Nginx + uWSGI + Flask on Amazon Linux

app.py

from flask import Flask

application = Flask(__name__)

@application.route("/")
def hello():
    return "Hello World!"

history.sh

# やったことメモ

# もろもろインストール
sudo yum update -y
sudo yum groupinstall "Development Tools"
sudo yum install -y python35-pip python35-devel nginx

# ディレクトリ掘る
sudo mkdir /var/app
sudo chown ec2-user:ec2-user /var/app
cd /var/app

# アプリケーションと uWSGI の設定
vim app.py
sudo pip-3.5 install flask uwsgi

# init.d の設定
vim init.sh
chmod +x init.sh
sudo ln -s /var/app/init.sh /etc/init.d/uwsgi

# Nginx の設定
sudo ln -s /var/app/nginx.conf /etc/nginx/conf.d/uwsgi.conf
sudo vim /etc/nginx/nginx.conf  # 実行ユーザを root に変更 & デフォルトサーバを消す

# 自動起動設定
sudo chkconfig uwsgi on
sudo chkconfig nginx on

# サービス起動
sudo service uwsgi start
sudo service nginx start

# 確認
curl localhost

init.sh

#!/bin/bash
#
# uWSGI
#
# chkconfig: - 58 74

# Source function library.
. /etc/init.d/functions

PATH=$PATH:/usr/local/bin

prog=uwsgi
lockfile=/var/lock/subsys/$prog
app_dir=/var/app

start() {
        echo -n $"Starting $prog: "
        daemon $prog --socket $app_dir/app.sock --wsgi-file $app_dir/app.py
        RETVAL=$?
        echo
        [ $RETVAL -eq 0 ] && touch $lockfile
        return $RETVAL
}

stop() {
        echo -n $"Shutting down $prog: "
        killproc $prog
        RETVAL=$?
        echo
        [ $RETVAL -eq 0 ] && rm -f $lockfile
        return $RETVAL
}

# See how we were called.
case "$1" in
  start)
        start
        ;;
  stop)
        stop
        ;;
  status)
        status $prog
        ;;
  restart)
        stop
        start
        ;;
  *)
        echo $"Usage: $0 {start|stop|status|restart}"
        exit 2
esac

nginx.conf

server {
    location / {
        include uwsgi_params;
        uwsgi_pass unix:/var/app/app.sock;
    }
}