} else {
// Otherwise, it's fresh new port binding
portBindings[dockerPort] = []docker.PortBinding{
portBindings[dockerPort] = []dockernat.PortBinding{
hostBinding,
}
}
@ -586,17 +602,18 @@ func (dm *DockerManager) runContainer(
}
}
hc := &docker.HostConfig{
hc := &dockercontainer.HostConfig{
Binds: binds,
NetworkMode: netMode,
IpcMode: ipcMode,
UTSMode: utsMode,
PidMode: pidMode,
NetworkMode: dockercontainer.NetworkMode(netMode),
IpcMode: dockercontainer.IpcMode(ipcMode),
UTSMode: dockercontainer.UTSMode(utsMode),
PidMode: dockercontainer.PidMode(pidMode),
ReadonlyRootfs: readOnlyRootFilesystem(container),
// Memory and CPU are set here for newer versions of Docker (1.6+).
Memory: memoryLimit,
MemorySwap: -1,
CPUShares: cpuShares,
Resources: dockercontainer.Resources{
Memory: memoryLimit,
MemorySwap: -1,
CPUShares: cpuShares,
},
SecurityOpt: securityOpts,
}
@ -620,15 +637,11 @@ func (dm *DockerManager) runContainer(
hc.CgroupParent = opts.CgroupParent
}
dockerOpts := docker.CreateContainerOptions{
dockerOpts := dockertypes.ContainerCreateConfig{
Name: containerName,
Config: &docker.Config{
Env: makeEnvList(opts.Envs),
Image: container.Image,
// Memory and CPU are set here for older versions of Docker (pre-1.6).
Memory: memoryLimit,
MemorySwap: -1,
CPUShares: cpuShares,
Config: &dockercontainer.Config{
Env: makeEnvList(opts.Envs),
Image: container.Image,
WorkingDir: container.WorkingDir,
Labels: labels,
// Interactive containers:
@ -644,36 +657,39 @@ func (dm *DockerManager) runContainer(
setInfraContainerNetworkConfig(pod, netMode, opts, dockerOpts)
}
setEntrypointAndCommand(container, opts, &dockerOpts)
setEntrypointAndCommand(container, opts, dockerOpts)
glog.V(3).Infof("Container %v/%v/%v: setting entrypoint \"%v\" and command \"%v\"", pod.Namespace, pod.Name, container.Name, dockerOpts.Config.Entrypoint, dockerOpts.Config.Cmd)
securityContextProvider := securitycontext.NewSimpleSecurityContextProvider()
securityContextProvider.ModifyContainerConfig(pod, container, dockerOpts.Config)
securityContextProvider.ModifyHostConfig(pod, container, dockerOpts.HostConfig)
dockerContainer, err := dm.client.CreateContainer(dockerOpts)
createResp, err := dm.client.CreateContainer(dockerOpts)
if err != nil {
dm.recorder.Eventf(ref, api.EventTypeWarning, kubecontainer.FailedToCreateContainer, "Failed to create docker container with error: %v", err)
return kubecontainer.ContainerID{}, err
}
dm.recorder.Eventf(ref, api.EventTypeNormal, kubecontainer.CreatedContainer, "Created container with docker id %v", utilstrings.ShortenString(dockerContainer.ID, 12))
if len(createResp.Warnings) != 0 {
glog.V(2).Infof("Container %q of pod %q created with warnings: %v", container.Name, format.Pod(pod), createResp.Warnings)
}
dm.recorder.Eventf(ref, api.EventTypeNormal, kubecontainer.CreatedContainer, "Created container with docker id %v", utilstrings.ShortenString(createResp.ID, 12))
if err = dm.client.StartContainer(dockerContainer.ID, nil); err != nil {
if err = dm.client.StartContainer(createResp.ID); err != nil {
dm.recorder.Eventf(ref, api.EventTypeWarning, kubecontainer.FailedToStartContainer,
"Failed to start container with docker id %v with error: %v", utilstrings.ShortenString(dockerContainer.ID, 12), err)
"Failed to start container with docker id %v with error: %v", utilstrings.ShortenString(createResp.ID, 12), err)
return kubecontainer.ContainerID{}, err
}
dm.recorder.Eventf(ref, api.EventTypeNormal, kubecontainer.StartedContainer, "Started container with docker id %v", utilstrings.ShortenString(dockerContainer.ID, 12))
dm.recorder.Eventf(ref, api.EventTypeNormal, kubecontainer.StartedContainer, "Started container with docker id %v", utilstrings.ShortenString(createResp.ID, 12))
return kubecontainer.DockerID(dockerContainer.ID).ContainerID(), nil
return kubecontainer.DockerID(createResp.ID).ContainerID(), nil
}
// setInfraContainerNetworkConfig sets the network configuration for the infra-container. We only set network configuration for infra-container, all
// the user containers will share the same network namespace with infra-container.
