Ansible一键部署Flask(nginx+Uwsgi)

问题：在一台安装有Ansible的主机上如何一键部署Flask到另外一台centos系统的主机?

    前提：两台主机网络互通（参考“Ansible入门基础"进行配置）

一，新建目录app和其子目录conf,目录app用于存放Flaks项目文件(.py)，uwsgi配置文件（.ini），playbook运行文件（.yml），子目录conf用于存放nginx配置文件（.conf）

1.

准备目录创建Flask文件

>mkdir app

>cd app

>vim hello.py           #创建Flask 项目hello.py

from flaskimportFlask

app = Flask(__name__)

 

 

@app.route（‘/’）

def index():

 return'<h1>Hello World!!'

 

 

if __name__ =="__main__":

 app.run(port=8088)

2.

创建uwsgi配置文件

>vim test_uwsgi.ini


[uwsgi]

socket =127.0.0.1:8088  

chdir = /root/app

processes =4

threads =2

master =true

pythonpath = /root/app         #Flask项目所在文件路径

module = hello                      #因为flask文件名为hello.py

callable = app                       #因为Flask项目文件中 app = Flask(__name__)

memory-report =true

daemonize =127.0.0.1:8088    #配置让uwsgi在后台运行

 

 

3.

创建nginx配置文件

>mkdir conf          #在app目录下创建conf文件，用于存放nginx.conf配置文件

>cd conf

>vim nginx.conf      #nginx 配置文件

include  /etc/nginx/conf.d/*.conf;

server {

    listen        80default_server;

    listen          [::]:80default_server;

    server_name   _;

     include  /etc/nginx/default.d/*.conf;

     location /{

         include  uwsgi_params:

         uwsgi_pass    127.0.0.1:8088    #IP和端口要求与uwsgi配置文件里面的socket值一致

        }

}

 

4.

回到app目录下，创建playbook文件

>cd ..

>vim test_build.yml         #ansible执行的playbook文件

---

- name: nginx and uwsgi build Flask

  hosts:testservers                                                                   

  remote_user: root

  tasks:

       - name: install nginx and uwsgi and uwsgi-plugin-python

       action: yum name={{ item.name }} state=present

       with_items:

              - { name:'nginx'}

              - { name:'uwsgi'}

              - { name:'uwsgi-plugin-python'}

        - name: create directory

          file: state=directory dest=/root/testb/conf

        - name: copy file

          copy: src={{ item.src }} dest={{ item.dest }}

          with_items:

               - { src:'/root/app/test_uwsgi.ini',dest:'/root/testb/test_uwsgi.ini'}

               - { src:'/root/app/hello.py', dest:'/root/testb/hello.py'}

               - { src:'/root/app/conf/nginx.conf', dest:'/root/testb/conf/nginx.conf'}

          - name: build flask

            command: uwsgi --http-socket127.0.0.1:8088--plugin python --ini /root/testb/test_uwsgi.ini

  handlers:         #handler 启动nginx

     - name: start nginx

       command: /root/nginx-1.2.7-c /root/app/conf/nginx.conf   #启动nginx指令为：nginx安装目录地址 -c nginx配置文件地址

 

5.

运行playbook文件test_build.yml

>ansible-playbook  test_build.yml

 运行结果截图：

6.

检测是否搭建成功

>curl127.0.0.1:8088


 返回 Hello World!!  即成功