skywalking 使用 mysql 部署 skywalking java

文章目录

• SkyWalking监控java项目Halo博客
• SkyWalking监控nginx+Jenkins项目

• Jenkins部署
• nginx编译安装
• Skywalking nginx-lua-agent配置
• SkyWalking查看数据

SkyWalking监控java项目Halo博客

Halo是一个开源的博客项目，使用java编写，官网地址：https://halo.run/

安装java环境，Halo对java版本有限制，1.4.3版本以上需要使用java11以上

apt -y install openjdk-11-jdk
java --version

下载SkyWalking对应的Java Agent

wget https://dlcdn.apache.org/skywalking/java-agent/8.14.0/apache-skywalking-java-agent-8.14.0.tgz
tar xf apache-skywalking-java-agent-8.14.0.tgz -C /usr/local/src/

修改SkyWalking Java Agnet的配置文件

vim /usr/local/src/skywalking-agent/config/agent.config	#修改下面3个配置参数，其余可保持默认
########################################
 20 agent.service_name=${SW_AGENT_NAME:halo}	#agent监控的项目或服务在SkyWalking UI上对应的服务名称
 21
 22 # The agent namespace
 23 agent.namespace=${SW_AGENT_NAMESPACE:n70}	#agent所在的名称空间，可以用来标示服务所属项目
104 collector.backend_service=${SW_AGENT_COLLECTOR_BACKEND_SERVICES:192.168.122.28:11800}	#指定SkyWalking Server的地址和端口

下载Halo项目jar包

mkdir /usr/local/src/halo
wget https://github.com/halo-dev/halo/releases/download/v1.6.0/halo-1.6.0.jar -O /usr/local/src/

运行Halo项目

#通过-javaagent选项指定Java Agnet的路径
nohup java -javaagent:/usr/local/src/skywalking-agent/skywalking-agent.jar -jar /usr/local/src/halo/halo-1.6.0.jar &

运行之后对Halo进行初始华设置

之后就可以在SkyWalking的UI界面上看到关于Halo项目的数据

SkyWalking监控nginx+Jenkins项目

Jenkins部署

下载tomcat和jenkins安装包

cd /usr/local/src
wget https://dlcdn.apache.org/tomcat/tomcat-8/v8.5.86/bin/apache-tomcat-8.5.86.tar.gz
wget https://get.jenkins.io/war-stable/2.375.3/jenkins.war
tar xf apache-tomcat-8.5.86.tar.gz -C /usr/local/
ln -sv /usr/local/apache-tomcat-8.5.86 /usr/local/tomcat
cd /usr/local/tomcat/webapps
mv /usr/local/src/jenkins.war ./

修改catalina.sh，配置tomcat启动时加载skywalking java-agent

vim /usr/local/tomcat/bin/catalina.sh
############################
#在文件开头添加此行，指定skywalking java-agent位置
CATALINA_OPTS="$CATALINA_OPTS -javaagent:/usr/local/skywalking-agent/skywalking-agent.jar"; export CATALINA_OPTS

skywalking java-agent的下载和配置可以参考上面的Halo项目配置

启动tomcat

/usr/local/tomcat/bin/catalina.sh start

查看tomcat的启动日志/usr/local/tomcat/logs/catalina.out，确保服务正常启动

访问jenkins，进行初始化设置

现在SkyWalking UI界面就已经有Jenkins服务的相关数据了

nginx编译安装

由于Skywalking nginx-lua-agent需要lua环境，所以需要nginx编译的时候需要加载lua相关模块

配置luajit2

cd /usr/local
wget https://github.com/openresty/luajit2/archive/refs/tags/v2.1-20230119.tar.gz -O luajit2-2.1-20230119.tar.gz
tar xf luajit2-2.1-20230119.tar.gz
cd luajit2-2.1-20230119/
make install PREFIX=/usr/local/luajit2-2.1-20230119

