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UbuntuにFlaskとuwsgiとNginxを一気貫通する

Last updated at Posted at 2023-06-19

本記事の背景

以前はRaspberryPiにてFlask+uwsgi+Nginxを設定したことはあるが、
今回はubuntu上に同じように設定する
但し、参考となる記事が色々ばらけているので、本記事で実際の設定できていることをまとめる

本記事の前提

・すでにFlaskのアプリは構築済
・ubuntuインストール済
・uwsgiインストール済
・Nginxインストール済
・Pythonの環境構築は済

1.uwsgi.iniの設定

[uwsgi]
callable = app 
master = true
socket = /tmp/uwsgi.sock
chmod-socket = 664
#wsgi-file = /home/akeyi2016/FlaskStudy/tutorial/hello.py
wsgi-file = /mnt/d/hello/hello.py

※ httpまたはsocketにアドレスやポート番号を指定する必要なし
※ nginxはsocketパラメータを受け取るため

2.uwsgiサービスの設定

[Unit]
Description=uWSGI instance to serve flask
After=network.target

[Service]
User=akeyi2016
WorkingDirectory=/home/akeyi2016/FlaskStudy/tutorial
ExecStart=/home/akeyi2016/.local/bin/uwsgi uwsgi.ini

[Install]
WantedBy=multi-user.target

3.nginx.confの設定

user ※<www-data>だと動かない場合がある
http {
        ...
        include /etc/nginx/conf.d/*.conf;
        #include /etc/nginx/sites-enabled/*;
}

4.uwsgi.confの設定

server {
    listen 80 default_server;
    server_name _;

    location / {
        include uwsgi_params;
        uwsgi_pass unix:///tmp/uwsgi.sock;
    }
}

5.サービスを有効にする

sudo systemctl start nginx.service
sudo systemctl start uwsgi.service

6.常時起動は以下を設定

sudo systemctl enable nginx.service
sudo systemctl enable uwsgi.service

7.備考

# uwsgi.serviceパス
/etc/systemd/system
# nginxファイル関連パス
/etc/nginx/nginx.conf
/etc/nginx/conf.d/uwsgi.conf
# nginxエラーログを確認する場合
tail /var/log/nginx/error.log -f

8.追加事項

nginx.confで以下user名をnginx実行ユーザ名へ変更する

user www-data ->default
user <ログインuser名>

参考文献

https://uwsgi-docs.readthedocs.io/en/latest/Nginx.html
https://amateur-engineer-blog.com/flask-uwsgi-nginx/
https://qiita.com/Jazuma/items/521cf31538cb618d285a
https://qiita.com/TrashBoxx/items/c4cbb2b2209c3bcb1689
https://qiita.com/akeyi2018/items/aeec3eb47416e51c3119

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