feature: allow dnsConfig parameter overriding in deployment thanks to…

… pod template spec
traefik · Apr 13, 2023 · 0365a17 · 0365a17
1 parent c4c4987
commit 0365a17
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diff --git a/traefik/templates/_podtemplate.tpl b/traefik/templates/_podtemplate.tpl
@@ -27,6 +27,21 @@
       {{- with .Values.deployment.dnsPolicy }}
       dnsPolicy: {{ . }}
       {{- end }}
+      {{- with .Values.deployment.dnsConfig }}
+      dnsConfig:
+        {{- if .searches }}
+        searches:
+          {{- toYaml .searches | nindent 10 }}
+        {{- end }}
+        {{- if .nameservers }}
+        nameservers:
+          {{- toYaml .nameservers | nindent 10 }}
+        {{- end }}
+        {{- if .options }}
+        options:
+          {{- toYaml .options | nindent 10 }}
+        {{- end }}
+      {{- end }}
       {{- with .Values.deployment.initContainers }}
       initContainers:
       {{- toYaml . | nindent 6 }}

diff --git a/traefik/tests/pod-config_test.yaml b/traefik/tests/pod-config_test.yaml
@@ -523,3 +523,49 @@ tests:
             hostPort: 1234
             name: websecure-http3
             protocol: UDP
+  - it: should have a custom list of dns nameservers
+    set:
+      deployment:
+        dnsConfig:
+          nameservers:
+            - 1.1.1.1
+            - 2001:db8:30::a
+    asserts:
+      - equal:
+          path: spec.template.spec.dnsConfig.nameservers[0]
+          value: "1.1.1.1"
+      - equal:
+          path: spec.template.spec.dnsConfig.nameservers[1]
+          value: "2001:db8:30::a"
+  - it: should have a list of dns search domain
+    set:
+      deployment:
+        dnsConfig:
+          searches:
+            - ns1.svc.cluster-domain.example
+            - my.dns.search.suffix
+    asserts:
+      - equal:
+          path: spec.template.spec.dnsConfig.searches[0]
+          value: "ns1.svc.cluster-domain.example"
+      - equal:
+          path: spec.template.spec.dnsConfig.searches[1]
+          value: "my.dns.search.suffix"
+  - it: should have a custom dns options
+    set:
+      deployment:
+        dnsConfig:
+          options:
+            - name: ndots
+              value: 2
+            - name: edns0
+    asserts:
+      - equal:
+          path: spec.template.spec.dnsConfig.options[0].name
+          value: "ndots"
+      - equal:
+          path: spec.template.spec.dnsConfig.options[0].value
+          value: 2
+      - equal:
+          path: spec.template.spec.dnsConfig.options[1].name
+          value: "edns0"
diff --git a/traefik/values.yaml b/traefik/values.yaml
@@ -82,6 +82,16 @@ deployment:
   shareProcessNamespace: false
   # Custom pod DNS policy. Apply if `hostNetwork: true`
   # dnsPolicy: ClusterFirstWithHostNet
+  dnsConfig: {}
+    # nameservers:
+    #   - 192.0.2.1 # this is an example
+    # searches:
+    #   - ns1.svc.cluster-domain.example
+    #   - my.dns.search.suffix
+    # options:
+    #   - name: ndots
+    #     value: "2"
+    #   - name: edns0
   # Additional imagePullSecrets
   imagePullSecrets: []
     # - name: myRegistryKeySecretName