fix: ingress configmap field (#197)

Signed-off-by: Ashing Zheng <[email protected]>

Author: ronething

charts/ingress-controller/templates/configmap.yaml

@@ -9,9 +9,9 @@ data:
     controller_name: {{ .Values.config.controllerName | default "apisix.apache.org/apisix-ingress-controller" }}
     leader_election_id: {{ .Values.config.leaderElection.id | default "apisix-ingress-controller-leader" }}
     leader_election:
-      leaseDuration: {{ .Values.config.leaderElection.leaseDuration | default "15s" }}
-      renewDeadline: {{ .Values.config.leaderElection.renewDeadline | default "10s" }}
-      retryPeriod: {{ .Values.config.leaderElection.retryPeriod | default "2s" }}
+      lease_duration: {{ .Values.config.leaderElection.leaseDuration | default "15s" }}
+      renew_deadline: {{ .Values.config.leaderElection.renewDeadline | default "10s" }}
+      retry_period: {{ .Values.config.leaderElection.retryPeriod | default "2s" }}
       disable: {{ .Values.config.leaderElection.disable | default false }}
     metrics_addr: {{ .Values.config.metricsAddr | default ":8080" }}
     enable_http2: {{ .Values.config.enableHTTP2 | default false }}