How to run several different servers on the same host by ports?

Question

Nginx

Hello colleagues!

There is a domain.com domain , a gate container, and 3 internal custom containers accessible from gate :

• http://custom1:80
  
• http://custom2:80
  
• http://custom3:80
  

You need an nginx configuration in order to:

• domain.com => https://domain.com/
  
• https://domain.com/ => /
  
• https://domain.com:3000/ => http://custom1:80/
  
• https://domain.com:5000/ => http://custom2:80/
  
• https://domain.com:8000/ => http://custom3:80/
  

My config (failed)

# COMPOSER API ADMIN
server {
  listen 80;
  listen [::]:80;
  server_name domain.com admin.domain.com www.domain.com api.domain.com;
  location / {
    return 301 https://$host$request_uri;
  }
}
server {
  listen 443 ssl http2;
  listen [::]:443 ssl http2;
  client_max_body_size 2M;
  server_name domain.com admin.domain.com www.domain.com api.domain.com;
  charset utf-8;
  index index.php;
  root /code;

  ssl_certificate /etc/letsencrypt/live/domain.com/fullchain.pem;
  ssl_certificate_key /etc/letsencrypt/live/domain.com/privkey.pem;
  
  ssl_session_timeout 1d;
  ssl_session_cache shared:MozSSL:10m;
  ssl_session_tickets off;
  ssl_protocols TLSv1.3;
  ssl_prefer_server_ciphers off;
  add_header Strict-Transport-Security "max-age=63072000" always;
  ssl_stapling on;
  ssl_stapling_verify on;
  ssl_trusted_certificate /etc/letsencrypt/lets-encrypt-r3.pem;

  gzip on;
  
  location / {
    dav_methods PUT DELETE;
    try_files $uri $uri/ @phpindex;
  }
  location ~ \.php$ {
    fastcgi_split_path_info ^(.+\.php)(/.+)$;
    fastcgi_pass frontend-php:9000;
    fastcgi_index index.php;
    include fastcgi_params;

    fastcgi_param   QUERY_STRING            $query_string;
    fastcgi_param   REQUEST_METHOD          $request_method;
    fastcgi_param   CONTENT_TYPE            $content_type;
    fastcgi_param   CONTENT_LENGTH          $content_length;
    fastcgi_param   SCRIPT_FILENAME         $realpath_root$fastcgi_script_name;
    fastcgi_param   SCRIPT_NAME             $fastcgi_script_name;
    fastcgi_param   PATH_INFO               $fastcgi_path_info;
    fastcgi_param   PATH_TRANSLATED         $document_root$fastcgi_path_info;
    fastcgi_param   REQUEST_URI             $request_uri;
    fastcgi_param   DOCUMENT_URI            $document_uri;
    fastcgi_param   DOCUMENT_ROOT           $realpath_root;
    fastcgi_param   SERVER_PROTOCOL         $server_protocol;
    fastcgi_param   GATEWAY_INTERFACE       CGI/1.1;
    fastcgi_param   SERVER_SOFTWARE         nginx/$nginx_version;
    fastcgi_param   REMOTE_ADDR             $remote_addr;
    fastcgi_param   REMOTE_PORT             $remote_port;
    fastcgi_param   SERVER_ADDR             $server_addr;
    fastcgi_param   SERVER_PORT             $server_port;
    fastcgi_param   SERVER_NAME             $server_name;
  }
  location @phpindex {
    fastcgi_split_path_info ^(.+\.php)(/.+)$;
    fastcgi_pass frontend-php:9000;
    fastcgi_index index.php;
    include fastcgi_params;

    set $index_name /index.php;

