Centos 7 next deployment Django + uWSGI + Nginx

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## Environment:
Python: 3.6

Django: 2.1

OS: CentOS 7 x86_64

uwsgi: 2.0.17

## installation Python3.6

* Do not remove the built-in python2.7, otherwise there will be problems, because many centos need to rely on the system comes with software Python
* install the install OpenSSL-dependent tools devel bzip2 yum devel expat-devel-gdbm-devel the readline-devel-devel MySQL SQLite devel-GCC-GCC-devel devel Python
* Download wget  https://www.python.org/ftp/ Python / 3.6.5 / 3.6.5.tgz the Python-
* -zxvf the Python-3.6.5.tgz extracting the tar
Music Videos the Python-3.6.5 / usr / local directory * to move the discharge software specification
* installation:
* CD /usr/local/Python-3.6.5/
* ./configure
* the make 
* the make install

* verify
* Python -V

* Source /home/cosmic/py3.6env/bin/activate enter the virtual environment
## installation uWSGI
* Installation PIP the install to uwsgi 
* verification 

`` `
DEF file application (the env, The start_response):
    The start_response ( '200 is the OK', [( 'the Content-the Type', 'text / HTML')])
    return [B" the Hello the Django "]
` ``
`` `
uwsgi --http: 8001 --wsgi-File test.py
` ``
browser to access the web page can be displayed Hello Django then there is no problem
* If the installation fails
* deactivate exit the virtual environment
* yum install -y python -devel 
* the easy_install to uwsgi


## mounting the Nginx

* configuration source
vi /etc/yum.repos.d/nginx.repo added the following content
    `` `
    [Nginx]
    name = Nginx the repo
    BaseURL = HTTP: //nginx.org/packages/ Mainline / CentOS /. 7 / the x86_64 /
    gpgcheck = 0
    Enabled. 1 =
    `` `
    
   gpkcheck = 0 represents the source of this package is not downloaded rpm for verification;
   enable. 1 = enable this represents a source.
   
   
 Yum the install Nginx *
 * start Nginx:
   systemctl Start Nginx
   
 * modify the default port number (the default is 80)
  `` `
    Vim /etc/nginx/conf.d/default.conf


    Server {
        the listen 8089;
        the listen [::]: 8089;
        ...
        ...
    }
    `` `
    
 * systemctl restart nginx restart nginx, direct access http: // ip: 8089 could see nginx welcome screen can be.
 
 ## Configuration
 
 Configuration parameters django uwsgi start of
 
 `` `
 Vim django_uwsgi.ini

[uwsgi]
# django uwsgi access must be configured by HTTP
# uwsgi by nginx request to access must be configured to django Socket
# 9000 is the port number django
socket =: 9000

# Web project root
chdir = / Home / root / pydj / django_one

# Module specified item comes with a configuration file location wsgi
Module = django_one.wsgi

# allowed the main process
Master to true =

# Number of open processes
Processes = 3

# server exits automatic cleaning environment
Vacuum to true =
 `` `
 
 ## arranged Nginx
 
 ` ``
 VI /etc/nginx/conf.d/default.conf

# end of the file, add a new Server

Server {
    the listen 8089;
    the listen [::]: 8089;
    server_name 127.0.0.1 192.168.10.114;

    LOCATION / {
        the include / etc / Nginx / uwsgi_params;
        uwsgi_pass 127.0.0.1:9000;
    }
    LOCATION / index / {
        the root / index /;
    }
    LOCATION / static {
        Alias / Home / the root / pydj / django_one / Sign / static;
    }

}
 `` `
 
 * 8089 is the external port number
* server_name nginx agent uwsgi external IP
* 8089 127.0.0.1:9000 i.e. when received nginx request port directly to forward the request to 127.0.0.1:9000
## uwsgi start Django
`` `
# into the project root directory
/ Home / root / pydj / django_one

# start
uwsgi --ini django_uwsgi.ini
` ``

## restart the Nginx

systemctl the restart Nginx

secrtcrt
filiza
Xshell

mounted

PIP Freeze> requirements.txt
the Django == 2.1.2
Django-== 2.8.1 of haystack
the mysqlclient == 1.3.13
the pytz == 2018.5
uWSGI == 2.0.17.1
Whoosh == 2.7. 4


Port -l the semanage | grep http_port_t

 # MySQL may be a local area network to access any host
MySQL> MySQL use; 
MySQL> Update User SET Host = '%' WHERE User = 'the root'; 
MySQL> SELECT Host, User from User; 
MySQL> the flush privileges ;


* after modifying the setting file
* python manage.py collectstatic collect admin static files
* modify uwsgi.ini
* start
* uwsgi --ini django_uwsgi.ini --buffer-size 32768

* add nginx configuration file
* restart nginx
*