Upgrade & Secure Your Future with DevOps, SRE, DevSecOps, MLOps!

We spend hours on Instagram and YouTube and waste money on coffee and fast food, but won’t spend 30 minutes a day learning skills to boost our careers.
Master in DevOps, SRE, DevSecOps & MLOps!

Learn from Guru Rajesh Kumar and double your salary in just one year.


Get Started Now!

Kubernetes

Kubernetes Tutorials: Statefulset with example

March 24, 2021 comments off

Statefulset example with HostPath PV

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: web
spec:
  serviceName: "web-service"
  replicas: 2
  selector:
    matchLabels:
      app: web
  template:
    metadata:
      labels:
        app: web
    spec:
      containers:
      - name: web-container
        image: nginx:latest
        ports:
        - containerPort: 80
        volumeMounts:
        - name: data
          mountPath: /var/www/html  # Mount the volume at this path inside the container
  volumeClaimTemplates:
  - metadata:
      name: data
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: 1Gi
      storageClassName: manual

Statefulsets…

  • pod name
  • order
  • sticky to pvc

Statefulset example with NFS PV

apiVersion: v1
kind: PersistentVolume
metadata:
  name: pv0001 
spec:
  capacity:
    storage: 1Gi 
  accessModes:
  - ReadWriteOnce 
  nfs: 
    path: /tecnotree/pv0001
    server: 172.31.14.69 
  persistentVolumeReclaimPolicy: Recycle
apiVersion: v1
kind: PersistentVolume
metadata:
  name: pv0002
spec:
  capacity:
    storage: 1Gi 
  accessModes:
  - ReadWriteOnce 
  nfs: 
    path: /tecnotree/pv0002
    server: 172.31.14.69 
  persistentVolumeReclaimPolicy: Recycle
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: web
spec:
  serviceName: "nginx"
  replicas: 2
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: k8s.gcr.io/nginx-slim:0.8
        ports:
        - containerPort: 80
          name: web
        volumeMounts:
        - name: www
          mountPath: /usr/share/nginx/html
  volumeClaimTemplates:
  - metadata:
      name: www
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: 1Gi
apiVersion: v1
kind: Service
metadata:
  name: nginx
  labels:
    app: nginx
spec:
  ports:
  - port: 80
    name: web
  clusterIP: None
  selector:
    app: nginx
DevOps Certification, SRE Certification, and DevSecOps Certification by DevOpsSchool

Explore our DevOps Certification, SRE Certification, and DevSecOps Certification programs at DevOpsSchool. Gain the expertise needed to excel in your career with hands-on training and globally recognized certifications.