nginx做为服务器，mongo为数据库支持，flask为python语言的web框架，利用docker的容器特性，可以简单地部署在linux服务器上
项目准备
项目主要目录如下
__ project-name
|__ docker-file
|__ ningx
|__ dockerfile
|__ conf
|__ nginx.conf
|__ flask
|__ dockerfile
|__ requirements.txt
|__ mongo
|__ dockerfile
|__ setup.sh
|__ docker-compose.yml
|__ src
|__ app
|__ ...
|__ run.py简要说明
docker-file目录为docker部署的配置文件
src目录为flask应用的python代码
docker的详细配置
docker-compose配置
version: '2.2'
services:
mongo:
build: ./mongo
volumes:
- "./mongo/db:/data/db"
restart: always
ports:
- "27017:27017"
environment:
mongo_initdb_root_username: root
mongo_initdb_root_password: 123456
flask:
build: ./flask
links:
- mongo
ports:
- "5000:5000"
expose:
- "5000"
volumes:
- ../src:/home/web
nginx:
build: ./nginx
links:
- flask
volumes:
- "./nginx/log:/var/log/nginx"
- "../:/usr/share/nginx/html"
ports:
- "80:80"
- "8080:8080"
- "443:443"
restart: alwaysmongodb的配置
/mongo/dockerfile的内容如下
from mongo:3.6 # 设置时区 env tz=asia/shanghai run ln -snf /usr/share/zoneinfo/$tz /etc/localtime && echo $tz > /etc/timezone # 设置工作目录 env workdir /usr/local/work env auto_run_dir /docker-entrypoint-initdb.d env install_mongo_shell setup.sh run mkdir -p $workdir # 复制数据库的初始化命令 copy ./$install_mongo_shell $auto_run_dir/ run chmod +x $auto_run_dir/$install_mongo_shell
/mongo/setup.sh的内容如下
该文件的目的是，启动mongodb后创建一个密码为test的用户test，并赋予它数据库test的读写操作
#!/bin/bash mongo <flask应用的配置
/flask/dockerfile的内容如下
from python:3.6 # 设置时区 env tz=asia/shanghai run ln -snf /usr/share/zoneinfo/$tz /etc/localtime && echo $tz > /etc/timezone # 设置工作区 run mkdir -p /home/web workdir /home/web # 添加依赖 add requirements.txt /home/web/requirements.txt run pip3 install -i https://pypi.douban.com/simple/ -r requirements.txt # 使用gunicorn启动应用 cmd gunicorn -w 4 -b 0.0.0.0:5000 run:app/src/app/run.py的代码
此处注释了调试用的 app.run()，发布时用gunicorn启动
from app import create_app app = create_app('default') app.debug=false # if __name__ == '__main__': # app.run()nginx的配置
/nginx/dockerfile的内容如下
from nginx:1.14 # 设置时区 env tz=asia/shanghai run ln -snf /usr/share/zoneinfo/$tz /etc/localtime && echo $tz > /etc/timezone # 复制配置 copy conf/nginx.conf /etc/nginx/nginx.conf/nignx/conf/nginx.conf的内容如下
user nginx; worker_processes 1; error_log /var/log/nginx/error.log warn; pid /var/run/nginx.pid; events { worker_connections 1024; } http { include /etc/nginx/mime.types; default_type application/octet-stream; log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for"'; access_log /var/log/nginx/access.log main; sendfile on; #tcp_nopush on; keepalive_timeout 65; # 开启gzip gzip on; gzip_min_length 1k; gzip_buffers 4 16k; #gzip_http_version 1.0; gzip_comp_level 1; gzip_types text/plain application/x-javascript text/css application/xml text/javascript application/x-httpd-php image/jpeg image/gif image/png; gzip_vary off; gzip_disable "msie [1-6]\."; server { listen 80; server_name localhost; keepalive_timeout 5; root /usr/share/nginx/html; location /static/ { alias /usr/share/nginx/html/src/app/static/; } location / { # checks for static file, if not found proxy to app try_files $uri @flask_app; } location @flask_app { proxy_pass http://192.168.0.2:5000; # 发布在阿里云上，应填写内网ip proxy_redirect off; proxy_set_header x-forwarded-for $proxy_add_x_forwarded_for; proxy_set_header host $http_host; proxy_set_header x-real-ip $remote_addr; #proxy_buffers 8 32k; #proxy_buffer_size 64k; } } }启动部署
进入docker-flie目录 cd docker-flie
启动docker docker-compose up
查看容器状态 docker ps
本地部署浏览器输入 127.0.0.1即可
最后出现类似docker_file_nginx_1,docker_file_mongo_1, docker_file_flask_1的3个容器，说明成功！！！
踩坑吐槽
1 mongol容器中的初始化文件需要放在 docker-entrypoint-initdb.d 目录下
本人做过如下尝试，会显示 mongdb未启动。
add setup.sh /data/setup.sh run chmod +x /data/setup.sh cmd ["/data/setup.sh"]2 flask应用无法连接mongo，本文使用link方式。
在数据库的配置应相应写成：
mongodb_settings = { 'db': 'test', 'host': 'mongo', # 127.0.0.1 host地址一定要写你配置的--link的名字 'username': 'test', 'password': 'test', 'port': 27017 }本地测试时改回127.0.0.1
3 nginx中配置使用的代理模式，其中执行flask应用的ip，应为内网ip
