141 lines
4.6 KiB
Go
141 lines
4.6 KiB
Go
/*
|
|
Copyright 2014 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 libdocker
|
|
|
|
import (
|
|
"fmt"
|
|
"hash/adler32"
|
|
"testing"
|
|
|
|
dockertypes "github.com/docker/docker/api/types"
|
|
"github.com/stretchr/testify/assert"
|
|
"k8s.io/api/core/v1"
|
|
"k8s.io/apimachinery/pkg/types"
|
|
hashutil "k8s.io/kubernetes/pkg/util/hash"
|
|
)
|
|
|
|
func verifyCalls(t *testing.T, fakeDocker *FakeDockerClient, calls []string) {
|
|
assert.New(t).NoError(fakeDocker.AssertCalls(calls))
|
|
}
|
|
|
|
func verifyStringArrayEquals(t *testing.T, actual, expected []string) {
|
|
invalid := len(actual) != len(expected)
|
|
if !invalid {
|
|
for ix, value := range actual {
|
|
if expected[ix] != value {
|
|
invalid = true
|
|
}
|
|
}
|
|
}
|
|
if invalid {
|
|
t.Errorf("Expected: %#v, Actual: %#v", expected, actual)
|
|
}
|
|
}
|
|
|
|
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
|
|
}
|
|
dockerName, hash, err := ParseDockerName(dockerContainer.Names[0])
|
|
if err != nil {
|
|
continue
|
|
}
|
|
if dockerName.PodFullName == podFullName &&
|
|
(uid == "" || dockerName.PodUID == uid) &&
|
|
dockerName.ContainerName == containerName {
|
|
return dockerContainer, true, hash
|
|
}
|
|
}
|
|
return nil, false, 0
|
|
}
|
|
|
|
func TestGetContainerID(t *testing.T) {
|
|
fakeDocker := NewFakeDockerClient()
|
|
fakeDocker.SetFakeRunningContainers([]*FakeContainer{
|
|
{
|
|
ID: "foobar",
|
|
Name: "/k8s_foo_qux_ns_1234_42",
|
|
},
|
|
{
|
|
ID: "barbar",
|
|
Name: "/k8s_bar_qux_ns_2565_42",
|
|
},
|
|
})
|
|
|
|
dockerContainers, err := GetKubeletDockerContainers(fakeDocker, false)
|
|
if err != nil {
|
|
t.Errorf("Expected no error, Got %#v", err)
|
|
}
|
|
if len(dockerContainers) != 2 {
|
|
t.Errorf("Expected %#v, Got %#v", fakeDocker.RunningContainerList, dockerContainers)
|
|
}
|
|
verifyCalls(t, fakeDocker, []string{"list"})
|
|
|
|
dockerContainer, found, _ := findPodContainer(dockerContainers, "qux_ns", "", "foo")
|
|
if dockerContainer == nil || !found {
|
|
t.Errorf("Failed to find container %#v", dockerContainer)
|
|
}
|
|
|
|
fakeDocker.ClearCalls()
|
|
dockerContainer, found, _ = findPodContainer(dockerContainers, "foobar", "", "foo")
|
|
verifyCalls(t, fakeDocker, []string{})
|
|
if dockerContainer != nil || found {
|
|
t.Errorf("Should not have found container %#v", dockerContainer)
|
|
}
|
|
}
|
|
|
|
func verifyPackUnpack(t *testing.T, podNamespace, podUID, podName, containerName string) {
|
|
container := &v1.Container{Name: containerName}
|
|
hasher := adler32.New()
|
|
hashutil.DeepHashObject(hasher, *container)
|
|
computedHash := uint64(hasher.Sum32())
|
|
podFullName := fmt.Sprintf("%s_%s", podName, podNamespace)
|
|
_, name, _ := BuildDockerName(KubeletContainerName{podFullName, types.UID(podUID), container.Name}, container)
|
|
returned, hash, err := ParseDockerName(name)
|
|
if err != nil {
|
|
t.Errorf("Failed to parse Docker container name %q: %v", name, err)
|
|
}
|
|
if podFullName != returned.PodFullName || podUID != string(returned.PodUID) || containerName != returned.ContainerName || computedHash != hash {
|
|
t.Errorf("For (%s, %s, %s, %d), unpacked (%s, %s, %s, %d)", podFullName, podUID, containerName, computedHash, returned.PodFullName, returned.PodUID, returned.ContainerName, hash)
|
|
}
|
|
}
|
|
|
|
func TestContainerNaming(t *testing.T) {
|
|
podUID := "12345678"
|
|
verifyPackUnpack(t, "file", podUID, "name", "container")
|
|
verifyPackUnpack(t, "file", podUID, "name-with-dashes", "container")
|
|
// UID is same as pod name
|
|
verifyPackUnpack(t, "file", podUID, podUID, "container")
|
|
// No Container name
|
|
verifyPackUnpack(t, "other", podUID, "name", "")
|
|
|
|
container := &v1.Container{Name: "container"}
|
|
podName := "foo"
|
|
podNamespace := "test"
|
|
name := fmt.Sprintf("k8s_%s_%s_%s_%s_42", container.Name, podName, podNamespace, podUID)
|
|
podFullName := fmt.Sprintf("%s_%s", podName, podNamespace)
|
|
|
|
returned, hash, err := ParseDockerName(name)
|
|
if err != nil {
|
|
t.Errorf("Failed to parse Docker container name %q: %v", name, err)
|
|
}
|
|
if returned.PodFullName != podFullName || string(returned.PodUID) != podUID || returned.ContainerName != container.Name || hash != 0 {
|
|
t.Errorf("unexpected parse: %s %s %s %d", returned.PodFullName, returned.PodUID, returned.ContainerName, hash)
|
|
}
|
|
}
|