本文主要记录了怎样在 Linux 上安装 supervisor， 使用的是 CentOS 7。
Search suggest: linux supervisor
0x01 介绍
supervisor 是用 Python 开发的一套通用的进程管理程序，能将一个普通的命令行进程变为后台 daemon，并监控进程状态，异常退出时能自动重启。
0x02 安装
[root@matrix002 ~]# dnf search supervisor
Last metadata expiration check: 8:28:17 ago on Thu 05 Oct 2023 01:02:52 PM CST.
=================================== Name Exactly Matched: supervisor ====================================
supervisor.noarch : A System for Allowing the Control of Process State on UNIX
================================== Name & Summary Matched: supervisor ===================================
nodejs-supervisor.noarch : A supervisor program for running nodejs programs
====================================== Summary Matched: supervisor ======================================
python-simplevisor.noarch : Python simple daemons supervisor
[root@matrix002 ~]# dnf install supervisor
Last metadata expiration check: 8:28:43 ago on Thu 05 Oct 2023 01:02:52 PM CST.
Dependencies resolved.
=========================================================================================================
Package Arch Version Repository Size
=========================================================================================================
Installing:
supervisor noarch 3.4.0-1.el7 epel 498 k
Installing dependencies:
python-backports x86_64 1.0-8.el7 base 5.8 k
python-backports-ssl_match_hostname noarch 3.5.0.1-1.el7 base 13 k
python-ipaddress noarch 1.0.16-2.el7 base 34 k
python-setuptools noarch 0.9.8-7.el7 base 397 k
python-meld3 x86_64 0.6.10-1.el7 epel 73 k
Transaction Summary
=========================================================================================================
Install 6 Packages
Total download size: 1.0 M
Installed size: 5.1 M
Is this ok [y/N]: y
Downloading Packages:
(1/6): python-backports-1.0-8.el7.x86_64.rpm 50 kB/s | 5.8 kB 00:00
(2/6): python-backports-ssl_match_hostname-3.5.0.1-1.el7.noarch.rpm 109 kB/s | 13 kB 00:00
(3/6): python-ipaddress-1.0.16-2.el7.noarch.rpm 178 kB/s | 34 kB 00:00
(4/6): python-setuptools-0.9.8-7.el7.noarch.rpm 1.1 MB/s | 397 kB 00:00
(5/6): python-meld3-0.6.10-1.el7.x86_64.rpm 139 kB/s | 73 kB 00:00
(6/6): supervisor-3.4.0-1.el7.noarch.rpm 792 kB/s | 498 kB 00:00
---------------------------------------------------------------------------------------------------------
Total 396 kB/s | 1.0 MB 00:02
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
Preparing : 1/1
Installing : python-meld3-0.6.10-1.el7.x86_64 1/6
Installing : python-ipaddress-1.0.16-2.el7.noarch 2/6
Installing : python-backports-1.0-8.el7.x86_64 3/6
Installing : python-backports-ssl_match_hostname-3.5.0.1-1.el7.noarch 4/6
Installing : python-setuptools-0.9.8-7.el7.noarch 5/6
Installing : supervisor-3.4.0-1.el7.noarch 6/6
Running scriptlet: supervisor-3.4.0-1.el7.noarch 6/6
Verifying : python-backports-1.0-8.el7.x86_64 1/6
Verifying : python-backports-ssl_match_hostname-3.5.0.1-1.el7.noarch 2/6
Verifying : python-ipaddress-1.0.16-2.el7.noarch 3/6
Verifying : python-setuptools-0.9.8-7.el7.noarch 4/6
Verifying : python-meld3-0.6.10-1.el7.x86_64 5/6
Verifying : supervisor-3.4.0-1.el7.noarch 6/6
Installed:
supervisor-3.4.0-1.el7.noarch python-backports-1.0-8.el7.x86_64
python-backports-ssl_match_hostname-3.5.0.1-1.el7.noarch python-ipaddress-1.0.16-2.el7.noarch
python-setuptools-0.9.8-7.el7.noarch python-meld3-0.6.10-1.el7.x86_64
Complete!
0x03 配置
启动
sudo systemctl status supervisord
sudo systemctl enable supervisord
cd /etc
sudo chown -R chengchao /etc/supervisord.d
cd /etc/supervisord.d
touch demo-promethues.ini
vim demo-promethues.ini
[program:demo]
command=/usr/local/jvm/jdk-17/bin/java -jar /home/chengchao/demo-prometheus-0.0.1-SNAPSHOT.jar
directory=/home/chengchao
user=chengchao
stopsignal=Kill
autostart=true
autorestart=true
startsecs=3
stderr_logfile=/home/chengchao/demo-prometheus.err.log
stdout_logfile=/home/chengchao/demo-prometheus.out.log
0x04 命令
- 查看进程状态：
sudo supervisorctl status - 启动服务：
sudo supervisorctl start Test - 停止服务：
sudo supervisorctl stop Test - 重启服务：
sudo supervisorctl restart Test - 配置文件修改后重新加载：
sudo supervisorctl update - 重启配置中的所有进程：
sudo supervisorctl reload
0x05 其他
- 查看 java 的位置：
which java
普通用户可运行, 需要修改 sock 文件的路径和 owner
sudo systemctl stop supervisord
sudo vim /etc/supervisord.conf
[unix_http_server]
file=/works/run/supervisor/supervisor.sock
chmod=0700
chown=chengchao:supervisor
[supervisorctl]
serverurl=unix:///works/run/supervisor/supervisor.sock
sudo systemctl start supervisord
supervisorctl status
demo RUNNING pid 2735, uptime 0:04:41
Appendix
service 文件
[root@matrix002 system]# cat supervisord.service
[Unit]
Description=Process Monitoring and Control Daemon
After=rc-local.service nss-user-lookup.target
[Service]
Type=forking
ExecStart=/usr/bin/supervisord -c /etc/supervisord.conf
[Install]
WantedBy=multi-user.target
配置文件：
[root@matrix002 etc]# cat supervisord.conf
; Sample supervisor config file.
