Nginx - Only enable SSL if SSL Certificates Exist

You can create an additional file ssl.conf and put here ssl configs:

ssl_certificate      /etc/nginx/certs/atvcap_cabundle.crt;ssl_certificate_key  /etc/nginx/certs/atvcap.key;

Then include from the main config:

server_name          atvcap.server.com;include /somepath/ssl.conf*;

Make sure to include * symbol - this will not break when the file does not exist at development mode.

The answer of @super_p is correct. But to answer to @AbdolHosein comment I add my answer here if it's not clear.

You need to include your ssl_certificate directive in the included file.

# sample nginx confighttp {    server {        listen 80 deferred;        server_name _;        include /ssl/ssl.conf*;        client_body_timeout 5s;        client_header_timeout 5s;        root /code;    }}

Then in your /ssl/ssl.conf you can do whatever you want, such as enabling HTTPS:

# this is the /ssl/ssl.conf filelisten 443 ssl http2;listen [::]:443 ssl http2;ssl_certificate /ssl/cert.cer;ssl_certificate_key /ssl/key.key;ssl_session_timeout 1d;ssl_session_cache shared:MozSSL:10m;ssl_session_tickets off;ssl_protocols TLSv1.2 TLSv1.3;ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;ssl_prefer_server_ciphers off;

The trick is that we don't look if the certificate exists but we check if the /ssl/ssl.conf exists. This is thanks to the * in the include /ssl/ssl.conf*; directory as stated by @super_p