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Define a new server keyword pool-conn-name. The purpose of this keyword will be to identify connections inside the idle connections pool, replacing SNI in case SSL is not wanted. This keyword uses a sample expression argument. It thus can reuse existing function parse_srv_expr() for parsing. In the future, it may be necessary to define a keyword variant which uses a logformat for extensability. This patch only implement parsing. Argument is stored inside new server field <pool_conn_name> and expression is generated in _srv_parse_finalize() into <pool_conn_name_expr>. If pool-conn-name is not set but SNI is, the latter is reused automatically as pool-conn-name via _srv_parse_finalize(). This ensures current reuse behavior remains compatible and idle connection reuse will not mix connections with different SNIs by mistake. Main usage will be for rhttp when SSL is not wanted between the two haproxy instances. Previously, it was possible to use "sni" keyword even without SSL on a server line which have a similar effect. However, having a dedicated "pool-conn-name" keyword is deemed clearer. Besides, it would allow for more complex configuration where pool-conn-name and SNI are use in parallel with different values.
The HAProxy documentation has been split into a number of different files for ease of use. 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)