ops(k8s): add coredns

k8s/system/coredns/application.yaml

@@ -0,0 +1,19 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: coredns
+  namespace: argocd
+spec:
+  project: system
+  source:
+    repoURL: 'https://coredns.github.io/helm'
+    targetRevision: 1.29.x
+    helm:
+      valuesObject:
+    chart: coredns
+  destination:
+    namespace: kube-system
+    name: in-cluster
+  syncPolicy:
+    syncOptions:
+      - ServerSideApply=true

k8s/system/coredns/kustomization.yaml

@@ -0,0 +1,4 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+- application.yaml

k8s/system/kustomization.yaml

@@ -4,3 +4,4 @@ resources:
 - project.yaml
 - flannel
 - argocd
+- coredns