feat(helm-chart): Allow configuration of ipFamilyPolicy

charts/external-dns/CHANGELOG.md

@@ -24,6 +24,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Added the option to explicitly enable or disable service account token automounting. ([#3983](https://github.com/kubernetes-sigs/external-dns/pull/3983)) [@gilles-gosuin](https://github.com/gilles-gosuin)
 - Added the option to configure revisionHistoryLimit on the K8s Deployment resource. ([#4008](https://github.com/kubernetes-sigs/external-dns/pull/4008)) [@arnisoph](https://github.com/arnisoph)
+- Added the option to configure ipFamilyPolicy and ipFamilies of external-dns Service.  ([#4153](https://github.com/kubernetes-sigs/external-dns/pull/4153)) [@dongjiang1989](https://github.com/dongjiang1989)
 
 ### Changed
 

charts/external-dns/README.md

@@ -121,6 +121,8 @@ If `namespaced` is set to `true`, please ensure that `sources` my only contains
 | secretConfiguration.subPath | string | `nil` | Sub-path for mounting the `Secret`, this can be templated. |
 | securityContext | object | See _values.yaml_ | [Security context](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.22/#securitycontext-v1-core) for the `external-dns` container. |
 | service.annotations | object | `{}` | Service annotations. |
+| service.ipFamilies | list | `[]` | Service IP families. |
+| service.ipFamilyPolicy | string | `nil` | Service IP family policy. |
 | service.port | int | `7979` | Service HTTP port. |
 | serviceAccount.annotations | object | `{}` | Annotations to add to the service account. |
 | serviceAccount.automountServiceAccountToken | string | `nil` | Set this to `false` to [opt out of API credential automounting](https://kubernetes.io/docs/tasks/configure-pod-container/configure-service-account/#opt-out-of-api-credential-automounting) for the `ServiceAccount`. |

charts/external-dns/templates/service.yaml

@@ -10,6 +10,13 @@ metadata:
     {{- toYaml . | nindent 4 }}
   {{- end }}
 spec:
+{{- with .Values.service.ipFamilies }}
+  ipFamilies:
+    {{- toYaml . | nindent 4 }}
+{{- end }}
+{{- with .Values.service.ipFamilyPolicy }}
+  ipFamilyPolicy: {{ . }}
+{{- end }}
   type: ClusterIP
   selector:
     {{- include "external-dns.selectorLabels" . | nindent 4 }}

charts/external-dns/values.schema.json

@@ -50,6 +50,41 @@
           }
         }
       }
+    },
+    "service": {
+      "type": "object",
+      "properties": {
+        "annotations": {
+          "type": "object"
+        },
+        "ipFamilies": {
+          "type": "array",
+          "items": {
+            "type": "string",
+            "enum": [
+              "IPv6",
+              "IPv4"
+            ]
+          }
+        },
+        "ipFamilyPolicy": {
+          "type": [
+            "string",
+            "null"
+          ],
+          "items": {
+            "type": "string",
+            "enum": [
+              "SingleStack",
+              "PreferDualStack",
+              "RequireDualStack"
+            ]
+          }
+        },
+        "port": {
+          "type": "integer"
+        }
+      }
     }
   }
 }

charts/external-dns/values.yaml

@@ -39,6 +39,10 @@ service:
   annotations: {}
   # -- Service HTTP port.
   port: 7979
+  # -- Service IP families.
+  ipFamilies: []
+  # -- (string) Service IP family policy.
+  ipFamilyPolicy:
 
 rbac:
   # -- If `true`, create a `ClusterRole` & `ClusterRoleBinding` with access to the Kubernetes API.