Centos8安装MySQL Router

wget https://dev.mysql.com/get/Downloads/MySQL-Router/mysql-router-community-8.0.21-1.el8.x86_64.rpm

rpm -ivh mysql-router-community-8.0.21-1.el8.x86_64.rpm

warning: mysql-router-community-8.0.21-1.el8.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
[/usr/lib/tmpfiles.d/mysqlrouter.conf:23] Line references path below legacy directory /var/run/, updating /var/run/mysqlrouter → /run/mysqlrouter; please update the tmpfiles.d/ drop-in file accordingly.

vim /etc/mysqlrouter/mysqlrouter.conf

# Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License, version 2.0,
# as published by the Free Software Foundation.
#
# This program is also distributed with certain software (including
# but not limited to OpenSSL) that is licensed under separate terms,
# as designated in a particular file or component or in included license
# documentation.  The authors of MySQL hereby grant you an additional
# permission to link the program and your derivative works with the
# separately licensed software that they have included with MySQL.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License, version 2.0, for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA

#
# MySQL Router configuration file
#
# Documentation is available at
#    http://dev.mysql.com/doc/mysql-router/en/

[DEFAULT]
logging_folder = /var/log/mysqlrouter
runtime_folder = /var/run/mysqlrouter
config_folder = /etc/mysqlrouter

[logger]
level = INFO

# If no plugin is configured which starts a service, keepalive
# will make sure MySQL Router will not immediately exit. It is
# safe to remove once Router is configured.
[keepalive]
interval = 60

[routing:read_write]
bind_address = 0.0.0.0
bind_port = 3306
destinations = 172.27.16.12:3306
mode = read-write

systemctl start mysqlrouter.service
systemctl enable mysqlrouter.service

chown mysqlrouter:mysqlrouter /usr/lib64/mysqlrouter