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CentOS 7에서 Supervisor(supervisord 데몬)를 설치하는 방법
UNIX에서 프로세스 상태 제어를 허용하는 시스템
- EPEL 저장소 설치
yum install epel-release
Supervisor 설치
- supervisor 패키지 설치
yum install -y supervisor
- supervisor 버전 정보 확인
supervisord --version
$ supervisord --version
3.4.0
- Supervisor 서비스 시작 및 활성화
systemctl --now enable supervisord
$ systemctl status supervisord
● supervisord.service - Process Monitoring and Control Daemon
Loaded: loaded (/usr/lib/systemd/system/supervisord.service; enabled; vendor preset: disabled)
Active: active (running) since Fri 2021-12-10 12:17:16 KST; 2min 20s ago
Main PID: 1247 (supervisord)
CGroup: /system.slice/supervisord.service
└─1247 /usr/bin/python /usr/bin/supervisord -c /etc/supervisord.conf
Dec 10 12:17:16 sangchul-web-1 systemd[1]: Starting Process Monitoring and Control Daemon...
Dec 10 12:17:16 sangchul-web-1 systemd[1]: Started Process Monitoring and Control Daemon.
- Supervisor 구성 파일(supervisord.conf) 확인 및 편집
vim /etc/supervisord.conf
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$ cat /etc/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
- supervisord 데몬 재기동
systemctl restart supervisord
이제 Supervisor가 CentOS 7에 설치되었으며 프로세스 관리와 로깅을 위해 사용할 수 있습니다. Supervisor는 /etc/supervisord.conf 파일을 사용하여 설정을 관리하며, 관리하려는 각 프로세스에 대한 설정을 추가할 수 있습니다.
참고URL
- Install And Configure Supervisor On Centos 7 : https://fitdevops.in/install-and-configure-supervisor-on-centos-7/
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