Nginx setup for hosting static sites

nginx.conf

upstream puma {
    server unix://home/deploy/apps/pte_backend/shared/tmp/sockets/pte_backend-puma.sock fail_timeout=0;
}

server {
  server_name api.houseofenglish.online;

  root /home/deploy/apps/pte_backend/current/public;

  try_files $uri/index.html $uri @puma;

  location @puma {
    proxy_pass http://puma;
    proxy_set_header 'Access-Control-Allow-Origin' 'https://creator.houseofenglish.online';
    proxy_set_header 'Access-Control-Allow-Origin' 'https://www.houseofenglish.online';
    proxy_set_header 'Access-Control-Allow-Origin' 'https://houseofenglish.online';
    proxy_set_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, PUT, DELETE, PATCH, HEAD';
    proxy_set_header 'Access-Control-Allow-Headers' 'X-Requested-With,Accept,Content-Type, Origin';

    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header   X-Forwarded-Proto https;
    proxy_set_header Host $http_host;
    proxy_redirect off;
  }

  error_page 500 502 503 504 /500.html;
  client_max_body_size 4G;
  keepalive_timeout 10;


    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/houseofenglish.online/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/houseofenglish.online/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot

}

server {
  server_name creator.houseofenglish.online;
  index index.html index.htm;
  root /home/deploy/apps/pte_creator/current;
  location / {
    try_files $uri $uri/ /index.html;
  }
  location ~* \.html?$ {
    expires -1;
    add_header Pragma "no-cache";
    add_header Cache-Control "no-store, must-revalidate";
    }
  error_page 404 /404.html;
  error_page 500 502 503 504 /50x.html;
  location = /50x.html {
    root /usr/share/nginx/html;
  }

    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/houseofenglish.online/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/houseofenglish.online/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot

}

server {
  server_name houseofenglish.online www.houseofenglish.online;
  index index.html index.html;
  root /home/deploy/apps/pte_app/current;

  location / {
    try_files $uri $uri/ /index.html;
  }
  location ~* \.html?$ {
    expires -1;
        add_header Pragma "no-cache";
    add_header Cache-Control "no-store, must-revalidate";
  }
  error_page 404 /404.html;
  error_page 500 502 503 504 /50x.html;

  location = /50x.html {
    root /usr/share/nginx/html;
  }

    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/houseofenglish.online/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/houseofenglish.online/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot


}


server {
    if ($host = www.houseofenglish.online) {
        return 301 https://$host$request_uri;
    } # managed by Certbot
}


server {
    if ($host = www.houseofenglish.online) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


    if ($host = houseofenglish.online) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


  listen 80;
  server_name houseofenglish.online www.houseofenglish.online;
    return 404; # managed by Certbot




}

server {
    if ($host = api.houseofenglish.online) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


  listen 80;
  server_name api.houseofenglish.online;
    return 404; # managed by Certbot
}

server {
    if ($host = creator.houseofenglish.online) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


  listen 80;
  server_name creator.houseofenglish.online;
    return 404; # managed by Certbot


}