Add a configmap for mariadb ingress controller

The configmap is for mariab ingress controller configuration. It is
to enable the capability of overriding default nginx configurations
in the controller.

Change-Id: I25eb8a237a6f8ad63bde725b1d4f31a928fa7c49
Signed-off-by: Yi Wang <yi.c.wang@intel.com>

mariadb/templates/bin/_mariadb-ingress-controller.sh.tpl

@@ -28,6 +28,7 @@ function start () {
       --election-id=${RELEASE_NAME} \
       --ingress-class=${INGRESS_CLASS} \
       --default-backend-service=${POD_NAMESPACE}/${ERROR_PAGE_SERVICE} \
+      --configmap=${POD_NAMESPACE}/mariadb-ingress-conf \
       --tcp-services-configmap=${POD_NAMESPACE}/mariadb-services-tcp
 }
 

mariadb/templates/configmap-ingress-conf.yaml

@@ -0,0 +1,27 @@
+{{/*
+Copyright 2019 The Openstack-Helm Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/}}
+
+{{- if .Values.manifests.configmap_ingress_conf }}
+{{- $envAll := . }}
+
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: mariadb-ingress-conf
+data:
+{{ toYaml .Values.conf.ingress_conf | indent 2 }}
+{{- end }}

mariadb/values.yaml

@@ -269,6 +269,8 @@ conf:
       - --number-char-cols=1
       - --number-int-cols=1
   ingress: null
+  ingress_conf:
+    worker-processes: "auto"
   backup:
     enabled: true
     base_path: /var/backup
@@ -388,6 +390,7 @@ network_policy:
 manifests:
   configmap_bin: true
   configmap_etc: true
+  configmap_ingress_conf: true
   configmap_services_tcp: true
   deployment_error: true
   deployment_ingress: true