k3s/pkg/cluster/https.go

82 lines
1.9 KiB
Go

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/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.HTTPSPort)
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: "k3s",
Organization: []string{"k3s"},
TLSConfig: tls.Config{
ClientAuth: tls.RequestClientCert,
},
SANs: c.config.SANs,
})
}
func (c *Cluster) startClusterAndHTTPS(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", "k3s-serving", cache)
}