func setInfraContainerNetworkConfig(pod *api.Pod, netMode string, opts *kubecontainer.RunContainerOptions, dockerOpts docker.CreateContainerOptions) {
func setInfraContainerNetworkConfig(pod *api.Pod, netMode string, opts *kubecontainer.RunContainerOptions, dockerOpts dockertypes.ContainerCreateConfig) {
exposedPorts, portBindings := makePortsAndBindings(opts.PortMappings)
dockerOpts.Config.ExposedPorts = exposedPorts
dockerOpts.HostConfig.PortBindings = portBindings
dockerOpts.HostConfig.PortBindings = dockernat.PortMap(portBindings)
if netMode != namespaceModeHost {
dockerOpts.Config.Hostname = opts.Hostname
@ -686,16 +702,16 @@ func setInfraContainerNetworkConfig(pod *api.Pod, netMode string, opts *kubecont
}
}
func setEntrypointAndCommand(container *api.Container, opts *kubecontainer.RunContainerOptions, dockerOpts *docker.CreateContainerOptions) {
func setEntrypointAndCommand(container *api.Container, opts *kubecontainer.RunContainerOptions, dockerOpts dockertypes.ContainerCreateConfig) {
command, args := kubecontainer.ExpandContainerCommandAndArgs(container, opts.Envs)
dockerOpts.Config.Entrypoint = command
dockerOpts.Config.Cmd = args
dockerOpts.Config.Entrypoint = dockerstrslice.StrSlice(command)
dockerOpts.Config.Cmd = dockerstrslice.StrSlice(args)
}
// A helper function to get the KubeletContainerName and hash from a docker
// container.
func getDockerContainerNameInfo(c *docker.APIContainers) (*KubeletContainerName, uint64, error) {
func getDockerContainerNameInfo(c *dockertypes.Container) (*KubeletContainerName, uint64, error) {
if len(c.Names) == 0 {
return nil, 0, fmt.Errorf("cannot parse empty docker container name: %#v", c.Names)
}
@ -707,7 +723,7 @@ func getDockerContainerNameInfo(c *docker.APIContainers) (*KubeletContainerName,
}
// Get pod UID, name, and namespace by examining the container names.
func getPodInfoFromContainer(c *docker.APIContainers) (types.UID, string, string, error) {
func getPodInfoFromContainer(c *dockertypes.Container) (types.UID, string, string, error) {
dockerName, _, err := getDockerContainerNameInfo(c)
if err != nil {
return types.UID(""), "", "", err
@ -779,8 +795,8 @@ func (dm *DockerManager) GetPods(all bool) ([]*kubecontainer.Pod, error) {
}
// Convert map to list.
for _, c := range pods {
result = append(result, c)
for _, p := range pods {
result = append(result, p)
}
return result, nil
}
@ -859,9 +875,9 @@ func readOnlyRootFilesystem(container *api.Container) bool {
}
// container must not be nil
func getDockerNetworkMode(container *docker.Container) string {
func getDockerNetworkMode(container *dockertypes.ContainerJSON) string {
if container.HostConfig != nil {
return container.HostConfig.NetworkMode
return string(container.HostConfig.NetworkMode)
}
return ""
}
@ -1376,7 +1392,7 @@ func (dm *DockerManager) killContainer(containerID kubecontainer.ContainerID, co
if gracePeriod < minimumGracePeriodInSeconds {
gracePeriod = minimumGracePeriodInSeconds
}
err := dm.client.StopContainer(ID, uint(gracePeriod))
err := dm.client.StopContainer(ID, int(gracePeriod))
if err == nil {
glog.V(2).Infof("Container %q exited after %s", name, unversioned.Now().Sub(start.Time))
} else {
@ -1399,7 +1415,7 @@ func (dm *DockerManager) killContainer(containerID kubecontainer.ContainerID, co
var errNoPodOnContainer = fmt.Errorf("no pod information labels on Docker container")
// containerAndPodFromLabels tries to load the appropriate container info off of a Docker container's labels
func containerAndPodFromLabels(inspect *docker.Container) (pod *api.Pod, container *api.Container, err error) {
func containerAndPodFromLabels(inspect *dockertypes.ContainerJSON) (pod *api.Pod, container *api.Container, err error) {
if inspect == nil && inspect.Config == nil && inspect.Config.Labels == nil {
return nil, nil, errNoPodOnContainer
}
@ -1438,7 +1454,7 @@ func containerAndPodFromLabels(inspect *docker.Container) (pod *api.Pod, contain
return
}
func (dm *DockerManager) applyOOMScoreAdj(container *api.Container, containerInfo *docker.Container) error {
func (dm *DockerManager) applyOOMScoreAdj(container *api.Container, containerInfo *dockertypes.ContainerJSON) error {
cgroupName, err := dm.procFs.GetFullContainerName(containerInfo.State.Pid)
if err != nil {
if err == os.ErrNotExist {
@ -1544,7 +1560,7 @@ func (dm *DockerManager) runContainerInPod(pod *api.Pod, container *api.Containe
return id, err
}
func (dm *DockerManager) applyOOMScoreAdjIfNeeded(container *api.Container, containerInfo *docker.Container) error {
func (dm *DockerManager) applyOOMScoreAdjIfNeeded(container *api.Container, containerInfo *dockertypes.ContainerJSON) error {
// Compare current API version with expected api version.
