A Deployment and Service for a checkout API

“Write me a Kubernetes Deployment and Service for our checkout API. It runs on port 8080, we want four replicas for redundancy, and it should be highly available during deploys.”

real · about 15 minutes

What was generated

apiVersion: apps/v1
kind: Deployment
metadata:
  name: checkout
  labels:
    app: checkout
spec:
  replicas: 4
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxSurge: 25%
      maxUnavailable: 25%
  selector:
    matchLabels:
      app: checkout
  template:
    metadata:
      labels:
        app: checkout
    spec:
      containers:
      - name: checkout
        image: checkout:2.1.0
        ports:
        - containerPort: 8080
        readinessProbe:
          httpGet:
            path: /
            port: 8080
          initialDelaySeconds: 5
          periodSeconds: 10
        livenessProbe:
          httpGet:
            path: /
            port: 8080
          initialDelaySeconds: 15
          periodSeconds: 20
        resources:
          requests:
            cpu: 500m
            memory: 512Mi
          limits:
            cpu: 500m
            memory: 512Mi

…and this

apiVersion: v1
kind: Service
metadata:
  name: checkout
spec:
  selector:
    app: checkout
  ports:
  - port: 80
    targetPort: 8080

Before you apply it

This is valid, idiomatic, and does everything that was asked for. Before you apply it: how many of the next three thousand requests fail, and which field is responsible?

Requests you expect to fail