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fakes.go
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fakes.go
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/*
Copyright 2015 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 backends
import (
"encoding/json"
"github.com/golang/glog"
computealpha "google.golang.org/api/compute/v0.alpha"
compute "google.golang.org/api/compute/v1"
api_v1 "k8s.io/api/core/v1"
"k8s.io/client-go/tools/cache"
"k8s.io/ingress-gce/pkg/annotations"
"k8s.io/ingress-gce/pkg/utils"
)
// NewFakeBackendServices creates a new fake backend services manager.
func NewFakeBackendServices(ef func(op int, be *compute.BackendService) error, alpha bool) *FakeBackendServices {
return &FakeBackendServices{
alphaWhitelisted: alpha,
errFunc: ef,
backendServices: cache.NewStore(func(obj interface{}) (string, error) {
svc := obj.(*compute.BackendService)
return svc.Name, nil
}),
}
}
// FakeBackendServices fakes out GCE backend services.
type FakeBackendServices struct {
backendServices cache.Store
calls []int
errFunc func(op int, be *compute.BackendService) error
alphaWhitelisted bool
}
// GetGlobalBackendService fakes getting a backend service from the cloud.
func (f *FakeBackendServices) GetGlobalBackendService(name string) (*compute.BackendService, error) {
f.calls = append(f.calls, utils.Get)
obj, exists, err := f.backendServices.GetByKey(name)
if !exists {
return nil, utils.FakeGoogleAPINotFoundErr()
}
if err != nil {
return nil, err
}
svc := obj.(*compute.BackendService)
if name == svc.Name {
// Currently, getting an Alpha BackendService strips it of Protocol if HTTP2.
// TODO: remove this check once ProtocolHTTP2 moves into Beta or GA.
if svc.Protocol == string(annotations.ProtocolHTTP2) {
svc.Protocol = ""
}
return svc, nil
}
return nil, utils.FakeGoogleAPINotFoundErr()
}
func (f *FakeBackendServices) GetAlphaGlobalBackendService(name string) (*computealpha.BackendService, error) {
if !f.alphaWhitelisted {
return nil, utils.FakeGoogleAPIForbiddenErr()
}
obj, err := f.GetGlobalBackendService(name)
if err != nil {
return nil, err
}
// Currently, getting an Alpha BackendService strips it of Protocol if HTTP2.
// TODO: remove this check once ProtocolHTTP2 moves into Beta or GA.
if obj.Protocol == "" {
obj.Protocol = string(annotations.ProtocolHTTP2)
}
glog.V(2).Infof("get backend service %+v", obj)
return toAlphaBackendService(obj), nil
}
// CreateGlobalBackendService fakes backend service creation.
func (f *FakeBackendServices) CreateGlobalBackendService(be *compute.BackendService) error {
if f.errFunc != nil {
if err := f.errFunc(utils.Create, be); err != nil {
return err
}
}
f.calls = append(f.calls, utils.Create)
be.SelfLink = be.Name
return f.backendServices.Update(be)
}
// CreateGlobalBackendService fakes updating a backend service.
func (f *FakeBackendServices) CreateAlphaGlobalBackendService(be *computealpha.BackendService) error {
if !f.alphaWhitelisted {
return utils.FakeGoogleAPIForbiddenErr()
}
return f.CreateGlobalBackendService(toV1BackendService(be))
}
// DeleteGlobalBackendService fakes backend service deletion.
func (f *FakeBackendServices) DeleteGlobalBackendService(name string) error {
f.calls = append(f.calls, utils.Delete)
svc, exists, err := f.backendServices.GetByKey(name)
if !exists {
return utils.FakeGoogleAPINotFoundErr()
}
if err != nil {
return err
}
return f.backendServices.Delete(svc)
}
// ListGlobalBackendServices fakes backend service listing.
func (f *FakeBackendServices) ListGlobalBackendServices() ([]*compute.BackendService, error) {
var svcs []*compute.BackendService
for _, s := range f.backendServices.List() {
svc := s.(*compute.BackendService)
svcs = append(svcs, svc)
}
return svcs, nil
}
// UpdateGlobalBackendService fakes updating a backend service.
func (f *FakeBackendServices) UpdateGlobalBackendService(be *compute.BackendService) error {
if f.errFunc != nil {
if err := f.errFunc(utils.Update, be); err != nil {
return err
}
}
f.calls = append(f.calls, utils.Update)
glog.V(2).Infof("update backend service %+v", be)
return f.backendServices.Update(be)
}
// UpdateGlobalBackendService fakes updating a backend service.
func (f *FakeBackendServices) UpdateAlphaGlobalBackendService(be *computealpha.BackendService) error {
if !f.alphaWhitelisted {
return utils.FakeGoogleAPIForbiddenErr()
}
return f.UpdateGlobalBackendService(toV1BackendService(be))
}
// GetGlobalBackendServiceHealth fakes getting backend service health.
func (f *FakeBackendServices) GetGlobalBackendServiceHealth(name, instanceGroupLink string) (*compute.BackendServiceGroupHealth, error) {
be, err := f.GetGlobalBackendService(name)
if err != nil {
return nil, err
}
states := []*compute.HealthStatus{
{
HealthState: "HEALTHY",
IpAddress: "",
Port: be.Port,
},
}
return &compute.BackendServiceGroupHealth{
HealthStatus: states}, nil
}
// FakeProbeProvider implements the probeProvider interface for tests.
type FakeProbeProvider struct {
probes map[ServicePort]*api_v1.Probe
}
// NewFakeProbeProvider returns a struct which satisfies probeProvider interface
func NewFakeProbeProvider(probes map[ServicePort]*api_v1.Probe) *FakeProbeProvider {
return &FakeProbeProvider{probes}
}
// GetProbe returns the probe for a given nodePort
func (pp *FakeProbeProvider) GetProbe(port ServicePort) (*api_v1.Probe, error) {
if probe, exists := pp.probes[port]; exists && probe.HTTPGet != nil {
return probe, nil
}
return nil, nil
}
func toV1BackendService(be *computealpha.BackendService) *compute.BackendService {
bytes, _ := be.MarshalJSON()
res := &compute.BackendService{}
json.Unmarshal(bytes, res)
return res
}
func toAlphaBackendService(be *compute.BackendService) *computealpha.BackendService {
bytes, _ := be.MarshalJSON()
res := &computealpha.BackendService{}
json.Unmarshal(bytes, res)
return res
}