Upgrade to v1 CRD

Signed-off-by: Philip Laine <philip.laine@gmail.com>
Signed-off-by: Kingdon Barrett <yebyen@gmail.com>

crd-v1-testing/README.md

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+# Verification in new cluster
+
+Steps to verify CRD V1 functionality in a 1.20 cluster.
+
+Create new kind cluster with crd/v1beta1 disabled.
+```
+kind create cluster --config ./kind-config.yaml
+```
+
+Apply local CRDs.
+```
+kubectl apply -f chart/helm-operator/crds/helmrelease.yaml
+```
+
+Install Helm Operator without the charts CRDs.
+```
+helm repo add fluxcd https://charts.fluxcd.io
+kubectl create ns flux
+helm upgrade --skip-crds -i helm-operator fluxcd/helm-operator --namespace flux --set helm.versions=v3
+```
+
+Apply podinfo helm chart, and verify it is working.
+```
+kubectl apply -f crd-v1-testing/podinfo-helmrelease.yaml
+kubectl -n default get pods
+kubectl -n default port-forward pod/<POD_NAME>
+curl http://localhost:9898/
+```
+
+# Verification in upgraded cluster
+
+Create a new cluster with v1beta1 CRD enabled.
+```
+kind create cluster`
+```
+
+Install Helm Operator.
+```
+helm repo add fluxcd https://charts.fluxcd.io
+kubectl create ns flux
+helm upgrade -i helm-operator fluxcd/helm-operator --namespace flux --set helm.versions=v3
+```
+
+Install chart museum.
+```
+helm repo add stable https://charts.helm.sh/stable
+helm upgrade -i chartmuseum stable/chartmuseum -f crd-v1-testing/chart-museum-values.yaml
+kubectl -n default get pods
+```
+
+Build and upload helm package.
+```
+kubectl -n default port-forward pod/<POD_NAME> 8080:8080
+helm plugin install https://github.com/chartmuseum/helm-push.git
+helm push crd-v1-testing/crd-test chartmuseum
+```
+
+Apply crd-test helm release
+```
+kubectl apply -f crd-v1-testing/crd-test-helmrelease.yaml
+```
+
+Exec into the docker container running the node.
+```
+docker ps
+docker exec -i <CONTAINER_ID> bash
+```
+
+Get the kubeadm config.
+```
+kubeadm config view > kubeadm-config.yaml
+```
+
+Update the config with runtime config.
+```
+extraArgs:
+  authorization-mode: Node,RBAC
+  runtime-config: ""
+```
+
+```
+extraArgs:
+  authorization-mode: Node,RBAC
+  runtime-config: "apiextensions.k8s.io/v1beta1=false"
+```
+
+Upgrade the cluster with the new settings.
+```
+kubeadm upgrade diff --config kubeadm-config.yaml
+kubeadm upgrade apply --config kubeadm-config.yaml --ignore-preflight-errors all --force --v=5
+```

crd-v1-testing/chart-museum-values.yaml

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+env:
+  open:
+    DISABLE_API: false

crd-v1-testing/crd-test-helmrelease.yaml

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+apiVersion: helm.fluxcd.io/v1
+kind: HelmRelease
+metadata:
+  name: crd-test
+  namespace: default
+spec:
+  chart:
+    repository: http://chartmuseum-chartmuseum.default.svc.cluster.local:8080
+    name: crd-test
+    version: 0.1.0

crd-v1-testing/crd-test/.helmignore

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+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

crd-v1-testing/crd-test/Chart.yaml

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+apiVersion: v2
+name: crd-test
+description: A Helm chart for Kubernetes
+type: application
+version: 0.1.0
+appVersion: "1.16.0"

crd-v1-testing/crd-test/crds/crd.yaml

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+apiVersion: apiextensions.k8s.io/v1beta1
+kind: CustomResourceDefinition
+metadata:
+  name: crddirs.crdtest.example.com
+spec:
+  group: crdtest.example.com
+  versions:
+  - name: v1
+    served: true
+    storage: true
+  version: v1
+  scope: Namespaced
+  names:
+    plural: crddirs
+    singular: crddir
+    kind: CrdDir
+    shortNames:
+    - t

crd-v1-testing/crd-test/templates/crd.yaml

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+apiVersion: apiextensions.k8s.io/v1beta1
+kind: CustomResourceDefinition
+metadata:
+  name: templatedirs.crdtest.example.com
+spec:
+  group: crdtest.example.com
+  versions:
+  - name: v1
+    served: true
+    storage: true
+  version: v1
+  scope: Namespaced
+  names:
+    plural: templatedirs
+    singular: templatedir
+    kind: TemplateDir
+    shortNames:
+    - t

crd-v1-testing/crd-test/values.yaml

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+nameOverride: ""
+fullnameOverride: ""

crd-v1-testing/k3d-default.yaml

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+---
+apiVersion: k3d.io/v1alpha2
+kind: Simple
+name: k3s-default
+servers: 1
+agents: 0
+image: docker.io/rancher/k3s:v1.20.4-k3s1

crd-v1-testing/kind-config.yaml

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+kind: Cluster
+apiVersion: kind.x-k8s.io/v1alpha4
+nodes:
+- role: control-plane
+  kubeadmConfigPatches:
+  - |
+    apiVersion: kubeadm.k8s.io/v1beta2
+    kind: ClusterConfiguration
+    kubernetesVersion: v1.20.0
+    apiServer:
+      extraArgs:
+        #runtime-config: "apiextensions.k8s.io/v1beta1=false"

crd-v1-testing/podinfo-helmrelease.yaml

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+apiVersion: helm.fluxcd.io/v1
+kind: HelmRelease
+metadata:
+  name: podinfo
+  namespace: default
+spec:
+  chart:
+    repository: https://stefanprodan.github.io/podinfo
+    name: podinfo
+    version: 3.2.0