安装flask
# pip install flask
创建工作目录
# mkdir /home/myproject #创建项目目录
在myproject下写一个简单的run.py测试
from flask import Flask
app = Flask(__name__)
@app.route('/')
def index():
return 'Hello World'
if __name__ == '__main__':
app.run()
启动
# python run.py
此时，用浏览器访问 http://127.0.0.1:5000 就能看到网页显示 Hello World
安装gunicorn
# pip install gunicorn
使用命令启动
gunicorn -w4 -b 0.0.0.0:5000 run:app
-w 表示开启多少个 worker，-b 表示 gunicorn 开发的访问地址,结束 gunicorn 只需执行 pkill gunicorn.由于退出终端后服务就会停止，所以我们需要另一个工具来帮我们管理。
安装supervisor
# pip install supervisor
安装报错，不支持Python3
Complete output from command python setup.py egg_info:
Supervisor requires Python 2.4 or later but does not work on any version of Python 3. You are using version 3.6.2 (default, Aug 27 2017, 12:28:32)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-11)]. Please install using a supported version.
解决方法：
# pip install virtualenv
# virtualenv --distribute -p /usr/bin/python2 super #super目录可自己命名
# cd super
# source bin/activate
# ./bin/pip install supervisor
生成 supervisor 默认配置
# echo_supervisord_conf > /etc/supervisord.conf
修改supervisorpei配置
; 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=/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=127.0.0.1:9001 ; 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.log
logfile_maxbytes=50MB ; max main logfile bytes b4 rotation; default 50MB
logfile_backups=10 ; # of main logfile backups; 0 means none, 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 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 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=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.
; 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=0,2 ; '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 (0 means none, 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 (0 means none, 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 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.
[program:run]
command=gunicorn -w4 -b 0.0.0.0:5000 run:app ; supervisor启动命令
directory=/home/myproject ; 项目的文件夹路径
startsecs=0 ; 启动时间
stopwaitsecs=0 ; 终止等待时间
autostart=false ; 是否自动启动
autorestart=false ; 是否自动重启
stdout_logfile=/home/myproject/web/log/gunicorn.log ; log 日志
stderr_logfile=/home/myproject/web/log/gunicorn.err ; 错误日志
[include]
files = /etc/supervisor/*.conf
基本使用命令：
supervisord -c supervisor.conf # 通过配置文件启动supervisor
supervisorctl -c supervisor.conf status # 察看supervisor的状态
supervisorctl -c supervisor.conf reload # 重新载入 配置文件
supervisorctl -c supervisor.conf start [all]|[appname] #启动指定/所有 supervisor管理的程序进程
supervisorctl -c supervisor.conf stop [all]|[appname] #关闭指定/所有 supervisor管理的程序进程
启动项目：
# /root/super/bin/supervisord -c /etc/supervisord.conf
# supervisorctl
supervisor> start run #启动
supervisor> stop run #停止
配置和运行好supervisor之后，就可以退出virtulenv了
# deactivate
安装nginx
以centos7为例：
# wget http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm
# yum install nginx-release-centos-7-0.el7.ngx.noarch.rpm
# yum install nginx
修改nginx配置/etc/nginx/conf.d/default.conf
server {
listen 80;
server_name localhost; # 域名或IP
location / {
proxy_pass http://127.0.0.1:5000;
proxy_redirect off;
proxy_set_header Host $host:80;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
}
启动nginx
# /bin/systemctl start nginx.service # 启动nginx
# /bin/systemctl reload nginx.service #重新载入nginx配置
# /bin/systemctl restart nginx.service #重启nginx
参考
http://www.jianshu.com/p/be9dd421fb8d
http://www.cnblogs.com/shijingjing07/p/6024066.html
https://zhuanlan.zhihu.com/p/21262280
