c0fd39457f
Implemented the flt_otel_ops_check() callback that validates the parsed OTel filter configuration after all HAProxy configuration sections have been processed. The check callback performs the following validations: resolves deferred sample fetch arguments under full frontend and backend capabilities, verifies uniqueness of filter IDs across all proxies, ensures the instrumentation section and its configuration file are present, checks for duplicate group and scope section names, verifies that groups are not empty, resolves group-to-scope and instrumentation-to-group/scope cross-references by linking placeholder entries to their definitions, detects unused scopes, counts root spans and warns when the count differs from one, and accumulates the required channel analyzer bits from all used scopes into the instrumentation configuration. The commit also added the flt_otel_counters structure to track per-event diagnostic counters in debug builds, the FLT_OTEL_ALERT macro for filter-scoped error messages, and the FLT_OTEL_DBG_LIST macro for iterating and dumping named configuration lists. |
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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.