result, err := dm.checkDockerAPIVersion(dockerv110APIVersion)
if err != nil {
@ -1923,8 +1939,7 @@ func (dm *DockerManager) SyncPod(pod *api.Pod, _ api.PodStatus, podStatus *kubec
}
// Setup the host interface unless the pod is on the host's network (FIXME: move to networkPlugin when ready)
var podInfraContainer *docker.Container
podInfraContainer, err = dm.client.InspectContainer(string(podInfraContainerID))
podInfraContainer, err := dm.client.InspectContainer(string(podInfraContainerID))
if err != nil {
glog.Errorf("Failed to inspect pod infra container: %v; Skipping pod %q", err, format.Pod(pod))
result.Fail(err)
@ -2145,7 +2160,7 @@ func (dm *DockerManager) GetPodStatus(uid types.UID, name, namespace string) (*k
// However, there may be some old containers without these labels, so at least now we can't do that.
// TODO(random-liu): Do only one list and pass in the list result in the future
// TODO(random-liu): Add filter when we are sure that all the containers have the labels
containers, err := dm.client.ListContainers(docker.ListContainersOptions{All: true})
containers, err := dm.client.ListContainers(dockertypes.ContainerListOptions{All: true})
if err != nil {
return podStatus, err
}
@ -2166,7 +2181,7 @@ func (dm *DockerManager) GetPodStatus(uid types.UID, name, namespace string) (*k
}
result, ip, err := dm.inspectContainer(c.ID, name, namespace)
if err != nil {
if _, ok := err.(*docker.NoSuchContainer); ok {
if _, ok := err.(containerNotFoundError); ok {
// https://github.com/kubernetes/kubernetes/issues/22541
// Sometimes when docker's state is corrupt, a container can be listed
// but couldn't be inspected. We fake a status for this container so

236
pkg/kubelet/dockertools/manager_test.go
View File

@ -29,6 +29,9 @@ import (
"testing"
"time"
dockertypes "github.com/docker/engine-api/types"
dockercontainer "github.com/docker/engine-api/types/container"
dockerstrslice "github.com/docker/engine-api/types/strslice"
docker "github.com/fsouza/go-dockerclient"
cadvisorapi "github.com/google/cadvisor/info/v1"
"github.com/stretchr/testify/assert"
@ -162,13 +165,13 @@ func TestSetEntrypointAndCommand(t *testing.T) {
name string
container *api.Container
envs []kubecontainer.EnvVar
expected *docker.CreateContainerOptions
expected *dockertypes.ContainerCreateConfig
}{
{
name: "none",
container: &api.Container{},
expected: &docker.CreateContainerOptions{
Config: &docker.Config{},
expected: &dockertypes.ContainerCreateConfig{
Config: &dockercontainer.Config{},
},
},
{
@ -176,9 +179,9 @@ func TestSetEntrypointAndCommand(t *testing.T) {
container: &api.Container{
Command: []string{"foo", "bar"},
},
expected: &docker.CreateContainerOptions{
Config: &docker.Config{
Entrypoint: []string{"foo", "bar"},
expected: &dockertypes.ContainerCreateConfig{
Config: &dockercontainer.Config{
Entrypoint: dockerstrslice.StrSlice([]string{"foo", "bar"}),
},
},
},
@ -197,9 +200,9 @@ func TestSetEntrypointAndCommand(t *testing.T) {
Value: "boo",
},
},
expected: &docker.CreateContainerOptions{
Config: &docker.Config{
Entrypoint: []string{"foo", "zoo", "boo"},
expected: &dockertypes.ContainerCreateConfig{
Config: &dockercontainer.Config{
Entrypoint: dockerstrslice.StrSlice([]string{"foo", "zoo", "boo"}),
},
},
},
@ -208,8 +211,8 @@ func TestSetEntrypointAndCommand(t *testing.T) {
container: &api.Container{
Args: []string{"foo", "bar"},
},
expected: &docker.CreateContainerOptions{
Config: &docker.Config{
expected: &dockertypes.ContainerCreateConfig{
Config: &dockercontainer.Config{
Cmd: []string{"foo", "bar"},
},
},
@ -229,9 +232,9 @@ func TestSetEntrypointAndCommand(t *testing.T) {
Value: "trap",
},
},
expected: &docker.CreateContainerOptions{
Config: &docker.Config{
Cmd: []string{"zap", "hap", "trap"},
expected: &dockertypes.ContainerCreateConfig{
Config: &dockercontainer.Config{
Cmd: dockerstrslice.StrSlice([]string{"zap", "hap", "trap"}),
},
},
},
@ -241,10 +244,10 @@ func TestSetEntrypointAndCommand(t *testing.T) {
Command: []string{"foo"},
Args: []string{"bar", "baz"},
},
expected: &docker.CreateContainerOptions{
Config: &docker.Config{
Entrypoint: []string{"foo"},
Cmd: []string{"bar", "baz"},
expected: &dockertypes.ContainerCreateConfig{
Config: &dockercontainer.Config{
Entrypoint: dockerstrslice.StrSlice([]string{"foo"}),
