uwsgi_ssl_certificate_key

The uwsgi_ssl_certificate_key directive is utilized in NGINX configurations to specify the path to a file containing the private key associated with the SSL certificate used for communication with uWSGI applications over SSL. This directive is particularly important when you want to ensure secure communications by encrypting the data exchanged between NGINX and uWSGI. It is typically used in conjunction with the uwsgi_ssl_certificate directive, which points to the SSL certificate itself.

This directive accepts a single argument, which is the file path of the private key, and it can be specified in the http, server, or location contexts. When NGINX processes requests for uWSGI, it will read this private key file to establish a secure connection. Proper permissions for the key file are essential to prevent unauthorized access, and usually, the key file should be readable only by the user running the NGINX worker process.

In scenarios where the private key is not correctly specified or the file is not accessible due to permission issues, NGINX will fail to start or reload, producing an error. Therefore, it's critical to ensure that the file path is correct and the necessary security practices are followed when setting up SSL for uWSGI.