部署多个 flask 应用程序 aws + gunicorn + nginx

2024-6-7 • tag-icon

我试图在 AWS EC2 中部署多个 Flask 应用程序，但没有成功 :(。

我正在跟进本教程，步骤似乎很简单，但我还没有成功。这是我的配置：

实例类型：t2.micro
操作系统：Ubuntu，22.04 LTS，64 位
目录结构：
Ngingx、Gunicorn 和 Flask 均已在实例中全局安装。
app_one gunicorn服务配置：

[Unit]
Description=Gunicorn instance for app_one
After=network.target
[Service]
User=ubuntu
Group=www-data
WorkingDirectory=/home/ubuntu/app_one
ExecStart=/usr/bin/gunicorn3 --workers 2 --bind unix:flaskapp.sock -m 007 app:app
Restart=always
[Install]
WantedBy=multi-user.target

app_two gunicorn服务配置：

[Unit]
Description=Gunicorn instance for app_two
After=network.target
[Service]
User=ubuntu
Group=www-data
WorkingDirectory=/home/ubuntu/app_two
ExecStart=/usr/bin/gunicorn3 --workers 2 --bind unix:flaskapp.sock -m 007 app:app
Restart=always
[Install]
WantedBy=multi-user.target

nginx 默认启用文件已删除，并替换为此“flaskapp”文件：

server{
    listen 80;
    server_name 3.89.19.163;

    location / {
        proxy_pass http://unix:/home/ubuntu/app_one/flaskapp.sock;
        error_log  /var/log/nginx/error.3.89.19.163;
    }
}

server{
    listen 8080;
    server_name 3.89.19.163;

    location / {
        proxy_pass http://unix:/home/ubuntu/app_two/flaskapp.sock;
        error_log  /var/log/nginx/error.3.89.19.163;
    }
}

nginx.conf：

user www-data;
worker_processes auto;
pid /run/nginx.pid;
include /etc/nginx/modules-enabled/*.conf;

events {
        worker_connections 768;
        # multi_accept on;
}

http {

        ##
        # Basic Settings
        ##

        sendfile on;
        tcp_nopush on;
        types_hash_max_size 2048;
        # server_tokens off;

        # server_names_hash_bucket_size 64;
        # server_name_in_redirect off;

        include /etc/nginx/mime.types;
        default_type application/octet-stream;

        ##
        # SSL Settings
        ##

        ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3; # Dropping SSLv3, ref: POODLE
        ssl_prefer_server_ciphers on;

        ##
        # Logging Settings
        ##

        access_log /var/log/nginx/access.log;
        error_log /var/log/nginx/error.log;

        ##
        # Gzip Settings
        ##

        gzip on;

        # gzip_vary on;
        # gzip_proxied any;
        # gzip_comp_level 6;
        # gzip_buffers 16 8k;
        # gzip_http_version 1.1;
        # gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

        ##
        # Virtual Host Configs
        ##

        include /etc/nginx/conf.d/*.conf;
        include /etc/nginx/sites-enabled/*;
}


#mail {
#       # See sample authentication script at:
#       # http://wiki.nginx.org/ImapAuthenticateWithApachePhpScript
#
#       # auth_http localhost/auth.php;
#       # pop3_capabilities "TOP" "USER";
#       # imap_capabilities "IMAP4rev1" "UIDPLUS";
#
#       server {
#               listen     localhost:110;
#               protocol   pop3;
#               proxy      on;
#       }
#
#       server {
#               listen     localhost:143;
#               protocol   imap;
#               proxy      on;
#       }
#}

最后 /var/log/nginx/error.log

2023/10/02 09:17:31 [notice] 2788#2788: using inherited sockets from "6;7;"

据我所知，这个错误文件显示一个更新，因为它是一个“通知”，所以我没有什么可担心的，但是，看起来我的配置文件中有一些奇怪的东西，因为当我运行 curl localhost:80 或 curl localhost:8080 时，我得到了一个“502 Bad Gateway”

当我访问我的公共IP地址（publicIP，publicIP：80，publicIP：8080）时，我得到的结果如下：

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