• skywalking 部署使用


    1. 结构采用, pod中植入 agent, 传输到 172.16.230.29:11800, es 使用docker部署,版本es7

    docker run -d --name elasticsearch   -p 9200:9200 -p 9300:9300 -e "discovery.type=single-node" docker.elastic.co/elasticsearch/elasticsearch:7.5.2

    2. 下载 skywaking

    wget https://mirrors.tuna.tsinghua.edu.cn/apache/skywalking/7.0.0/apache-skywalking-apm-es7-7.0.0.tar.gz

    3. 修改存储,使用 es7

    4. 启动

    #注意要在es启动后,在启动skywalking
    [root@harbor apache-skywalking-apm-bin-es7]# bin/startup.sh

    5. 客户端配置,通过 dockerfile 和 comfigmap 使用

    [root@harbor jar]# cat Dockerfile
    FROM   IMAGE
    
    MAINTAINER fengjian <fengjian@senyint.com.com>
    RUN mkdir /data/webserver -p
    ADD start.sh /data/webserver/
    COPY agent /data/agent
    
    RUN chmod +x /data/webserver/start.sh 
        && sed -i "s/Your_ApplicationName/jenkins/g" /data/agent/config/agent.config
    
    ADD jenkins.jar /data/webserver/
    EXPOSE containerport
    ENTRYPOINT ["/data/webserver/start.sh"]
    [root@harbor jar]# cat start.sh 
    #!/bin/sh
    
    # JAVA_HOME export JAVA_HOME=/data/jdk # 设置项目代码路径 export _EXECJAVA="$JAVA_HOME/bin/java" #jar包 名称 JAVANAME=`ls /data/webserver/*jar` # 启动 $_EXECJAVA ${JAVA_OPT} -jar $JAVANAME

    k8s中部署应用 和  nacos, nacos的yaml为

    [root@master1 senyint]# cat nacos-quick-start.yaml 
    ---
    apiVersion: v1
    kind: Service
    metadata:
      namespace: senyint
      name: nacos
      labels:
        app: nacos
    spec:
      type: NodePort
      ports:
        - port: 8848
          name: server
          targetPort: 8848
      selector:
        app: nacos
    ---
    apiVersion: v1
    kind: ConfigMap
    metadata:
      namespace: senyint
      name: nacos-cm
    data:
      mysql.db.name: "nacos_devtest"
      mysql.port: "3306"
      mysql.user: "nacos"
      mysql.password: "nacos"
    ---
    apiVersion: apps/v1
    kind: StatefulSet
    metadata:
      namespace: senyint
      name: nacos
    spec:
      serviceName: nacos
      replicas: 3
      template:
        metadata:
          labels:
            app: nacos
          annotations:
            pod.alpha.kubernetes.io/initialized: "true"
        spec:
          initContainers:
            - name: sidecar
              image: 172.16.230.29/senyint/skywalking-agent:202004101053
              imagePullPolicy: Always
              command: ["sh", "-c", "cp -r /data/agent /sidecar"]
              volumeMounts:
                - name: sidecar
                  mountPath: /sidecar
          affinity:
            podAntiAffinity:
              requiredDuringSchedulingIgnoredDuringExecution:
                - labelSelector:
                    matchExpressions:
                      - key: "app"
                        operator: In
                        values:
                          - nacos
                  topologyKey: "kubernetes.io/hostname"
          containers:
            - name: k8snacos
              imagePullPolicy: Always
              image: nacos/nacos-server:latest
              resources:
                requests:
                  memory: "2Gi"
                  cpu: "500m"
              ports:
                - containerPort: 8848
                  name: client
              volumeMounts:
                - name: sidecar
                  mountPath: /sidecar
              env:
                - name: JAVA_OPT
                  value: -javaagent:/sidecar/agent/skywalking-agent.jar
                - name: NACOS_REPLICAS
                  value: "3"
                - name: MYSQL_SERVICE_DB_NAME
                  valueFrom:
                    configMapKeyRef:
                      name: nacos-cm
                      key: mysql.db.name
                - name: MYSQL_SERVICE_PORT
                  valueFrom:
                    configMapKeyRef:
                      name: nacos-cm
                      key: mysql.port
                - name: MYSQL_SERVICE_USER
                  valueFrom:
                    configMapKeyRef:
                      name: nacos-cm
                      key: mysql.user
                - name: MYSQL_SERVICE_PASSWORD
                  valueFrom:
                    configMapKeyRef:
                      name: nacos-cm
                      key: mysql.password
                - name: NACOS_SERVER_PORT
                  value: "8848"
                - name: PREFER_HOST_MODE
                  value: "hostname"
                - name: NACOS_SERVERS
                  value: "nacos-0.nacos.senyint.svc.cluster.local.:8848 nacos-1.nacos.senyint.svc.cluster.local.:8848 nacos-2.nacos.senyint.svc.cluster.local.:8848"
          volumes:
            - name: sidecar  #共享agent文件夹
              emptyDir: {}
          restartPolicy: Always
      selector:
        matchLabels:
          app: nacos

    使用initcontainers  共享磁盘空间, 172.16.230.29/senyint/skywalking-agent:202004101053, 启动ssh,agent 在 /data目录中,

    k8s pod中,通过引用 env 环境变量 JAVA_OPT 引入

    环境变量配置:

    参考

    https://skywalking.apache.org/downloads/

    https://github.com/evanxuhe/skywalking-kubernetes/tree/master/6.1.0/apm-springcloud-demo

    https://github.com/evanxuhe/skywalking-kubernetes/blob/master/6.1.0/apm-springcloud-demo/kdep-apm-eureka.yml

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  • 原文地址:https://www.cnblogs.com/fengjian2016/p/12674004.html
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