feat: supports docker compose deployment

docker/examples/my.cnf

@@ -0,0 +1,44 @@
+# For advice on how to change settings please see
+# http://dev.mysql.com/doc/refman/8.0/en/server-configuration-defaults.html
+
+[mysqld]
+#
+# Remove leading # and set to the amount of RAM for the most important data
+# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
+# innodb_buffer_pool_size = 128M
+#
+# Remove leading # to turn on a very important data integrity option: logging
+# changes to the binary log between backups.
+# log_bin
+#
+# Remove leading # to set options mainly useful for reporting servers.
+# The server defaults are faster for transactions and fast SELECTs.
+# Adjust sizes as needed, experiment to find the optimal values.
+# join_buffer_size = 128M
+# sort_buffer_size = 2M
+# read_rnd_buffer_size = 2M
+
+# Remove leading # to revert to previous value for default_authentication_plugin,
+# this will increase compatibility with older clients. For background, see:
+# https://dev.mysql.com/doc/refman/8.0/en/server-system-variables.html#sysvar_default_authentication_plugin
+# default-authentication-plugin=mysql_native_password
+skip-host-cache
+skip-name-resolve
+datadir=/var/lib/mysql
+socket=/var/lib/mysql/mysql.sock
+secure-file-priv=/var/lib/mysql-files
+user=mysql
+
+pid-file=/var/run/mysqld/mysqld.pid
+
+# add example config
+
+default-authentication-plugin=mysql_native_password
+character_set_server=utf8mb4
+collation-server=utf8mb4_unicode_ci
+init_connect='SET NAMES utf8mb4'
+
+[mysql]
+default-character-set=utf8mb4
+[client]
+default-character-set=utf8mb4