apiVersion: v1
kind: Namespace
metadata:
  creationTimestamp: null
  name: hello-world
  namespace: hello-world
spec: {}
status: {}

---

apiVersion: argoproj.io/v1alpha1
kind: Rollout
metadata:
  name: hello-world-bluegreen
  namespace: hello-world
spec:
  replicas: 2
  revisionHistoryLimit: 2
  selector:
    matchLabels:
      app: rollout-bluegreen
  template:
    metadata:
      labels:
        app: rollout-bluegreen
    spec:
      containers:
        - name: hello-world
          image: docker.io/waylonwalker/learn-rollouts:v1
          ports:
            - containerPort: 5000
  strategy:
    blueGreen:
      # activeService specifies the service to update with the new template hash at time of promotion.
      # This field is mandatory for the blueGreen update strategy.
      activeService: hello-world-active
      # previewService specifies the service to update with the new template hash before promotion.
      # This allows the preview stack to be reachable without serving production traffic.
      # This field is optional.
      previewService: hello-world-preview
      # autoPromotionEnabled disables automated promotion of the new stack by pausing the rollout
      # immediately before the promotion. If omitted, the default behavior is to promote the new
      # stack as soon as the ReplicaSet are completely ready/available.
      # Rollouts can be resumed using: `kubectl argo rollouts promote ROLLOUT`
      autoPromotionEnabled: false

---
apiVersion: v1
kind: Service
metadata:
  name: hello-world-active
  namespace: hello-world
spec:
  ports:
    - name: "5000"
      port: 5000
      targetPort: 5000

---
apiVersion: v1
kind: Service
metadata:
  name: hello-world-preview
  namespace: hello-world
spec:
  # selector:
  #   app: hello-world
  ports:
    - name: "5000"
      port: 5000
      targetPort: 5000

# blue-green deployment replaces traditional deployment
# ---
#
# apiVersion: apps/v1
# kind: Deployment
# metadata:
#   labels:
#     app: hello-world
#   name: hello-world-deployment
#   namespace: hello-world
# spec:
#   replicas: 1
#   selector:
#     matchLabels:
#       app: hello-world
#   template:
#     metadata:
#       labels:
#         app: hello-world
#     spec:
#       containers:
#         - image: docker.io/waylonwalker/learn-rollouts:v2
#           name: hello-world
#           ports:
#             - containerPort: 5000
#


# outside of kind you might prefer ingress
# ---
#
# apiVersion: networking.k8s.io/v1
# kind: Ingress
# metadata:
#   labels:
#     service: hello-world
#   name: hello-world-ingress
#   namespace: hello-world
# spec:
#   rules:
#     - http:
#         paths:
#           - backend:
#               service:
#                 name: hello-world-active
#                 port:
#                   number: 5000
#             path: /active
#             pathType: Prefix
#
#     - http:
#         paths:
#           - backend:
#               service:
#                 name: hello-world-preview
#                 port:
#                   number: 5000
#             path: /preview
#             pathType: Prefix
# status:
#   loadBalancer: {}
#


# inside of kind nodeport service is easier to test
---

apiVersion: v1
kind: Service
metadata:
  name: hello-world-active
  namespace: hello-world
spec:
  type: NodePort # Change service type to NodePort
  ports:
    - name: "5000"
      port: 5000
      targetPort: 5000
      nodePort: 30001 # Specify a node port (you can choose any available port)
  selector:
    app: rollout-bluegreen

---
apiVersion: v1
kind: Service
metadata:
  name: hello-world-preview
  namespace: hello-world
spec:
  type: NodePort # Change service type to NodePort
  ports:
    - name: "5000"
      port: 5000
      targetPort: 5000
      nodePort: 30002 # Specify a different node port (make sure it's available)
  selector:
    app: rollout-bluegreen