Add whoami as a second real app (docs/08 hands-on exercise)

apps/whoami.yaml

@@ -0,0 +1,28 @@
+# This is an Argo CD "Application" — see apps/demo.yaml for the full
+# explanation of what this resource is and why you never apply it by hand.
+# This one is the docs/08-adding-new-apps.md hands-on exercise: a second,
+# independent app added the normal way, proving the app-of-apps pattern
+# works for more than the pre-installed apps.
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: whoami
+  namespace: argocd
+spec:
+  project: default
+
+  source:
+    repoURL: https://tea.ahmza.com/ahmza/k8s-starter-pack.git
+    targetRevision: main
+    path: apps/whoami
+
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: whoami
+
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true