#配置系统变量，编译nginx时使用
echo "export LUAJIT_LIB=/usr/local/luajit2-2.1-20230119/lib" >>/etc/profile
echo "export LUAJIT_INC=/usr/local/luajit2-2.1-20230119/include//luajit-2.1" >>/etc/profile
source /etc/profile

#配置系统加载luajit2相关的库文件
vim /etc/ld.so.conf.d/libc.conf
#############################
# libc default configuration
/usr/local/lib
/usr/local/luajit2-2.1-20230119/lib
#############################
ldconfig

配置lua-resty-core

cd /usr/local
wget https://github.com/openresty/lua-resty-core/archive/refs/tags/v0.1.25.tar.gz -O lua-resty-core-0.1.25.tar.gz
tar xf lua-resty-core-0.1.25.tar.gz
cd lua-resty-core-0.1.25/
mkae install PREFIX=/usr/local/luacore

配置lua-resty-lrucache

cd /usr/local
wget https://github.com/openresty/lua-resty-lrucache/archive/refs/tags/v0.13.tar.gz -O lua-resty-lrucache-0.13.tar.gz
tar xf lua-resty-lrucache-0.13.tar.gz
cd lua-resty-lrucache-0.13/
make install PREFIX=/usr/local/lua-lrucache

配置lua-cjson

cd /usr/local
wget https://github.com/openresty/lua-cjson/archive/refs/tags/2.1.0.9.tar.gz -O lua-cjson-2.1.0.9.tar.gz
tar xf lua-cjson-2.1.0.9.tar.gz
cd lua-cjson-2.1.0.9/

vim Makefile    #编辑Makefile文件，将LUA_INCLUDE_DIR的路径修改为前面luajit2的路径
#####################
LUA_INCLUDE_DIR ?=   /usr/local/luajit2-2.1-20230119/include//luajit-2.1
######################

#执行编译
make
make install

下载ngx_devel_kit和lua-nginx-module模块，编译nginx时添加

cd /usr/local/
wget https://github.com/vision5/ngx_devel_kit/archive/refs/tags/v0.3.2.tar.gz -O ngx_devel_kit-0.3.2.tar.gz
tar xf ngx_devel_kit-0.3.2.tar.gz

wget https://github.com/openresty/lua-nginx-module/archive/refs/tags/v0.10.23.tar.gz -O lua-nginx-module-0.10.23.tar.gz
tar xf lua-nginx-module-0.10.23.tar.gz

编译安装nginx

cd /usr/local/src/
wget http://nginx.org/download/nginx-1.22.1.tar.gz
tar xf nginx-1.22.1.tar.gz
cd nginx-1.22.1
./configure --prefix=/usr/local/nginx \
--with-http_ssl_module \
--with-http_v2_module \
--with-http_realip_module \
--with-http_stub_status_module \
--with-http_gzip_static_module \
--with-pcre \
--with-file-aio \
--with-stream \
--with-stream_ssl_module \
--with-stream_realip_module \
--add-module=/usr/local/ngx_devel_kit-0.3.2/ \
--add-module=/usr/local/lua-nginx-module-0.10.23/	#注意要添加这两个模块

make && make install

测试nginx lua环境是否生效

vim /usr/local/nginx/conf/nginx.conf    #修改nginx配置，导入lua包，添加lua测试页面
##################################
http {
    include       mime.types;
    default_type  application/octet-stream;
    #添加此行，指定之前安装的lua-lrucache和lua-resty-core包位置
    lua_package_path "/usr/local/lua-lrucache/lib/lua/?.lua;/usr/local/luacore/lib/lua/?.lua;;";
    
    
    ......
    
    server {
        #添加一个/hello测试页面
        location /hello {
          default_type text/html;
          content_by_lua_block {
          ngx.say("Hello Lua")
          }
        }
            
    }
}
###################################
/usr/local/nginx/sbin/nginx -t
/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf    #启动nginx

访问测试页面验证，能成功显示Hello Lua就表示lua环境已经生效

Skywalking nginx-lua-agent配置

nginx-lua-agent项目地址：https://github.com/apache/skywalking-nginx-lua nginx-lua-agent使用文档：https://skywalking.apache.org/docs/skywalking-java/v8.14.0/readme/

