cluster-xxl-job-admin

• MySQL: 参考 external-mysql 文章

• 日志存储采用 hostpath 方式

• Pod 多节点反亲和性调度，单节点失效

• Node 调度， 只运行在指定的节点上

• 数据库导入: https://github.com/xuxueli/xxl-job/blob/2.4.1/doc/db/tables_xxl_job.sql

[root@master test]# cat cluster-xxl-job-admin-statefulset.yaml 
# web访问服务
apiVersion: v1
kind: Service
metadata:
  name: xxl-job-admin-svc
  labels:
    app: xxl-job-admin
spec:
  type: NodePort
  ports:
    - name: web
      port: 8080
      targetPort: 8080
      nodePort: 30080
  selector:
    app: xxl-job-admin
---
# 数据库导入: https://github.com/xuxueli/xxl-job/blob/2.4.1/doc/db/tables_xxl_job.sql
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: xxl-job-admin
  namespace: default
  labels:
    app: xxl-job-admin
spec:
  serviceName: xxl-job-admin-svc
  replicas: 3
  selector:
    matchLabels:
      app: xxl-job-admin
  template:
    metadata:
      labels:
        app: xxl-job-admin
    spec:
      # 节点打上中间件标签并污染：kubectl taint nodes <node-name> middleware=true:NoSchedule
      #tolerations:
      #  - key: "middleware"
      #    operator: "Equal"
      #    value: "true"
      #    effect: "NoSchedule"
      
      # 当多节点生效：不允许同一个pod调度到同一个节点
      affinity:
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            - labelSelector:
                matchExpressions:
                  - key: "app"
                    operator: In
                    values:
                      - middleware
              topologyKey: "kubernetes.io/hostname"
      containers:
        - name: xxl-job-admin
          image: xuxueli/xxl-job-admin:2.4.0
          imagePullPolicy: IfNotPresent
          resources:
            requests:
              memory: "300Mi"
              cpu: "0.2"
            limits:
              memory: "8Gi"
              cpu: "8"
          livenessProbe:
            httpGet:
              path: /xxl-job-admin/actuator/health
              port: 8080
              scheme: HTTP
            failureThreshold: 10
            initialDelaySeconds: 10
            periodSeconds: 5
            timeoutSeconds: 1
          readinessProbe:
            httpGet:
              path: /xxl-job-admin/actuator/health
              port: 8080
              scheme: HTTP
            failureThreshold: 10
            initialDelaySeconds: 10
            periodSeconds: 5
            timeoutSeconds: 1
          env:
            - name: TZ
              value: America/Sao_Paulo # 巴西: America/Sao_Paulo; 上海：Asia/Shanghai
            - name: PARAMS
              value: "--spring.datasource.url=jdbc:mysql://external-mysql:3306/xxl_job?Unicode=true&characterEncoding=UTF-8&autoReconnect=true&serverTimezone=America/Sao_Paulo --spring.datasource.username=root --spring.datasource.password=123456"
          ports:
            - containerPort: 8080
          volumeMounts:
            - name: xxl-job-admin-log
              mountPath: /data/applogs
      volumes:
        - name: xxl-job-admin-log
          hostPath:
            path: /data/k8s/xxl-job-admin/