Nginx+gunicorn Project Deployment

1.1 Installing a virtual environment Create a folder

mkdir data          目录文件夹cd data             进入data文件夹mkdir nginx         创建安装nginx的文件夹mkdir server        存放代码的文件夹    mkdir logs          存放日志的文件夹mkdir backup        备份代码的文件夹mkdir softs         软件存放的位置mkdir virtual       虚拟环境的位置mkdir scripts       脚本的运行位置mkdir scp_codes     上传的代码

Install the virtual environment

apt-get install python-virtualenv （ubuntu已经安装过，可省略）virtualenv -p /usr/bin/python3 api_server (采用他，安装在本文件夹,)mkvirtualenv api_server(不要用它，它会自己安装到其他地方)source api_server/bin/activate   (在虚拟环境的active进入虚拟环境)安装的软件会在虚拟环境下的bin目录下

Installation of Nginx Environment

解压cd ~/data/softs/   tar xf pcre-8.39.tar.gz配置cd ~/data/softs/pcre-8.39./configure编译make安装sudo make install

Installing Nginx

解压cd ~/data/softs/tar xf nginx-1.10.2.tar.gz配置cd nginx-1.10.2/./configure --prefix=/root/data/nginx    安装在root/data下面的nginx文件夹编译make安装make install查看进程ps aux | grep nginx

Nginx Simple Basic operation

检查sudo ~/data/nginx/sbin/nginx -t开启sudo ~/data/nginx/sbin/nginx关闭sudo ~/data/nginx/sbin/nginx -s stop重载sudo ~/data/nginx/sbin/nginx -s reload

1, first install Gunicorn

pip install gunicorn复制代码

2, in the entrance file App.run () plus the following

from werkzeug.contrib.fixers import ProxyFixapp.wsgi_app = ProxyFix(app.wsgi_app)复制代码

Cases:

from flask import Flaskapp = Flask(__name__)@app.route('/')def hello_world():    return 'Hello World!'if __name__ == '__main__':    from werkzeug.contrib.fixers import ProxyFix    app.wsgi_app = ProxyFix(app.wsgi_app)    app.run()复制代码

3. Start Gunicorn

The simplest way to

gunicorn 入口文件名:app复制代码

The default is to listen 127.0.0.1:8000

If you are dealing with high concurrency, you need to open multiple processes and modify the listening port of the picture

gunicorn -w 4 -b 127.0.0.1:8000 入口文件名:app复制代码保存在supervisord 里面的etc/supervisord.d目录下添加一个logo.ini配置文件

Add a configuration file

Vim/etc/supervisord.d/logo.ini

[program:logo_api_server]directory = /data/api-service #代码存放的地方command = /usr/local/python3/bin/gunicorn -w 4 -b :5005 LogoSeverApi:app  #-w的参数根据CPU的核数来定，不要超过CPU的核数#process_name = %(process_num)s  ; process_name expr (default %(program_name)s)#process_name = %(process_num)s#numprocs = 4                    ; number of processes copies to start (def 1)numprocs_start = 1autostart = true                ; start at supervisord start (default: true)autorestart = unexpected        ; whether/when to restart (default: unexpected)startsecs = 10                  ; number of secs prog must stay running (def. 1)startretries = 3                ; max # of serial start failures (default 3)user = devredirect_stderr = truestdout_logfile_maxbytes = 20MBstdout_logfile_backups = 20stdout_logfile = /data/api-service/logs/supervisor.log

This enables 4 processes to process HTTP requests at the same time, improving the efficiency and performance of the system. You can also change the port 8000 to another

In real-world applications, you should start the service in a way that is performed in the background

nohup 启动服务的命令 &复制代码

That

nohup gunicorn -w 4 -b 127.0.0.1:8000 入口文件名:app &复制代码

At this point you can access the 127.0.0.1:8000 on the browser of this machine, and the Hello world! will appear on the browser.

Note: If you want to access through the Internet, the IP will be changed to the intranet IP

4. Configure Nginx

The configuration changes to

server {    listen 80;    server_name example.org; # 这是HOST机器的外部域名，用地址也行    location / {        proxy_pass http://127.0.0.1:8000; # 这里是指向 gunicorn host 的服务地址        proxy_set_header Host $host;        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;    } }复制代码

80 ports can be forwarded to port 8000 after this is started.

5. Check the configuration

nginx -t复制代码

If the content appears, the configuration is successful

nginx: the configuration file /etc/nginx/nginx.conf syntax is oknginx: configuration file /etc/nginx/nginx.conf test is successful复制代码

6. Update Nginx Configuration

nginx -s reload复制代码

On the premise that the Gunicorn is already running, the 127.0.0.1 will appear in the browser. Hello world!

7. Restart Gunicorn

Input command

pstree -ap|grep gunicorn

1.2: Install wget (skip if already installed)

1.3: Install python3.6 (skip if already installed)

2.1. Download python3.6

wget http://cdn.npm.taobao.org/dist/python/3.6.5/Python-3.6.5.tgz

2.2. Unzip the installation package

tar -zxvf Python-3.6.5.tgz

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2.3 Installing the python3.6 dependency package

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2.4. Configure the installation path to/usr/local/python3

./configure --prefix=/usr/local/python3 --with-sslmake && make install

2.5. Add the path of the python3.6 to path

echo "export PATH=$PATH:/usr/local/python3/bin/" >>/etc/profilesource /etc/profile

2.6. Establishing a soft connection

ln -s /usr/local/python3/bin/python3 /usr/bin/python3ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3

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2.7. Installing Supervisor

yum install supervisor -y

If you report the following error, install the Yum extension source

Installing the Yum extension source

yum install epel-*

2.8. Add the Supervisor Configuration

Add a Logo.ini configuration file under the/ETC/SUPERVISORD.D directory

Vim/etc/supervisord.d/logo.ini

The contents are as follows:

[program:logo_api_server]directory = /data/api-service #代码存放的地方command = /usr/local/python3/bin/gunicorn -w 4 -b :5005 LogoSeverApi:app  #-w的参数根据CPU的核数来定，不要超过CPU的核数\#process_name = %(process_num)s  ; process_name expr (default %(program_name)s)\#process_name = %(process_num)s\#numprocs = 4                    ; number of processes copies to start (def 1)numprocs_start = 1autostart = true                ; start at supervisord start (default: true)autorestart = unexpected        ; whether/when to restart (default: unexpected)startsecs = 10                  ; number of secs prog must stay running (def. 1)startretries = 3                ; max # of serial start failures (default 3)user = devredirect_stderr = truestdout_logfile_maxbytes = 20MBstdout_logfile_backups = 20stdout_logfile = /data/api-service/logs/supervisor.log

2.9 Creating the Data Directory

mkdir /data

2.10 Download the code from Git, git in the net, if it is online, please download git and upload it to the online bad environment via FTP.

cd /datagit clone http://zhangxiaoyang:[email protected]:3000/graphics/logo_api api-servicels -

2.11 Setup Dependency Packages

cd /data/api-service/yum install cairo-develpip3 install --upgrade pippip3 install -r requirements.txt

Nginx+gunicorn Project Deployment