http {
 
  # Simplifies setting the "Connection" header.
  # Required by Enterprise Pack application.
  map $http_upgrade $connection_upgrade {
    default upgrade;
    ''      close;
  }
 
  # Simplifies setting the "X-Forwarded-Prefix" header.
  map $request_uri $x_forwarded_prefix {
    ~^/dtp/(dc|ep|grs|licenseserver|pstsec|pst|pstsec|tcm)/?   /dtp/$1;
    ~^/dtp/?.*                                          /dtp;
  }
 
  server {
    listen 80;
     
    # listen 443 ssl;
    # ssl_certificate     /path/to/cert;
    # ssl_certificate_key /path/to/key;
 
    location /dtp/ {
 
      # Redirect to app with a trailing slash if not present.
      if ($request_uri = $x_forwarded_prefix) {
        return 301 $request_uri/;
      }
 
      # Add necessary headers for WebSocket proxying.
      # Required by Enterprise Pack application.
      proxy_http_version 1.1;
      proxy_set_header Upgrade    $http_upgrade;
      proxy_set_header Connection $connection_upgrade;
 
      # Add necessary "X-Forwarded-" proxy headers.
      proxy_set_header X-Forwarded-Proto  $scheme;
      proxy_set_header X-Forwarded-Host   $http_host;
      proxy_set_header X-Forwarded-Prefix $x_forwarded_prefix;
 
      # Proxy incoming requests to the DTP server by default.
      proxy_pass http://localhost:8080/;
 
      location /dtp/dc/ {
        # Proxy incoming requests to Data Collector.
        proxy_pass http://localhost:8082/;
      }
 
      location /dtp/ep/ {
        # Proxy incoming requests to Enterprise Pack.
        proxy_pass http://localhost:8314/;
      }
       
    }
  }
}

 Listen 80
  
# Listen 443 https
# SSLEngine on
# SSLVerifyClient none
# SSLProxyCheckPeerCN off
# SSLCertificateFile /path/to/cert
# SSLCertificateKeyFile /path/to/key
  
# Automatically add the following headers to proxied requests.
# - X-Forwarded-For
# - X-Forwarded-Host
# - X-Forwarded-Server
ProxyAddHeaders on
  
# Enable the "RewriteRule" directive used for WebSocket proxying.
RewriteEngine on  
 
# Redirect to app with a trailing slash if not present.
<LocationMatch "^/dtp/(grs|licenseserver|pstsec|pst|tcm)$">
    RewriteRule .* "%{REQUEST_URI}/" [L]
</LocationMatch>
 
<Location /dtp>
    RequestHeader set X-Forwarded-Prefix /dtp
    RequestHeader set X-Forwarded-Proto expr=%{REQUEST_SCHEME}
 
    ProxyPass "http://${DTP_HOSTNAME}:8080"
    ProxyPassReverse "http://${DTP_HOSTNAME}:8080"
</Location>
  
<LocationMatch "^/dtp/(?<app>dc|ep|grs|licenseserver|pstsec|pst|pstsec|tcm)">
    RequestHeader set X-Forwarded-Prefix "/dtp/%{MATCH_APP}e"
</LocationMatch>
  
<Location /dtp/dc>
    ProxyPass "http://${DTP_HOSTNAME}:8082"
    ProxyPassReverse "http://${DTP_HOSTNAME}:8082"
</Location>
  
<Location /dtp/ep>
    ProxyPass "http://${DTP_HOSTNAME}:8314"
    ProxyPassReverse "http://${DTP_HOSTNAME}:8314"
  
    # mod_proxy_wstunnel is required for WebSocket proxying.
  
    # Rewrite for Enterprise Pack WebSockets.
    RewriteCond %{HTTP:Upgrade} websocket [NC]
    RewriteCond %{HTTP:Connection} upgrade [NC]
    RewriteCond %{REQUEST_URI} ^/dtp/ep/(socket\.io/.*) [NC]
    RewriteRule .* "ws://${DTP_HOSTNAME}:8314/%1" [P,L]
  
    # Rewrite for Node-RED WebSockets.
    RewriteCond %{HTTP:Upgrade} websocket [NC]
    RewriteCond %{HTTP:Connection} upgrade [NC]
    RewriteRule .* "ws://${DTP_HOSTNAME}:8314%{REQUEST_URI}" [P,L]
</Location>