使用Dockerfile构建mysql8.0.20
使用Dockerfile构建mysql8.0.20
在官方镜像 docker.io/library/mysql:8.0.20 的基础上二次构建并做mysql配置优化
1、编写Dockerfile
在构建之前，准备优化过的my.cnf文件，文件放到跟Dockerfile 同一个级别的目录下
my.cnf 文件内容：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 | [mysqld] server-id=1 bind-address=0.0.0.0 datadir=/data/mysql/data basedir=/usr/local/mysql socket=/tmp/mysql.sock user=mysql port=3306 default-time_zone='+8:00' default-storage-engine=INNODB default_authentication_plugin=caching_sha2_password # mysql 8.0用 innodb-print-all-deadlocks = true max_binlog_size=500M sort_buffer_size=128M sync_binlog=1 binlog_rows_query_log_events=1 binlog_row_image='full' log_output=file slow_query_log=ON slow_query_log_file=/var/lib/mysql/mysql-slow.log log_queries_not_using_indexes=off long_query_time=3 log_bin=ON binlog_format=ROW log-bin=/var/lib/mysql/mysql-bin # expire_logs_days=15 # mysql 5.x 用 binlog_expire_logs_seconds=604800 # mysql8.0 弃用expire_logs_days relay_log=mysql-relay-bin wait_timeout=28800 interactive_timeout=28800 master_info_repository=TABLE relay_log_info_repository=TABLE autocommit=ON report_port=3306 character-set-server=utf8mb4 lower_case_table_names=1 pid-file=/var/run/mysqld/mysqld.pid log-error=/var/lib/mysql/mysql-error secure_file_priv=/var/lib/mysql federated back_log=3000 max_connections=16384 max_connect_errors=1000 max_user_connections=20000 innodb_buffer_pool_size=8G innodb_buffer_pool_chunk_size=2G innodb_buffer_pool_instances=4 innodb_log_file_size=512M innodb_log_buffer_size=32M innodb_thread_concurrency=17 innodb_autoextend_increment=64 innodb_concurrency_tickets=5000 innodb_old_blocks_time=1000 innodb_stats_on_metadata=0 innodb_file_per_table=1 innodb_checksum_algorithm=0 join_buffer_size=4M max_allowed_packet=128M sort_buffer_size=128M table_definition_cache=32767 binlog_row_event_max_size=16K sync_master_info=10000 sync_relay_log=10000 sync_relay_log_info=10000 event_scheduler=ON innodb_flush_neighbors=1 innodb_page_size=16K innodb_read_io_threads=8 innodb_write_io_threads=8 innodb_flush_log_at_trx_commit=1 flush_time=0 thread_stack=256k thread_cache_size=128 open_files_limit=65535 tmp_table_size=500M max_heap_table_size=500M character_set_server=utf8mb4 sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 # # Settings user and group are ignored when systemd is used. # # If you need to run mysqld under a different user or group, # # customize your systemd unit file for mariadb according to the # # instructions in http://fedoraproject.org/wiki/Systemd wait_timeout=28800 interactive_timeout=28800 skip-name-resolve binlog_cache_size = 1M # # [client] port=3306 socket=/tmp/mysql.sock default-character-set=utf8mb4 [mysqld_safe] open-files-limit=32767 innodb_open_files=32767 |
Dockerfile 文件内容如下：
1 2 3 4 5 6 |
2、构建容器
进入Dockerfile文件所在的目录，执行下面的命令进行容器构建
docker build -t mysql:v8.0.20 .
使用docker image 命令查看构建的镜像
3、使用镜像创建mysql容器
测试1
docker run --name hd-mysql -p 3306:3306 -d mysql:v8.0.20
容器hd-mysql 数据库root密码为root
测试2
删除测试1创建的hd-mysql容器, 使用下面命令来创建容器
docker run --name hd-mysql -p 3306:3306 -e MYSQL_ROOT_PASSWORD=hd2020 -d mysql:v8.0.20
容器hd-mysql 数据库root密码为hd2020 , 我们可以看到虽然我们在构建mysql8.0.20镜像的时候，初始数据库密码为root， 在启动容器的时候，我们使用 -e MYSQL_ROOT_PASSWORD 来更新了root密码。
ps: 我们这个mysql8.0.20镜像做了数据库优化。
