【MySQL】Docker搭建MySQL8.0

Docker搭建MySQL8.0

Docker搭建MySQL8.0

目的:

对Docker有一个感性的认识，然后运用docker做一些实验和测试工作。

Docker是dotCloud开源的一个使用Go语言编写的基于Linux容器(Linux Containers,LXC)的容器引擎。

看到Docker的那个官方图，确实可以比喻为:宿主机Linux是一个运输船，那么Docker就是一个个相对独立的集装箱，你不用管集装箱里面装的是什么的。而Docker也是如黑盒子一般，提供着各种各样的服务，如:MySQL，Oracle，Nginx，tomcat等等那些耳熟能详的中间件，数据库等服务。但不用管里面的具体细节。

同样，Docker也可以搭建各种各样的程序员的开发环境，如:java,python,php,c等基础构件环境，方便我们站在巨人的肩膀上，继续前行。

当然它也有不错的优点：

性能卓越：Docker是一个“操作系统级别的虚拟化”，可以达到秒级启动。查看【Comparing Virtual Machines and Linux Containers Performance 】论文摘要。（地址:https://www.infoq.com/news/2014/08/vm-containers-performance/）对 CPU、内存、网络和 I/O 做了benchmark。同时，在KVM和Docker不同环境之下，运行mysql和redis做数据的采样，Redis 侧重于网络栈的性能。而 MySQL 侧重于内存，网络和文件系统的性能。并且提出一些质疑，建议在物理的 Linux 服务器上运行Linux Containers。
可移植性：便于迁移部署，减少运维和迭代的时间。

1.安装Docker

环境:14.04.5 LTS

由于docker安装可以直接看官方文档，部署简单。不赘述。Docker安装成功后，查看版本:

root@ubuntudoc:~# docker --version

Docker version 18.06.3-ce, build d7080c1

2.查看docker镜像

root@ubuntudoc:~# docker search mysql

NAME                              DESCRIPTION                                     STARS               OFFICIAL            AUTOMATED

mysql                             MySQL is a widely used, open-source relation…   9238                [OK]

mariadb                           MariaDB is a community-developed fork of MyS…   3294                [OK]

mysql/mysql-server                Optimized MySQL Server Docker images. Create…   681                                     [OK]

3.拉取mysql官方镜像

docker pull mysql

4. 查看目前的镜像

root@ubuntudoc:~# docker images

REPOSITORY                TAG                 IMAGE ID            CREATED             SIZE

nginx                     latest              6678c7c2e56c        10 days ago         127MB

mysql                     latest              9b51d9275906        10 days ago         547MB

dongweiming/web_develop   dev                 43fb02d9c1a3        3 years ago         294MB

5.运行docker mysql镜像

docker run -p 3306:3306 --name zsdmysql -e MYSQL_ROOT_PASSWORD=123456 -d mysql

上述命令的参数，有如下含义:

--name指定了你要取的名字。
-p对应，需要映射出来的端口。比如:3306:3306,意识表示为zsdmysql的容器里面的3306端口对应我外面这个虚拟机的3306端口。
-e是mysql的命令，设置root的密码为123456
-d是运行的镜像，这里是mysql 容器镜像

6.查看目前运行的容器

root@ubuntudoc:~# docker container ls

CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                               NAMES

3958ab15ea05        mysql               "docker-entrypoint.s…"   8 seconds ago       Up 6 seconds        0.0.0.0:3306->3306/tcp, 33060/tcp   zsdmysql

7.进入MySQL

root@ubuntudoc:~# docker exec -it zsdmysql bash

### 下述代表容器里面的情况了

root@3958ab15ea05:/# df -h

Filesystem      Size  Used Avail Use% Mounted on

overlay          53G  3.7G   47G   8% /

tmpfs            64M     0   64M   0% /dev

tmpfs          1000M     0 1000M   0% /sys/fs/cgroup

/dev/dm-0        53G  3.7G   47G   8% /etc/hosts

shm              64M     0   64M   0% /dev/shm

tmpfs          1000M     0 1000M   0% /proc/acpi

tmpfs          1000M     0 1000M   0% /proc/scsi

tmpfs          1000M     0 1000M   0% /sys/firmware

root@3958ab15ea05:/# mysql -uroot -p123456

mysql: [Warning] Using a password on the command line interface can be insecure.

Welcome to the MySQL monitor.  Commands end with ; or \g.

Your MySQL connection id is 8

Server version: 8.0.19 MySQL Community Server - GPL

Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>

---------------------------------------------------分割线--------------------------------------------------------

8. 建立目录映射的MySQL容器

docker run -p 3307:3306 --name zsdmysql02 \

-v /opt/mysql/conf:/etc/mysql \

-v /opt/mysql/logs:/var/log/mysql \

-v /opt/mysql/data:/var/lib/mysql \

-e MYSQL_ROOT_PASSWORD=123456 \

-d mysql

9.通过tree命令，可以看到数据目录映射为主机的目录

root@ubuntudoc:/opt/mysql# tree

.

