[bitnami/external-dns] Major version. Adapt Chart to apiVersion: v2 (#4284)

* [bitnami/external-dns] Major version. Adapt Chart to apiVersion: v2

* [bitnami/external-dns] Update components versions

Signed-off-by: Bitnami Containers <containers@bitnami.com>

Co-authored-by: Bitnami Containers <containers@bitnami.com>

bitnami/external-dns/Chart.yaml

@@ -1,21 +1,21 @@
-apiVersion: v1
-name: external-dns
-version: 3.7.0
+annotations:
+  category: DeveloperTools
+apiVersion: v2
 appVersion: 0.7.4
 description: ExternalDNS is a Kubernetes addon that configures public DNS servers with information about exposed Kubernetes services to make them discoverable.
+engine: gotpl
+home: https://github.com/bitnami/charts/tree/master/bitnami/external-dns
+icon: https://bitnami.com/assets/stacks/external-dns/img/external-dns-stack-110x117.png
 keywords:
   - external-dns
   - network
   - dns
-home: https://github.com/bitnami/charts/tree/master/bitnami/external-dns
+maintainers:
+  - email: containers@bitnami.com
+    name: Bitnami
+name: external-dns
 sources:
   - https://github.com/kubernetes-sigs/external-dns
   - https://github.com/bitnami/bitnami-docker-external-dns
   - https://github.com/kubernetes-sigs/external-dns
-maintainers:
-  - name: Bitnami
-    email: containers@bitnami.com
-engine: gotpl
-icon: https://bitnami.com/assets/stacks/external-dns/img/external-dns-stack-110x117.png
-annotations:
-  category: DeveloperTools
+version: 4.0.0

bitnami/external-dns/README.md

@@ -18,7 +18,7 @@ Bitnami charts can be used with [Kubeapps](https://kubeapps.com/) for deployment
 ## Prerequisites
 
 - Kubernetes 1.12+
-- Helm 2.12+ or Helm 3.0-beta3+
+- Helm 3.0-beta3+
 
 ## Installing the Chart
 
@@ -275,6 +275,27 @@ Find more information about how to deal with common errors related to Bitnami’
 
 ## Upgrading
 
+### To 4.0.0
+
+[On November 13, 2020, Helm v2 support was formally finished](https://github.com/helm/charts#status-of-the-project), this major version is the result of the required changes applied to the Helm Chart to be able to incorporate the different features added in Helm v3 and to be consistent with the Helm project itself regarding the Helm v2 EOL.
+
+**What changes were introduced in this major version?**
+
+- Previous versions of this Helm Chart use `apiVersion: v1` (installable by both Helm 2 and 3), this Helm Chart was updated to `apiVersion: v2` (installable by Helm 3 only). [Here](https://helm.sh/docs/topics/charts/#the-apiversion-field) you can find more information about the `apiVersion` field.
+- The different fields present in the *Chart.yaml* file has been ordered alphabetically in a homogeneous way for all the Bitnami Helm Charts
+
+**Considerations when upgrading to this version**
+
+- If you want to upgrade to this version from a previous one installed with Helm v3, you shouldn't face any issues
+- If you want to upgrade to this version using Helm v2, this scenario is not supported as this version doesn't support Helm v2 anymore
+- If you installed the previous version with Helm v2 and wants to upgrade to this version with Helm v3, please refer to the [official Helm documentation](https://helm.sh/docs/topics/v2_v3_migration/#migration-use-cases) about migrating from Helm v2 to v3
+
+**Useful links**
+
+- https://docs.bitnami.com/tutorials/resolve-helm2-helm3-post-migration-issues/
+- https://helm.sh/docs/topics/v2_v3_migration/
+- https://helm.sh/blog/migrate-from-helm-v2-to-helm-v3/
+
 ### To 3.0.0
 
 - The parameters below are renamed:

bitnami/external-dns/values-production.yaml

@@ -13,7 +13,7 @@
 image:
   registry: docker.io
   repository: bitnami/external-dns
-  tag: 0.7.4-debian-10-r29
+  tag: 0.7.4-debian-10-r41
   ## Specify a imagePullPolicy
   ## Defaults to 'Always' if image tag is 'latest', else set to 'IfNotPresent'
   ## ref: http://kubernetes.io/docs/user-guide/images/#pre-pulling-images

bitnami/external-dns/values.yaml

@@ -13,7 +13,7 @@
 image:
   registry: docker.io
   repository: bitnami/external-dns
-  tag: 0.7.4-debian-10-r29
+  tag: 0.7.4-debian-10-r41
   ## Specify a imagePullPolicy
   ## Defaults to 'Always' if image tag is 'latest', else set to 'IfNotPresent'
   ## ref: http://kubernetes.io/docs/user-guide/images/#pre-pulling-images