Ansible一鍵部署Flask(nginx+Uwsgi)

問題：在一臺安裝有Ansible的主機上如何一鍵部署Flask到另外一臺centos系統的主機?

    前提：兩臺主機網絡互通（參考“Ansible入門基礎"進行配置）

一，新建目錄app和其子目錄conf,目錄app用於存放Flaks項目文件(.py)，uwsgi配置文件（.ini），playbook運行文件（.yml），子目錄conf用於存放nginx配置文件（.conf）

1.

準備目錄創建Flask文件

>mkdir app

>cd app

>vim hello.py           #創建Flask 項目hello.py

from flaskimportFlask

app = Flask(__name__)

 

 

@app.route（‘/’）

def index():

 return'<h1>Hello World!!'

 

 

if __name__ =="__main__":

 app.run(port=8088)

2.

創建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項目所在文件路徑

module = hello                      #因爲flask文件名爲hello.py

callable = app                       #因爲Flask項目文件中 app = Flask(__name__)

memory-report =true

daemonize =127.0.0.1:8088    #配置讓uwsgi在後臺運行

 

 

3.

創建nginx配置文件

>mkdir conf          #在app目錄下創建conf文件，用於存放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和端口要求與uwsgi配置文件裏面的socket值一致

        }

}

 

4.

回到app目錄下，創建playbook文件

>cd ..

>vim test_build.yml         #ansible執行的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 啓動nginx

     - name: start nginx

       command: /root/nginx-1.2.7-c /root/app/conf/nginx.conf   #啓動nginx指令爲：nginx安裝目錄地址 -c nginx配置文件地址

 

5.

運行playbook文件test_build.yml

>ansible-playbook  test_build.yml

 運行結果截圖：

6.

檢測是否搭建成功

>curl127.0.0.1:8088


 返回 Hello World!!  即成功