nginx - 无法在 systemd 203/EXEC 中将 Gunicorn 作为服务运行

Question

我正在尝试使用 Gunicorn/WSGI/Nginx 部署 FlaskApp。我一直试图让它工作一段时间，除了我遵循的 digital ocean 指南之外，找不到任何其他东西。以下是我在当前状态下获得的文件。我对 mywebapp.service 尝试了几种不同的调整文件，因为我很确定这是我的问题所在。我可以跑 /bin/gunicorn --workers 3 --bind 0.0.0.0:8000 -u nginx -g nginx wsgi和 gunicorn 将工作。我很确定这是我遗漏的一些可能是基本的小东西，但我丢失了。我的 nginx用户拥有应用程序目录。

[root@localhost mywebapp]# systemctl status mywebapp

● mywebapp.service - Gunicorn instance to serve mywebapp
   Loaded: loaded (/etc/systemd/system/mywebapp.service; enabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since Sat 2018-06-30 13:00:35 EDT; 25min ago
 Main PID: 29706 (code=exited, status=203/EXEC)

Jun 30 13:00:35 localhost.localdomain systemd[1]: Started Gunicorn instance to serve mywebapp.
Jun 30 13:00:35 localhost.localdomain systemd[1]: Starting Gunicorn instance to serve mywebapp...
Jun 30 13:00:35 localhost.localdomain systemd[1]: mywebapp.service: main process exited, code=exited, status=203/EXEC
Jun 30 13:00:35 localhost.localdomain systemd[1]: Unit mywebapp.service entered failed state.
Jun 30 13:00:35 localhost.localdomain systemd[1]: mywebapp.service failed.

/home/nginx/mywebapp

mywebappenv  mywebapp.py  __pycache__  wsgi.py

/etc/systemd/system/mywebapp.service

[Unit]
Description=Gunicorn instance to serve mywebapp
After=network.target

[Service]
User=nginx
Group=nginx
WorkingDirectory=/home/nginx/mywebapp
Environment="PATH=/home/nginx/mywebapp/mywebappenv/bin"
ExecStart=/bin/gunicorn --workers 3 --bind unix:/home/nginx/mywebapp/mywebapp.sock -u nginx -g nginx wsgi
Restart=always

[Install]
WantedBy=multi-user.target

/home/nginx/mywebapp/mywebapp.py

from flask import Flask
application = Flask(__name__)


@application.route("/")
def hello():
    return "<h1 style='color:blue'>Hello There!</h1>"

if __name__ == "__main__":
    application.run(host='0.0.0.0')

/home/nginx/mywebapp/wsgi.py

from mywebapp import application

if __name__ == "__main__":
    application.run()

[root@localhost mywebapp]# cat/etc/nginx/nginx.conf

# For more information on configuration, see:
#   * Official English Documentation: http://nginx.org/en/docs/
#   * Official Russian Documentation: http://nginx.org/ru/docs/

user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;

# Load dynamic modules. See /usr/share/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;

events {
    worker_connections 1024;
}

http {
    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;
    tcp_nodelay         on;
    keepalive_timeout   65;
    types_hash_max_size 2048;

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

    # Load modular configuration files from the /etc/nginx/conf.d directory.
    # See http://nginx.org/en/docs/ngx_core_module.html#include
    # for more information.
    include /etc/nginx/conf.d/*.conf;

    server {
        listen       80 default_server;
        listen       [::]:80 default_server;
        server_name  10.8.0.173;
        root         /usr/share/nginx/html;

        # Load configuration files for the default server block.
        include /etc/nginx/default.d/*.conf;

        location / {
            proxy_set_header Host $http_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;
            proxy_pass http://unix:/home/nginx/mywebapp/mywebapp.sock;

    }

        error_page 404 /404.html;
            location = /40x.html {
        }

        error_page 500 502 503 504 /50x.html;
            location = /50x.html {
        }
    }

# Settings for a TLS enabled server.
#
#    server {
#        listen       443 ssl http2 default_server;
#        listen       [::]:443 ssl http2 default_server;
#        server_name  _;
#        root         /usr/share/nginx/html;
#
#        ssl_certificate "/etc/pki/nginx/server.crt";
#        ssl_certificate_key "/etc/pki/nginx/private/server.key";
#        ssl_session_cache shared:SSL:1m;
#        ssl_session_timeout  10m;
#        ssl_ciphers HIGH:!aNULL:!MD5;
#        ssl_prefer_server_ciphers on;
#
#        # Load configuration files for the default server block.
#        include /etc/nginx/default.d/*.conf;
#
#        location / {
#        }
#
#        error_page 404 /404.html;
#            location = /40x.html {
#        }
#
#        error_page 500 502 503 504 /50x.html;
#            location = /50x.html {
#        }
#    }

}

Answer 1

根据这里提供的答案，我是如何解决它的。

导航到您的 virtualenv，如下所示

cd/my-env/bin/

chown 当前使用(用户在 gunicorn.service 文件中指定)

Below example has user as 'sammy' in file /etc/systemd/system/gunicorn.service

[Service]
User=sammy
Group=www-data
WorkingDirectory=/home/sammy/myprojectdir
ExecStart=/home/sammy/myprojectdir/myprojectenv/bin/gunicorn \

在 bin 文件夹中，运行命令 ls 以确认您拥有文件“gunicorn”

使用此 Linux 命令删除文件

sudo chown sammy gunicorn

运行这些命令重新启动 gunicorn 并确认

sudo systemctl 启用 gunicorn
须藤 systemctl 启动 gunicorn
sudo systemctl status gunicorn

PS:我的环境是 Ubuntu 18.04