feat(helm): allow configuration of cainjector feature gates

Signed-off-by: Erik Godding Boye <egboye@gmail.com>

deploy/charts/cert-manager/templates/cainjector-deployment.yaml

@@ -73,6 +73,9 @@ spec:
           - --leader-election-retry-period={{ .retryPeriod }}
           {{- end }}
           {{- end }}
+          {{- with .Values.cainjector.featureGates}}
+          - --feature-gates={{ . }}
+          {{- end}}
           {{- with .Values.cainjector.extraArgs }}
           {{- toYaml . | nindent 10 }}
           {{- end }}

deploy/charts/cert-manager/values.yaml

@@ -564,6 +564,10 @@ cainjector:
   # Enable profiling for cainjector
   # - --enable-profiling=true
 
+  # Comma separated list of feature gates that should be enabled on the
+  # cainjector pod.
+  featureGates: ""
+
   resources: {}
     # requests:
     #   cpu: 10m