Files
kubesphere/pkg/app/app.go
2018-07-31 14:04:05 +08:00

146 lines
3.8 KiB
Go

/*
Copyright 2018 The KubeSphere 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 app
import (
"crypto/tls"
"fmt"
"github.com/emicklei/go-restful"
"github.com/golang/glog"
"k8s.io/api/core/v1"
meta_v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"net"
"net/http"
"github.com/emicklei/go-restful-openapi"
"github.com/go-openapi/spec"
_ "kubesphere.io/kubesphere/pkg/apis/v1alpha"
"kubesphere.io/kubesphere/pkg/client"
"kubesphere.io/kubesphere/pkg/constants"
"kubesphere.io/kubesphere/pkg/models/controllers"
"kubesphere.io/kubesphere/pkg/options"
)
type kubeSphereServer struct {
insecureBindAddress net.IP
bindAddress net.IP
insecurePort int
port int
certFile string
keyFile string
container *restful.Container
}
func newKubeSphereServer(options *options.ServerRunOptions) *kubeSphereServer {
s := kubeSphereServer{
insecureBindAddress: options.GetInsecureBindAddress(),
bindAddress: options.GetBindAddress(),
insecurePort: options.GetInsecurePort(),
port: options.GetPort(),
certFile: options.GetCertFile(),
keyFile: options.GetKeyFile(),
}
return &s
}
func preCheck() error {
k8sClient := client.NewK8sClient()
nsList, err := k8sClient.CoreV1().Namespaces().List(meta_v1.ListOptions{})
if err != nil {
return err
}
for _, ns := range nsList.Items {
if ns.Name == constants.KubeSphereControlNamespace {
return nil
}
}
namespace := v1.Namespace{ObjectMeta: meta_v1.ObjectMeta{Name: constants.KubeSphereControlNamespace}}
_, err = k8sClient.CoreV1().Namespaces().Create(&namespace)
return err
}
func registerSwagger() {
config := restfulspec.Config{
WebServices: restful.RegisteredWebServices(), // you control what services are visible
APIPath: "/swagger-ui/api.json",
PostBuildSwaggerObjectHandler: enrichSwaggerObject}
restful.DefaultContainer.Add(restfulspec.NewOpenAPIService(config))
http.Handle("/swagger-ui/", http.StripPrefix("/swagger-ui/", http.FileServer(http.Dir("/usr/lib/kubesphere/swagger-ui"))))
}
func enrichSwaggerObject(swo *spec.Swagger) {
swo.Info = &spec.Info{
InfoProps: spec.InfoProps{
Title: "KubeSphere",
Description: "The extend apis of kubesphere",
Version: "v1.0-alpha",
},
}
swo.Tags = []spec.Tag{spec.Tag{TagProps: spec.TagProps{
Name: "extend apis"}}}
}
func (server *kubeSphereServer) run() {
err := preCheck()
if err != nil {
glog.Error(err)
return
}
go controllers.Run()
registerSwagger()
if len(server.certFile) > 0 && len(server.keyFile) > 0 {
servingCert, err := tls.LoadX509KeyPair(server.certFile, server.keyFile)
if err != nil {
glog.Error(err)
return
}
secureAddr := fmt.Sprintf("%s:%d", server.bindAddress, server.port)
glog.Infof("Serving securely on addr: %s", secureAddr)
httpServer := &http.Server{
Addr: secureAddr,
Handler: restful.DefaultContainer,
TLSConfig: &tls.Config{Certificates: []tls.Certificate{servingCert}},
}
go func() { glog.Fatal(httpServer.ListenAndServeTLS("", "")) }()
} else {
insecureAddr := fmt.Sprintf("%s:%d", server.insecureBindAddress, server.insecurePort)
glog.Infof("Serving insecurely on addr: %s", insecureAddr)
go func() { glog.Fatal(http.ListenAndServe(insecureAddr, nil)) }()
}
select {}
}
func Run() {
server := newKubeSphereServer(options.ServerOptions)
server.run()
}