112 lines
2.7 KiB
Go
112 lines
2.7 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"log"
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"net/http"
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"os/exec"
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"strings"
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"github.com/spf13/pflag"
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api "k8s.io/client-go/pkg/api/v1"
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nginxconfig "k8s.io/ingress/controllers/nginx/pkg/config"
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"k8s.io/ingress/core/pkg/ingress"
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"k8s.io/ingress/core/pkg/ingress/controller"
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"k8s.io/ingress/core/pkg/ingress/defaults"
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)
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func main() {
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dc := newDummyController()
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ic := controller.NewIngressController(dc)
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defer func() {
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log.Printf("Shutting down ingress controller...")
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ic.Stop()
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}()
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ic.Start()
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}
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func newDummyController() ingress.Controller {
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return &DummyController{}
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}
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type DummyController struct{}
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func (dc DummyController) SetConfig(cfgMap *api.ConfigMap) {
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log.Printf("Config map %+v", cfgMap)
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}
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func (dc DummyController) Reload(data []byte) ([]byte, bool, error) {
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out, err := exec.Command("echo", string(data)).CombinedOutput()
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if err != nil {
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log.Printf("Reloaded new config %s", out)
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} else {
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return out, false, err
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}
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return out, true, err
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}
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func (dc DummyController) Test(file string) *exec.Cmd {
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return exec.Command("echo", file)
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}
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func (dc DummyController) OnUpdate(updatePayload ingress.Configuration) ([]byte, error) {
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log.Printf("Received OnUpdate notification")
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for _, b := range updatePayload.Backends {
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eps := []string{}
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for _, e := range b.Endpoints {
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eps = append(eps, e.Address)
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}
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log.Printf("%v: %v", b.Name, strings.Join(eps, ", "))
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}
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return []byte(`<string containing a configuration file>`), nil
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}
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func (dc DummyController) BackendDefaults() defaults.Backend {
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// Just adopt nginx's default backend config
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return nginxconfig.NewDefault().Backend
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}
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func (n DummyController) Name() string {
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return "dummy Controller"
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}
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func (n DummyController) Check(_ *http.Request) error {
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return nil
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}
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func (dc DummyController) Info() *ingress.BackendInfo {
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return &ingress.BackendInfo{
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Name: "dummy",
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Release: "0.0.0",
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Build: "git-00000000",
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Repository: "git://foo.bar.com",
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}
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}
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func (n DummyController) OverrideFlags(*pflag.FlagSet) {
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}
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func (n DummyController) SetListers(lister ingress.StoreLister) {
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}
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func (n DummyController) DefaultIngressClass() string {
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return "dummy"
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}
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