From c7fe20db725c3c8a18d51d3849cf4c422544750b Mon Sep 17 00:00:00 2001
From: "David J. M. Karlsen" <david@davidkarlsen.com>
Date: Tue, 20 Sep 2022 11:41:25 +0200
Subject: [PATCH] Migrate away from configmaps as leader-eletion mechanism
 (#488)

---
 config/rbac/role.yaml                        | 6 ++++++
 controllers/githubactionrunner_controller.go | 1 +
 main.go                                      | 2 +-
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/config/rbac/role.yaml b/config/rbac/role.yaml
index f5b4c359..2ef3eced 100644
--- a/config/rbac/role.yaml
+++ b/config/rbac/role.yaml
@@ -24,6 +24,12 @@ rules:
   - secrets
   verbs:
   - '*'
+- apiGroups:
+  - coordination.k8s.io
+  resources:
+  - leases
+  verbs:
+  - '*'
 - apiGroups:
   - garo.tietoevry.com
   resources:
diff --git a/controllers/githubactionrunner_controller.go b/controllers/githubactionrunner_controller.go
index 48cca993..c00cb025 100644
--- a/controllers/githubactionrunner_controller.go
+++ b/controllers/githubactionrunner_controller.go
@@ -73,6 +73,7 @@ func (r *GithubActionRunnerReconciler) IsValid(obj metav1.Object) (bool, error)
 // +kubebuilder:rbac:groups="",resources=pods,verbs="*"
 // +kubebuilder:rbac:groups="",resources=secrets,verbs="*"
 // +kubebuilder:rbac:groups="",resources=events,verbs=create;patch
+// +kubebuilder:rbac:groups=coordination.k8s.io,resources=leases,verbs="*"
 
 // Reconcile is the main loop implementing the controller action
 func (r *GithubActionRunnerReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
diff --git a/main.go b/main.go
index 56828afd..fd72354f 100644
--- a/main.go
+++ b/main.go
@@ -72,7 +72,7 @@ func main() {
 		Namespace:                  namespace,
 		LeaderElection:             enableLeaderElection,
 		LeaderElectionID:           "4ef9cd91.tietoevry.com",
-		LeaderElectionResourceLock: "configmaps",
+		LeaderElectionResourceLock: "configmapsleases",
 	}
 	if strings.Contains(namespace, ",") {
 		options.Namespace = ""