（gunicorn | uvicorn）+nginx 部署python-sanic项目

1、创建app

#main.py
from sanic import Sanic
from sanic.response import json as JsonResponse,text,html
from views.user import user_bp
app = Sanic(__name__, strict_slashes = False)
#strict_slashes  对URL最后的 / 符号是否严格要求
app.blueprint(user_bp)#注册蓝图


#服务启动运行
@app.listener('before_server_start')
async def setup_db(app, loop):
    pass
#服务器关闭之前
@app.listener('before_server_stop')
async def close_db(app, loop):
    pass


#异常监听
@app.exception(ExpiredSignatureError)
async def handleSignatureError(request, exception):
    return json()


#中间件
@app.middleware('request')
async def middleware:
    pass

@app.route("/")
def index(request):
    return JsonResponse({"hello":"world"})

if __name__ == '__main__':
    app.run(host = "127.0.0.1", port = 80, debug = True)

2、创建蓝图

#views/user.py
from sanic import Blueprint
from sanic.response import json as JsonResponse
from sanic.views import HTTPMethodView

user_bp = Blueprint('user', url_prefix = "/user")

async def login(request):
    pass

class UserViewsAPI(HTTPMethodView):
    async def get(self, request):
        pass
    async def post(self, request):
        pass
    async def put(self, request):
        pass
    async def delete(self, request):
        pass
user_bp.add_route(login, "/login", methods = ["POST"])
user_bp.add_route(UserViewsAPI.as_view(), "/<obj_id>")

二、部署到服务器

1、编写gunicorn配置文件

#gunicorn_config.py
debug = True
loglevel = 'debug'
bind = '127.0.0.1:8998'   #内部端口
pidfile = 'log/gunicorn.pid'
logfile = 'log/debug.log'
workers = 指定进程数量
worker_class = 'uvicorn.workers.UvicornWorker'

2、使用supervisor运行gunicorn/uvicorn脚本，参考链接（https://www.cnblogs.com/mrzhao520/p/14139153.html）

#/etc/supervisord.d/projectname.ini
[program:projectname]
directory=项目的路径
command=gunicorn -c gunicorn_config.py main:app   #启动gunicorn
autostart=true         #是否随supervisor启动
autorestart=true    　　#是否在意外关闭后重启
startretires=3         #尝试启动次数
user=root              #指定用户执行

[fcgi-program:uvicorn]
socket=tcp://127.0.0.1:8997
command=uvicorn main:app
numprocs=3    #supervisor进程数
autostart=true
autorestart=true
startretries=3
user=root
process_name=%(program_name)s_%(process_num)02d #多个进程需要设置不同的名字
stderr_logfile=logs/error.log
stdout_logfile=logs/out.log

3、nginx部署

#/usr/local/nginx/conf/nginx.conf

events {
　　worker_connections 1024; #nginx的并发数
}
http {
　　include mime.types;
　　default_type application/octet-stream;
　　sendfile on;

　　server {
　　　　listen 80;
　　　　server_name 域名;
　　　　location / {
　　　　　　proxy_pass http://127.0.0.1:8998; #gunicorn启动的端口
　　　　　　proxy_set_header Host $host;
　　　　　　proxy_set_header X-Real-IP $remote_addr;
　　　　　　proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
　　　　　　proxy_set_header X-Forwarded-Proto $scheme;
　　　　}
}

}

最后运行supervisor和nginx即可。

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