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dashboard: support multi-replicas election #784

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merged 1 commit into from
Nov 2, 2023
Merged

dashboard: support multi-replicas election #784

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18 changes: 14 additions & 4 deletions cmd/dashboard/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -63,6 +63,10 @@ var (
port uint16
devMode bool
staticDir string

leaderElection bool
leaderElectionNamespace string
leaderElectionLeaseDuration time.Duration
)

func main() {
Expand All @@ -77,6 +81,9 @@ func main() {
cmd.PersistentFlags().Uint16Var(&port, "port", 8088, "port to listen on")
cmd.PersistentFlags().BoolVar(&devMode, "dev", false, "enable dev mode")
cmd.PersistentFlags().StringVar(&staticDir, "static-dir", "", "static files to serve")
cmd.PersistentFlags().BoolVar(&leaderElection, "leader-election", false, "Enables leader election. If leader election is enabled, additional RBAC rules are required. ")
cmd.PersistentFlags().StringVar(&leaderElectionNamespace, "leader-election-namespace", "", "Namespace where the leader election resource lives. Defaults to the pod namespace if not set.")
cmd.PersistentFlags().DurationVar(&leaderElectionLeaseDuration, "leader-election-lease-duration", 15*time.Second, "Duration, in seconds, that non-leader candidates will wait to force acquire leadership. Defaults to 15 seconds.")

goFlag := goflag.CommandLine
klog.InitFlags(goFlag)
Expand Down Expand Up @@ -186,10 +193,13 @@ func getLocalConfig() (*rest.Config, error) {

func newManager(conf *rest.Config) (ctrl.Manager, error) {
return ctrl.NewManager(conf, ctrl.Options{
Scheme: scheme,
Port: 9442,
MetricsBindAddress: "0.0.0.0:8082",
LeaderElectionID: "dashboard.juicefs.com",
Scheme: scheme,
Port: 9442,
MetricsBindAddress: "0.0.0.0:8082",
LeaderElection: leaderElection,
LeaderElectionID: "dashboard.juicefs.com",
LeaderElectionNamespace: leaderElectionNamespace,
LeaseDuration: &leaderElectionLeaseDuration,
NewCache: cache.BuilderWithOptions(cache.Options{
Scheme: scheme,
}),
Expand Down
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