    fastcgi_param   QUERY_STRING            $query_string;
    fastcgi_param   REQUEST_METHOD          $request_method;
    fastcgi_param   CONTENT_TYPE            $content_type;
    fastcgi_param   CONTENT_LENGTH          $content_length;
    fastcgi_param   SCRIPT_FILENAME         $realpath_root$index_name;
    fastcgi_param   SCRIPT_NAME             $index_name;
    fastcgi_param   PATH_INFO               $fastcgi_path_info;
    fastcgi_param   PATH_TRANSLATED         $document_root$fastcgi_path_info;
    fastcgi_param   REQUEST_URI             $request_uri;
    fastcgi_param   DOCUMENT_URI            $document_uri;
    fastcgi_param   DOCUMENT_ROOT           $realpath_root;
    fastcgi_param   SERVER_PROTOCOL         $server_protocol;
    fastcgi_param   GATEWAY_INTERFACE       CGI/1.1;
    fastcgi_param   SERVER_SOFTWARE         nginx/$nginx_version;
    fastcgi_param   REMOTE_ADDR             $remote_addr;
    fastcgi_param   REMOTE_PORT             $remote_port;
    fastcgi_param   SERVER_ADDR             $server_addr;
    fastcgi_param   SERVER_PORT             $server_port;
    fastcgi_param   SERVER_NAME             $server_name;
  }
  location ~ /\.ht {
    deny  all;
  }
}

upstream customstream1 {
  server custom1:80;
}
server {
  listen 3000 ssl http2;
  listen [::]:3000 ssl http2;
  server_name domain.com;

  ssl_certificate /etc/letsencrypt/live/domain.com/fullchain.pem;
  ssl_certificate_key /etc/letsencrypt/live/domain.com/privkey.pem;
  ssl_session_timeout 1d;
  ssl_session_cache shared:MozSSL:10m;
  ssl_session_tickets off;
  ssl_protocols TLSv1.1 TLSv1.2 TLSv1.3;
  ssl_prefer_server_ciphers off;
  ssl_stapling on;
  ssl_stapling_verify on;
  ssl_trusted_certificate /etc/letsencrypt/lets-encrypt-r3.pem;
  add_header Strict-Transport-Security "max-age=63072000" always;
  location / {
    proxy_pass http://customstream1;
    proxy_set_header Host            files.domain.com;
    proxy_set_header X-Forwarded-For $remote_addr;        
  }
}
upstream customstream2 {
  server custom2:80;
}
server {
  listen 3000 ssl http2;
  listen [::]:3000 ssl http2;
  server_name domain.com;

  ssl_certificate /etc/letsencrypt/live/domain.com/fullchain.pem;
  ssl_certificate_key /etc/letsencrypt/live/domain.com/privkey.pem;
  ssl_session_timeout 1d;
  ssl_session_cache shared:MozSSL:10m;
  ssl_session_tickets off;
  ssl_protocols TLSv1.1 TLSv1.2 TLSv1.3;
  ssl_prefer_server_ciphers off;
  ssl_stapling on;
  ssl_stapling_verify on;
  ssl_trusted_certificate /etc/letsencrypt/lets-encrypt-r3.pem;
  add_header Strict-Transport-Security "max-age=63072000" always;
  location / {
    proxy_pass http://customstream2;
    proxy_set_header Host            files.domain.com;
    proxy_set_header X-Forwarded-For $remote_addr;        
  }
}
upstream customstream3 {
  server custom3:80;
}
server {
  listen 5000 ssl http2;
  listen [::]:5000 ssl http2;
  server_name domain.com;

  ssl_certificate /etc/letsencrypt/live/domain.com/fullchain.pem;
  ssl_certificate_key /etc/letsencrypt/live/domain.com/privkey.pem;
  ssl_session_timeout 1d;
  ssl_session_cache shared:MozSSL:10m;
  ssl_session_tickets off;
  ssl_protocols TLSv1.1 TLSv1.2 TLSv1.3;
  ssl_prefer_server_ciphers off;
  ssl_stapling on;
  ssl_stapling_verify on;
  ssl_trusted_certificate /etc/letsencrypt/lets-encrypt-r3.pem;
  add_header Strict-Transport-Security "max-age=63072000" always;
  location / {
    proxy_pass http://customstream3;
    proxy_set_header Host            files.domain.com;
    proxy_set_header X-Forwarded-For $remote_addr;        
  }
}

Thanks to all!

Answer 1

You have some kind of noodles instead of a config. Divide server blocks in a normal way - this is not an overhead project that is worth saving on.
All the Wishlist described in the question is the standard nginx functionality available in every first manual.