Running HTTPS on localhost

$ sudo openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout /etc/ssl/private/nginx-selfsigned.key -out /etc/ssl/certs/nginx-selfsigned.crt
$ sudo nano /etc/nginx/snippets/self-signed.conf
  >> ssl_certificate /etc/ssl/certs/nginx-selfsigned.crt;
     ssl_certificate_key /etc/ssl/private/nginx-selfsigned.key;
$ sudo nano /etc/nginx/snippets/ssl-params.conf
# from https://cipherli.st/
# andhttps://raymii.org/s/tutorials/Strong_SSL_Security_On_nginx.html

ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;
ssl_ciphers "EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH";
ssl_ecdh_curve secp384r1;
ssl_session_cache shared:SSL:10m;
ssl_session_tickets off;
ssl_stapling on;
ssl_stapling_verify on;
resolver 8.8.8.8 8.8.4.4 valid=300s;
resolver_timeout 5s;
add_header Strict-Transport-Security "max-age=63072000; includeSubdomains";
add_header X-Frame-Options DENY;
add_header X-Content-Type-Options nosniff;

ssl_dhparam /etc/ssl/certs/dhparam.pem;

Added something along these lines to the conf

server {
 listen 80;
 listen 443;
 ssl on;
 server_name localhost;
 include snippets/self-signed.conf;
 include snippets/ssl-params.conf;
location / {
 proxy_set_header X-Real-IP $remote_addr;
 proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
 proxy_set_header Host $http_host;
 proxy_set_header X-NginX-Proxy true;
 proxy_connect_timeout 86400;
 proxy_send_timeout 86400;
 proxy_read_timeout 86400;
 proxy_pass http://localhost:8080/;
 proxy_redirect off;
 proxy_http_version 1.1;
 proxy_set_header Upgrade $http_upgrade;
 proxy_set_header Connection “Upgrade”;
 }
location static {
 root /var/www/your_location/app/static/dist/;
 }
}

Finally

$ sudo nginx -t && sudo service nginx restart

Adopted from here:

How To Create a Self-Signed SSL Certificate for Nginx in Ubuntu 16.04 | DigitalOcean

Some ideas from here for the nginx_conf

http://www.benmccann.com/ssl-on-localhost-with-nginx/