supervisior基础介绍
supervisord 是后台管理服务器,用来依据配置文件的策略管理后台守护进程,它会随着系统自动启动
supervisorctl 用于管理员向后台管理程序发送 启动 重启 停止 等指令
supervisorctl介绍
执行supervisorctl指令的时候指定配置文件
sudo supervisorctl -c /home/admin/supervisor/etc/supervisord.conf status
sudo supervisorctl -c /home/admin/supervisor/etc/supervisord.conf restart jlogstash
启动用户权限问题
如果是supervisior是以root用户启动的,那么普通用户就不能直接使用supervisorctl命令来操作supervisiord进程
启动说明
supervisor注册成系统服务
1.安装supervisor
2.把supervisor注册成系统服务
3.把所有的业务进程注册到supervisor中来统一管理
# taishi enterprise supervisord service for systemd (CentOS 7.0+) [Unit] Description=taishi Enterprise Supervisor daemon After=taishi.service [Service] Type=forking LimitNOFILE=655350 LimitNPROC=655350 ExecStart=/bin/bash __install_dir__/etc/start_taishi.sh ExecStop=/usr/bin/supervisorctl $OPTIONS shutdown ExecReload=/usr/bin/supervisorctl $OPTIONS reload KillMode=process Restart=no RestartSec=42s [Install] WantedBy=multi-user.target
#!/bin/bash # add hostname into /etc/hosts if necessary os_version=`cat /etc/redhat-release | grep -oE '[0-9]+.[0-9.]+'` os_major_version=${os_version:0:1} if [ $os_major_version -eq "7" ];then hostname=`/usr/bin/hostname` else hostname=`/bin/hostname` fi ping -c 1 -q $hostname > /dev/null 2>&1 if [ $? -ne 0 ]; then echo "127.0.0.1 $hostname" >> /etc/hosts fi if [ -e __install_dir__/jdk ]; then setcap cap_net_bind_service=+epi __install_dir__/jdk/bin/java fi # chmod in order to support license check chmod u+s `which dmidecode` #elasticsearch memory locking ulimit -l unlimited /usr/bin/supervisord -c __install_dir__/etc/supervisord.conf
#Hansight Enterprise supervisor config file. [unix_http_server] file=__install_dir__/tmp/supervisor.sock ; (the path to the socket file) chown=__user__ ; [inet_http_server] ; inet (TCP) server disabled by default port=*:9001 ; (ip_address:port specifier, *:port for all iface) ;username=user ; (default is no username (open server)) ;password=123 ; (default is no password (open server) [supervisord] logfile=__install_dir__/logs/supervisord.log ; (main log file;default $CWD/supervisord.log) logfile_maxbytes=50MB ; (max main logfile bytes b4 rotation;default 50MB) logfile_backups=10 ; (num of main logfile rotation backups;default 10) loglevel=info ; (log level;default info; others: debug,warn,trace) pidfile=__install_dir__/tmp/supervisord.pid ; (supervisord pidfile;default supervisord.pid) nodaemon=false ; (start in foreground if true;default false) user=__user__ ; (default is current user, required if root) minfds=655350 ; (min. avail startup file descriptors;default 1024) minprocs=655350 ; (min. avail process descriptors;default 200) ;umask=022 ; (process file creation umask;default 022) ;user=hansight ; (default is current user, required if root) ;identifier=supervisor ; (supervisord identifier, default is 'supervisor') ;directory=/tmp ; (default is not to cd during start) ;nocleanup=true ; (don't clean up tempfiles at start;default false) ;childlogdir=/tmp ; ('AUTO' child log dir, default $TEMP) ;environment=KEY="value" ; (key value pairs to add to environment) ;strip_ansi=false ; (strip ansi escape codes in logs; def. false) [rpcinterface:supervisor] supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface [supervisorctl] serverurl=unix://__install_dir__/tmp/supervisor.sock ; use a unix:// URL for a unix socket [include] files=__install_dir__/etc/supervisord/*.ini
