上次学习了 Windows 7 X64+VMware+ubuntu-18.04.3+Visual Studio 2017部署.Net Core 2.2过程详细图解
说明:
1、网上很多文章按顺序操作仍不能正常进行,为方便和我一样的菜鸟学习,本人原创的文章均通过自己亲自操作的截图。
2、本文的操作均是在root用户下进行的。如果用zdr用户,将会因权限问题出现意想不到的错误。
所以,安装配置supervisor建议使用root用户。
关于配置root用户登录,请参见:
ubuntu-18.04.3配置root用户并登录
在Ubuntu 18.04下成功部署了asp.net core 2的网站,但由于网站的服务是在控制台下启动的,控制台关闭后,网站即不能访问。
这次的学习目的就是通过supervisor进程守护,实现网站托管,让网站的服务保持在运行状态。
先看看最后的运行结果:
本文达到以下几个目的:
(1)配置Supervisor的Web管理页面,即开启Supervisor 图形界面来供我们管理进程和任务
(2)配置上一篇文中部署的dotnetcoredemo1网站托管
1、关于托管和进程守护和supervisor基础命令
有很多方法添加进程守护,其中用supervisor是一种。
Supervisor是采用 Python(2.4+) 开发的,它是一个允许用户管理 基于 Unix 系统进程的 Client/Server 系统,提供了大量功能来实现对进程的管理。
说明:supervisor是用python开发的,python版本要求2.4以上, 且不能是python3, supervisor不能运行在任何python3版本上(网上说的,未验证是否正确。)
可以先用python --version查看一下python的版本。
使用supervisor守护进程也有几种方法:
(1)直接修改配置文件supervisor.conf进行
(2)对每一个网站添加一个配置文件,如:dotnetcoredemo1.conf,将dotnetcoredemo1.conf保存在/etc/supervisor/conf.d/目录下,并以.conf作为扩展名。然后通过在supervisor.confkh r include小节的配置,将dotnetcoredemo1.conf包含进来。(推荐用这种方法。)
supervisor常用命令:
supervisorctl start programxxx,启动某个进程
supervisorctl restart programxxx,重启某个进程
supervisorctl stop groupworker: ,重启所有属于名为groupworker这个分组的进程(start,restart同理)
supervisorctl stop all,停止全部进程,注:start、restart、stop都不会载入最新的配置文件,修改配置文件后,请使用supervisorctl reload加载新的配置。
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。
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。
supervisor启动和停止的日志文件存放在/var/log/supervisor/supervisord.log
查看日志 :
注意:显式用stop停止掉的进程,用reload或者update都不会自动重启
2、为方便查看日志,修改Ubuntu 18.04系统日期时间
解决修改日期时间无效问题:
修改系统日期时间无效,采用下面的办法:
[email protected]:~# date -s "2019-12-17 11:45:45"
Tue Dec 17 11:45:45 PST 2019
[email protected]:~# date
Mon Dec 16 19:49:12 PST 2019 (可以看出修改日期时间后运行date后看到的还是修改前的日期时间)
[email protected]:~# sudo cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
[email protected]:~# date -s "2019-12-17 11:45:45"
Tue Dec 17 11:45:45 CST 2019
[email protected]:~# date
Tue Dec 17 11:49:52 CST 2019
Reboot重启系统后,可以看到日期修改过来了。
在安装supervisor先测试一下上一次用zdr用户部署的网站是否仍可正常运行。
测试结果:在root用户下,仍可正常运行。
dotnet /home/zdr/dotnetcoredemo1/DotNetCoreDemo1.dll
3、supervisor安装
sudo apt-get install supervisor
supervisor安装完成后会生成三个执行程序:supervisortd、supervisorctl、echo_supervisord_conf,分别是supervisor的守护进程服务(用于接收进程管理命令)、客户端(用于和守护进程通信,发送管理进程的指令)、生成初始配置文件程序。
通过这种方式安装之后 supervisord会被安装到/etc/bin
并且会自动加入到系统服务里面 随着系统启动而启动
主配置文件是/etc/supervisor/里面的supervisord.conf文件。
安装完成后,会自动创建文件夹: /ect/supervisor/conf.d/
可以看出 /ect/supervisor/conf.d/目录为空目录。
可以用echo_supervisord_conf命令查看supervisor的配置。
echo_supervisord_conf > /etc/supervisor/supervisord.conf
生成初始配置文件,文件名为supervisord.conf
4、修改supervisord.conf文件
gedit /etc/supervisor/supervisord.conf
(1)开放supervisor的Web管理页面,只需要将下面2行注释去掉即可。
[inet_http_server]
port=127.0.0.1:9002
然后重新启动一下supervisor:
supervisord -c /etc/supervisor/supervisord.conf
supervisorctl reload
即可通过浏览器访问127.0.0.1:9002
(2)将dotnetcoredemo网站的配置文件Include进来
supervisord.conf最下面的2行流程去掉:
[include]
files = /home/zdr/dotnetcoredemo1/dotnetcoredemo1.conf
