Use kustomize for apps layer

apps/Makefile

@@ -3,14 +3,10 @@
 
 KUBECONFIG = ../infra/kube_config.yaml
 
-default: init apply
-
-init:
-	kubectl create namespace argocd --dry-run=client -o yaml | kubectl apply -f -
-	kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml
+default: apply
 
 apply:
-	kubectl --namespace argocd apply --filename .
+	kubectl apply --kustomize .
 
 delete:
-	kubectl --namespace argocd delete --filename .
+	kubectl delete --kustomize .

apps/kustomization.yaml

@@ -0,0 +1,18 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+# Prerequisites
+- resources/namespace.yaml
+- github.com/argoproj/argo-cd//manifests/cluster-install?ref=v2.0.2
+# System
+- resources/cert-manager.yaml
+- resources/longhorn.yaml
+- resources/metallb.yaml
+- resources/nginx.yaml
+- resources/prometheus.yaml
+- resources/vault.yaml
+# Applications
+- resources/gitea.yaml
+
+namespace: argocd

apps/resources/namespace.yaml

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