4c3351fd63
When an empty argument comes from the use of a non-existing variable,
we'll now detect the difference with an empty variable (error pointer
points to the variable's name instead), and submit it to env_suggest()
to see if another variable looks likely to be the right one or not.
This can be quite useful to quickly figure how to fix misspelled variable
names. Currently only series of letters, digits and underscores are
attempted to be resolved as a name. A typical example is:
peer "${HAPROXY_LOCAL_PEER}" 127.0.0.1:10000
which produces:
[ALERT] (24231) : config : parsing [bug-argv4.cfg:2]: argument number 1 at position 13 is empty and marks the end of the argument list:
peer "${HAPROXY_LOCAL_PEER}" 127.0.0.1:10000
^
[NOTICE] (24231) : config : Hint: maybe you meant HAPROXY_LOCALPEER instead ?
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HAProxy
HAProxy is a free, very fast and reliable reverse-proxy offering high availability, load balancing, and proxying for TCP and HTTP-based applications.
Installation
The INSTALL file describes how to build HAProxy. A list of packages is also available on the wiki.
Getting help
The discourse and the mailing-list are available for questions or configuration assistance. You can also use the slack or IRC channel. Please don't use the issue tracker for these.
The issue tracker is only for bug reports or feature requests.
Documentation
The HAProxy documentation has been split into a number of different files for ease of use. It is available in text format as well as HTML. The wiki is also meant to replace the old architecture guide.
Please refer to the following files depending on what you're looking for:
- INSTALL for instructions on how to build and install HAProxy
- BRANCHES to understand the project's life cycle and what version to use
- LICENSE for the project's license
- CONTRIBUTING for the process to follow to submit contributions
The more detailed documentation is located into the doc/ directory:
- doc/intro.txt for a quick introduction on HAProxy
- doc/configuration.txt for the configuration's reference manual
- doc/lua.txt for the Lua's reference manual
- doc/SPOE.txt for how to use the SPOE engine
- doc/network-namespaces.txt for how to use network namespaces under Linux
- doc/management.txt for the management guide
- doc/regression-testing.txt for how to use the regression testing suite
- doc/peers.txt for the peers protocol reference
- doc/coding-style.txt for how to adopt HAProxy's coding style
- doc/internals for developer-specific documentation (not all up to date)
License
HAProxy is licensed under GPL 2 or any later version, the headers under LGPL 2.1. See the LICENSE file for a more detailed explanation.