5、创建配置文件:dotnetcoredemo1.conf文件。
针对上次部署成功的dotnetcoredemo1 网站,在/home/zdr/dotnetcoredemo1/目录下,新建一个文本文件:dotnetcoredemo1.conf
gedit /home/zdr/dotnetcoredemo1/dotnetcoredemo1.conf
配置文件dotnetcoredemo1.conf如下:
[program:dotnetcoredemo1]
command = dotnet /home/zdr/dotnetcoredemo1/DotNetCoreDemo1.dll
directory = /home/zdr/dotnetcoredemo1
environment = ASPNETCORE__ENVIRONMENT=Production
user = zdr
stopsignal = INT
autostart = true
autorestart = true
startsecs = 1
stderr_logfile = /home/zdr/dotnetcoredemo1/log/err.log
stdout_logfile = /home/zdr/dotnetcoredemo1/log/out.log
日志文件放在/home/zdr/dotnetcoredemo1/log/目录下,所要,dotnetcoredemo1目录下,新创建了一个文件夹log
6、加载配置文件,并重新启动supervisor
supervisorctl reload
ps -ef | grep supervisord
Pid=2442
kill -s SIGTERM 2442
重新执行
supervisord -c /etc/supervisor/supervisord.conf
查看状态:
/home/zdr/supervisor/supervisorctl status
查看启动日志:
gedit /var/log/supervisor/supervisord.log
gedit /home/zdr/dotnetcoredemo1/log/out.log
gedit /home/zdr/dotnetcoredemo1/log/err.log
部署的asp.net网站已经可以访问了。
7、完整的supervisord.conf文件和dotnetcoredemo1.conf文件内容如下:
下面将配置好的supervisord.conf文件和dotnetcoredemo1.conf文件附在下面,供参考。
编辑supervisord.conf文件,命令:
gedit /etc/supervisor/supervisord.conf
; 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".
; - Comments must have a leading space: "a=b ;comment" not "a=b;comment".
[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))
[inet_http_server] ; inet (TCP) server disabled by default
port=127.0.0.1:9002 ; (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.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=/tmp/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:///tmp/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)
;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=0,2 ; 'expected' exit codes used with autorestart (default 0,2)
;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 (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)
;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=0,2 ; 'expected' exit codes used with autorestart (default 0,2)
;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 (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=10 ; # 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 = /home/zdr/dotnetcoredemo1/dotnetcoredemo1.conf
编辑dotnetcoredemo1.conf文件:命令:
gedit /home/zdr/dotnetcoredemo1/dotnetcoredemo1.conf
[program:dotnetcoredemo1]
command = dotnet /home/zdr/dotnetcoredemo1/DotNetCoreDemo1.dll
directory = /home/zdr/dotnetcoredemo1
environment = ASPNETCORE__ENVIRONMENT=Production
user = root
stopsignal = INT
autostart = true
autorestart = true
startsecs = 1
stderr_logfile = /home/zdr/dotnetcoredemo1/log/err.log
stdout_logfile = /home/zdr/dotnetcoredemo1/log/out.log
查看日志:
gedit /home/zdr/dotnetcoredemo1/log/err.log
没有错误日志(空文件)
gedit /home/zdr/dotnetcoredemo1/log/out.log
上面的配置在Ubuntu重新启动后,不需要进行任何操作,
页面http://127.0.0.1:5000/和http://127.0.0.1:9002/即可访问。
下一篇将研究:用Nginx实现Ubuntu18.04下的Asp.net Core网站部署