Two domains on one droplet with one SSL certificate

Hi there!

I am trying to get two domains running on one droplet (nginx) with the same SSL certificate, and as a newbie to this, I have been tearing out my hair for a day trying to get it to work.

My configuration for the first domain is this the following. Its a node app, and it’s working fine:

#domain1

server {
        listen 80 default_server;

        root /home/Bas/domain1;
        index index.html index.htm;

        server_name www.domain1.com domain1.com;
        return 301 https://$server_name$request_uri;
}

server {
        server_name www.domain1.com domain1.com;
        listen 443 ssl http2;

        ssl_certificate /etc/letsencrypt/live/www.domain1.com/fullchain.pem;
        ssl_certificate_key /etc/letsencrypt/live/www.domain1.com/privkey.pem;
        include /etc/nginx/snippets/ssl-params.conf;

    location / {
        proxy_pass http://localhost:3001;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-NginX-Proxy true;
        proxy_ssl_session_reuse off;
        proxy_set_header Host $http_host;
        proxy_cache_bypass $http_upgrade;
        proxy_redirect off;
     }
     location ~ /.well-known {
             allow all;
    }
  }

The second domain is for a static website, and it was working before I tried to install the https. I think I got something wrong in the configuration file which you can see below:

#domain2

server {
    listen 80;
    server_name domain2.com www.domain2.com
    return 301 https://$server_name$request_uri;
}

server {
  listen 443 ssl http2;
  server_name domain2.com www.domain2.com;

  root /home/Bas/domain2;
  index index.html index.htm;

  ssl_certificate /etc/letsencrypt/live/domain2.com/fullchain.pem;
  ssl_certificate_key /etc/letsencrypt/live/domain2.com/privkey.pem;

  include /etc/nginx/snippets/ssl-params.conf;

  location / {
         try_files $uri $uri/ =404;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_set_header X-NginX-Proxy true;
         proxy_set_header X-Forwarded-Proto $scheme;
         proxy_pass http://localhost:80/;
         proxy_ssl_session_reuse off;
         proxy_set_header Host $http_host
         proxy_cache_bypass $http_upgrade;
         proxy_redirect off; 
 }
 
 location ~ /.well-known {
             allow all;
     }
}

I’ve been trying a lot of different solutions and I have been running into multiple different errors, depending on my configuration: 502 bad gateway, “Welcome to Nginx, further configuration is required”, “too many redirects”, and at the moment I get the first Node app on both domains. Really stuck here, so any help would be much appreciated!