docker安装部署SkyWalking实战

系统：CentOS7.6

使用官方安装脚本自动安装
安装命令如下：

curl -fsSL https://get.docker.com | bash -s docker --mirror Aliyun

或者使用国内 daocloud 一键安装命令：

curl -sSL https://get.daocloud.io/docker | sh

手动安装

1. 卸载旧版本

$ sudo yum remove docker 
                  docker-client 
                  docker-client-latest 
                  docker-common 
                  docker-latest 
                  docker-latest-logrotate 
                  docker-logrotate 
                  docker-engine

2. 使用yum进行安装

$ sudo yum install -y yum-utils 
  device-mapper-persistent-data 
  lvm2

3. 设置国内镜像

$ sudo yum-config-manager 
    --add-repo 
    http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

4. 安装 Docker Engine-Community

$ sudo yum install docker-ce docker-ce-cli containerd.io

5. 启动docker

$ sudo systemctl start docker

可以从 Github 上下载它的二进制包来使用，最新发行的版本地址：https://github.com/docker/compose/releases。
或者执行命令：

curl -L "https://github.com/docker/compose/releases/download/v2.2.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

修改文件权限

 chmod +x /usr/local/bin/docker-compose

创建软链接

ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose

查看安装版本

docker-compose --version

当前安装版本
Docker Compose version v2.4.1

• 创建docker-compose.yml文件,内容如下

version: '3.8'
services:
  es:
    image: docker.elastic.co/elasticsearch/elasticsearch-oss:7.4.2
    container_name: es
    ports:
      - "9200:9200"
    healthcheck:
      test: [ "CMD-SHELL", "curl --silent --fail localhost:9200/_cluster/health || exit 1" ]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 10s
    environment:
      - discovery.type=single-node
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
      - "TZ=Asia/Shanghai"
    ulimits:
      memlock:
        soft: -1
        hard: -1

  oap:
    image: apache/skywalking-oap-server:8.9.1
    container_name: oap
    depends_on: 
      - es
    links:
      - es
    ports:
      - "11800:11800"
      - "12800:12800"
    healthcheck:
      test: [ "CMD-SHELL", "/skywalking/bin/swctl ch" ]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 10s
    environment:
      SW_STORAGE: elasticsearch
      SW_STORAGE_ES_CLUSTER_NODES: es:9200
      SW_HEALTH_CHECKER: default
      TZ: Asia/Shanghai
      SW_TELEMETRY: prometheus
      JAVA_OPTS: "-Xms2048m -Xmx2048m"

  ui:
    image: apache/skywalking-ui:8.9.1
    container_name: ui
    depends_on: 
      - oap
    links:
      - oap
    ports:
      - "8080:8080"
    environment:
      SW_OAP_ADDRESS: http://oap:12800
      TZ: Asia/Shanghai

再依次启动

docker-compose up -d es
docker-compose up -d oap
docker-compose up -d ui

关闭防火墙或者启用端口

firewall-cmd --zone=public --add-port=9200/tcp --permanent
firewall-cmd --zone=public --add-port=11800/tcp --permanent
firewall-cmd --zone=public --add-port=12800/tcp --permanent
firewall-cmd --zone=public --add-port=8002/tcp --permanent
firewall-cmd --reload

skywalking部署完成

在agent中 skywalking-agent/config/agent.config 修改以下配置项，可按需配置值

collector.backend_service=${SW_AGENT_COLLECTOR_BACKEND_SERVICES:127.0.0.1:11800}
agent.span_limit_per_segment=${SW_AGENT_SPAN_LIMIT:1000}

java jar包启动，命令中添加agent参数

java -javaagent:/opt/skywalking-agent/skywalking-agent.jar -DSW_AGENT_NAME=Your_Application_name -jar application.jar

至此，配置完成；
注：-DSW_AGENT_NAME 配置的值可以按 [groupName]::[applicaitonName] 配置，拓扑生成的时候会按分组进行处理。