jenkins.nginx.conf

server {
    listen 443;
    ssl                  on;

    location @404 {
      return 302 /app-path-to-404;
    }
    error_page 404 = @404;

    # All your server and TLS/certificate settings are up here somewhere
    ssl_certificate /etc/nginx/ssl/yourcert.pem;
    ssl_certificate_key /etc/nginx/ssl/yourcert.key;


    location ^~ /jenkins/ {
        # Convert inbound server requests for https://domain.tld/jenkins/ to
        # local network requests for http://yourdomain.tld:8080/jenkins/
        proxy_pass http://yourdomain.tld:8080/jenkins/;

        # Rewrite HTTPS requests from WAN to HTTP requests on LAN
        proxy_redirect http:// https://;

        # Proxy intercept errors
        proxy_intercept_errors on;

        # The following settings from https://wiki.jenkins-ci.org/display/JENKINS/Running+Hudson+behind+Nginx
        sendfile off;
        proxy_set_header   Host             $host:$server_port;
        proxy_set_header   X-Real-IP        $remote_addr;
        proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
        proxy_max_temp_file_size 0;

        #this is the maximum upload size
        client_max_body_size       10m;
        client_body_buffer_size    128k;

        proxy_connect_timeout      90;
        proxy_send_timeout         90;
        proxy_read_timeout         90;

        proxy_temp_file_write_size 64k;

        # Required for new HTTP-based CLI
        proxy_http_version 1.1;
        proxy_request_buffering off;
        proxy_buffering off; # Required for HTTP-based CLI to work over SSL
  }
}