【MySQL】Docker搭建MySQL8.0

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Docker搭建MySQL8.0

目的:

對Docker有一個感性的認識，而後運用docker作一些實驗和測試工做。

Docker是dotCloud開源的一個使用Go語言編寫的基於Linux容器(Linux Containers,LXC)的容器引擎。

看到Docker的那個官方圖，確實能夠比喻爲:宿主機Linux是一個運輸船，那麼Docker就是一個個相對獨立的集裝箱，你不用管集裝箱裏面裝的是什麼的。而Docker也是如黑盒子通常，提供着各類各樣的服務，如:MySQL，Oracle，Nginx，tomcat等等那些耳熟能詳的中間件，數據庫等服務。但不用管裏面的具體細節。

一樣，Docker也能夠搭建各類各樣的程序員的開發環境，如:java,python,php,c等基礎構件環境，方便咱們站在巨人的肩膀上，繼續前行。

固然它也有不錯的優勢：

• 性能卓越：Docker是一個「操做系統級別的虛擬化」，能夠達到秒級啓動。查看【Comparing Virtual Machines and Linux Containers Performance 】論文摘要。（地址:https://www.infoq.com/news/2014/08/vm-containers-performance/）對 CPU、內存、網絡和 I/O 作了benchmark。同時，在KVM和Docker不一樣環境之下，運行mysql和redis作數據的採樣，Redis 側重於網絡棧的性能。而 MySQL 側重於內存，網絡和文件系統的性能。而且提出一些質疑，建議在物理的 Linux 服務器上運行Linux Containers。
• 可移植性：便於遷移部署，減小運維和迭代的時間。

1.安裝Docker

環境:14.04.5 LTS

因爲docker安裝能夠直接看官方文檔，部署簡單。不贅述。Docker安裝成功後，查看版本:

root@ubuntudoc:~# docker --version
Docker version 18.06.3-ce, build d7080c1

2.查看docker鏡像

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官方鏡像

docker pull mysql

4. 查看目前的鏡像

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.運行docker mysql鏡像

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

上述命令的參數，有以下含義:

1. --name指定了你要取的名字。
2. -p對應，須要映射出來的端口。好比:3306:3306,意識表示爲zsdmysql的容器裏面的3306端口對應我外面這個虛擬機的3306端口。
3. -e是mysql的命令，設置root的密碼爲123456
4. -d是運行的鏡像，這裏是mysql 容器鏡像

6.查看目前運行的容器

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.進入MySQL

root@ubuntudoc:~# docker exec -it zsdmysql bash
### 下述表明容器裏面的狀況了
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>

---------------------------------------------------分割線--------------------------------------------------------

8. 創建目錄映射的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.經過tree命令，能夠看到數據目錄映射爲主機的目錄

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