mirror of https://github.com/k3s-io/k3s.git
57 lines
1.3 KiB
Go
57 lines
1.3 KiB
Go
package executor
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import (
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"context"
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"errors"
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"io/ioutil"
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"path/filepath"
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daemonconfig "github.com/k3s-io/k3s/pkg/daemons/config"
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"github.com/k3s-io/k3s/pkg/version"
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"github.com/sirupsen/logrus"
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"go.etcd.io/etcd/server/v3/embed"
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"go.etcd.io/etcd/server/v3/etcdserver/api/rafthttp"
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)
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type Embedded struct {
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nodeConfig *daemonconfig.Node
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}
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func (e *Embedded) ETCD(ctx context.Context, args ETCDConfig, extraArgs []string) error {
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configFile, err := args.ToConfigFile(extraArgs)
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if err != nil {
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return err
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}
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cfg, err := embed.ConfigFromFile(configFile)
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if err != nil {
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return err
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}
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etcd, err := embed.StartEtcd(cfg)
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if err != nil {
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return err
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}
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go func() {
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select {
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case err := <-etcd.Server.ErrNotify():
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if errors.Is(err, rafthttp.ErrMemberRemoved) {
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tombstoneFile := filepath.Join(args.DataDir, "tombstone")
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if err := ioutil.WriteFile(tombstoneFile, []byte{}, 0600); err != nil {
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logrus.Fatalf("failed to write tombstone file to %s", tombstoneFile)
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}
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logrus.Infof("this node has been removed from the cluster please restart %s to rejoin the cluster", version.Program)
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return
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}
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case <-ctx.Done():
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logrus.Infof("stopping etcd")
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etcd.Close()
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case <-etcd.Server.StopNotify():
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logrus.Fatalf("etcd stopped")
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case err := <-etcd.Err():
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logrus.Fatalf("etcd exited: %v", err)
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}
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}()
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return nil
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}
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