|-- conf

|-- data

|   |-- #innodb_temp

|   |-- auto.cnf

|   |-- ca-key.pem

|   |-- ca.pem

|   |-- client-cert.pem

|   |-- client-key.pem

|   |-- ib_buffer_pool

|   |-- ib_logfile0

|   |-- ib_logfile1

|   |-- ibdata1

|   |-- mysql

|   |   |-- general_log.CSM

|   |   |-- general_log.CSV

|   |   |-- general_log_201.sdi

|   |   |-- slow_log.CSM

|   |   |-- slow_log.CSV

|   |   `-- slow_log_202.sdi

|   |-- mysql.ibd

|   |-- performance_schema

|   |   |-- accounts_138.sdi

|   |   |-- cond_instances_77.sdi

|   |   |-- data_lock_waits_154.sdi

|   |   |-- data_locks_153.sdi

|   |   |-- events_errors_su_132.sdi

|   |   |-- events_errors_su_133.sdi

|   |   |-- events_errors_su_134.sdi

|   |   |-- events_errors_su_135.sdi

|   |   |-- events_errors_su_136.sdi

|   |   |-- events_stages_cu_104.sdi

|   |   |-- events_stages_hi_105.sdi

|   |   |-- events_stages_hi_106.sdi

|   |   |-- events_stages_su_107.sdi

|   |   |-- events_stages_su_108.sdi

|   |   |-- events_stages_su_109.sdi

|   |   |-- events_stages_su_110.sdi

|   |   |-- events_stages_su_111.sdi

|   |   |-- events_statement_112.sdi

|   |   |-- events_statement_113.sdi

|   |   |-- events_statement_114.sdi

|   |   |-- events_statement_115.sdi

|   |   |-- events_statement_116.sdi

|   |   |-- events_statement_117.sdi

|   |   |-- events_statement_118.sdi

|   |   |-- events_statement_119.sdi

|   |   |-- events_statement_120.sdi

|   |   |-- events_statement_121.sdi

|   |   |-- events_statement_122.sdi

|   |   |-- events_statement_123.sdi

|   |   |-- events_transacti_124.sdi

|   |   |-- events_transacti_125.sdi

|   |   |-- events_transacti_126.sdi

|   |   |-- events_transacti_127.sdi

|   |   |-- events_transacti_128.sdi

|   |   |-- events_transacti_129.sdi

|   |   |-- events_transacti_130.sdi

|   |   |-- events_transacti_131.sdi

|   |   |-- events_waits_cur_78.sdi

|   |   |-- events_waits_his_79.sdi

|   |   |-- events_waits_his_80.sdi

|   |   |-- events_waits_sum_81.sdi

|   |   |-- events_waits_sum_82.sdi

|   |   |-- events_waits_sum_83.sdi

|   |   |-- events_waits_sum_84.sdi

|   |   |-- events_waits_sum_85.sdi

|   |   |-- events_waits_sum_86.sdi

|   |   |-- file_instances_87.sdi

|   |   |-- file_summary_by__88.sdi

|   |   |-- file_summary_by__89.sdi

|   |   |-- global_status_172.sdi

|   |   |-- global_variables_175.sdi

|   |   |-- host_cache_90.sdi

|   |   |-- hosts_139.sdi

|   |   |-- keyring_keys_145.sdi

|   |   |-- log_status_165.sdi

|   |   |-- memory_summary_b_147.sdi

|   |   |-- memory_summary_b_148.sdi

|   |   |-- memory_summary_b_149.sdi

|   |   |-- memory_summary_b_150.sdi

|   |   |-- memory_summary_g_146.sdi

|   |   |-- metadata_locks_152.sdi

|   |   |-- mutex_instances_91.sdi

|   |   |-- objects_summary__92.sdi

|   |   |-- performance_time_93.sdi

|   |   |-- persisted_variab_178.sdi

|   |   |-- prepared_stateme_166.sdi

|   |   |-- replication_appl_158.sdi

|   |   |-- replication_appl_159.sdi

|   |   |-- replication_appl_160.sdi

|   |   |-- replication_appl_161.sdi

|   |   |-- replication_appl_163.sdi

|   |   |-- replication_appl_164.sdi

|   |   |-- replication_conn_155.sdi

|   |   |-- replication_conn_157.sdi

|   |   |-- replication_grou_156.sdi

|   |   |-- replication_grou_162.sdi

|   |   |-- rwlock_instances_94.sdi

|   |   |-- session_account__144.sdi

|   |   |-- session_connect__143.sdi

|   |   |-- session_status_173.sdi

|   |   |-- session_variable_176.sdi

|   |   |-- setup_actors_95.sdi

|   |   |-- setup_consumers_96.sdi

|   |   |-- setup_instrument_97.sdi

|   |   |-- setup_objects_98.sdi

|   |   |-- setup_threads_99.sdi

|   |   |-- socket_instances_140.sdi

|   |   |-- socket_summary_b_141.sdi

|   |   |-- socket_summary_b_142.sdi

|   |   |-- status_by_accoun_168.sdi

|   |   |-- status_by_host_169.sdi

|   |   |-- status_by_thread_170.sdi

|   |   |-- status_by_user_171.sdi

|   |   |-- table_handles_151.sdi

|   |   |-- table_io_waits_s_100.sdi

|   |   |-- table_io_waits_s_101.sdi

|   |   |-- table_lock_waits_102.sdi

|   |   |-- threads_103.sdi

|   |   |-- user_defined_fun_179.sdi

|   |   |-- user_variables_b_167.sdi

|   |   |-- users_137.sdi

|   |   |-- variables_by_thr_174.sdi

|   |   `-- variables_info_177.sdi

|   |-- private_key.pem

|   |-- public_key.pem

|   |-- server-cert.pem

|   |-- server-key.pem

|   |-- sys

|   |   `-- sys_config.ibd

|   |-- undo_001

|   `-- undo_002

`-- logs

7 directories, 126 files