# supervision安裝配置測試 ### 安裝supervision ``` apt-get install supervisor ``` ### 主配置文件自動生成了 ``` [root@supervisor ~]# cat /etc/supervisor/supervisord.conf ; supervisor config file [unix_http_server] file=/var/run/supervisor.sock ; (the path to the socket file) chmod=0700 ; sockef file mode (default 0700) [supervisord] logfile=/var/log/supervisor/supervisord.log ; (main log file;default $CWD/supervisord.log) pidfile=/var/run/supervisord.pid ; (supervisord pidfile;default supervisord.pid) childlogdir=/var/log/supervisor ; ('AUTO' child log dir, default $TEMP) ; the below section must remain in the config file for RPC ; (supervisorctl/web interface) to work, additional interfaces may be ; added by defining them in separate rpcinterface: sections [rpcinterface:supervisor] supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface [supervisorctl] serverurl=unix:///var/run/supervisor.sock ; use a unix:// URL for a unix socket ; The [include] section can just contain the "files" setting. This ; setting can list multiple files (separated by whitespace or ; newlines). It can also contain wildcards. The filenames are ; interpreted as relative to this file. Included files *cannot* ; include files themselves. [include] files = /etc/supervisor/conf.d/*.conf ``` ### 測試腳本 #### 每秒輸出日期到日志里,殺掉進程然后查看時候會中斷 ``` [root@supervisor ~]# cat scripts/echo_date.sh #!/bin/bash while true do echo $(date +%H:%M:%S) >> /tmp/echo_time.log sleep 1 done ``` ### 添加程序配置program.conf [root@supervisor conf.d]# cat program.conf ``` [program:echo_date_server] directory = /root/scripts ; 程序的啟動目錄 command = sh echo_date.sh ; 啟動命令，可以看出與手動在命令行啟動的命令是一樣的 autostart = true ; 在 supervisord 啟動的時候也自動啟動 startsecs = 5 ; 啟動 5 秒后沒有異常退出，就當作已經正常啟動了 autorestart = true ; 程序異常退出后自動重啟 startretries = 3 ; 啟動失敗自動重試次數，默認是 3 user = root ; 用哪個用戶啟動 redirect_stderr = true ; 把 stderr 重定向到 stdout，默認 false stdout_logfile_maxbytes = 20MB ; stdout 日志文件大小，默認 50MB stdout_logfile_backups = 20 ; stdout 日志文件備份數 ; stdout 日志文件，需要注意當指定目錄不存在時無法正常啟動，所以需要手動創建目錄（supervisord 會自動創建日志文件） stdout_logfile = /tmp/echo_stdout.log ``` ### 啟動服務 ``` systemctl start supervisor.service ``` ### 出錯信息 ``` [root@supervisor ~]# supervisord -c /etc/supervisor/supervisord.conf Error: Another program is already listening on a port that one of our HTTP servers is configured to use. Shut this program down first before starting supervisord. For help, use /usr/bin/supervisord -h ``` 解決, 可能是用其他命令啟動了supervisord進程,全部殺掉,然后用/init.d或者systemcl啟動 ### 測試方法 啟動supervisor 查看測試程序輸出日志 查看測試程序的進程pid 殺掉正在運行的測試程序 觀察輸出日志是否會中斷 如果沒中斷就表示supervisor重啟生效了 如果中斷了就表示配置沒生效