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Workloads · easy

1. Pods, Deployments & ReplicaSets

Core workload abstractions in Kubernetes.

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A Pod is the smallest deployable unit in Kubernetes, wrapping one or more co-located containers sharing network namespaces (localhost) and storage volumes. Deployments provide declarative state updates, zero-downtime rolling updates, and rollback capabilities over ReplicaSets.

yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: api-service
spec:
  replicas: 3
  selector:
    matchLabels:
      app: api
  template:
    metadata:
      labels:
        app: api
    spec:
      containers:
      - name: server
        image: api:v1.2.0
        ports:
        - containerPort: 8080

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