Allow defining unique election leader id

charts/actions-runner-controller/templates/deployment.yaml

@@ -37,7 +37,12 @@ spec:
         {{- $metricsHost := .Values.metrics.proxy.enabled | ternary "127.0.0.1" "0.0.0.0" }}
         {{- $metricsPort := .Values.metrics.proxy.enabled | ternary "8080" .Values.metrics.port }}
         - "--metrics-addr={{ $metricsHost }}:{{ $metricsPort }}"
+        {{- if .Values.controller.enableLeaderElection }}
         - "--enable-leader-election"
+        {{- end }}
+        {{- if .Values.controller.leaderElectionId }}
+        - "--leader-election-id={{ .Values.controller.leaderElectionId }}"
+        {{- end }}
         - "--sync-period={{ .Values.syncPeriod }}"
         - "--docker-image={{ .Values.image.dindSidecarRepositoryAndTag }}"
         - "--runner-image={{ .Values.image.actionsRunnerRepositoryAndTag }}"

charts/actions-runner-controller/values.yaml

@@ -8,6 +8,12 @@ replicaCount: 1
 
 syncPeriod: 10m
 
+controller:
+  enableLeaderElection: true
+  # Specifies the controller id for leader election.
+  # Must be unique if more than one controller installed.
+  #leaderElectionId: "actions-runner-controller"
+
 # The controller tries its best not to repeat the duplicate GitHub API call
 # within this duration.
 # Defaults to syncPeriod - 10s.