158 lines
3.4 KiB
YAML
158 lines
3.4 KiB
YAML
# 对应文档：docs/04-13-nodejs-HPA.md
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# 累积：04-12 + HorizontalPodAutoscaler（CPU 50%，min 1 max 5）
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apiVersion: v1
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kind: PersistentVolumeClaim
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metadata:
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name: nodejs-demo-data
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namespace: default
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spec:
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accessModes:
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- ReadWriteOnce
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storageClassName: local-path
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resources:
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requests:
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storage: 1Gi
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---
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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: nodejs-demo-config
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namespace: default
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data:
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APP_MSG: "Hello from ConfigMap"
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---
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: nodejs-demo
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namespace: default
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spec:
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replicas: 3
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strategy:
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type: RollingUpdate
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rollingUpdate:
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maxSurge: 1
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maxUnavailable: 0
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selector:
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matchLabels:
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app: nodejs-demo
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template:
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metadata:
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labels:
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app: nodejs-demo
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spec:
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nodeSelector:
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kubernetes.io/hostname: ylc62
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securityContext:
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fsGroup: 1000
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containers:
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- name: nodejs-demo
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image: node:18.20-alpine
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imagePullPolicy: IfNotPresent
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securityContext:
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allowPrivilegeEscalation: false
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runAsNonRoot: true
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runAsUser: 1000
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readOnlyRootFilesystem: true
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env:
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- name: APP_MSG
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valueFrom:
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configMapKeyRef:
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name: nodejs-demo-config
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key: APP_MSG
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command:
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- node
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- "-e"
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- |
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const http=require('http');
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const msg=process.env.APP_MSG||'no env';
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http.createServer((q,s)=>s.end(msg)).listen(8080);
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ports:
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- containerPort: 8080
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resources:
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requests:
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cpu: "50m"
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memory: "64Mi"
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limits:
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cpu: "500m"
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memory: "256Mi"
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livenessProbe:
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httpGet:
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path: /
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port: 8080
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initialDelaySeconds: 3
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periodSeconds: 10
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readinessProbe:
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httpGet:
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path: /
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port: 8080
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initialDelaySeconds: 2
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periodSeconds: 5
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volumeMounts:
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- name: tmp
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mountPath: /tmp
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- name: data
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mountPath: /data
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volumes:
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- name: tmp
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emptyDir: {}
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- name: data
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persistentVolumeClaim:
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claimName: nodejs-demo-data
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---
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apiVersion: v1
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kind: Service
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metadata:
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name: nodejs-demo
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namespace: default
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spec:
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selector:
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app: nodejs-demo
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ports:
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- port: 80
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targetPort: 8080
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---
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apiVersion: networking.k8s.io/v1
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kind: Ingress
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metadata:
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name: nodejs-demo
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namespace: default
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annotations:
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traefik.ingress.kubernetes.io/router.entrypoints: websecure
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spec:
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tls:
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- hosts:
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- app.example.local
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secretName: nodejs-demo-tls
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rules:
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- host: app.example.local
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http:
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paths:
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- path: /api
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pathType: Prefix
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backend:
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service:
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name: nodejs-demo
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port:
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number: 80
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---
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apiVersion: autoscaling/v2
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kind: HorizontalPodAutoscaler
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metadata:
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name: nodejs-demo
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namespace: default
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spec:
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scaleTargetRef:
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apiVersion: apps/v1
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kind: Deployment
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name: nodejs-demo
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minReplicas: 1
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maxReplicas: 5
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metrics:
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- type: Resource
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resource:
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name: cpu
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target:
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type: Utilization
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averageUtilization: 50
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