2527d9dcd1
This patch adds a new 'post-80' option that sets the CLIENT_PLUGIN_AUTH (0x00080000) capability flag and explicitly specifies mysql_native_password as the authentication plugin in the handshake response. This patch also addes documentation content for post-80 option support in MySQL 8.x version. Which handles new default auth plugin caching_sha2_password. MySQL 8.0 changed the default authentication plugin from mysql_native_password to caching_sha2_password. The current mysql-check implementation only supports pre-41 and post-41 client auth protocols, which lack the CLIENT_PLUGIN_AUTH capability flag. When HAProxy sends a post-41 authentication packet to a MySQL 8.x server, the server responds with error 1251: "Client does not support authentication protocol requested by server". The new client capabilities for post-80 are: - CLIENT_PROTOCOL_41 (0x00000200) - CLIENT_SECURE_CONNECTION (0x00008000) - CLIENT_PLUGIN_AUTH (0x00080000) Usage example: backend mysql_servers option mysql-check user haproxy post-80 server db1 192.168.1.10:3306 check The health check user must be created with mysql_native_password: CREATE USER 'haproxy'@'%' IDENTIFIED WITH mysql_native_password BY ''; This addresses https://github.com/haproxy/haproxy/issues/2934.
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.