Have you participated in a project using pure Kubernetes?

Yes, participating in a project using pure Kubernetes means working with native Kubernetes without additional platforms or wrappers such as OpenShift or Rancher.

In such a project, you typically need to:

• Write and maintain manifests (YAML) for deploying pods, services, ingress, and other resources.
• Configure settings, secrets, and volumes.
• Manage scaling and updates of applications through the Kubernetes API.
• Use kubectl and other tools to interact with the cluster.

For example, deploying a simple application involves creating a Deployment and Service:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: myapp
spec:
  replicas: 3
  selector:
    matchLabels:
      app: myapp
  template:
    metadata:
      labels:
        app: myapp
    spec:
      containers:
      - name: myapp-container
        image: myapp-image:latest
        ports:
        - containerPort: 8080
---
apiVersion: v1
kind: Service
metadata:
  name: myapp-service
spec:
  selector:
    app: myapp
  ports:
  - protocol: TCP
    port: 80
    targetPort: 8080
  type: ClusterIP

Working with pure Kubernetes requires understanding its architecture and principles of resource management.