IT

Sometimes you need to roll out only part of an application to production. This often happens after refactoring or when introducing a new version of specific endpoints. With HAProxy you can route only selected requests to the new backend while keeping the rest of the traffic on the existing servers.

During application upgrades or migrations it’s common to keep old URLs working for backward compatibility. One simple way to handle large numbers of redirects in HAProxy is to use a map file. If you are using Nginx, you can find a similar approach here: Nginx .

Sometimes after upgrading or migrating an application you still need to keep old links working. A simple way to handle this in Nginx is to use a map file and redirect the requests to their new locations. If you are using HAProxy, you can find a similar example here: Haproxy . This approach is useful when you have many URLs to redirect and don’t want to clutter the main configuration with dozens (or hundreds) of rewrite rules.