248 lines
8.5 KiB
Go
248 lines
8.5 KiB
Go
/*
|
|
Copyright 2021 The Karmada 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 (
|
|
"context"
|
|
"fmt"
|
|
"net"
|
|
"net/http"
|
|
"path"
|
|
"time"
|
|
|
|
"github.com/spf13/cobra"
|
|
"k8s.io/apimachinery/pkg/util/sets"
|
|
"k8s.io/apiserver/pkg/endpoints/openapi"
|
|
"k8s.io/apiserver/pkg/endpoints/request"
|
|
genericapiserver "k8s.io/apiserver/pkg/server"
|
|
genericfilters "k8s.io/apiserver/pkg/server/filters"
|
|
genericoptions "k8s.io/apiserver/pkg/server/options"
|
|
"k8s.io/client-go/rest"
|
|
cliflag "k8s.io/component-base/cli/flag"
|
|
"k8s.io/component-base/term"
|
|
"k8s.io/klog/v2"
|
|
netutils "k8s.io/utils/net"
|
|
"sigs.k8s.io/controller-runtime/pkg/client/apiutil"
|
|
|
|
"github.com/karmada-io/karmada/cmd/karmada-search/app/options"
|
|
searchscheme "github.com/karmada-io/karmada/pkg/apis/search/scheme"
|
|
karmadaclientset "github.com/karmada-io/karmada/pkg/generated/clientset/versioned"
|
|
informerfactory "github.com/karmada-io/karmada/pkg/generated/informers/externalversions"
|
|
generatedopenapi "github.com/karmada-io/karmada/pkg/generated/openapi"
|
|
"github.com/karmada-io/karmada/pkg/search"
|
|
"github.com/karmada-io/karmada/pkg/search/proxy"
|
|
"github.com/karmada-io/karmada/pkg/search/proxy/framework/runtime"
|
|
"github.com/karmada-io/karmada/pkg/sharedcli"
|
|
"github.com/karmada-io/karmada/pkg/sharedcli/klogflag"
|
|
"github.com/karmada-io/karmada/pkg/sharedcli/profileflag"
|
|
"github.com/karmada-io/karmada/pkg/util/lifted"
|
|
"github.com/karmada-io/karmada/pkg/version"
|
|
"github.com/karmada-io/karmada/pkg/version/sharedcommand"
|
|
)
|
|
|
|
// Option configures a framework.Registry.
|
|
type Option func(*runtime.Registry)
|
|
|
|
// NewKarmadaSearchCommand creates a *cobra.Command object with default parameters
|
|
func NewKarmadaSearchCommand(ctx context.Context, registryOptions ...Option) *cobra.Command {
|
|
opts := options.NewOptions()
|
|
|
|
cmd := &cobra.Command{
|
|
Use: "karmada-search",
|
|
Long: `The karmada-search starts an aggregated server. It provides
|
|
capabilities such as global search and resource proxy in a multi-cloud environment.`,
|
|
RunE: func(cmd *cobra.Command, args []string) error {
|
|
if err := opts.Complete(); err != nil {
|
|
return err
|
|
}
|
|
if err := opts.Validate(); err != nil {
|
|
return err
|
|
}
|
|
if err := run(ctx, opts, registryOptions...); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
},
|
|
}
|
|
|
|
fss := cliflag.NamedFlagSets{}
|
|
|
|
genericFlagSet := fss.FlagSet("generic")
|
|
opts.AddFlags(genericFlagSet)
|
|
|
|
// Set klog flags
|
|
logsFlagSet := fss.FlagSet("logs")
|
|
klogflag.Add(logsFlagSet)
|
|
|
|
cmd.AddCommand(sharedcommand.NewCmdVersion("karmada-search"))
|
|
cmd.Flags().AddFlagSet(genericFlagSet)
|
|
cmd.Flags().AddFlagSet(logsFlagSet)
|
|
|
|
cols, _, _ := term.TerminalSize(cmd.OutOrStdout())
|
|
sharedcli.SetUsageAndHelpFunc(cmd, fss, cols)
|
|
return cmd
|
|
}
|
|
|
|
// WithPlugin creates an Option based on plugin factory.
|
|
// Please don't remove this function: it is used to register out-of-tree plugins,
|
|
// hence there are no references to it from the karmada-search code base.
|
|
func WithPlugin(factory runtime.PluginFactory) Option {
|
|
return func(registry *runtime.Registry) {
|
|
registry.Register(factory)
|
|
}
|
|
}
|
|
|
|
// `run` runs the karmada-search with options. This should never exit.