下载安装包

cd /usr/local/
wget https://github.com/apache/skywalking-nginx-lua/archive/refs/tags/v0.6.0.tar.gz -O skywalking-nginx-lua-0.6.0.tar.gz
wget https://github.com/openresty/lua-tablepool/archive/refs/tags/v0.02.tar.gz -O lua-tablepool-0.02.tar.gz
tar xf skywalking-nginx-lua-0.6.0.tar.gz
tar xf lua-tablepool-0.02.tar.gz
cp lua-tablepool-0.02/lib/tablepool.lua skywalking-nginx-lua-0.6.0/lib/

修改nginx配置文件，配置加载nginx-lua-agent

可以参考github上的文档进行配置：https://github.com/apache/skywalking-nginx-lua/tree/v0.6.0

vim /usr/local/nginx/nginx.conf
##################################
http {
    ......
    #在http段添加下面的配置
    #指定nginx-lua-agent包位置
    lua_package_path "/usr/local/lua-lrucache/lib/lua/?.lua;/usr/local/luacore/lib/lua/?.lua;/usr/local/skywalking-nginx-lua-0.6.0/lib/?.lua;;";

    # Buffer represents the register inform and the queue of the finished segment
    lua_shared_dict tracing_buffer 100m;

    # Init is the timer setter and keeper
    # Setup an infinite loop timer to do register and trace report.
    init_worker_by_lua_block {
        local metadata_buffer = ngx.shared.tracing_buffer

        -- Set service name
        -- 指定服务名称，在SkyWalking UI上显示的Service名字
        metadata_buffer:set('serviceName', 'fronted-nginx')    
        -- Instance means the number of Nginx deployment, does not mean the worker instances
        -- 指定实例名称，在SkyWalking UI上显示的Instance名字
        metadata_buffer:set('serviceInstanceName', 'nginx-node1')
        -- type 'boolean', mark the entrySpan include host/domain
        metadata_buffer:set('includeHostInEntrySpan', false)

        -- set random seed
        require("skywalking.util").set_randomseed()
        -- 指定Skywalking Backend Server的地址
        require("skywalking.client"):startBackendTimer("http://192.168.122.29:11800")

        -- If there is a bug of this `tablepool` implementation, we can
        -- disable it in this way
        -- require("skywalking.util").disable_tablepool()

        skywalking_tracer = require("skywalking.tracer")
    }
    
    .......
    
    server {
        
         location / {
            root   html;
            index  index.html index.htm;
        }       
        
        #在需要监控的后端（location配置）中启用nginx-lua-agent收集数据，以jenkins转发配置为例
        location /jenkins {
          rewrite_by_lua_block {
              ------------------------------------------------------
              -- NOTICE, this should be changed manually
              -- This variable represents the upstream logic address
              -- Please set them as service logic name or DNS name
              --
              -- Currently, we can not have the upstream real network address
              ------------------------------------------------------
              skywalking_tracer:start("jenkins")
              -- If you want correlation custom data to the downstream service
              -- skywalking_tracer:start("upstream service", {custom = "custom_value"})
          }

          proxy_pass http://192.168.122.29:8080;

          body_filter_by_lua_block {
              if ngx.arg[2] then
                  skywalking_tracer:finish()
              end
          }

          log_by_lua_block {
              skywalking_tracer:prepareForReport()
          }
        }
    
    }
}

主要涉及两个位置：

• 在http{}段加载nginx-lua-agent模块，并添加关于nginx-lua-agent的一些初始化配置
• 在http{server{}}段针对需要监控的后端（location配置）中启用nginx-lua-agent收集数据

重新启动nginx

/usr/local/nginx/sbin/nginx -s stop
/usr/local/nginx/sbin/nginx

SkyWalking查看数据

先通过nginx访问jenkins，产生一些数据

然后就可以在SkyWalking UI查看nginx服务数据

在Topology页面可以看到当前服务的拓扑图

在Trace界面可以看到请求对应的调用链信息