Version 2.1 of the HAProxy Data Plane API expands support to all available request and response actions, adds Lua actions, and improves file handling. A year ago, we introduced version 1.0 of the HAProxy Data Plane API, enabling you to configure your HAProxy load balancers remotely through a modern RESTful HTTP API. That first version of the API focused on the essential behaviors for creating frontend proxies, backend server pools, ACLs and traffic switching rules.

The HAProxy Process Manager allows you to start external programs that are managed under HAProxy. Not everything is compiled directly into HAProxy’s C code. Some components are written using other programming languages and run alongside the load balancer.

HAProxy Technologies is excited to announce the release of HAProxy 2.2, featuring a fully dynamic SSL certificate storage, a native response generator, an overhaul to its health checking system, and advanced ring logging with syslog over TCP. Watch our on-demand webinar Ask Me Anything About HAProxy 2.2. If you missed the webinar about HAProxy 2.2, you can watch it on-demand as well.

Under the hood, the HAProxy Data Plane API and the HAProxy Kubernetes Ingress Controller are powered by a shared set of Go libraries that apply changes to an HAProxy configuration file. In this talk, Marko Juraga describes how these libraries are developed and invites you to use them in your own projects when you need to integrate with HAProxy. Watch Marko’s presentation video or read the transcript below. Explore more HAProxyConf 2019 talks in our User Spotlight Series.

In his HAProxyConf 2019 presentation, William Lallemand (Senior HAProxy Developer) shows how process management in HAProxy has evolved since the beginning of the project; With the advent of systemd, new techniques had to be developed so that users could reload HAProxy safely. The Master-Worker mode simplifies the management of HAProxy processes and introduces interesting features.

Version 2.0 of the HAProxy Data Plane API brings some exciting enhancements that unlock the power of HAProxy’s flexible configuration and its runtime capabilities. The HAProxy Data Plane API, which lets you manage your HAProxy configuration dynamically using HTTP RESTful commands, has marked a major milestone with the release of version 2.0. This release emphasizes the runtime aspects of HAProxy, giving you the ability to manage map files, stick tables, peers, DNS resolvers and more.