function Install_Supervisor() { #Install supervisord cd ../src/supervisor/ tar -zxvf setuptools-24.0.2.tar.gz 2>&1 >/dev/null cd setuptools-24.0.2/ python setup.py install >/dev/null 2>&1 cd .. easy_install elementtree-1.2.7-20070827-preview.zip >/dev/null 2>&1 easy_install meld3-0.6.5.tar.gz 2>/dev/null 2>&1 easy_install supervisor-3.3.0.tar.gz >/dev/null 2>&1 cd ../../script/ mkdir -p ${INSTALL_DIR}/etc/ cp ../etc/supervisord.conf ${INSTALL_DIR}/etc/ sed -i "s#__install_dir__#${INSTALL_DIR}#g" ${INSTALL_DIR}/etc/supervisord.conf sed -i "s#__user__#${USER}#g" ${INSTALL_DIR}/etc/supervisord.conf ln -s /usr/bin/supervisorctl ${INSTALL_DIR}/hanctl } function Registration_System_Services() { cp ../etc/start_taishi.sh ${INSTALL_DIR}/etc/ sed -i "s#__install_dir__#${INSTALL_DIR}#g" ${INSTALL_DIR}/etc/start_taishi.sh sed -i "s#__user__#${USER}#g" ${INSTALL_DIR}/etc/start_taishi.sh chown ${USER}:${USER} ${INSTALL_DIR}/etc/start_taishi.sh if [ ${os_major_version} -eq "7" ];then cp ../etc/taishi.service ../tmp/taishi.service #注册成service sed -i "s#__install_dir__#${INSTALL_DIR}#g" ../tmp/taishi.service cp ../tmp/taishi.service /etc/systemd/system/ chown ${USER}:${USER} /etc/systemd/system/taishi.service chmod 644 /etc/systemd/system/taishi.service systemctl daemon-reload else #centos6上的注册服务形式 cp ../etc/hanent ../tmp/hanent #注册成service sed -i "s#__install_dir__#${INSTALL_DIR}#g" ../tmp/hanent cp ../tmp/hanent /etc/init.d/ chown ${USER}:${USER} /etc/init.d/hanent chmod 755 /etc/init.d/hanent chkconfig --add hanent fi }
systemctl start taishi
supervisor使用场景
supervisor比较适合监控业务应用,且只能监控前台程序,实现的daemon【后台启动】的程序不能用它监控,否则supervisor> status 会提示：BACKOFF Exited too quickly (process log may have details)
/app/chuangfa/taishi/zookeeper/bin/zkServer.sh start 后台方式运行 supervisor无法监控
/app/chuangfa/taishi/zookeeper/bin/zkServer.sh start-foreground 前台方式运行才能使用supervisor监控
/usr/sbin/nginx -c /app/chuangfa/taishi/etc/nginx.conf -g "daemon off;" 以前台方式运行nginx进程
/usr/sbin/nginx -c /app/chuangfa/taishi/etc/nginx.conf 后台方式启动nginx 无法被监控到
注册新的管理进程
supervisorctl update
重启所有进程
supervisorctl reload
Supervisor管理java应用
在supervisor的ini配置目录中添加配置启动文件
[program:admin] directory=/home/admin/app command=java -jar -Xmx2048m -Xms2048m -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=256m admin-dev.jar priority=120 process_name=%(program_name)s autostart=true startsecs=60 user=admin redirect_stderr=true stdout_logfile_maxbytes=10MB stdout_logfile_backups=10 stdout_logfile=/home/admin/supervisor/logs/admin_supervisord.log
添加好配置文件后就表示此程序已经可以被supervisor管理起来
script { res = sh(script: "ansible webservers --user=admin -m shell -a 'supervisorctl restart register'", returnStatus: true) if(res != 0){ error("register服务启动失败,本次发布流程终止") } //sh "ansible webservers --user=admin -m shell -a '/home/admin/app/start-gateway.sh'" // res = sh(script: "ansible webservers --user=admin -m shell -a '/home/admin/app/start-gateway.sh'", returnStdout: true) //if (res.contains("Start Fail")){ // error("gateway服务启动失败,本次发布流程终止") //} res = sh(script: "ansible webservers --user=admin -m shell -a 'supervisorctl restart gateway'", returnStatus: true) if(res != 0){ error("gateway服务启动失败,本次发布流程终止") } res = sh(script: "ansible webservers --user=admin -m shell -a 'supervisorctl restart admin'", returnStatus: true) if(res != 0){ error("admin服务启动失败,本次发布流程终止") } res = sh(script: "ansible webservers --user=admin -m shell -a 'supervisorctl restart sdccollectconfig'", returnStatus: true) if(res != 0){ error("sdccollectconfig服务启动失败,本次发布流程终止") } res = sh(script: "ansible webservers --user=admin -m shell -a 'supervisorctl restart sdcruleconfig'", returnStatus: true) if(res != 0){ error("sdc-rule-config服务启动失败,本次发布流程终止") } res = sh(script: "ansible webservers --user=admin -m shell -a 'supervisorctl restart sdces'", returnStatus: true) if(res != 0){ error("sdces服务启动失败,本次发布流程终止") } }
通过流水线脚本自动重启相关服务
supervisor启动时候找不到命令
directory=/app/taishi/app/register-center
command=/bin/bash -c 'source "$0" && exec "$@"' /etc/profile java -jar -Xmx2048m -Xms2048m -Dspring.profiles.active=prod -XX:MetaspaceSize=128m - XX:MaxMetaspaceSize=256m register-center-prod.jar
成功启动java -jar