[unix_http_server]
file=/var/run/supervisor/supervisor.sock ; (the path to the socket file)
;chmod=0700 ; sockef file mode (default 0700)
;chown=nobody:nogroup ; socket file uid:gid owner
;username=user ; (default is no username (open server))
;password=123 ; (default is no password (open server))
;[inet_http_server] ; inet (TCP) server disabled by default
;port=127.0.0.1:9001 ; (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=/var/log/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=/var/run/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)
;umask=022 ; (process file creation umask;default 022)
;user=chrism ; (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)
; 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/supervisor.sock ; use a unix:// URL for a unix socket
;serverurl=http://127.0.0.1:9001 ; use an http:// url to specify an inet socket
;username=chris ; should be same as http_username if set
;password=123 ; should be same as http_password if set
;prompt=mysupervisor ; cmd line prompt (default "supervisor")
;history_file=~/.sc_history ; use readline history if available
; The below sample program section shows all possible program subsection values,
; create one or more 'real' program: sections to be able to control them under
; supervisor.
;[program:theprogramname]
;command=/bin/cat ; the program (relative uses PATH, can take args)
;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)
;priority=999 ; the relative start priority (default 999)
;autostart=true ; start at supervisord start (default: true)
;autorestart=true ; retstart at unexpected quit (default: true)
;startsecs=10 ; number of secs prog must stay running (def. 1)
;startretries=3 ; max # of serial start failures (default 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
;redirect_stderr=true ; redirect proc stderr to stdout (default false)
;stdout_logfile=/a/path ; stdout log path, NONE for none; default AUTO
;stdout_logfile_maxbytes=1MB ; max # logfile bytes b4 rotation (default 50MB)
;stdout_logfile_backups=10 ; # of stdout logfile backups (default 10)
;stdout_capture_maxbytes=1MB ; number of bytes in 'capturemode' (default 0)
;stdout_events_enabled=false ; emit events on stdout writes (default false)
;stderr_logfile=/a/path ; stderr log path, NONE for none; default AUTO
;stderr_logfile_maxbytes=1MB ; max # logfile bytes b4 rotation (default 50MB)
;stderr_logfile_backups=10 ; # of stderr logfile backups (default 10)
;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)
; The below sample eventlistener section shows all possible
; eventlistener subsection values, create one or more 'real'
; eventlistener: sections to be able to handle event notifications
; sent by supervisor.
;[eventlistener:theeventlistenername]
;command=/bin/eventlistener ; the program (relative uses PATH, can take args)
;process_name=%(program_name)s ; process_name expr (default %(program_name)s)
;numprocs=1 ; number of processes copies to start (def 1)
;events=EVENT ; event notif. types to subscribe to (req'd)
;buffer_size=10 ; event buffer queue size (default 10)
;directory=/tmp ; directory to cwd to before exec (def no cwd)
;umask=022 ; umask for process (default None)
;priority=-1 ; the relative start priority (default -1)
;autostart=true ; start at supervisord start (default: true)
;autorestart=unexpected ; restart at unexpected quit (default: unexpected)
;startsecs=10 ; number of secs prog must stay running (def. 1)
;startretries=3 ; max # of serial start failures (default 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
;redirect_stderr=true ; redirect proc stderr to stdout (default false)
;stdout_logfile=/a/path ; stdout log path, NONE for none; default AUTO
;stdout_logfile_maxbytes=1MB ; max # logfile bytes b4 rotation (default 50MB)
;stdout_logfile_backups=10 ; # of stdout logfile backups (default 10)
;stdout_events_enabled=false ; emit events on stdout writes (default false)
;stderr_logfile=/a/path ; stderr log path, NONE for none; default AUTO
;stderr_logfile_maxbytes=1MB ; max # logfile bytes b4 rotation (default 50MB)
;stderr_logfile_backups ; # of stderr logfile backups (default 10)
;stderr_events_enabled=false ; emit events on stderr writes (default false)
;environment=A=1,B=2 ; process environment additions
;serverurl=AUTO ; override serverurl computation (childutils)
; The below sample group section shows all possible group values,
; create one or more 'real' group: sections to create "heterogeneous"
; process groups.
;[group:thegroupname]
;programs=progname1,progname2 ; each refers to 'x' in [program:x] definitions
;priority=999 ; the relative start priority (default 999)
; 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 = supervisord.d/*.ini
以下是参考链接。
EOF