feat(node-local-dns): add option to override coreDNS config

deliveryhero · Aug 27, 2023 · ee60c3e · ee60c3e
1 parent a5b8976
commit ee60c3e
Show file tree

Hide file tree

Showing 3 changed files with 14 additions and 35 deletions.
diff --git a/stable/node-local-dns/README.md b/stable/node-local-dns/README.md
@@ -12,44 +12,19 @@ Further documentation is [here](https://kubernetes.io/docs/tasks/administer-clus
 
 This helm chart works for both kube-proxy setups (iptables or ipvs).
 
-## How to install this chart
-
-Add Delivery Hero public chart repo:
-
-```console
-helm repo add deliveryhero https://charts.deliveryhero.io/
-```
-
-A simple install with default values:
-
-```console
-helm install deliveryhero/node-local-dns
-```
-
-To install the chart with the release name `my-release`:
-
-```console
-helm install my-release deliveryhero/node-local-dns
-```
-
-To install with some set values:
-
-```console
-helm install my-release deliveryhero/node-local-dns --set values_key1=value1 --set values_key2=value2
-```
-
-To install with custom values file:
+## Maintainers
 
-```console
-helm install my-release deliveryhero/node-local-dns -f values.yaml
-```
+| Name | Email | Url |
+| ---- | ------ | --- |
+| gabrieladt | <no-reply@deliveryhero.com> |  |
 
 ## Values
 
 | Key | Type | Default | Description |
 |-----|------|---------|-------------|
 | affinity | object | `{}` |  |
 | config.commProtocol | string | `"force_tcp"` |  |
+| config.customConfig | string | `nil` |  |
 | config.dnsDomain | string | `"cluster.local"` |  |
 | config.dnsServer | string | `"172.20.0.10"` |  |
 | config.healthPort | int | `8080` |  |
@@ -80,8 +55,5 @@ helm install my-release deliveryhero/node-local-dns -f values.yaml
 | serviceMonitor.enabled | bool | `false` |  |
 | serviceMonitor.labels | object | `{}` |  |
 
-## Maintainers
-
-| Name | Email | Url |
-| ---- | ------ | --- |
-| gabrieladt | <no-reply@deliveryhero.com> |  |
+----------------------------------------------
+Autogenerated from chart metadata using [helm-docs v1.11.0](https://github.com/norwoodj/helm-docs/releases/v1.11.0)
diff --git a/stable/node-local-dns/templates/configmap.yaml b/stable/node-local-dns/templates/configmap.yaml
@@ -8,6 +8,9 @@ metadata:
     {{- include "node-local-dns.labels" . | nindent 4 }}
 data:
   Corefile: |
+    {{ if .Values.config.customConfig }}
+      {{ tpl .Values.config.customConfig . }}
+    {{ else }}
     {{ .Values.config.dnsDomain }}:53 {
         errors
         cache {
@@ -54,3 +57,4 @@ data:
         forward . __PILLAR__UPSTREAM__SERVERS__
         prometheus :9253
         }
+    {{ end }}
diff --git a/stable/node-local-dns/values.yaml b/stable/node-local-dns/values.yaml
@@ -25,6 +25,9 @@ config:
 
   skipTeardown: true
 
+  # Overrides the generated configuration with specified one.
+  customConfig: ""
+
 nameOverride: ""
 fullnameOverride: ""