Cmd: dockerstrslice.StrSlice([]string{"bar", "baz"}),
},
},
},
@ -268,10 +271,10 @@ func TestSetEntrypointAndCommand(t *testing.T) {
Value: "roo",
},
},
expected: &docker.CreateContainerOptions{
Config: &docker.Config{
Entrypoint: []string{"boo--zoo", "foo", "roo"},
Cmd: []string{"foo", "zoo", "boo"},
expected: &dockertypes.ContainerCreateConfig{
Config: &dockercontainer.Config{
Entrypoint: dockerstrslice.StrSlice([]string{"boo--zoo", "foo", "roo"}),
Cmd: dockerstrslice.StrSlice([]string{"foo", "zoo", "boo"}),
},
},
},
@ -282,8 +285,8 @@ func TestSetEntrypointAndCommand(t *testing.T) {
Envs: tc.envs,
}
actualOpts := &docker.CreateContainerOptions{
Config: &docker.Config{},
actualOpts := dockertypes.ContainerCreateConfig{
Config: &dockercontainer.Config{},
}
setEntrypointAndCommand(tc.container, opts, actualOpts)
@ -319,7 +322,7 @@ func verifyPods(a, b []*kubecontainer.Pod) bool {
func TestGetPods(t *testing.T) {
manager, fakeDocker := newTestDockerManager()
dockerContainers := []*docker.Container{
dockerContainers := []*FakeContainer{
{
ID: "1111",
Name: "/k8s_foo_qux_new_1234_42",
@ -338,7 +341,7 @@ func TestGetPods(t *testing.T) {
// because the conversion is tested separately in convert_test.go
containers := make([]*kubecontainer.Container, len(dockerContainers))
for i := range containers {
c, err := toRuntimeContainer(&docker.APIContainers{
c, err := toRuntimeContainer(&dockertypes.Container{
ID: dockerContainers[i].ID,
Names: []string{dockerContainers[i].Name},
})
@ -394,40 +397,6 @@ func TestListImages(t *testing.T) {
}
}
func apiContainerToContainer(c docker.APIContainers) kubecontainer.Container {
dockerName, hash, err := ParseDockerName(c.Names[0])
if err != nil {
return kubecontainer.Container{}
}
return kubecontainer.Container{
ID: kubecontainer.ContainerID{Type: "docker", ID: c.ID},
Name: dockerName.ContainerName,
Hash: hash,
}
}
func dockerContainersToPod(containers []*docker.APIContainers) kubecontainer.Pod {
var pod kubecontainer.Pod
for _, c := range containers {
dockerName, hash, err := ParseDockerName(c.Names[0])
if err != nil {
continue
}
pod.Containers = append(pod.Containers, &kubecontainer.Container{
ID: kubecontainer.ContainerID{Type: "docker", ID: c.ID},
Name: dockerName.ContainerName,
Hash: hash,
Image: c.Image,
})
// TODO(yifan): Only one evaluation is enough.
pod.ID = dockerName.PodUID
name, namespace, _ := kubecontainer.ParsePodFullName(dockerName.PodFullName)
pod.Name = name
pod.Namespace = namespace
}
return pod
}
func TestKillContainerInPod(t *testing.T) {
manager, fakeDocker := newTestDockerManager()
@ -439,7 +408,7 @@ func TestKillContainerInPod(t *testing.T) {
},
Spec: api.PodSpec{Containers: []api.Container{{Name: "foo"}, {Name: "bar"}}},
}
containers := []*docker.Container{
containers := []*FakeContainer{
{
ID: "1111",
Name: "/k8s_foo_qux_new_1234_42",
@ -498,11 +467,11 @@ func TestKillContainerInPodWithPreStop(t *testing.T) {
if err != nil {
t.Errorf("unexpected error: %v", err)
}
containers := []*docker.Container{
containers := []*FakeContainer{
{
ID: "1111",
Name: "/k8s_foo_qux_new_1234_42",
Config: &docker.Config{
Config: &dockercontainer.Config{
Labels: map[string]string{
kubernetesPodLabel: string(podString),
kubernetesContainerNameLabel: "foo",
@ -541,7 +510,7 @@ func TestKillContainerInPodWithError(t *testing.T) {
},
Spec: api.PodSpec{Containers: []api.Container{{Name: "foo"}, {Name: "bar"}}},
}
containers := []*docker.Container{
containers := []*FakeContainer{
{
ID: "1111",
Name: "/k8s_foo_qux_new_1234_42",
@ -634,13 +603,13 @@ func TestSyncPodCreateNetAndContainer(t *testing.T) {
fakeDocker.Lock()
found := false
for _, c := range fakeDocker.ContainerList {
for _, c := range fakeDocker.RunningContainerList {
if c.Image == "pod_infra_image" && strings.HasPrefix(c.Names[0], "/k8s_POD") {
found = true
}
}
if !found {
t.Errorf("Custom pod infra container not found: %v", fakeDocker.ContainerList)
t.Errorf("Custom pod infra container not found: %v", fakeDocker.RunningContainerList)
}
if len(fakeDocker.Created) != 2 ||
@ -708,7 +677,7 @@ func TestSyncPodWithPodInfraCreatesContainer(t *testing.T) {
},
}
fakeDocker.SetFakeRunningContainers([]*docker.Container{{
fakeDocker.SetFakeRunningContainers([]*FakeContainer{{
ID: "9876",
// Pod infra container.
