kind: Namespace
apiVersion: v1
metadata:
  name: multiarch
  labels:
    name: multiarch
---
apiVersion: v1
kind: Service
metadata:
  name: multiarch-service
  namespace: multiarch
  annotations:
    service.beta.kubernetes.io/aws-load-balancer-type: "nlb"
  labels:
    app: multiarch-app
spec:
  selector:
    app: multiarch-app
  ports:
    - protocol: TCP
      port: 80
      targetPort: 3000
  type: LoadBalancer
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: multiarch-deployment
  namespace: multiarch
  labels:
    app: multiarch-app
spec:
  replicas: 4
  selector:
    matchLabels:
      app: multiarch-app
  template:
    metadata:
      labels:
        app: multiarch-app
    spec:
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
            - matchExpressions:
              - key: kubernetes.io/arch
                operator: In
                values:
                - amd64
                - arm64
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
          - labelSelector:
              matchExpressions:
              - key: app
                operator: In
                values:
                - multiarch-app
            topologyKey: "kubernetes.io/hostname"
      containers:
      - name: multiarch-container
        image: {{container_uri}} 
        ports:
        - containerPort: 80