Supervisor启动并管理Celery相关进程

Supervisor启动并管理Celery相关进程

关于celery在运行过程中， 默认情况下是无法在关机以后自动重启的。所以我们一般开发中会使用supervisor进程监控来对celery程序进行运行监控！当celery没有启动的情况下，supervisor会自动启动celery，所以我们需要安装supervisor并且编写一个supervisor的控制脚本，在脚本中编写对celery进行启动的命令即可。

(资料图)

1. 安装和启动celery任务监控器

针对celery中的任务执行过程，我们也可以安装一个flower的工具来进行监控。

pip install flowercd /home/moluo/Desktop/luffycity/luffycityapi# 保证celery在启动中celery -A luffycityapi worker -l INFO# 再启动celery-flowercelery -A luffycityapi flower --port=5555

http://localhost:5555

attention: 这里启动了测试之后就可以关掉了, 因为后面会使用supervisor启动flower, 防止占用端口

2. supervisor启动celery&flower

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系统守护进程daemon，并监控进程状态,异常退出时能自动重启。

pip install supervisor# 注意：如果supervisor是安装在虚拟环境的，则每次使用supervisor务必在虚拟环境中进行后面所有的操作# conda activate luffycity

supervisor配置文档：http://supervisord.org/configuration.html

对Supervisor初始化配置

# 在项目根目录下创建存储supervisor配置目录，在luffycityapi创建scripts目录，已经创建则忽略conda activate luffycitycd /home/ifeng/Desktop/luffycity/luffycityapimkdir -p scripts && cd scripts# 生成初始化supervisor核心配置文件，echo_supervisord_conf是supervisor安装成功以后，自动附带的。echo_supervisord_conf > supervisord.conf# 可以通过 ls 查看scripts下是否多了supervisord.conf这个文件，表示初始化配置生成了。# 在编辑器中打开supervisord.conf，并去掉最后一行的注释分号。# 修改如下，表示让supervisor自动加载当前supervisord.conf所在目录下所有ini配置文件

