Kubernetes + Travis CI/CD with DigitalOcean - https://medium.com/p/c0c4058b7734

deployment.production.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: raz4
  namespace: production
  labels:
    app: raz4
spec:
  replicas: 3
  minReadySeconds: 60 # wait for 60 seconds before considering pod as ready and continuing with next
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxUnavailable: 1
      maxSurge: 1
  selector:
    matchLabels:
      app: raz4api
  template:
    metadata:
      labels:
        app: raz4api
    spec:
      containers:
        - name: raz4api
          image: $REPO_URL/$IMAGE_NAME:$TRAVIS_COMMIT
          ports:
            - containerPort: $RAZ_API_PORT
              name: http
          envFrom:
            - secretRef:
                name: v4-secrets-smartapi
          readinessProbe:
            initialDelaySeconds: 600
            periodSeconds: 5
            timeoutSeconds: 5
            failureThreshold: 3
            httpGet:
              path: /status
              port: http
          livenessProbe:
            initialDelaySeconds: 600
            periodSeconds: 5
            timeoutSeconds: 5
            failureThreshold: 3
            httpGet:
              path: /status
              port: http
      imagePullSecrets:
        - name: eu-west-2-ecr-registry