Add sync wave example

sync-wave/manifests.yaml

@@ -0,0 +1,120 @@
+---
+apiVersion: batch/v1
+kind: Job
+metadata:
+  generateName: upgrade-sql-schema
+  annotations:
+    argocd.argoproj.io/hook: PreSync
+spec:
+  template:
+    spec:
+      containers:
+        - name: upgrade-sql-schema
+          image: quay.io/acend/example-web-go
+          command: ["sleep", "5"]
+      restartPolicy: Never
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: backend
+spec:
+  replicas: 1
+  revisionHistoryLimit: 3
+  selector:
+    matchLabels:
+      app: backend
+  template:
+    metadata:
+      labels:
+        app: backend
+    spec:
+      containers:
+      - image: quay.io/acend/example-web-python
+        name: backend
+        ports:
+        - containerPort: 5000
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: backend
+spec:
+  selector:
+    app: backend
+  ports:
+    - protocol: TCP
+      port: 5000
+      targetPort: 5000
+---
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: maintenance-page-up
+  annotations:
+    argocd.argoproj.io/hook: Sync
+    argocd.argoproj.io/hook-delete-policy: BeforeHookCreation
+    argocd.argoproj.io/sync-wave: "1"
+spec:
+  template:
+    spec:
+      containers:
+        - name: page-up
+          image: quay.io/acend/example-web-go
+          command: ["sleep", "2"]
+      restartPolicy: Never
+  backoffLimit: 0
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: frontend
+  annotations:
+    argocd.argoproj.io/sync-wave: "2"
+spec:
+  replicas: 1
+  revisionHistoryLimit: 3
+  selector:
+    matchLabels:
+      app: frontend
+  template:
+    metadata:
+      labels:
+        app: frontend
+    spec:
+      containers:
+      - image: quay.io/acend/example-web-python
+        name: frontend
+        ports:
+        - containerPort: 5000
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: frontend
+  annotations:
+    argocd.argoproj.io/sync-wave: "2"
+spec:
+  selector:
+    app: frontend
+  ports:
+    - protocol: TCP
+      port: 5000
+      targetPort: 5000
+---
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: maintenance-page-up
+  annotations:
+    argocd.argoproj.io/hook: Sync
+    argocd.argoproj.io/hook-delete-policy: BeforeHookCreation
+    argocd.argoproj.io/sync-wave: "3"
+spec:
+  template:
+    spec:
+      containers:
+        - name: page-down
+          image: quay.io/acend/example-web-go
+          command: ["sleep", "2"]
+      restartPolicy: Never