package cluster import ( "context" "crypto/tls" "net" "net/http" "path/filepath" "github.com/rancher/dynamiclistener" "github.com/rancher/dynamiclistener/factory" "github.com/rancher/dynamiclistener/storage/file" "github.com/rancher/dynamiclistener/storage/kubernetes" "github.com/rancher/dynamiclistener/storage/memory" "github.com/rancher/k3s/pkg/daemons/config" "github.com/rancher/k3s/pkg/version" "github.com/rancher/wrangler-api/pkg/generated/controllers/core" "github.com/sirupsen/logrus" ) func (c *Cluster) newListener(ctx context.Context) (net.Listener, http.Handler, error) { tcp, err := dynamiclistener.NewTCPListener(c.config.BindAddress, c.config.SupervisorPort) if err != nil { return nil, nil, err } cert, key, err := factory.LoadCerts(c.runtime.ServerCA, c.runtime.ServerCAKey) if err != nil { return nil, nil, err } storage := tlsStorage(ctx, c.config.DataDir, c.runtime) return dynamiclistener.NewListener(tcp, storage, cert, key, dynamiclistener.Config{ CN: version.Program, Organization: []string{version.Program}, TLSConfig: tls.Config{ ClientAuth: tls.RequestClientCert, MinVersion: c.config.TLSMinVersion, CipherSuites: c.config.TLSCipherSuites, }, SANs: append(c.config.SANs, "localhost", "kubernetes", "kubernetes.default", "kubernetes.default.svc."+c.config.ClusterDomain), }) } func (c *Cluster) initClusterAndHTTPS(ctx context.Context) error { l, handler, err := c.newListener(ctx) if err != nil { return err } handler, err = c.getHandler(handler) if err != nil { return err } l, handler, err = c.initClusterDB(ctx, l, handler) if err != nil { return err } server := http.Server{ Handler: handler, } go func() { err := server.Serve(l) logrus.Fatalf("server stopped: %v", err) }() go func() { <-ctx.Done() server.Shutdown(context.Background()) }() return nil } func tlsStorage(ctx context.Context, dataDir string, runtime *config.ControlRuntime) dynamiclistener.TLSStorage { fileStorage := file.New(filepath.Join(dataDir, "tls/dynamic-cert.json")) cache := memory.NewBacked(fileStorage) return kubernetes.New(ctx, func() *core.Factory { return runtime.Core }, "kube-system", ""+version.Program+"-serving", cache) }