Name: "/k8s_POD." + strconv.FormatUint(generatePodInfraContainerHash(pod), 16) + "_foo_new_12345678_0",
@ -742,7 +711,7 @@ func TestSyncPodDeletesWithNoPodInfraContainer(t *testing.T) {
},
},
}
fakeDocker.SetFakeRunningContainers([]*docker.Container{{
fakeDocker.SetFakeRunningContainers([]*FakeContainer{{
ID: "1234",
Name: "/k8s_bar1_foo1_new_12345678_0",
}})
@ -785,7 +754,7 @@ func TestSyncPodDeletesDuplicate(t *testing.T) {
},
}
fakeDocker.SetFakeRunningContainers([]*docker.Container{
fakeDocker.SetFakeRunningContainers([]*FakeContainer{
{
ID: "1234",
Name: "/k8s_foo_bar_new_12345678_1111",
@ -826,7 +795,7 @@ func TestSyncPodBadHash(t *testing.T) {
},
}
fakeDocker.SetFakeRunningContainers([]*docker.Container{
fakeDocker.SetFakeRunningContainers([]*FakeContainer{
{
ID: "1234",
Name: "/k8s_bar.1234_foo_new_12345678_42",
@ -864,7 +833,7 @@ func TestSyncPodsUnhealthy(t *testing.T) {
},
}
fakeDocker.SetFakeRunningContainers([]*docker.Container{
fakeDocker.SetFakeRunningContainers([]*FakeContainer{
{
ID: unhealthyContainerID,
Name: "/k8s_unhealthy_foo_new_12345678_42",
@ -904,7 +873,7 @@ func TestSyncPodsDoesNothing(t *testing.T) {
},
},
}
fakeDocker.SetFakeRunningContainers([]*docker.Container{
fakeDocker.SetFakeRunningContainers([]*FakeContainer{
{
ID: "1234",
Name: "/k8s_bar." + strconv.FormatUint(kubecontainer.HashContainer(&container), 16) + "_foo_new_12345678_0",
@ -935,35 +904,26 @@ func TestSyncPodWithRestartPolicy(t *testing.T) {
Containers: containers,
},
}
dockerContainers := []*docker.Container{
dockerContainers := []*FakeContainer{
{
ID: "9876",
Name: "/k8s_POD." + strconv.FormatUint(generatePodInfraContainerHash(pod), 16) + "_foo_new_12345678_0",
Config: &docker.Config{},
State: docker.State{
StartedAt: time.Now(),
Running: true,
},
ID: "9876",
Name: "/k8s_POD." + strconv.FormatUint(generatePodInfraContainerHash(pod), 16) + "_foo_new_12345678_0",
StartedAt: time.Now(),
Running: true,
},
{
ID: "1234",
Name: "/k8s_succeeded." + strconv.FormatUint(kubecontainer.HashContainer(&containers[0]), 16) + "_foo_new_12345678_0",
Config: &docker.Config{},
State: docker.State{
ExitCode: 0,
StartedAt: time.Now(),
FinishedAt: time.Now(),
},
ID: "1234",
Name: "/k8s_succeeded." + strconv.FormatUint(kubecontainer.HashContainer(&containers[0]), 16) + "_foo_new_12345678_0",
ExitCode: 0,
StartedAt: time.Now(),
FinishedAt: time.Now(),
},
{
ID: "5678",
Name: "/k8s_failed." + strconv.FormatUint(kubecontainer.HashContainer(&containers[1]), 16) + "_foo_new_12345678_0",
Config: &docker.Config{},
State: docker.State{
ExitCode: 42,
StartedAt: time.Now(),
FinishedAt: time.Now(),
},
ID: "5678",
Name: "/k8s_failed." + strconv.FormatUint(kubecontainer.HashContainer(&containers[1]), 16) + "_foo_new_12345678_0",
ExitCode: 42,
StartedAt: time.Now(),
FinishedAt: time.Now(),
}}
tests := []struct {
@ -1040,31 +1000,25 @@ func TestSyncPodBackoff(t *testing.T) {
}
stableId := "k8s_bad." + strconv.FormatUint(kubecontainer.HashContainer(&containers[1]), 16) + "_podfoo_nsnew_12345678"
dockerContainers := []*docker.Container{
dockerContainers := []*FakeContainer{
{
ID: "9876",
Name: "/k8s_POD." + strconv.FormatUint(generatePodInfraContainerHash(pod), 16) + "_podfoo_nsnew_12345678_0",
