If directory provided as a "chroot" keyword argument does not exist or inaccessible, this is reported only at the latest initialization stage, when haproxy tries to perform chroot. Sometimes it's not very convenient, as the process is already bound to listen sockets. This was done explicitly in order not to break the case, when haproxy is launched with "-c" option in some specific environment, where it's not possible to create or to modify chroot directory, provided in the configuration. So, let's add more checks for "chroot" directory during the parsing stage and let's show diagnostic warnings, if this directory has become non-accesible or was deleted. Like this, users, who wants to catch errors related to misconfigured chroot before starting the process, can launch haproxy with -dW and -dD. zero-warning mode will stop the process with error, if any warning was emitted during initialization stage.
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.
