发布时间:2020-04-29 10:55:16编辑:admin阅读(3605)
现有一台服务器,需要部署mysql。其中mysql容器,需要在第一次启动时,执行多个sql文件。
文件名 | 说明 | 执行顺序 |
init.sql | 创建数据库以及用户 | 1 |
users.sql | 用户表 | 2 |
role.sql | 用户角色 | 3 |
注意:必须严格按照执行顺序来执行,不能错乱。
有些人可能会问:为啥不把这3个sql文件合并成1个sql?答案是可以的。假设有上万个用户,那么这个sql文件就会很大,后期维护不方便。
那么可不可以让一个sql文件,执行另外3个sql文件呢?答案是可以的。这样就可以控制sql文件的执行顺序。比如:
source /opt/sql/init.sql; use test; source /opt/sql/users.sql; source /opt/sql/role.sql;
操作系统:centos 7.6
docker版本: 19.03.8
docker-compose版本: 1.24.1
/opt/mysql_test 目录结构如下:
./ ├── docker-compose.yml └── mysql ├── dockerfile ├── init │ └── init.sql ├── mysqld.cnf └── sql ├── init.sql ├── role.sql └── users.sql
docker-compose.yml
version: '3' services: mysql: image: mysql:1 container_name: mysql build: ./mysql volumes: - /data/mysql/data:/var/lib/mysql - ./mysql/init:/docker-entrypoint-initdb.d/ - ./mysql/sql:/opt/sql environment: - MYSQL_ROOT_PASSWORD=abcd1234 ports: - "3306:3306" restart: always command: --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_ci
说明:将sql文件放到容器中的 /docker-entrypoint-initdb.d/ 目录,就会在mysql第一次启动时执行。之后重启容器不会重复执行!
如果此目录放置多个sql文件,它执行时是没有顺序的。因此,这个目录只放一个init.sql,专门用来控制执行sql顺序的。
mysql/dockerfile
FROM mysql:5.7 ADD mysqld.cnf /etc/mysql/mysql.conf.d/mysqld.cnf
mysql/init/init.sql
source /opt/sql/init.sql; use test; source /opt/sql/users.sql; source /opt/sql/role.sql;
mysql/mysqld.cnf
[client] port=3306 socket = /var/run/mysqld/mysqld.sock [mysql] no-auto-rehash auto-rehash default-character-set=utf8mb4 [mysqld] ###basic settings server-id = 2 pid-file = /var/run/mysqld/mysqld.pid socket = /var/run/mysqld/mysqld.sock datadir = /var/lib/mysql #log-error = /var/lib/mysql/error.log # By default we only accept connections from localhost #bind-address = 127.0.0.1 # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 character-set-server = utf8mb4 sql_mode="NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION" default-storage-engine=INNODB transaction_isolation = READ-COMMITTED auto_increment_offset = 1 connect_timeout = 20 max_connections = 3500 wait_timeout=86400 interactive_timeout=86400 interactive_timeout = 7200 log_bin_trust_function_creators = 1 wait_timeout = 7200 sort_buffer_size = 32M join_buffer_size = 128M max_allowed_packet = 1024M tmp_table_size = 2097152 explicit_defaults_for_timestamp = 1 read_buffer_size = 16M read_rnd_buffer_size = 32M query_cache_type = 1 query_cache_size = 2M table_open_cache = 1500 table_definition_cache = 1000 thread_cache_size = 768 back_log = 3000 open_files_limit = 65536 skip-name-resolve ########log settings######## log-output=FILE general_log = ON general_log_file=/var/lib/mysql/general.log slow_query_log = ON slow_query_log_file=/var/lib/mysql/slowquery.log long_query_time=10 #log-error=/var/lib/mysql/error.log log_queries_not_using_indexes = OFF log_throttle_queries_not_using_indexes = 0 #expire_logs_days = 120 min_examined_row_limit = 100 ########innodb settings######## innodb_io_capacity = 4000 innodb_io_capacity_max = 8000 innodb_buffer_pool_size = 6144M innodb_file_per_table = on innodb_buffer_pool_instances = 20 innodb_buffer_pool_load_at_startup = 1 innodb_buffer_pool_dump_at_shutdown = 1 innodb_log_file_size = 300M innodb_log_files_in_group = 2 innodb_log_buffer_size = 16M innodb_undo_logs = 128 #innodb_undo_tablespaces = 3 #innodb_undo_log_truncate = 1 #innodb_max_undo_log_size = 2G innodb_flush_method = O_DIRECT innodb_flush_neighbors = 1 innodb_purge_threads = 4 innodb_large_prefix = 1 innodb_thread_concurrency = 64 innodb_print_all_deadlocks = 1 innodb_strict_mode = 1 innodb_sort_buffer_size = 64M innodb_flush_log_at_trx_commit=1 innodb_autoextend_increment=64 innodb_concurrency_tickets=5000 innodb_old_blocks_time=1000 innodb_open_files=65536 innodb_stats_on_metadata=0 innodb_file_per_table=1 innodb_checksum_algorithm=0 #innodb_data_file_path=ibdata1:60M;ibdata2:60M;autoextend:max:1G innodb_data_file_path = ibdata1:12M:autoextend #innodb_temp_data_file_path = ibtmp1:500M:autoextend:max:20G #innodb_buffer_pool_dump_pct = 40 #innodb_page_cleaners = 4 #innodb_purge_rseg_truncate_frequency = 128 binlog_gtid_simple_recovery=1 #log_timestamps=system ############## delayed_insert_limit = 100 delayed_insert_timeout = 300 delayed_queue_size = 1000 delay_key_write = ON disconnect_on_expired_password = ON div_precision_increment = 4 end_markers_in_json = OFF eq_range_index_dive_limit = 10 innodb_adaptive_flushing = ON innodb_adaptive_hash_index = ON innodb_adaptive_max_sleep_delay = 150000 #innodb_additional_mem_pool_size = 2097152 innodb_autoextend_increment = 64 innodb_autoinc_lock_mode = 1
mysql/sql/init.sql
-- 创建数据库 CREATE DATABASE `test` DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci; -- 创建普通用户 grant all PRIVILEGES on test.* to test@'%' identified by '123456'; flush privileges; use test;
mysql/sql/users.sql
CREATE TABLE `users` ( `id` bigint(20) NOT NULL AUTO_INCREMENT, `username` varchar(50) COLLATE utf8mb4_bin NOT NULL COMMENT '用户名', `password` varchar(255) CHARACTER SET utf8mb4 DEFAULT NULL COMMENT '密码', `phone` varchar(20) CHARACTER SET utf8mb4 DEFAULT NULL COMMENT '手机号', `email` varchar(255) CHARACTER SET utf8mb4 DEFAULT NULL COMMENT '邮箱', `create_time` datetime DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间', PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin; INSERT INTO `test`.`users` (`id`, `username`, `password`, `phone`, `email`, `create_time`) VALUES ('1', 'xiao', '123', '12345678910', '123@qq.com', '2020-04-10 01:22:07');
mysql/sql/role.sql
CREATE TABLE `role` ( `id` int(11) NOT NULL AUTO_INCREMENT, `name` varchar(50) DEFAULT NULL COMMENT '角色名称,显示用', `create_time` datetime DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间', `update_time` datetime DEFAULT CURRENT_TIMESTAMP COMMENT '更新时间', `status` tinyint(1) DEFAULT '1' COMMENT '是否失效,1-有效,0-失效', `version` int(11) DEFAULT '1', PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4; INSERT INTO `test`.`role` (`id`, `name`, `create_time`, `update_time`, `status`, `version`) VALUES ('1', 'admin', '2020-04-17 09:35:48', '2020-04-17 09:35:48', '1', '1');
cd /opt/mysql_test docker-compose build
docker-compose up -d
查看日志
docker logs -f mysql输出:
... 2020-04-21 07:29:05+00:00 [Note] [Entrypoint]: /usr/local/bin/docker-entrypoint.sh: running /docker-entrypoint-initdb.d/init.sql ... Version: '5.7.29-log' socket: '/var/run/mysqld/mysqld.sock' port: 3306 MySQL Community Server (GPL) 2020-04-21T07:29:09.473241Z 0 [Note] InnoDB: Buffer pool(s) load completed at 200421 7:29:09
可以发现,执行了初始化脚本。
用户表
角色表
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