Statefulset

Un objeto ‘Statefulset' sigue el mismo patrón que un ‘Deployment' pero un objeto de este tipo garantizando el orden y unicidad de dichos Pods. Esto permite tener Pods con estado.

apiVersion: v1
kind: Service
metadata:
  name: nginx-service
  labels:
    app: nginx
spec:
  ports:
  - port: 80
    name: web
  clusterIP: None
  selector:
    app: nginx
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: nginx-statefulset
  labels:
    app: nginx
spec:
  serviceName: nginx-service
  replicas: 3
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:1.7.9
        ports:
          - containerPort: 80