Add sample-app.yaml to argocd chapter

Author: alexmt

Diff for: chapter-09/sample-app.yaml

@@ -0,0 +1,12 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: sample-app
+spec:
+  destination:
+    namespace: default
+    server: https://kubernetes.default.svc
+  project: default
+  source:
+    path: .
+    repoURL: https://github.com/<username>/sample-app-deployment