自己后台运行程序，一般用的是screen，tmux，懒得时候就就直接nohup &

supervisor和systemctl一样，写配置都挺麻烦的，supervisor好点的是有一个web面板。

安装

apt install supervisor

supervisor配置文件一般在/etc/supervisor/supervisord.conf

[unix_http_server]
file=/var/run/supervisor.sock   ; (the path to the socket file)
chmod=0700                       ; sockef file mode (default 0700)

[inet_http_server] ;HTTP服务器，提供web管理界面
port=0.0.0.0:9001 ;Web管理后台运行的IP和端口
username=zsxwz ;登录管理后台的用户名
password=123321 ;登录管理后台的密码

[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

然后就可以在/etc/supervisor/conf.d/ 放进程管理 xxx.conf

[program:xxx]
command=/opt/apache-tomcat-8.0.35/bin/catalina.sh run  ; 程序启动命令
directory=/root/xxx ; 路径
autostart=true ; 在supervisord启动的时候也自动启动
startsecs=10 ; 启动10秒后没有异常退出，就表示进程正常启动了，默认为1秒
autorestart=true ; 程序退出后自动重启,可选值：[unexpected,true,false]，默认为unexpected，表示进程意外杀死后才重启
startretries=3 ; 启动失败自动重试次数，默认是3
user=root; 用哪个用户启动进程，默认是root
priority=999 ; 进程启动优先级，默认999，值小的优先启动
redirect_stderr=true ; 把stderr重定向到stdout，默认false
stdout_logfile=/opt/apache-tomcat-8.0.35/logs/catalina.out

supervisorctl 是 supervisord的命令行客户端工具

supervisorctl status：查看所有进程的状态
supervisorctl stop es：停止es
supervisorctl start es：启动es
supervisorctl restart es: 重启es
supervisorctl update ：配置文件修改后可以使用该命令加载新的配置
supervisorctl reload: 重新启动配置中的所有程序