k3s/pkg/registry/etcd_registry_test.go

624 lines
18 KiB
Go

/*
Copyright 2014 Google Inc. All rights reserved.
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 registry
import (
"encoding/json"
"reflect"
"testing"
"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
"github.com/coreos/go-etcd/etcd"
)
func TestEtcdGetPod(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
fakeClient.Set("/registry/hosts/machine/pods/foo", util.MakeJSONString(api.Pod{JSONBase: api.JSONBase{ID: "foo"}}), 0)
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
pod, err := registry.GetPod("foo")
expectNoError(t, err)
if pod.ID != "foo" {
t.Errorf("Unexpected pod: %#v", pod)
}
}
func TestEtcdGetPodNotFound(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
fakeClient.Data["/registry/hosts/machine/pods/foo"] = EtcdResponseWithError{
R: &etcd.Response{
Node: nil,
},
E: &etcd.EtcdError{
ErrorCode: 100,
},
}
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
_, err := registry.GetPod("foo")
if err == nil {
t.Errorf("Unexpected non-error.")
}
}
func TestEtcdCreatePod(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
fakeClient.Data["/registry/hosts/machine/pods/foo"] = EtcdResponseWithError{
R: &etcd.Response{
Node: nil,
},
E: &etcd.EtcdError{ErrorCode: 100},
}
fakeClient.Set("/registry/hosts/machine/kubelet", util.MakeJSONString([]api.ContainerManifest{}), 0)
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
err := registry.CreatePod("machine", api.Pod{
JSONBase: api.JSONBase{
ID: "foo",
},
DesiredState: api.PodState{
Manifest: api.ContainerManifest{
Containers: []api.Container{
{
Name: "foo",
},
},
},
},
})
expectNoError(t, err)
resp, err := fakeClient.Get("/registry/hosts/machine/pods/foo", false, false)
expectNoError(t, err)
var pod api.Pod
err = json.Unmarshal([]byte(resp.Node.Value), &pod)
expectNoError(t, err)
if pod.ID != "foo" {
t.Errorf("Unexpected pod: %#v %s", pod, resp.Node.Value)
}
var manifests []api.ContainerManifest
resp, err = fakeClient.Get("/registry/hosts/machine/kubelet", false, false)
expectNoError(t, err)
err = json.Unmarshal([]byte(resp.Node.Value), &manifests)
if len(manifests) != 1 || manifests[0].Id != "foo" {
t.Errorf("Unexpected manifest list: %#v", manifests)
}
}
func TestEtcdCreatePodAlreadyExisting(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
fakeClient.Data["/registry/hosts/machine/pods/foo"] = EtcdResponseWithError{
R: &etcd.Response{
Node: &etcd.Node{
Value: util.MakeJSONString(api.Pod{JSONBase: api.JSONBase{ID: "foo"}}),
},
},
E: nil,
}
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
err := registry.CreatePod("machine", api.Pod{
JSONBase: api.JSONBase{
ID: "foo",
},
})
if err == nil {
t.Error("Unexpected non-error")
}
}
func TestEtcdCreatePodWithContainersError(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
fakeClient.Data["/registry/hosts/machine/pods/foo"] = EtcdResponseWithError{
R: &etcd.Response{
Node: nil,
},
E: &etcd.EtcdError{ErrorCode: 100},
}
fakeClient.Data["/registry/hosts/machine/kubelet"] = EtcdResponseWithError{
R: &etcd.Response{
Node: nil,
},
E: &etcd.EtcdError{ErrorCode: 200},
}
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
err := registry.CreatePod("machine", api.Pod{
JSONBase: api.JSONBase{
ID: "foo",
},
})
if err == nil {
t.Error("Unexpected non-error")
}
_, err = fakeClient.Get("/registry/hosts/machine/pods/foo", false, false)
if err == nil {
t.Error("Unexpected non-error")
}
if err != nil && err.(*etcd.EtcdError).ErrorCode != 100 {
t.Errorf("Unexpected error: %#v", err)
}
}
func TestEtcdCreatePodWithContainersNotFound(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
fakeClient.Data["/registry/hosts/machine/pods/foo"] = EtcdResponseWithError{
R: &etcd.Response{
Node: nil,
},
E: &etcd.EtcdError{ErrorCode: 100},
}
fakeClient.Data["/registry/hosts/machine/kubelet"] = EtcdResponseWithError{
R: &etcd.Response{
Node: nil,
},
E: &etcd.EtcdError{ErrorCode: 100},
}
