centos通过Supervisor配置.net core守护进程

安装Supervisor

easy_install supervisor

生成默认配置文件

echo_supervisord_conf > /etc/supervisord.conf

生成的配置文件默认使用/tmp文件，会被系统清理掉，需将所有使用/tmp/目录的路径改为/var/run/目录

; Sample supervisor config file.
;
; For more information on the config file, please see:
; http://supervisord.org/configuration.html
;
; Notes:
;  - Shell expansion ("~" or "$HOME") is not supported.  Environment
;    variables can be expanded using this syntax: "%(ENV_HOME)s".
;  - Quotes around values are not supported, except in the case of
;    the environment= options as shown below.
;  - Comments must have a leading space: "a=b ;comment" not "a=b;comment".
;  - Command will be truncated if it looks like a config file comment, e.g.
;    "command=bash -c 'foo ; bar'" will truncate to "command=bash -c 'foo ".

[unix_http_server]
file=/var/run/supervisor.sock   ; the path to the socket file
;chmod=                 ; socket file mode (default )
;chown=nobody:nogroup       ; socket file uid:gid owner
;username=user              ; default is no username (open server)
;password=               ; default is no password (open server)

[inet_http_server]         ; inet (TCP) server disabled by default
port=*:        ; ip_address:port specifier, *:port for all iface
username=user              ; default is no username (open server)
password=               ; default is no password (open server)

[supervisord]
logfile=/var/log/supervisor.log ; main log file; default $CWD/supervisord.log
logfile_maxbytes=50MB        ; max main logfile bytes b4 rotation; default 50MB
logfile_backups=           ; # of main logfile backups;  means none, default
loglevel=info                ; log level; default info; others: debug,warn,trace
pidfile=/var/run/supervisor.pid ; supervisord pidfile; default supervisord.pid
nodaemon=false               ; start in foreground if true; default false
minfds=                  ; min. avail startup file descriptors; default
minprocs=                 ; min. avail process descriptors;default
;umask=                   ; process file creation umask; default
;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 rpcinterface:supervisor 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:x] sections.

[rpcinterface:supervisor]
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface

; The supervisorctl section configures how supervisorctl will connect to
; supervisord.  configure it match the settings in either the unix_http_server
; or inet_http_server section.

[supervisorctl]
serverurl=unix:///var/run/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 in [*_http_server] if set
;password=                ; should be same as in [*_http_server] if set
;prompt=mysupervisor         ; cmd line prompt (default "supervisor")
;history_file=~/.sc_history  ; use readline history if available

; The sample program section below 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=                    ; number of processes copies to start (def )
;directory=/tmp                ; directory to cwd to before exec (def no cwd)
;umask=                     ; umask for process (default None)
;priority=                  ; the relative start priority (default )
;autostart=true                ; start at supervisord start (default: true)
;startsecs=                   ; # of secs prog must stay up to be running (def. )
;startretries=                ; max # of serial start failures when starting (default )
;autorestart=unexpected        ; when to restart if exited after running (def: unexpected)
;exitcodes=,                 ; 'expected' exit codes used with autorestart (default ,)
;stopsignal=QUIT               ; signal used to kill process (default TERM)
;stopwaitsecs=               ; max num secs to wait b4 SIGKILL (default )
;stopasgroup=false             ; send stop signal to the UNIX process group (default false)
;killasgroup=false             ; SIGKILL the UNIX process group (def false)
;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=     ; # of stdout logfile backups ( means none, default )
;stdout_capture_maxbytes=1MB   ; number of bytes in 'capturemode' (default )
;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 ( means none, default )
;stderr_capture_maxbytes=1MB   ; number of bytes in 'capturemode' (default )
;stderr_events_enabled=false   ; emit events on stderr writes (default false)
;environment=A="",B=""       ; process environment additions (def no adds)
;serverurl=AUTO                ; override serverurl computation (childutils)

; The sample eventlistener section below shows all possible eventlistener
; subsection values.  Create one or more 'real' eventlistener: sections to be
; able to handle event notifications sent by supervisord.

