49772c55e3
This is the first commit in a series to add a support of the 5-th reload use case, when the master process fails to read its new configuration. In this case it just need to perform its initialization steps and keep the existed worker. To add the support for this last use case we need to split init() and main() in a shorter steps in order to encapsulate necessary initialization routines into separate functions. Let's at first, make here progname as a global variable for haproxy.c, as it will be used in error messages in the initialization functions. Then let's split the init() into separate routines, which set and apply modes, write process PID in a pidfile, etc. The big part of the former init(), which called functions to allocate pools, to initialize proxies, to calculate maxconn and to perform some post checks was just encasulated as is, into step_init_2(). It will take some time to figure out exactly which parts of this initialization block are really necessary for the master process and which ones it could skip. So, for the moment step_init_2() is called for all runtime modes.
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.