Add addon provider to helm chart

Author: alexander-demicev

hack/charts/cluster-api-operator/templates/addon-conditions.yaml

@@ -0,0 +1,29 @@
+{{- if .Values.addon }}
+# Deploy core components if not specified
+{{- if not .Values.core }}
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  annotations:
+    "helm.sh/hook": "post-install"
+    "helm.sh/hook-weight": "1"
+  name: capi-system
+---
+apiVersion: operator.cluster.x-k8s.io/v1alpha2
+kind: CoreProvider
+metadata:
+  name: cluster-api
+  namespace: capi-system
+  annotations:
+    "helm.sh/hook": "post-install"
+    "helm.sh/hook-weight": "2"
+{{- if .Values.secretName }}
+spec:
+  secretName: {{ .Values.secretName }}
+{{- if .Values.secretNamespace }}
+  secretNamespace: {{ .Values.secretNamespace }}
+{{- end }}
+{{- end }}
+{{- end }}
+{{- end }}

hack/charts/cluster-api-operator/templates/addon.yaml

@@ -0,0 +1,54 @@
+# Addon provider
+{{- if .Values.addon }}
+{{- $addons := split ";" .Values.addon }}
+{{- $addonNamespace := "" }}
+{{- $addonName := "" }}
+{{- $addonVersion := "" }}
+{{- range $addon := $addons }}
+{{- $addonArgs := split ":" $addon }}
+{{- $addonArgsLen :=  len $addonArgs }}
+{{-  if eq $addonArgsLen 3 }}
+  {{- $addonNamespace = $addonArgs._0 }}
+  {{- $addonName = $addonArgs._1 }}
+  {{- $addonVersion = $addonArgs._2 }}
+{{-  else if eq $addonArgsLen 2 }}
+  {{- $addonNamespace = print $addonArgs._0 "-addon-system" }}
+  {{- $addonName = $addonArgs._0 }}
+  {{- $addonVersion = $addonArgs._1 }}
+{{-  else if eq $addonArgsLen 1 }}
+  {{- $addonNamespace = print $addonArgs._0 "-addon-system" }}
+  {{- $addonName = $addonArgs._0 }}
+{{- else }}
+  {{- fail "addon provider argument should have the following format helm:v1.0.0 or mynamespace:helm:v1.0.0" }}
+{{- end }}
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  annotations:
+    "helm.sh/hook": "post-install"
+    "helm.sh/hook-weight": "1"
+  name: {{ $addonNamespace }}
+---
+apiVersion: operator.cluster.x-k8s.io/v1alpha2
+kind: AddonProvider
+metadata:
+  name: {{ $addonName }}
+  namespace: {{ $addonNamespace }}
+  annotations:
+    "helm.sh/hook": "post-install"
+    "helm.sh/hook-weight": "2"
+{{- if or $addonVersion $.Values.secretName }}
+spec:
+{{- end}}
+{{- if $addonVersion }}
+  version: {{ $addonVersion }}
+{{- end }}
+{{- if $.Values.secretName }}
+  secretName: {{ $.Values.secretName }}
+{{- end }}
+{{- if $.Values.secretNamespace }}
+  secretNamespace: {{ $.Values.secretNamespace }}
+{{- end }}
+{{- end }}
+{{- end }}

hack/charts/cluster-api-operator/values.yaml

@@ -11,6 +11,7 @@ core: ""
 bootstrap: ""
 controlPlane: ""
 infrastructure: ""
+addon: ""
 # ---
 # Common configuration secret options
 configSecret: {}