State: docker.State{
StartedAt: startTime,
Running: true,
},
ID: "9876",
Name: "/k8s_POD." + strconv.FormatUint(generatePodInfraContainerHash(pod), 16) + "_podfoo_nsnew_12345678_0",
StartedAt: startTime,
Running: true,
},
{
ID: "1234",
Name: "/k8s_good." + strconv.FormatUint(kubecontainer.HashContainer(&containers[0]), 16) + "_podfoo_nsnew_12345678_0",
State: docker.State{
StartedAt: startTime,
Running: true,
},
ID: "1234",
Name: "/k8s_good." + strconv.FormatUint(kubecontainer.HashContainer(&containers[0]), 16) + "_podfoo_nsnew_12345678_0",
StartedAt: startTime,
Running: true,
},
{
ID: "5678",
Name: "/k8s_bad." + strconv.FormatUint(kubecontainer.HashContainer(&containers[1]), 16) + "_podfoo_nsnew_12345678_0",
State: docker.State{
ExitCode: 42,
StartedAt: startTime,
FinishedAt: fakeClock.Now(),
},
ID: "5678",
Name: "/k8s_bad." + strconv.FormatUint(kubecontainer.HashContainer(&containers[1]), 16) + "_podfoo_nsnew_12345678_0",
ExitCode: 42,
StartedAt: startTime,
FinishedAt: fakeClock.Now(),
},
}
@ -1113,7 +1067,7 @@ func TestSyncPodBackoff(t *testing.T) {
if len(fakeDocker.Created) > 0 {
// pretend kill the container
fakeDocker.Created = nil
dockerContainers[2].State.FinishedAt = startTime.Add(time.Duration(c.killDelay) * time.Second)
dockerContainers[2].FinishedAt = startTime.Add(time.Duration(c.killDelay) * time.Second)
}
}
}
@ -1199,7 +1153,7 @@ func TestGetRestartCount(t *testing.T) {
verifyRestartCount(&pod, 3)
// All exited containers have been garbage collected, restart count should be got from old api pod status
fakeDocker.ExitedContainerList = []docker.APIContainers{}
fakeDocker.ExitedContainerList = []dockertypes.Container{}
verifyRestartCount(&pod, 3)
killOneContainer(&pod)
@ -1228,12 +1182,12 @@ func TestGetTerminationMessagePath(t *testing.T) {
runSyncPod(t, dm, fakeDocker, pod, nil, false)
containerList := fakeDocker.ContainerList
containerList := fakeDocker.RunningContainerList
if len(containerList) != 2 {
// One for infra container, one for container "bar"
t.Fatalf("unexpected container list length %d", len(containerList))
}
inspectResult, err := dm.client.InspectContainer(containerList[0].ID)
inspectResult, err := fakeDocker.InspectContainer(containerList[0].ID)
if err != nil {
t.Fatalf("unexpected inspect error: %v", err)
}
@ -1271,7 +1225,7 @@ func TestSyncPodWithPodInfraCreatesContainerCallsHandler(t *testing.T) {
},
},
}
fakeDocker.SetFakeRunningContainers([]*docker.Container{{
fakeDocker.SetFakeRunningContainers([]*FakeContainer{{
ID: "9876",
Name: "/k8s_POD." + strconv.FormatUint(generatePodInfraContainerHash(pod), 16) + "_foo_new_12345678_0",
}})
@ -1321,7 +1275,7 @@ func TestSyncPodEventHandlerFails(t *testing.T) {
},
}
fakeDocker.SetFakeRunningContainers([]*docker.Container{{
fakeDocker.SetFakeRunningContainers([]*FakeContainer{{
ID: "9876",
Name: "/k8s_POD." + strconv.FormatUint(generatePodInfraContainerHash(pod), 16) + "_foo_new_12345678_0",
}})
@ -1727,7 +1681,7 @@ func TestSyncPodWithFailure(t *testing.T) {
puller.HasImages = []string{test.container.Image}
// Pretend that the pod infra container has already been created, so that
// we can run the user containers.
