add clusters/app/namespace.yaml

clusters/app/helmrepo.yaml

@@ -2,6 +2,7 @@ apiVersion: source.toolkit.fluxcd.io/v1beta2
 kind: HelmRepository
 metadata:
   name: stable
+  namespace: monitoring
 spec:
   interval: 1m
   url: https://charts.onwalk.net/

clusters/app/kustomization.yaml

@@ -2,5 +2,6 @@ apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 namespace: monitoring
 resources:
+  - namespace.yaml
   - helmrepo.yaml
   - observability-agent.yaml

clusters/app/namespace.yaml

@@ -0,0 +1,4 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: monitoring