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Skip scale-up checks for first member of etcd cluster. (#649) #654

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merged 1 commit into from
Aug 2, 2023
Merged

Skip scale-up checks for first member of etcd cluster. (#649) #654

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12 changes: 10 additions & 2 deletions pkg/initializer/initializer.go
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@ import (
"fmt"
"os"
"path/filepath"
"strings"
"time"

"github.com/gardener/etcd-backup-restore/pkg/errors"
Expand Down Expand Up @@ -57,8 +58,15 @@ func (e *EtcdInitializer) Initialize(mode validator.Mode, failBelowRevision int6
ctx := context.Background()
var err error

//Etcd cluster scale-up case
if miscellaneous.IsMultiNode(logger) {
podName, err := miscellaneous.GetEnvVarOrError("POD_NAME")
if err != nil {
logger.Fatalf("Error reading POD_NAME env var : %v", err)
}

// Etcd cluster scale-up case
// Note: first member of etcd cluster can never be part of scale-up case.
// TODO: consider removing this special check for first cluster member when backup-restore can check presence of any member in cluster.
if miscellaneous.IsMultiNode(logger) && !strings.HasSuffix(podName, "0") {
clientSet, err := miscellaneous.GetKubernetesClientSetOrError()
if err != nil {
logger.Fatalf("failed to create clientset, %v", err)
Expand Down