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
err := registry.CreatePod("machine", api.Pod{
JSONBase: api.JSONBase{
ID: "foo",
},
DesiredState: api.PodState{
Manifest: api.ContainerManifest{
Id: "foo",
Containers: []api.Container{
{
Name: "foo",
},
},
},
},
})
expectNoError(t, err)
resp, err := fakeClient.Get("/registry/hosts/machine/pods/foo", false, false)
expectNoError(t, err)
var pod api.Pod
err = json.Unmarshal([]byte(resp.Node.Value), &pod)
expectNoError(t, err)
if pod.ID != "foo" {
t.Errorf("Unexpected pod: %#v %s", pod, resp.Node.Value)
}
var manifests []api.ContainerManifest
resp, err = fakeClient.Get("/registry/hosts/machine/kubelet", false, false)
expectNoError(t, err)
err = json.Unmarshal([]byte(resp.Node.Value), &manifests)
if len(manifests) != 1 || manifests[0].Id != "foo" {
t.Errorf("Unexpected manifest list: %#v", manifests)
}
}
func TestEtcdCreatePodWithExistingContainers(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
fakeClient.Data["/registry/hosts/machine/pods/foo"] = EtcdResponseWithError{
R: &etcd.Response{
Node: nil,
},
E: &etcd.EtcdError{ErrorCode: 100},
}
fakeClient.Set("/registry/hosts/machine/kubelet", util.MakeJSONString([]api.ContainerManifest{
{
Id: "bar",
},
}), 0)
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
err := registry.CreatePod("machine", api.Pod{
JSONBase: api.JSONBase{
ID: "foo",
},
DesiredState: api.PodState{
Manifest: api.ContainerManifest{
Id: "foo",
Containers: []api.Container{
{
Name: "foo",
},
},
},
},
})
expectNoError(t, err)
resp, err := fakeClient.Get("/registry/hosts/machine/pods/foo", false, false)
expectNoError(t, err)
var pod api.Pod
err = json.Unmarshal([]byte(resp.Node.Value), &pod)
expectNoError(t, err)
if pod.ID != "foo" {
t.Errorf("Unexpected pod: %#v %s", pod, resp.Node.Value)
}
var manifests []api.ContainerManifest
resp, err = fakeClient.Get("/registry/hosts/machine/kubelet", false, false)
expectNoError(t, err)
err = json.Unmarshal([]byte(resp.Node.Value), &manifests)
if len(manifests) != 2 || manifests[1].Id != "foo" {
t.Errorf("Unexpected manifest list: %#v", manifests)
}
}
func TestEtcdDeletePod(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
key := "/registry/hosts/machine/pods/foo"
fakeClient.Set(key, util.MakeJSONString(api.Pod{JSONBase: api.JSONBase{ID: "foo"}}), 0)
fakeClient.Set("/registry/hosts/machine/kubelet", util.MakeJSONString([]api.ContainerManifest{
{
Id: "foo",
},
}), 0)
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
err := registry.DeletePod("foo")
expectNoError(t, err)
if len(fakeClient.deletedKeys) != 1 {
t.Errorf("Expected 1 delete, found %#v", fakeClient.deletedKeys)
}
if fakeClient.deletedKeys[0] != key {
t.Errorf("Unexpected key: %s, expected %s", fakeClient.deletedKeys[0], key)
}
response, _ := fakeClient.Get("/registry/hosts/machine/kubelet", false, false)
if response.Node.Value != "[]" {
t.Errorf("Unexpected container set: %s, expected empty", response.Node.Value)
}
}
func TestEtcdDeletePodMultipleContainers(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
key := "/registry/hosts/machine/pods/foo"
fakeClient.Set(key, util.MakeJSONString(api.Pod{JSONBase: api.JSONBase{ID: "foo"}}), 0)
fakeClient.Set("/registry/hosts/machine/kubelet", util.MakeJSONString([]api.ContainerManifest{
{Id: "foo"},
{Id: "bar"},
}), 0)
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
err := registry.DeletePod("foo")
expectNoError(t, err)
if len(fakeClient.deletedKeys) != 1 {
t.Errorf("Expected 1 delete, found %#v", fakeClient.deletedKeys)
}
if fakeClient.deletedKeys[0] != key {
t.Errorf("Unexpected key: %s, expected %s", fakeClient.deletedKeys[0], key)
}
response, _ := fakeClient.Get("/registry/hosts/machine/kubelet", false, false)
var manifests []api.ContainerManifest
json.Unmarshal([]byte(response.Node.Value), &manifests)
if len(manifests) != 1 {
t.Errorf("Unexpected manifest set: %#v, expected empty", manifests)
}
if manifests[0].Id != "bar" {
