4c8303a59e
Let's reintroduce systemd support in the refactored master-worker mode. As for now, the master-worker fork happens during early initialization steps and then the master process receieves the "READY" status message from the newly forked worker, that has successfully loaded. Let's propagate this "READY" status message at this moment to the systemd from the master process context (_send_status()). We use the master process to send messages to systemd, because it is only the process, monitored by systemd. In master recovery mode, we also need to send to the systemd the "READY" message, but with the status "Reload failed". "READY" will signal to systemd, that master process is still alive, because it doesn't exit in recovery mode and it keeps the existed worker. Status "Reload failed" will signal to user, that something wrong has happened with the configuration. Same message logic was originally preserved for the case, when the worker fails to read its configuration, see on_new_child_failure() for more details. |
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| admin | ||
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| INSTALL | ||
| LICENSE | ||
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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.