Fix leader election defaults for SNO

Current defaults cause pod restarts when apiserver is unavailable
for longer than 60 seconds. The values set in this patch come from
https://github.com/openshift/library-go/blob/master/pkg/config/leaderelection/leaderelection.go.

Author: bertinatto

assets/csi_controller_deployment.yaml

@@ -27,6 +27,11 @@ spec:
           args:
             - "--v=5"
             - "--leader-election=true"
+            # Leader election values are from
+            # https://github.com/openshift/library-go/blob/master/pkg/config/leaderelection/leaderelection.go
+            - "--leader-election-lease-duration=137s"
+            - "--leader-election-renew-deadline=107s"
+            - "--leader-election-retry-period=26s"
           imagePullPolicy: IfNotPresent
           resources:
             requests:

pkg/operator/operator_test.go

@@ -481,8 +481,20 @@ func TestSync(t *testing.T) {
 	const replica1 = 1
 	const replica2 = 2
 	const defaultImage = "csi-snapshot-controller-image"
-	var argsLevel2 = []string{"--v=2", "--leader-election=true"}
-	var argsLevel6 = []string{"--v=6", "--leader-election=true"}
+	var argsLevel2 = []string{
+		"--v=2",
+		"--leader-election=true",
+		"--leader-election-lease-duration=137s",
+		"--leader-election-renew-deadline=107s",
+		"--leader-election-retry-period=26s",
+	}
+	var argsLevel6 = []string{
+		"--v=6",
+		"--leader-election=true",
+		"--leader-election-lease-duration=137s",
+		"--leader-election-renew-deadline=107s",
+		"--leader-election-retry-period=26s",
+	}
 
 	// Override default timeouts to speed up tests
 	customResourceReadyInterval = 10 * time.Millisecond