fakeDocker.SetFakeRunningContainers([]*docker.Container{{
fakeDocker.SetFakeRunningContainers([]*FakeContainer{{
ID: "9876",
Name: "/k8s_POD." + strconv.FormatUint(generatePodInfraContainerHash(pod), 16) + "_foo_new_12345678_0",
}})
@ -1911,29 +1865,25 @@ func TestGetPodStatusNoSuchContainer(t *testing.T) {
},
}
fakeDocker.SetFakeContainers([]*docker.Container{
fakeDocker.SetFakeContainers([]*FakeContainer{
{
ID: noSuchContainerID,
Name: "/k8s_nosuchcontainer_foo_new_12345678_42",
State: docker.State{
ExitCode: 0,
StartedAt: time.Now(),
FinishedAt: time.Now(),
Running: false,
},
ID: noSuchContainerID,
Name: "/k8s_nosuchcontainer_foo_new_12345678_42",
ExitCode: 0,
StartedAt: time.Now(),
FinishedAt: time.Now(),
Running: false,
},
{
ID: infraContainerID,
Name: "/k8s_POD." + strconv.FormatUint(generatePodInfraContainerHash(pod), 16) + "_foo_new_12345678_42",
State: docker.State{
ExitCode: 0,
StartedAt: time.Now(),
FinishedAt: time.Now(),
Running: false,
},
}})
fakeDocker.InjectErrors(map[string]error{"inspect": &docker.NoSuchContainer{}})
ID: infraContainerID,
Name: "/k8s_POD." + strconv.FormatUint(generatePodInfraContainerHash(pod), 16) + "_foo_new_12345678_42",
ExitCode: 0,
StartedAt: time.Now(),
FinishedAt: time.Now(),
Running: false,
},
})
fakeDocker.InjectErrors(map[string]error{"inspect_container": containerNotFoundError{}})
runSyncPod(t, dm, fakeDocker, pod, nil, false)
// Verify that we will try to start new contrainers even if the inspections

7
pkg/kubelet/network/cni/cni_test.go
View File

@ -30,7 +30,6 @@ import (
clientset "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
docker "github.com/fsouza/go-dockerclient"
cadvisorapi "github.com/google/cadvisor/info/v1"
"k8s.io/kubernetes/cmd/kubelet/app/options"
@ -132,10 +131,10 @@ func (fnh *fakeNetworkHost) GetKubeClient() clientset.Interface {
func (nh *fakeNetworkHost) GetRuntime() kubecontainer.Runtime {
dm, fakeDockerClient := newTestDockerManager()
fakeDockerClient.SetFakeRunningContainers([]*docker.Container{
fakeDockerClient.SetFakeRunningContainers([]*dockertools.FakeContainer{
{
ID: "test_infra_container",
State: docker.State{Pid: 12345},
ID: "test_infra_container",
Pid: 12345,
},
})
return dm

6
pkg/securitycontext/fake.go
View File

@ -19,7 +19,7 @@ package securitycontext
import (
"k8s.io/kubernetes/pkg/api"
docker "github.com/fsouza/go-dockerclient"
dockercontainer "github.com/docker/engine-api/types/container"
)
// ValidSecurityContextWithContainerDefaults creates a valid security context provider based on
@ -39,7 +39,7 @@ func NewFakeSecurityContextProvider() SecurityContextProvider {
type FakeSecurityContextProvider struct{}
func (p FakeSecurityContextProvider) ModifyContainerConfig(pod *api.Pod, container *api.Container, config *docker.Config) {
func (p FakeSecurityContextProvider) ModifyContainerConfig(pod *api.Pod, container *api.Container, config *dockercontainer.Config) {
}
func (p FakeSecurityContextProvider) ModifyHostConfig(pod *api.Pod, container *api.Container, hostConfig *docker.HostConfig) {
func (p FakeSecurityContextProvider) ModifyHostConfig(pod *api.Pod, container *api.Container, hostConfig *dockercontainer.HostConfig) {
}

6
pkg/securitycontext/provider.go
View File

@ -23,7 +23,7 @@ import (
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/kubelet/leaky"
docker "github.com/fsouza/go-dockerclient"
dockercontainer "github.com/docker/engine-api/types/container"
)
// NewSimpleSecurityContextProvider creates a new SimpleSecurityContextProvider.
@ -37,7 +37,7 @@ type SimpleSecurityContextProvider struct{}
// ModifyContainerConfig is called before the Docker createContainer call.
// The security context provider can make changes to the Config with which
// the container is created.
func (p SimpleSecurityContextProvider) ModifyContainerConfig(pod *api.Pod, container *api.Container, config *docker.Config) {
func (p SimpleSecurityContextProvider) ModifyContainerConfig(pod *api.Pod, container *api.Container, config *dockercontainer.Config) {
effectiveSC := DetermineEffectiveSecurityContext(pod, container)
if effectiveSC == nil {
return
@ -50,7 +50,7 @@ func (p SimpleSecurityContextProvider) ModifyContainerConfig(pod *api.Pod, conta
// ModifyHostConfig is called before the Docker runContainer call.
// The security context provider can make changes to the HostConfig, affecting
// security options, whether the container is privileged, volume binds, etc.
