The lua filters api is no longer experimental. There are some filters
depending on this api, thus it is fair to make it stable now.
`core.register_filter()`. Each declared filter is prefixed by the string
"lua.".
- .. warning::
- The Lua filter support is highly experimental. The API is still unstable
- and may change without notice. No backward compatibility should be
- expected for now. Use it with an extreme caution and report any issue or
- comment about it. The feature was unveiled to improve it and to adapt it
- to real usages.
-
HAProxy Lua Hello world
-----------------------