feat: add dns config to gateway chart

charts/gateway/Chart.yaml

@@ -14,7 +14,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.2.47
+version: 0.2.48
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to

charts/gateway/README.md

@@ -64,6 +64,7 @@ The command removes all the Kubernetes components associated with the chart and
 | apisix.customLuaSharedDicts | list | `[]` | Add custom [lua_shared_dict](https://github.com/openresty/lua-nginx-module#toc88) settings, click [here](https://github.com/apache/apisix-helm-chart/blob/master/charts/apisix/values.yaml#L27-L30) to learn the format of a shared dict |
 | apisix.customizedConfig | object | `{}` | If apisix.enableCustomizedConfig is true, full customized config.yaml. Please note that other settings about APISIX config will be ignored |
 | apisix.deleteURITailSlash | bool | `false` | Delete the '/' at the end of the URI |
+| apisix.dnsConfig | object | `{}` | Custom DNS settings for the APISIX pods |
 | apisix.enableCustomizedConfig | bool | `false` | Enable full customized config.yaml |
 | apisix.enableIPv6 | bool | `true` | Enable nginx IPv6 resolver |
 | apisix.enableServerTokens | bool | `true` | Whether the APISIX version number should be shown in Server header |

charts/gateway/templates/_pod.tpl

@@ -236,6 +236,10 @@ spec:
   dnsPolicy: ClusterFirstWithHostNet
   {{- end }}
   hostNetwork: {{ .Values.apisix.hostNetwork }}
+  {{- with .Values.apisix.dnsConfig }}
+  dnsConfig:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
   initContainers:
     {{- if .Values.etcd.enabled }}
     - name: wait-etcd

charts/gateway/values.yaml

@@ -195,6 +195,9 @@ apisix:
     #   memory: 128Mi
   hostNetwork: false
 
+  # -- Custom DNS settings for the APISIX pods
+  dnsConfig: {}
+
   # -- Node labels for API7 Gateway pod assignment
   nodeSelector: {}
   # -- List of node taints to tolerate