container.training/k8s/ytt/2-functions/app.yaml

#! Define and use a function to set the deployment image.
---
#@ repository = "dockercoins"
#@ tag = "v0.1"
#@ def image(component):
#@   return "{}/{}:{}".format(repository, component, tag)
#@ end
---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: hasher
  name: hasher
spec:
  replicas: 1
  selector:
    matchLabels:
      app: hasher
  template:
    metadata:
      labels:
        app: hasher
    spec:
      containers:
      - image: #@ image("hasher")
        name: hasher
---
apiVersion: v1
kind: Service
metadata:
  labels:
    app: hasher
  name: hasher
spec:
  ports:
  - port: 80
    protocol: TCP
    targetPort: 80
  selector:
    app: hasher
  type: ClusterIP
---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: redis
  name: redis
spec:
  replicas: 1
  selector:
    matchLabels:
      app: redis
  template:
    metadata:
      labels:
        app: redis
    spec:
      containers:
      - image: redis
        name: redis
---
apiVersion: v1
kind: Service
metadata:
  labels:
    app: redis
  name: redis
spec:
  ports:
  - port: 6379
    protocol: TCP
    targetPort: 6379
  selector:
    app: redis
  type: ClusterIP
---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: rng
  name: rng
spec:
  replicas: 1
  selector:
    matchLabels:
      app: rng
  template:
    metadata:
      labels:
        app: rng
    spec:
      containers:
      - image: #@ image("rng")
        name: rng
---
apiVersion: v1
kind: Service
metadata:
  labels:
    app: rng
  name: rng
spec:
  ports:
  - port: 80
    protocol: TCP
    targetPort: 80
  selector:
    app: rng
  type: ClusterIP
---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: webui
  name: webui
spec:
  replicas: 1
  selector:
    matchLabels:
      app: webui
  template:
    metadata:
      labels:
        app: webui
    spec:
      containers:
      - image: #@ image("webui")
        name: webui
---
apiVersion: v1
kind: Service
metadata:
  labels:
    app: webui
  name: webui
spec:
  ports:
  - port: 80
    protocol: TCP
    targetPort: 80
  selector:
    app: webui
  type: NodePort
---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: worker
  name: worker
spec:
  replicas: 1
  selector:
    matchLabels:
      app: worker
  template:
    metadata:
      labels:
        app: worker
    spec:
      containers:
      - image: #@ image("worker")
        name: worker