feat(charts): add new flag enable leader for cert-manager (#5863)

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deploy/charts/external-secrets/templates/cert-controller-deployment.yaml

@@ -89,6 +89,9 @@ spec:
           {{- if .Values.enableHTTP2 }}
           - --enable-http2=true
           {{- end }}
+          {{- if .Values.leaderElect }}
+          - --enable-leader-election=true
+          {{- end }}
           {{- range $key, $value := .Values.certController.extraArgs }}
             {{- if $value }}
           - --{{ $key }}={{ $value }}

deploy/charts/external-secrets/tests/cert_controller_test.yaml

@@ -373,3 +373,19 @@ tests:
             - ip: "192.168.1.100"
               hostnames:
                 - "cert.example.com"
+  - it: should not have enable-leader-election flag by default
+    templates:
+      - cert-controller-deployment.yaml
+    asserts:
+      - notContains:
+          path: spec.template.spec.containers[0].args
+          content: "--enable-leader-election=true"
+  - it: should have enable-leader-election flag when leaderElect is true
+    set:
+      leaderElect: true
+    templates:
+      - cert-controller-deployment.yaml
+    asserts:
+      - contains:
+          path: spec.template.spec.containers[0].args
+          content: "--enable-leader-election=true"