supervisor 部署

1.下载epel源，安装supervisor

wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.rep
yum install supervisor -y

 2.生成supervisor的初始化配置文件

echo_supervisord_conf > /etc/supervisor/supervisord.conf
[root@localhost supervisor]# grep -Ev "^;|^$" /etc/supervisor/supervisord.conf 

[unix_http_server]
file=/etc/supervisor/supervisor.sock   ; (the path to the socket file)

# 开启web访问
[inet_http_server]           ; inet (TCP) server disabled by default
port = 192.168.1.21:9001     ; (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日志相关配置
[supervisord]
logfile=/etc/supervisor/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=/etc/supervisor/supervisord.pid ; (supervisord pidfile;default supervisord.pid)
nodaemon=false              ; (start in foreground if true;default false)
minfds=1024                 ; (min. avail startup file descriptors;default 1024)
minprocs=200                ; (min. avail process descriptors;default 200)

[rpcinterface:supervisor]
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
[supervisorctl]
serverurl=unix:///etc/supervisor/supervisor.sock ; use a unix:// URL  for a unix socket

 3.单独配置进程守护

vim /etc/supervisor/uwsgi.ini
[program:uwsgi]
command = /usr/local/python3/bin/uwsgi --ini /data/wwwroot/pyweb/uwsgi.ini
;process_name=%(program_name)s ; process_name expr (default %(program_name)s)
;numprocs=1                    ; number of processes copies to start (def 1)
;directory=/tmp                ; directory to cwd to before exec (def no cwd)
;umask=022                     ; umask for process (default None)

# 启动优先级，数值小的优先级高
;priority=999

; supervisord启动时启动，异常退出自动重启
autostart = true
autorestart = true

; 5s没有异常退出,启动失败重试3次
startsecs = 5
startretries = 3

;exitcodes=0,2                 ; 'expected' exit codes for process (default 0,2)
;stopsignal=QUIT               ; signal used to kill process (default TERM)
;stopwaitsecs=10               ; max num secs to wait b4 SIGKILL (default 10)
;user=chrism                   ; setuid to this UNIX account to run the program

; stderr日志重定向到stdout,日志文件，最大值，备份数 
redirect_stderr = true
stdout_logfile = /etc/supervisor/logs/uwsgi.log
stdout_logfile_maxbytes = 50MB
stdout_logfile_backups = 15

;stdout_capture_maxbytes=1MB   ; number of bytes in 'capturemode' (default 0)
;stdout_events_enabled=false   ; emit events on stdout writes (default false)

;redirect_stderr为false时生效，日志文件，最大值，备份数
;stderr_logfile = /etc/supervisor.d/uwsgi_err.log
;stderr_logfile_maxbytes = 50MB
;stderr_logfile_backups = 15

;stderr_capture_maxbytes=1MB   ; number of bytes in 'capturemode' (default 0)
;stderr_events_enabled=false   ; emit events on stderr writes (default false)
;environment=A=1,B=2           ; process environment additions (def no adds)
;serverurl=AUTO                ; override serverurl computation (childutils)

 4.启动，停止，重启

supervisorctl stop uwsgi	# 停止XXX进程
supervisorctl start uwsgi	# 启动XXX进程
supervisorctl restart uwsgi	# 重启XXX进程

supervisorctl update all	# 更新所有进程
supervisorctl start all		# 启动所有进程
supervisorctl restart all	# 重启所有进程
supervisorctl reload		# 修改完配置文件后重新启动supervisor
supervisorctl status		# 查看supervisor监管的进程状态

# 启动服务端
supervisord -c /etc/supervisor/supervisord.conf

 5.开机自启动

vim /lib/systemd/system/supervisord.service

# supervisord service for systemd (CentOS 7.0+)
[Unit]
Description=Supervisor daemon

[Service]
Type=forking
ExecStart=/usr/bin/supervisord -c /etc/supervisor/supervisord.conf
ExecStop=/usr/bin/supervisorctl $OPTIONS shutdown
ExecReload=/usr/bin/supervisorctl $OPTIONS reload
KillMode=process
Restart=on-failure
RestartSec=60s

[Install]
WantedBy=multi-user.target

systemctl start nginx.service		    #启动nginx服务
systemctl enable nginx.service          #设置开机自启动
systemctl disable nginx.service         #停止开机自启动
systemctl status nginx.service          #查看服务当前状态
systemctl restart nginx.service　       #重新启动服务
systemctl list-units --type=service     #查看所有已启动的服务