supervisord/conf.py，主要修改文件中的39, 40,75,76,169,170行去掉左边注释，其中170修改成当前目录。配置代码：

; 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 ".;; Warning:;  Paths throughout this example file use /tmp because it is available on most;  systems.  You will likely need to change these to locations more appropriate;  for your system.  Some systems periodically delete older files in /tmp.;  Notably, if the socket file defined in the [unix_http_server] section below;  is deleted, supervisorctl will be unable to connect to supervisord.[unix_http_server]file=/tmp/supervisor.sock   ; the path to the socket file;chmod=0700                 ; socket 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); Security Warning:;  The inet HTTP server is not enabled by default.  The inet HTTP server is;  enabled by uncommenting the [inet_http_server] section below.  The inet;  HTTP server is intended for use within a trusted environment only.  It;  should only be bound to localhost or only accessible from within an;  isolated, trusted network.  The inet HTTP server does not support any;  form of encryption.  The inet HTTP server does not use authentication;  by default (see the username= and password= options to add authentication).;  Never expose the inet HTTP server to the public internet.[inet_http_server]         ; inet (TCP) server disabled by defaultport=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=/tmp/supervisord.log ; main log file; default $CWD/supervisord.loglogfile_maxbytes=50MB        ; max main logfile bytes b4 rotation; default 50MBlogfile_backups=10           ; # of main logfile backups; 0 means none, default 10loglevel=info                ; log level; default info; others: debug,warn,tracepidfile=/tmp/supervisord.pid ; supervisord pidfile; default supervisord.pidnodaemon=false               ; start in foreground if true; default falsesilent=false                 ; no logs to stdout if true; default falseminfds=1024                  ; min. avail startup file descriptors; default 1024minprocs=200                 ; min. avail process descriptors;default 200;umask=022                   ; process file creation umask; default 022;user=supervisord            ; setuid to this UNIX account at startup; recommended 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:///tmp/supervisor.sock ; use a unix:// URL  for a unix socketserverurl=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=123                ; 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=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);startsecs=1                   ; # of secs prog must stay up to be running (def. 1);startretries=3                ; max # of serial start failures when starting (default 3);autorestart=unexpected        ; when to restart if exited after running (def: unexpected);exitcodes=0                   ; "expected" exit codes used with autorestart (default 0);stopsignal=QUIT               ; signal used to kill process (default TERM);stopwaitsecs=10               ; max num secs to wait b4 SIGKILL (default 10);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=10     ; # of stdout logfile backups (0 means none, default 10);stdout_capture_maxbytes=1MB   ; number of bytes in "capturemode" (default 0);stdout_events_enabled=false   ; emit events on stdout writes (default false);stdout_syslog=false           ; send stdout to syslog with process name (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 (0 means none, default 10);stderr_capture_maxbytes=1MB   ; number of bytes in "capturemode" (default 0);stderr_events_enabled=false   ; emit events on stderr writes (default false);stderr_syslog=false           ; send stderr to syslog with process name (default false);environment=A="1",B="2"       ; 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=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);startsecs=1                   ; # of secs prog must stay up to be running (def. 1);startretries=3                ; max # of serial start failures when starting (default 3);autorestart=unexpected        ; autorestart if exited after running (def: unexpected);exitcodes=0                   ; "expected" exit codes used with autorestart (default 0);stopsignal=QUIT               ; signal used to kill process (default TERM);stopwaitsecs=10               ; max num secs to wait b4 SIGKILL (default 10);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=10     ; # of stdout logfile backups (0 means none, default 10);stdout_events_enabled=false   ; emit events on stdout writes (default false);stdout_syslog=false           ; send stdout to syslog with process name (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 (0 means none, default 10);stderr_events_enabled=false   ; emit events on stderr writes (default false);stderr_syslog=false           ; send stderr to syslog with process name (default false);environment=A="1",B="2"       ; 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=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 = *.ini

创建luffycity_celery_worker.ini文件，启动我们项目worker主进程

cd /home/ifeng/Desktop/luffycity/luffycityapi/scriptstouch luffycity_celery_worker.ini

[program:luffycity_celery_worker]# 启动命令 conda env listcommand=/home/ifeng/anaconda3/envs/luffycity/bin/celery -A luffycityapi worker -l info -n worker1# 项目根目录的绝对路径[manage.py所在目录路径]，通过pwd查看directory=/home/ifeng/Desktop/luffycity/luffycityapi# 项目虚拟环境enviroment=PATH="/home/ifeng/anaconda3/envs/luffycity/bin"# 运行日志绝对路径stdout_logfile=/home/ifeng/Desktop/luffycity/luffycityapi/logs/celery.worker.info.log# 错误日志绝对路径stderr_logfile=/home/ifeng/Desktop/luffycity/luffycityapi/logs/celery.worker.error.log# 自动启动，开机自启autostart=true# 启动当前命令的用户名user=ifeng# 重启autorestart=true# 进程启动后跑了几秒钟，才被认定为成功启动，默认1startsecs=10# 进程结束后60秒才被认定结束stopwatisecs=60# 优先级，值小的优先启动priority=990

创建luffycity_celery_beat.ini文件，来触发我们的beat定时计划任务

cd /home/ifeng/Desktop/luffycity/luffycityapi/scriptstouch luffycity_celery_beat.ini

[program:luffycity_celery_beat]# 启动命令 conda env listcommand=/home/ifeng/anaconda3/envs/luffycity/bin/celery -A luffycityapi  beat -l info# 项目根目录的绝对路径，通过pwd查看directory=/home/ifeng/Desktop/luffycity/luffycityapi# 项目虚拟环境enviroment=PATH="/home/ifeng/anaconda3/envs/luffycity/bin"# 运行日志绝对路径stdout_logfile=/home/ifeng/Desktop/luffycity/luffycityapi/logs/celery.beat.info.log# 错误日志绝对路径stderr_logfile=/home/ifeng/Desktop/luffycity/luffycityapi/logs/celery.beat.error.log# 自动启动，开机自启autostart=true# 重启autorestart=true# 进程启动后跑了几秒钟，才被认定为成功启动，默认1startsecs=10# 进程结束后60秒才被认定结束stopwatisecs=60# 优先级，值小的优先启动priority=998

