rancher使用外部数据库无法正常使用

你的数据库用的什么编码？UTF-8吗？

CREATE DATABASE IF NOT EXISTS cattle COLLATE = 'utf8_general_ci' CHARACTER SET = 'utf8';

mysql参考配置文件[root@rancher-db ~]# cat /etc/my.cnf
[client]
port            = 3306
socket          = /var/lib/mysql/mysql.sock

[mysqld_safe]
socket          = /var/lib/mysql/mysql.sock
nice            = 0

[mysqld]
user            = mysql
pid-file        = /var/run/mariadb/mariadb.pid
socket          = /var/lib/mysql/mysql.sock
port            = 3306
basedir         = /usr
datadir         = /var/lib/mysql
tmpdir          = /tmp
lc-messages-dir = /usr/share/mysql
skip-external-locking
key_buffer_size = 16M
max_allowed_packet      = 64M
thread_stack            = 192K
thread_cache_size       = 8
myisam-recover         = BACKUP
max_connections        = 1000
sql_mode = ONLY_FULL_GROUP_BY
query_cache_limit       = 2M
query_cache_size        = 32M
log_error = /var/log/mariadb/mariadb.log
expire_logs_days        = 2
max_binlog_size         = 100M
innodb_file_per_table = 1
innodb_buffer_pool_size = 6GB

[mysqldump]
quick
quote-names
max_allowed_packet      = 64M

[mysql]
#no-auto-rehash # faster start of mysql but no tab completition

[isamchk]
key_buffer_size = 64M

!includedir /etc/my.cnf.d