t.Errorf("Deleted wrong manifest: %#v", manifests)
}
}
func TestEtcdEmptyListPods(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
key := "/registry/hosts/machine/pods"
fakeClient.Data[key] = EtcdResponseWithError{
R: &etcd.Response{
Node: &etcd.Node{
Nodes: []*etcd.Node{},
},
},
E: nil,
}
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
pods, err := registry.ListPods(nil)
expectNoError(t, err)
if len(pods) != 0 {
t.Errorf("Unexpected pod list: %#v", pods)
}
}
func TestEtcdListPodsNotFound(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
key := "/registry/hosts/machine/pods"
fakeClient.Data[key] = EtcdResponseWithError{
R: &etcd.Response{},
E: &etcd.EtcdError{ErrorCode: 100},
}
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
pods, err := registry.ListPods(nil)
expectNoError(t, err)
if len(pods) != 0 {
t.Errorf("Unexpected pod list: %#v", pods)
}
}
func TestEtcdListPods(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
key := "/registry/hosts/machine/pods"
fakeClient.Data[key] = EtcdResponseWithError{
R: &etcd.Response{
Node: &etcd.Node{
Nodes: []*etcd.Node{
{
Value: util.MakeJSONString(api.Pod{JSONBase: api.JSONBase{ID: "foo"}}),
},
{
Value: util.MakeJSONString(api.Pod{JSONBase: api.JSONBase{ID: "bar"}}),
},
},
},
},
E: nil,
}
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
pods, err := registry.ListPods(nil)
expectNoError(t, err)
if len(pods) != 2 || pods[0].ID != "foo" || pods[1].ID != "bar" {
t.Errorf("Unexpected pod list: %#v", pods)
}
}
func TestEtcdListControllersNotFound(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
key := "/registry/controllers"
fakeClient.Data[key] = EtcdResponseWithError{
R: &etcd.Response{},
E: &etcd.EtcdError{ErrorCode: 100},
}
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
controllers, err := registry.ListControllers()
expectNoError(t, err)
if len(controllers) != 0 {
t.Errorf("Unexpected controller list: %#v", controllers)
}
}
func TestEtcdListServicesNotFound(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
key := "/registry/services/specs"
fakeClient.Data[key] = EtcdResponseWithError{
R: &etcd.Response{},
E: &etcd.EtcdError{ErrorCode: 100},
}
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
services, err := registry.ListServices()
expectNoError(t, err)
if len(services.Items) != 0 {
t.Errorf("Unexpected controller list: %#v", services)
}
}
func TestEtcdListControllers(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
key := "/registry/controllers"
fakeClient.Data[key] = EtcdResponseWithError{
R: &etcd.Response{
Node: &etcd.Node{
Nodes: []*etcd.Node{
{
Value: util.MakeJSONString(api.ReplicationController{JSONBase: api.JSONBase{ID: "foo"}}),
},
{
Value: util.MakeJSONString(api.ReplicationController{JSONBase: api.JSONBase{ID: "bar"}}),
},
},
},
},
E: nil,
}
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
controllers, err := registry.ListControllers()
expectNoError(t, err)
if len(controllers) != 2 || controllers[0].ID != "foo" || controllers[1].ID != "bar" {
t.Errorf("Unexpected controller list: %#v", controllers)
}
}
func TestEtcdGetController(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
fakeClient.Set("/registry/controllers/foo", util.MakeJSONString(api.ReplicationController{JSONBase: api.JSONBase{ID: "foo"}}), 0)
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
ctrl, err := registry.GetController("foo")
expectNoError(t, err)
if ctrl.ID != "foo" {
t.Errorf("Unexpected controller: %#v", ctrl)
}
}
func TestEtcdGetControllerNotFound(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
fakeClient.Data["/registry/controllers/foo"] = EtcdResponseWithError{
R: &etcd.Response{
Node: nil,
},
E: &etcd.EtcdError{
ErrorCode: 100,
},
}
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
ctrl, err := registry.GetController("foo")
if ctrl != nil {
t.Errorf("Unexpected non-nil controller: %#v", ctrl)
}
if err == nil {
t.Error("Unexpected non-error.")
