Installer: introduce namespacePrefix, fix certificates, split matrix installation using pre-install hook
diff --git a/charts/certificate-issuer/templates/gandi-webhook-secret-reader.yaml b/charts/certificate-issuer/templates/gandi-webhook-secret-reader.yaml
index b3d1491..88cf405 100644
--- a/charts/certificate-issuer/templates/gandi-webhook-secret-reader.yaml
+++ b/charts/certificate-issuer/templates/gandi-webhook-secret-reader.yaml
@@ -1,7 +1,7 @@
 apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRole
 metadata:
-  name: cert-manager-gandi-webhook-secret-reader
+  name: {{ .Release.Namespace }}-cert-manager-gandi-webhook-secret-reader  # TODO(giolekva): make namespace part configurable
   namespace: {{ .Release.Namespace }}
 rules:
 - apiGroups:
@@ -14,12 +14,12 @@
 apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
-  name: cert-manager-gandi-webhook-secret-reader
+  name: {{ .Release.Namespace }}-cert-manager-gandi-webhook-secret-reader
   namespace: {{ .Release.Namespace }}
 roleRef:
   apiGroup: rbac.authorization.k8s.io
   kind: ClusterRole
-  name: cert-manager-gandi-webhook-secret-reader
+  name: {{ .Release.Namespace }}-cert-manager-gandi-webhook-secret-reader
 subjects:
 - kind: ServiceAccount
   name: {{ .Values.certManager.gandiWebhookSecretReader }}