创建luffycity_celery_flower.ini文件，来启动我们的celery监控管理工具

cd /home/ifeng/Desktop/luffycity/luffycityapi/scriptstouch luffycity_celery_flower.ini

[program:luffycity_celery_flower]# 启动命令 conda env listcommand=/home/ifeng/anaconda3/envs/luffycity/bin/celery -A luffycityapi flower --port=5555# 项目根目录的绝对路径，通过pwd查看directory=/home/ifeng/Desktop/luffycity/luffycityapi# 项目虚拟环境enviroment=PATH="/home/ifeng/anaconda3/envs/luffycity/bin"# 输出日志绝对路径stdout_logfile=/home/ifeng/Desktop/luffycity/luffycityapi/logs/celery.flower.info.log# 错误日志绝对路径stderr_logfile=/home/ifeng/Desktop/luffycity/luffycityapi/logs/celery.flower.error.log# 自动启动，开机自启autostart=true# 重启autorestart=true# 进程启动后跑了几秒钟，才被认定为成功启动，默认1startsecs=10# 进程结束后60秒才被认定结束stopwatisecs=60# 优先级priority=999

启动supervisor，确保此时你在项目路径下

cd ~/Desktop/luffycity/luffycityapisupervisord -c scripts/supervisord.conf

通过浏览器访问http://127.0.0.1:9001

常用操作

命令	描述
supervisorctl stop program	停止某一个进程，program 就是进程名称，例如在ini文件首行定义的[program:进程名称]
supervisorctl stop all	停止全部进程
supervisorctl start program	启动某个进程，program同上，也支持启动所有的进程
supervisorctl restart program	重启某个进程，program同上，也支持重启所有的进程
supervisorctl reload	载入最新的配置文件，停止原有进程并按新的配置启动、管理所有进程注意：start、restart、stop 等都不会载入最新的配置文件
supervisorctl update	根据最新的配置文件，启动新配置或有改动的进程，配置没有改动的进程不会受影响而重启
ps aux | grep supervisord	查看supervisor是否启动

把supervisor注册到ubuntu系统服务中并设置开机自启

cd /home/ifeng/Desktop/luffycity/luffycityapi/scriptstouch supervisor.service

supervisor.service，配置内容，并保存。需要通过conda env list 查看当前的虚拟环境路径

[Unit]Description=supervisorAfter=network.target[Service]Type=forkingExecStart=/home/ifeng/anaconda3/envs/luffycity/bin/supervisord -n -c /home/ifeng/Desktop/luffycity/luffycityapi/scripts/supervisord.confExecStop=/home/ifeng/anaconda3/envs/luffycity/bin/supervisorctl $OPTIONS shutdownExecReload=/home/ifeng/anaconda3/envs/luffycity/bin/supervisorctl $OPTIONS reloadKillMode=processRestart=on-failureRestartSec=42s[Install]WantedBy=multi-user.target

设置开机自启

# 创建日志文件sudo chmod 766 /tmp/supervisord.logcd /home/ifeng/Desktop/luffycity/luffycityapi/scripts# 赋予权限chmod 766 supervisor.service# 复制到系统开启服务目录下sudo cp supervisor.service /lib/systemd/system/# 设置允许开机自启systemctl enable supervisor.service# 判断是否已经设置为开机自启了systemctl is-enabled  supervisor.service# 通过systemctl查看supervisor运行状态systemctl status supervisor.service# 如果查看服务状态时无法启动，则可以通过重启linux系统来测试是否因为前面的终端已经运行了supervisor导致的。当然，也可以手动关闭supervisor以及相关的服务。# supervisorctl stop all# ps aux | grep supervisord# kill -9 51564  # 注意: 9068是举例的，具体看上一行的查询结果

效果图:

关键词：