|
|
func run(ctx context.Context, o *options.Options, registryOptions ...Option) error {
|
|
klog.Infof("karmada-search version: %s", version.Get())
|
|
|
|
profileflag.ListenAndServe(o.ProfileOpts)
|
|
|
|
config, err := config(o, registryOptions...)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
server, err := config.Complete().New()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
server.GenericAPIServer.AddPostStartHookOrDie("start-karmada-search-informers", func(context genericapiserver.PostStartHookContext) error {
|
|
config.GenericConfig.SharedInformerFactory.Start(context.StopCh)
|
|
return nil
|
|
})
|
|
|
|
server.GenericAPIServer.AddPostStartHookOrDie("start-karmada-informers", func(context genericapiserver.PostStartHookContext) error {
|
|
config.ExtraConfig.KarmadaSharedInformerFactory.Start(context.StopCh)
|
|
return nil
|
|
})
|
|
|
|
if config.ExtraConfig.Controller != nil {
|
|
server.GenericAPIServer.AddPostStartHookOrDie("start-karmada-search-controller", func(context genericapiserver.PostStartHookContext) error {
|
|
// start ResourceRegistry controller
|
|
config.ExtraConfig.Controller.Start(context.StopCh)
|
|
return nil
|
|
})
|
|
}
|
|
|
|
if config.ExtraConfig.ProxyController != nil {
|
|
server.GenericAPIServer.AddPostStartHookOrDie("start-karmada-proxy-controller", func(context genericapiserver.PostStartHookContext) error {
|
|
config.ExtraConfig.ProxyController.Start(context.StopCh)
|
|
return nil
|
|
})
|
|
|
|
server.GenericAPIServer.AddPreShutdownHookOrDie("stop-karmada-proxy-controller", func() error {
|
|
config.ExtraConfig.ProxyController.Stop()
|
|
return nil
|
|
})
|
|
}
|
|
|
|
return server.GenericAPIServer.PrepareRun().Run(ctx.Done())
|
|
}
|
|
|
|
// `config` returns config for the api server given Options
|
|
func config(o *options.Options, outOfTreeRegistryOptions ...Option) (*search.Config, error) {
|
|
// TODO have a "real" external address
|
|
if err := o.RecommendedOptions.SecureServing.MaybeDefaultWithSelfSignedCerts("localhost", nil, []net.IP{netutils.ParseIPSloppy("127.0.0.1")}); err != nil {
|
|
return nil, fmt.Errorf("error creating self-signed certificates: %v", err)
|
|
}
|
|
|
|
o.RecommendedOptions.Features = &genericoptions.FeatureOptions{EnableProfiling: false}
|
|
|
|
serverConfig := genericapiserver.NewRecommendedConfig(searchscheme.Codecs)
|
|
serverConfig.LongRunningFunc = customLongRunningRequestCheck(
|
|
sets.NewString("watch", "proxy"),
|
|
sets.NewString("attach", "exec", "proxy", "log", "portforward"))
|
|
serverConfig.OpenAPIConfig = genericapiserver.DefaultOpenAPIConfig(generatedopenapi.GetOpenAPIDefinitions, openapi.NewDefinitionNamer(searchscheme.Scheme))
|
|
serverConfig.OpenAPIConfig.Info.Title = "karmada-search"
|
|
if err := o.RecommendedOptions.ApplyTo(serverConfig); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
serverConfig.ClientConfig.QPS = o.KubeAPIQPS
|
|
serverConfig.ClientConfig.Burst = o.KubeAPIBurst
|
|
|
|
httpClient, err := rest.HTTPClientFor(serverConfig.ClientConfig)
|
|
if err != nil {
|
|
klog.Errorf("Failed to create HTTP client: %v", err)
|
|
return nil, err
|
|
}
|
|
restMapper, err := apiutil.NewDynamicRESTMapper(serverConfig.ClientConfig, httpClient)
|
|
if err != nil {
|
|
klog.Errorf("Failed to create REST mapper: %v", err)
|
|
return nil, err
|
|
}
|
|
|
|
karmadaClient := karmadaclientset.NewForConfigOrDie(serverConfig.ClientConfig)
|
|
factory := informerfactory.NewSharedInformerFactory(karmadaClient, 0)
|
|
|
|
var ctl *search.Controller
|
|
if !o.DisableSearch {
|
|
ctl, err = search.NewController(serverConfig.ClientConfig, factory, restMapper)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
|
|
var proxyCtl *proxy.Controller
|
|
if !o.DisableProxy {
|
|
outOfTreeRegistry := make(runtime.Registry, 0, len(outOfTreeRegistryOptions))
|
|
for _, option := range outOfTreeRegistryOptions {
|
|
option(&outOfTreeRegistry)
|
|
}
|
|
|
|
proxyCtl, err = proxy.NewController(proxy.NewControllerOption{
|
|
RestConfig: serverConfig.ClientConfig,
|
|
RestMapper: restMapper,
|
|
KubeFactory: serverConfig.SharedInformerFactory,
|
|
KarmadaFactory: factory,
|
|
MinRequestTimeout: time.Second * time.Duration(serverConfig.Config.MinRequestTimeout),
|
|
OutOfTreeRegistry: outOfTreeRegistry,
|
|
})
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
|
|
config := &search.Config{
|
|
GenericConfig: serverConfig,
|
|
ExtraConfig: search.ExtraConfig{
|
|
KarmadaSharedInformerFactory: factory,
|
|
Controller: ctl,
|
|
ProxyController: proxyCtl,
|
|
},
|
|
}
|
|
return config, nil
|
|
}
|
|
|
|
// disable `deprecation` check until the underlying genericfilters.BasicLongRunningRequestCheck starts using generic Set.
|
|
//
|
|
//nolint:staticcheck
|
|
func customLongRunningRequestCheck(longRunningVerbs, longRunningSubresources sets.String) request.LongRunningRequestCheck {
|
|
return func(r *http.Request, requestInfo *request.RequestInfo) bool {
|
|
if requestInfo.APIGroup == "search.karmada.io" && requestInfo.Resource == "proxying" {
|
|
reqClone := r.Clone(context.TODO())
|
|
// requestInfo.Parts is like [proxying foo proxy api v1 nodes]
|
|
reqClone.URL.Path = "/" + path.Join(requestInfo.Parts[3:]...)
|
|
requestInfo = lifted.NewRequestInfo(reqClone)
|
|
}
|
|
return genericfilters.BasicLongRunningRequestCheck(longRunningVerbs, longRunningSubresources)(r, requestInfo)
|
|
}
|
|
}
|