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Deployment

Basic settings
Resource requests & limits

Requests

Limits

Environment variables
Deployment.yaml45 lines
apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-app
  namespace: default
  labels:
    app: my-app
spec:
  replicas: 2
  selector:
    matchLabels:
      app: my-app
  template:
    metadata:
      labels:
        app: my-app
    spec:
      containers:
        - name: my-app
          image: nginx:latest
          ports:
            - containerPort: 80
              protocol: TCP
          resources:
            requests:
              cpu: "100m"
              memory: "128Mi"
            limits:
              cpu: "500m"
              memory: "512Mi"
        env:
          - name: APP_ENV
            value: "production"
          livenessProbe:
            httpGet:
              path: /healthz
              port: 80
            initialDelaySeconds: 30
            periodSeconds: 10
          readinessProbe:
            httpGet:
              path: /ready
              port: 80
            initialDelaySeconds: 5
            periodSeconds: 5

Notes for Deployment

  • Names must match RFC 1123: lowercase alphanumeric and hyphens only.
  • CPU requests/limits use millicores (e.g. 100m = 0.1 CPU).
  • Memory uses binary suffixes: Mi, Gi.
  • Enable probes only when your container exposes the configured paths.