func (p SimpleSecurityContextProvider) ModifyHostConfig(pod *api.Pod, container *api.Container, hostConfig *docker.HostConfig) {
func (p SimpleSecurityContextProvider) ModifyHostConfig(pod *api.Pod, container *api.Container, hostConfig *dockercontainer.HostConfig) {
// Apply pod security context
if container.Name != leaky.PodInfraContainerName && pod.Spec.SecurityContext != nil {
// TODO: We skip application of supplemental groups to the

32
pkg/securitycontext/provider_test.go
View File

@ -22,7 +22,7 @@ import (
"strconv"
"testing"
docker "github.com/fsouza/go-dockerclient"
dockercontainer "github.com/docker/engine-api/types/container"
"k8s.io/kubernetes/pkg/api"
apitesting "k8s.io/kubernetes/pkg/api/testing"
)
@ -35,28 +35,28 @@ func TestModifyContainerConfig(t *testing.T) {
name string
podSc *api.PodSecurityContext
sc *api.SecurityContext
expected *docker.Config
expected *dockercontainer.Config
}{
{
name: "container.SecurityContext.RunAsUser set",
sc: &api.SecurityContext{
RunAsUser: &uid,
},
expected: &docker.Config{
expected: &dockercontainer.Config{
User: strconv.FormatInt(uid, 10),
},
},
{
name: "no RunAsUser value set",
sc: &api.SecurityContext{},
expected: &docker.Config{},
expected: &dockercontainer.Config{},
},
{
name: "pod.Spec.SecurityContext.RunAsUser set",
podSc: &api.PodSecurityContext{
RunAsUser: &uid,
},
expected: &docker.Config{
expected: &dockercontainer.Config{
User: strconv.FormatInt(uid, 10),
},
},
@ -68,7 +68,7 @@ func TestModifyContainerConfig(t *testing.T) {
sc: &api.SecurityContext{
RunAsUser: &overrideUid,
},
expected: &docker.Config{
expected: &dockercontainer.Config{
User: strconv.FormatInt(overrideUid, 10),
},
},
@ -79,7 +79,7 @@ func TestModifyContainerConfig(t *testing.T) {
for _, tc := range cases {
pod := &api.Pod{Spec: api.PodSpec{SecurityContext: tc.podSc}}
dummyContainer.SecurityContext = tc.sc
dockerCfg := &docker.Config{}
dockerCfg := &dockercontainer.Config{}
provider.ModifyContainerConfig(pod, dummyContainer, dockerCfg)
@ -93,16 +93,16 @@ func TestModifyHostConfig(t *testing.T) {
priv := true
setPrivSC := &api.SecurityContext{}
setPrivSC.Privileged = &priv
setPrivHC := &docker.HostConfig{
setPrivHC := &dockercontainer.HostConfig{
Privileged: true,
}
setCapsHC := &docker.HostConfig{
setCapsHC := &dockercontainer.HostConfig{
CapAdd: []string{"addCapA", "addCapB"},
CapDrop: []string{"dropCapA", "dropCapB"},
}
setSELinuxHC := &docker.HostConfig{}
setSELinuxHC := &dockercontainer.HostConfig{}
setSELinuxHC.SecurityOpt = []string{
fmt.Sprintf("%s:%s", dockerLabelUser, "user"),
fmt.Sprintf("%s:%s", dockerLabelRole, "role"),
@ -117,7 +117,7 @@ func TestModifyHostConfig(t *testing.T) {
name string
podSc *api.PodSecurityContext
sc *api.SecurityContext
expected *docker.HostConfig
expected *dockercontainer.HostConfig
}{
{
name: "fully set container.SecurityContext",
@ -164,7 +164,7 @@ func TestModifyHostConfig(t *testing.T) {
for _, tc := range cases {
pod := &api.Pod{Spec: api.PodSpec{SecurityContext: tc.podSc}}
dummyContainer.SecurityContext = tc.sc
dockerCfg := &docker.HostConfig{}
dockerCfg := &dockercontainer.HostConfig{}
provider.ModifyHostConfig(pod, dummyContainer, dockerCfg)
@ -187,7 +187,7 @@ func TestModifyHostConfigPodSecurityContext(t *testing.T) {
testCases := map[string]struct {
securityContext *api.PodSecurityContext
expected *docker.HostConfig
expected *dockercontainer.HostConfig
}{
"nil": {
securityContext: nil,
@ -219,7 +219,7 @@ func TestModifyHostConfigPodSecurityContext(t *testing.T) {
for k, v := range testCases {
dummyPod.Spec.SecurityContext = v.securityContext
dockerCfg := &docker.HostConfig{}
dockerCfg := &dockercontainer.HostConfig{}
provider.ModifyHostConfig(dummyPod, dummyContainer, dockerCfg)
if !reflect.DeepEqual(v.expected, dockerCfg) {
t.Errorf("unexpected modification of host config for %s. Expected: %#v Got: %#v", k, v.expected, dockerCfg)
@ -301,8 +301,8 @@ func inputSELinuxOptions() *api.SELinuxOptions {
}
}
func fullValidHostConfig() *docker.HostConfig {
return &docker.HostConfig{
func fullValidHostConfig() *dockercontainer.HostConfig {
return &dockercontainer.HostConfig{
Privileged: true,
CapAdd: []string{"addCapA", "addCapB"},
CapDrop: []string{"dropCapA", "dropCapB"},

6
pkg/securitycontext/types.go
View File

@ -19,21 +19,21 @@ package securitycontext
import (
"k8s.io/kubernetes/pkg/api"
docker "github.com/fsouza/go-dockerclient"
dockercontainer "github.com/docker/engine-api/types/container"
)
type SecurityContextProvider interface {
// ModifyContainerConfig is called before the Docker createContainer call.
// The security context provider can make changes to the Config with which
// the container is created.
ModifyContainerConfig(pod *api.Pod, container *api.Container, config *docker.Config)
ModifyContainerConfig(pod *api.Pod, container *api.Container, config *dockercontainer.Config)
// ModifyHostConfig is called before the Docker createContainer call.
// The security context provider can make changes to the HostConfig, affecting
// security options, whether the container is privileged, volume binds, etc.
// An error is returned if it's not possible to secure the container as requested
// with a security context.
ModifyHostConfig(pod *api.Pod, container *api.Container, hostConfig *docker.HostConfig)
ModifyHostConfig(pod *api.Pod, container *api.Container, hostConfig *dockercontainer.HostConfig)
}
const (