K8s 部署Django项目

K8s作为目前主流互联网使用技术栈，本次介绍如何将Django项目部署到Kubernetes中。

项目代码使用前面几章节定义的Django文件上传代码，使用上一章打包好的镜像，接下来就是部署到K8s中,请往下看：

Deployment yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  annotations:
    analysis.crane.io/resource-recommendation: |
      containers:
      - containerName: upload-service
        target:
          cpu: 125m
          memory: 375Mi
    deployment.kubernetes.io/revision: "4"
    myname: xiaowangtech
  labels:
    app.kubernetes.io/instance: upload-service
  name: upload-service
  namespace: devops
spec:
  progressDeadlineSeconds: 600
  replicas: 1
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      app: upload-service
  strategy:
    rollingUpdate:
      maxSurge: 25%
      maxUnavailable: 25%
    type: RollingUpdate
  template:
    metadata:
      annotations:
        myname: xiaowangtech
      labels:
        app: upload-service
    spec:
      containers:
      - env:
        image: devops-test.pkg.coding.net/django-upload-service:v2
        imagePullPolicy: IfNotPresent
        name: upload-service
        ports:
        - containerPort: 8000
          protocol: TCP
        resources:
          limits:
            cpu: "1"
            memory: 1Gi
          requests:
            cpu: 200m
            memory: 1Gi
        terminationMessagePath: /app/termination-log
        terminationMessagePolicy: File
      dnsPolicy: ClusterFirst
      imagePullSecrets:
      - name: docker-registry
      restartPolicy: Always
      schedulerName: default-scheduler
      securityContext: {}
      terminationGracePeriodSeconds: 30

Service yaml

apiVersion: v1
kind: Service
metadata:
  labels:
    app.kubernetes.io/instance: upload-service
  name: upload-service-svc
  namespace: devops
spec:
  internalTrafficPolicy: Cluster
  ipFamilies:
  - IPv4
  ipFamilyPolicy: SingleStack
  ports:
  - port: 8000
    protocol: TCP
    targetPort: 8000
  selector:
    app: upload-service
  sessionAffinity: None
  type: ClusterIP

Ingress yaml

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  annotations:
    kubernetes.io/ingress.class: test-ingress-internet
    myname: xiaowangtech
  labels:
    app.kubernetes.io/instance: upload-service
  name: upload-service-ingress
  namespace: devops
spec:
  rules:
  - host: unit-upload.xxx.com
    http:
      paths:
      - backend:
          service:
            name: upload-service-svc
            port:
              number: 8000
        path: /
        pathType: ImplementationSpecific
  tls:
  - hosts:
    - unit-upload.xxx.com
    secretName: xxx-com

部署查看

$ kubectl apply -f upload-service.yaml
$ kubectl get ing,svc,pod -n devops

访问验证

亲测上述配置有效！！！