feat(relay-proxy-helm): add ability to deploy extra manifests (#2198)

Signed-off-by: yafanasiev <[email protected]>
Co-authored-by: Thomas Poignant <[email protected]>

cmd/relayproxy/helm-charts/relay-proxy/templates/_helpers.tpl

@@ -60,3 +60,17 @@ Create the name of the service account to use
 {{- default "default" .Values.serviceAccount.name }}
 {{- end }}
 {{- end }}
+
+{{/*
+Renders a value that contains template
+Usage:
+{{ include "common.tplvalues.render" ( dict "value" .Values.path.to.the.Value "context" $ ) }}
+*/}}
+{{- define "relay-proxy.render" -}}
+{{- $value := typeIs "string" .value | ternary .value (.value | toYaml) }}
+{{- if contains "{{" (toJson .value) }}
+ {{- tpl $value .context }}
+{{- else }}
+ {{- $value }}
+{{- end }}
+{{- end -}}

cmd/relayproxy/helm-charts/relay-proxy/templates/deployment.yaml

@@ -13,10 +13,11 @@ spec:
  {{- include "relay-proxy.selectorLabels" . | nindent 6 }}
  template:
  metadata:
- {{- with .Values.podAnnotations }}
  annotations:
- {{- toYaml . | nindent 8 }}
- {{- end }}
+ checksum/configmap: {{ include (print $.Template.BasePath "/configmap.yaml") . | sha256sum }}
+ {{- if .Values.podAnnotations }}
+ {{- include "relay-proxy.render" (dict "value" .Values.podAnnotations "context" $) | nindent 8 }}
+ {{- end }}
  labels:
  {{- include "relay-proxy.selectorLabels" . | nindent 8 }}
  spec:

cmd/relayproxy/helm-charts/relay-proxy/templates/extra-manifests.yaml

@@ -0,0 +1,4 @@
+{{- range .Values.extraManifests }}
+---
+{{ include "relay-proxy.render" (dict "value" . "context" $) }}
+{{- end }}

cmd/relayproxy/helm-charts/relay-proxy/values.yaml

@@ -120,3 +120,29 @@ tolerations: []
 
 # -- Affinity settings for pod assignment to nodes
 affinity: {}
+
+# -- Array of extra objects to deploy with the release (evaluated as a template)
+extraManifests: []
+# - kind: Role
+# apiVersion: rbac.authorization.k8s.io/v1
+# metadata:
+# name: feature-flags-relay-proxy
+# namespace: "{{ .Release.Namespace }}"
+# rules:
+# - apiGroups: [""]
+# resources:
+# - configmaps
+# verbs:
+# - get
+# - kind: RoleBinding
+# apiVersion: rbac.authorization.k8s.io/v1
+# metadata:
+# name: feature-flags-relay-proxy
+# namespace: "{{ .Release.Namespace }}"
+# subjects:
+# - kind: ServiceAccount
+# name: feature-flags-relay-proxy
+# roleRef:
+# kind: Role
+# name: feature-flags-relay-proxy
+# apiGroup: ""