Guard against nil etcd response header (#4339)

sensu · Jun 25, 2021 · d1480a4 · d1480a4
1 parent 2c4811d
commit d1480a4
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/cli/commands/cluster/health.go b/cli/commands/cluster/health.go
@@ -1,6 +1,7 @@
 package cluster
 
 import (
+	"errors"
 	"fmt"
 	"io"
 
@@ -23,6 +24,9 @@ func HealthCommand(cli *cli.SensuCli) *cobra.Command {
 			if err != nil {
 				return err
 			}
+			if result.Header == nil {
+				return errors.New("result header was empty, etcd cluster may be down")
+			}
 			err = helpers.PrintTitle(helpers.GetChangedStringValueFlag("format", cmd.Flags()), cli.Config.Format(), fmt.Sprintf("Etcd Cluster ID: %x", result.Header.ClusterId), cmd.OutOrStdout())
 			if err != nil {
 				return err