Install ssl on strapi one-click digital ocean

@sunnyson
here is my server.js file

module.exports = ({ env }) => ({
     host: env('HOST', '0.0.0.0'),
     port: env.int('PORT', 1337),
     url: "my subdomain",
     admin: {
       auth: {
       secret: env('ADMIN_JWT_SECRET'),
      },
    },
  });

/etc/nginx/sites-available/strapi.conf file

server {

# Listen HTTP
    listen 80;
    server_name my subdomain;

# Proxy Config
    location / {
        proxy_pass http://strapi;
        proxy_http_version 1.1;
        proxy_set_header X-Forwarded-Host $host;
        proxy_set_header X-Forwarded-Server $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_set_header Host $http_host;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "Upgrade";
        proxy_pass_request_headers on;
    }
}