;[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=                    ; number of processes copies to start (def )
;events=EVENT                  ; event notif. types to subscribe to (req'd)
;buffer_size=                ; event buffer queue size (default )
;directory=/tmp                ; directory to cwd to before exec (def no cwd)
;umask=                     ; umask for process (default None)
;priority=-                   ; the relative start priority (default -)
;autostart=true                ; start at supervisord start (default: true)
;startsecs=                   ; # of secs prog must stay up to be running (def. )
;startretries=                ; max # of serial start failures when starting (default )
;autorestart=unexpected        ; autorestart if exited after running (def: unexpected)
;exitcodes=,                 ; 'expected' exit codes used with autorestart (default ,)
;stopsignal=QUIT               ; signal used to kill process (default TERM)
;stopwaitsecs=               ; max num secs to wait b4 SIGKILL (default )
;stopasgroup=false             ; send stop signal to the UNIX process group (default false)
;killasgroup=false             ; SIGKILL the UNIX process group (def false)
;user=chrism                   ; setuid to this UNIX account to run the program
;redirect_stderr=false         ; redirect_stderr=true is not allowed for eventlisteners
;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=     ; # of stdout logfile backups ( means none, default )
;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 ( means none, default )
;stderr_events_enabled=false   ; emit events on stderr writes (default false)
;environment=A="",B=""       ; process environment additions
;serverurl=AUTO                ; override serverurl computation (childutils)

; The sample group section below 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=                  ; the relative start priority (default )

; 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 = relative/directory/*.ini

[program:CentOSWebApp]
command=dotnet CentOSWebApp.dll ; 运行程序的命令
directory=/home/app/app1/ ; 执行前要不要先cd到目录去，一般不用
autorestart = true   ; 程序异常退出后自动重启
autostart=true       ; 随着supervisord的启动而启动
startretries = 10     ; 启动失败自动重试次数，默认是 3
numprocs=1           ; 启动几个进程
stderr_logfile=/var/log/CentOSWebApp.err.log ; 错误日志文件
stdout_logfile=/var/log/CentOSWebApp.out.log ; 输出日志文件
environment=ASPNETCORE_ENVIRONMENT=Production ; 进程环境变量
user=root ; 进程执行的用户身份
stopsignal=KILL ; 用来杀死进程的
stopsignal=INT

守护单个program的内容一般如下：

[program:CentOSWebApp]

command=dotnet CentOSWebApp.dll ; 运行程序的命令

directory=/home/app/app1/ ; 执行前要不要先cd到目录去，一般不用

autorestart = true ; 程序异常退出后自动重启

autostart=true ; 随着supervisord的启动而启动

startretries = 10 ; 启动失败自动重试次数，默认是 3

numprocs=1 ; 启动几个进程

stderr_logfile=/var/log/CentOSWebApp.err.log ; 错误日志文件

stdout_logfile=/var/log/CentOSWebApp.out.log ; 输出日志文件

environment=ASPNETCORE_ENVIRONMENT=Production ; 进程环境变量

user=root ; 进程执行的用户身份

stopsignal=KILL ; 用来杀死进程的

stopsignal=INT

启动supervisord，查看是否生效

supervisord -c/etc/supervisord.conf

如果服务已启动，修改配置文件可用“supervisorctl reload”命令来使其生效

supervisorctl reload

配置Supervisor开机启动

新建一个“supervisord.service”文件

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

[Service]
Type=forking
ExecStart=/usr/bin/supervisord -c/etc/supervisord.conf
ExecStop=/usr/bin/supervisorctl $OPTIONS shutdown
ExecReload=/usr/bin/supervisorctl $OPTIONS reload
KillMode=process
Restart=on-failure
RestartSec=42s

[Install]
WantedBy=multi-user.target

将文件拷贝至：“/usr/lib/systemd/system/”

执行命令：systemctl enable supervisord

执行命令：systemctl is-enabled supervisord #来验证是否为开机启动