}
}
func TestEtcdDeleteController(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
err := registry.DeleteController("foo")
expectNoError(t, err)
if len(fakeClient.deletedKeys) != 1 {
t.Errorf("Expected 1 delete, found %#v", fakeClient.deletedKeys)
}
key := "/registry/controllers/foo"
if fakeClient.deletedKeys[0] != key {
t.Errorf("Unexpected key: %s, expected %s", fakeClient.deletedKeys[0], key)
}
}
func TestEtcdCreateController(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
err := registry.CreateController(api.ReplicationController{
JSONBase: api.JSONBase{
ID: "foo",
},
})
expectNoError(t, err)
resp, err := fakeClient.Get("/registry/controllers/foo", false, false)
expectNoError(t, err)
var ctrl api.ReplicationController
err = json.Unmarshal([]byte(resp.Node.Value), &ctrl)
expectNoError(t, err)
if ctrl.ID != "foo" {
t.Errorf("Unexpected pod: %#v %s", ctrl, resp.Node.Value)
}
}
func TestEtcdUpdateController(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
fakeClient.Set("/registry/controllers/foo", util.MakeJSONString(api.ReplicationController{JSONBase: api.JSONBase{ID: "foo"}}), 0)
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
err := registry.UpdateController(api.ReplicationController{
JSONBase: api.JSONBase{ID: "foo"},
DesiredState: api.ReplicationControllerState{
Replicas: 2,
},
})
expectNoError(t, err)
ctrl, err := registry.GetController("foo")
if ctrl.DesiredState.Replicas != 2 {
t.Errorf("Unexpected controller: %#v", ctrl)
}
}
func TestEtcdListServices(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
key := "/registry/services/specs"
fakeClient.Data[key] = EtcdResponseWithError{
R: &etcd.Response{
Node: &etcd.Node{
Nodes: []*etcd.Node{
{
Value: util.MakeJSONString(api.Service{JSONBase: api.JSONBase{ID: "foo"}}),
},
{
Value: util.MakeJSONString(api.Service{JSONBase: api.JSONBase{ID: "bar"}}),
},
},
},
},
E: nil,
}
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
services, err := registry.ListServices()
expectNoError(t, err)
if len(services.Items) != 2 || services.Items[0].ID != "foo" || services.Items[1].ID != "bar" {
t.Errorf("Unexpected pod list: %#v", services)
}
}
func TestEtcdCreateService(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
fakeClient.Data["/registry/services/specs/foo"] = EtcdResponseWithError{
R: &etcd.Response{
Node: nil,
},
E: &etcd.EtcdError{ErrorCode: 100},
}
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
err := registry.CreateService(api.Service{
JSONBase: api.JSONBase{ID: "foo"},
})
expectNoError(t, err)
resp, err := fakeClient.Get("/registry/services/specs/foo", false, false)
expectNoError(t, err)
var service api.Service
err = json.Unmarshal([]byte(resp.Node.Value), &service)
expectNoError(t, err)
if service.ID != "foo" {
t.Errorf("Unexpected service: %#v %s", service, resp.Node.Value)
}
}
func TestEtcdGetService(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
fakeClient.Set("/registry/services/specs/foo", util.MakeJSONString(api.Service{JSONBase: api.JSONBase{ID: "foo"}}), 0)
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
service, err := registry.GetService("foo")
expectNoError(t, err)
if service.ID != "foo" {
t.Errorf("Unexpected pod: %#v", service)
}
}
func TestEtcdGetServiceNotFound(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
fakeClient.Data["/registry/services/specs/foo"] = EtcdResponseWithError{
R: &etcd.Response{
Node: nil,
},
E: &etcd.EtcdError{
ErrorCode: 100,
},
}
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
_, err := registry.GetService("foo")
if err == nil {
t.Errorf("Unexpected non-error.")
}
}
func TestEtcdDeleteService(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
err := registry.DeleteService("foo")
expectNoError(t, err)
if len(fakeClient.deletedKeys) != 2 {
t.Errorf("Expected 2 delete, found %#v", fakeClient.deletedKeys)
}
key := "/registry/services/specs/foo"
if fakeClient.deletedKeys[0] != key {
t.Errorf("Unexpected key: %s, expected %s", fakeClient.deletedKeys[0], key)
}
key = "/registry/services/endpoints/foo"
if fakeClient.deletedKeys[1] != key {
t.Errorf("Unexpected key: %s, expected %s", fakeClient.deletedKeys[1], key)
}
}
func TestEtcdUpdateService(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
fakeClient.Set("/registry/services/specs/foo", util.MakeJSONString(api.Service{JSONBase: api.JSONBase{ID: "foo"}}), 0)
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
err := registry.UpdateService(api.Service{
JSONBase: api.JSONBase{ID: "foo"},
Labels: map[string]string{
"baz": "bar",
},
})
expectNoError(t, err)
svc, err := registry.GetService("foo")
if svc.Labels["baz"] != "bar" {
t.Errorf("Unexpected service: %#v", svc)
}
}
func TestEtcdUpdateEndpoints(t *testing.T) {
fakeClient := MakeFakeEtcdClient(t)
registry := MakeTestEtcdRegistry(fakeClient, []string{"machine"})
endpoints := api.Endpoints{
Name: "foo",
Endpoints: []string{"baz", "bar"},
}
err := registry.UpdateEndpoints(endpoints)
expectNoError(t, err)
response, err := fakeClient.Get("/registry/services/endpoints/foo", false, false)
expectNoError(t, err)
var endpointsOut api.Endpoints
err = json.Unmarshal([]byte(response.Node.Value), &endpointsOut)
if !reflect.DeepEqual(endpoints, endpointsOut) {
t.Errorf("Unexpected endpoints: %#v, expected %#v", endpointsOut, endpoints)
}
}