mirror of
https://github.com/k3s-io/k3s.git
synced 2024-06-07 19:41:36 +00:00
88 lines
2.4 KiB
Go
88 lines
2.4 KiB
Go
package cluster
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import (
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"context"
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"crypto/tls"
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"log"
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"net"
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"net/http"
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"path/filepath"
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"github.com/rancher/dynamiclistener"
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"github.com/rancher/dynamiclistener/factory"
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"github.com/rancher/dynamiclistener/storage/file"
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"github.com/rancher/dynamiclistener/storage/kubernetes"
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"github.com/rancher/dynamiclistener/storage/memory"
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"github.com/rancher/k3s/pkg/daemons/config"
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"github.com/rancher/k3s/pkg/version"
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"github.com/rancher/wrangler-api/pkg/generated/controllers/core"
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"github.com/sirupsen/logrus"
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)
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func (c *Cluster) newListener(ctx context.Context) (net.Listener, http.Handler, error) {
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tcp, err := dynamiclistener.NewTCPListener(c.config.BindAddress, c.config.SupervisorPort)
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if err != nil {
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return nil, nil, err
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}
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cert, key, err := factory.LoadCerts(c.runtime.ServerCA, c.runtime.ServerCAKey)
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if err != nil {
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return nil, nil, err
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}
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storage := tlsStorage(ctx, c.config.DataDir, c.runtime)
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return dynamiclistener.NewListener(tcp, storage, cert, key, dynamiclistener.Config{
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CN: version.Program,
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Organization: []string{version.Program},
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TLSConfig: &tls.Config{
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ClientAuth: tls.RequestClientCert,
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MinVersion: c.config.TLSMinVersion,
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CipherSuites: c.config.TLSCipherSuites,
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},
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SANs: append(c.config.SANs, "localhost", "kubernetes", "kubernetes.default", "kubernetes.default.svc."+c.config.ClusterDomain),
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ExpirationDaysCheck: config.CertificateRenewDays,
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})
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}
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func (c *Cluster) initClusterAndHTTPS(ctx context.Context) error {
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l, handler, err := c.newListener(ctx)
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if err != nil {
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return err
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}
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handler, err = c.getHandler(handler)
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if err != nil {
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return err
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}
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l, handler, err = c.initClusterDB(ctx, l, handler)
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if err != nil {
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return err
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}
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server := http.Server{
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Handler: handler,
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ErrorLog: log.New(logrus.StandardLogger().Writer(), "Cluster-Http-Server ", log.LstdFlags),
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}
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go func() {
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err := server.Serve(l)
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logrus.Fatalf("server stopped: %v", err)
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}()
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go func() {
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<-ctx.Done()
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server.Shutdown(context.Background())
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}()
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return nil
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}
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func tlsStorage(ctx context.Context, dataDir string, runtime *config.ControlRuntime) dynamiclistener.TLSStorage {
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fileStorage := file.New(filepath.Join(dataDir, "tls/dynamic-cert.json"))
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cache := memory.NewBacked(fileStorage)
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return kubernetes.New(ctx, func() *core.Factory {
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return runtime.Core
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}, "kube-system", ""+version.Program+"-serving", cache)
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}
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