134 lines
3.9 KiB
Go
134 lines
3.9 KiB
Go
/*
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Copyright 2019 The KubeSphere 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 app
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import (
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"fmt"
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"github.com/kiali/kiali/business"
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kconfig "github.com/kiali/kiali/config"
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"github.com/kiali/kiali/kubernetes"
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"github.com/kiali/kiali/prometheus"
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"github.com/spf13/cobra"
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utilerrors "k8s.io/apimachinery/pkg/util/errors"
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"k8s.io/client-go/tools/clientcmd"
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cliflag "k8s.io/component-base/cli/flag"
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"k8s.io/klog"
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"kubesphere.io/kubesphere/cmd/ks-apiserver/app/options"
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apiserverconfig "kubesphere.io/kubesphere/pkg/apiserver/config"
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"kubesphere.io/kubesphere/pkg/utils/signals"
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"kubesphere.io/kubesphere/pkg/utils/term"
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tracing "kubesphere.io/kubesphere/pkg/kapis/servicemesh/metrics/v1alpha2"
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)
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func NewAPIServerCommand() *cobra.Command {
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s := options.NewServerRunOptions()
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// Load configuration from file
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conf, err := apiserverconfig.TryLoadFromDisk()
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if err == nil {
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s = &options.ServerRunOptions{
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GenericServerRunOptions: s.GenericServerRunOptions,
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Config: conf,
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}
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} else {
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klog.Fatal("Failed to load configuration from disk", err)
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}
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cmd := &cobra.Command{
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Use: "ks-apiserver",
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Long: `The KubeSphere API server validates and configures data for the API objects.
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The API Server services REST operations and provides the frontend to the
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cluster's shared state through which all other components interact.`,
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RunE: func(cmd *cobra.Command, args []string) error {
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if errs := s.Validate(); len(errs) != 0 {
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return utilerrors.NewAggregate(errs)
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}
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return Run(s, signals.SetupSignalHandler())
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},
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SilenceUsage: true,
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}
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fs := cmd.Flags()
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namedFlagSets := s.Flags()
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for _, f := range namedFlagSets.FlagSets {
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fs.AddFlagSet(f)
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}
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usageFmt := "Usage:\n %s\n"
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cols, _, _ := term.TerminalSize(cmd.OutOrStdout())
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cmd.SetHelpFunc(func(cmd *cobra.Command, args []string) {
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fmt.Fprintf(cmd.OutOrStdout(), "%s\n\n"+usageFmt, cmd.Long, cmd.UseLine())
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cliflag.PrintSections(cmd.OutOrStdout(), namedFlagSets, cols)
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})
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return cmd
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}
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func Run(s *options.ServerRunOptions, stopCh <-chan struct{}) error {
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initializeServicemeshConfig(s)
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apiserver, err := s.NewAPIServer(stopCh)
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if err != nil {
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return err
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}
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err = apiserver.PrepareRun(stopCh)
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if err != nil {
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return nil
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}
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return apiserver.Run(stopCh)
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}
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func initializeServicemeshConfig(s *options.ServerRunOptions) {
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// Initialize kiali config
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config := kconfig.NewConfig()
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// Config jaeger query endpoint address
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if s.ServiceMeshOptions != nil && len(s.ServiceMeshOptions.JaegerQueryHost) != 0 {
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tracing.JaegerQueryUrl = s.ServiceMeshOptions.JaegerQueryHost
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}
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// Exclude system namespaces
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config.API.Namespaces.Exclude = []string{"istio-system", "kubesphere*", "kube*"}
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config.InCluster = true
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// Set default prometheus service url
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config.ExternalServices.PrometheusServiceURL = s.ServiceMeshOptions.ServicemeshPrometheusHost
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config.ExternalServices.PrometheusCustomMetricsURL = config.ExternalServices.PrometheusServiceURL
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// Set istio pilot discovery service url
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config.ExternalServices.Istio.UrlServiceVersion = s.ServiceMeshOptions.IstioPilotHost
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kconfig.Set(config)
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// Set kiali config
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kubeconfig, err := clientcmd.BuildConfigFromFlags("", s.KubernetesOptions.KubeConfig)
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if err != nil {
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fmt.Println(err)
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}
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k8sClient, err := kubernetes.NewClientFromConfig(kubeconfig)
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if err != nil {
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fmt.Println(err)
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}
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prometheusClient, _ := prometheus.NewClient()
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business.SetWithBackends(k8sClient, prometheusClient)
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}
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