Try portainer!

apps/portainer/helm-release.yaml

@@ -0,0 +1,17 @@
+apiVersion: helm.toolkit.fluxcd.io/v2beta1
+kind: HelmRelease
+metadata:
+  name: portainer
+  namespace: portainer
+spec:
+  interval: 5m
+  chart:
+    spec:
+      chart: portainer
+      sourceRef:
+        kind: HelmRepository
+        name: portainer
+        namespace: portainer
+      interval: 1m
+  values:
+    replicaCount: 1

apps/portainer/helm-repository.yaml

@@ -0,0 +1,8 @@
+apiVersion: source.toolkit.fluxcd.io/v1beta2
+kind: HelmRepository
+metadata:
+  name: portainer
+  namespace: portainer
+spec:
+  interval: 1m
+  url: https://portainer.github.io/k8s

apps/portainer/kustomization.yaml

@@ -0,0 +1,5 @@
+namespace: portainer
+resources:
+  - namespace.yaml
+  - helm-repository.yaml
+  - helm-release.yaml

apps/portainer/namespace.yaml

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