Document and values.yaml updates for leader election customization

Follow-up for #806

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

@@ -37,11 +37,11 @@ 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 }}
+        {{- if .Values.enableLeaderElection }}
         - "--enable-leader-election"
         {{- end }}
-        {{- if .Values.controller.leaderElectionId }}
-        - "--leader-election-id={{ .Values.controller.leaderElectionId }}"
+        {{- if .Values.leaderElectionId }}
+        - "--leader-election-id={{ .Values.leaderElectionId }}"
         {{- end }}
         - "--sync-period={{ .Values.syncPeriod }}"
         - "--docker-image={{ .Values.image.dindSidecarRepositoryAndTag }}"

charts/actions-runner-controller/values.yaml

@@ -8,11 +8,10 @@ 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"
+enableLeaderElection: true
+# Specifies the controller id for leader election.
+# Must be unique if more than one controller installed onto the same namespace.
+#leaderElectionId: "actions-runner-controller"
 
 # The controller tries its best not to repeat the duplicate GitHub API call
 # within this duration.