How to install mysql5.6 in docker under ubuntu

1. Install mysql5.6

docker run mysql:5.6

Wait until all items are Download complete and installed

5.6: Pulling from library/mysql
10a267c67f42: Pull complete 
c2dcc7bb2a88: Pull completed 
17e7a0445698: Pull complete 
9a61839a176f: Pull complete 
d4657fda01d9: Pull complete 
c5278a445e5d: Pull complete 
197c0b76f238: Pull complete 
f54c5432bac4: Pull complete 
c26b15abee8a: Pull complete 
80dbe6022c18: Pull complete 
435678c09612: Pull complete 
Digest: sha256:84372107beb1de34bd4673049ea61bc35f374a2b4f19fd5a3abd4d0a2a50b715
Status: Downloaded newer image for mysql:5.6
error: database is uninitialized and password option is not specified 
 You need to specify one of MYSQL_ROOT_PASSWORD, MYSQL_ALLOW_EMPTY_PASSWORD and MYSQL_RANDOM_ROOT_PASSWORD

2. Use a local account to create a folder to map the mysql configuration file in docker

Continue to create 3 folders: conf, data, and logs

My configuration is as follows

val@val-linux:~/docker/mysql1$ pwd
/home/val/docker/mysql1
val@val-linux:~/docker/mysql1$ ls
conf data logs

3. Create a mysql container

Switch to the root account and enter the mysql1 folder you just created

root@val-linux:/home/val# cd /home/val/docker/mysql1/
root@val-linux:/home/val/docker/mysql1#

Create and start a container

docker run -p 33061:3306 --name mysql1 -v $PWD/conf:/etc/mysql -v $PWD/logs:/logs -v $PWD/data:/mysql_data -e MYSQL_ROOT_PASSWORD=123456 -d mysql:5.61
Use the local 33061 port to map the 3306 port of docker and name the container mysql1 
Use local /home/val/docker/mysql1/conf to map mysql conf 
Use local /home/val/docker/mysql1/logs to map mysql logs 
Use local /home/val/docker/mysql1/data to map mysql's mysql_data

Set the root password to 123456

4. Start the mysql container

docker start mysql11

5. Enter mysql bash

docker exec -it mysql1 env LANG=C.UTF-8 bash

Among them, env LANG=C.UTF-8 bash allows the docker command line to support Chinese

6. Copy the configuration file

cp /usr/my.cnf /etc/mysql/my.cnf

7. Log in to mysql

mysql -u root -p

Enter password to enter

8. Check mysql encoding

mysql> show variables like '%character%';
+--------------------------+----------------------------+
| Variable_name | Value |
+--------------------------+----------------------------+
| character_set_client | latin1 |
| character_set_connection | latin1 |
| character_set_database | latin1 |
| character_set_filesystem | binary |
| character_set_results | latin1 |
| character_set_server | latin1 |
| character_set_system | utf8 |
| character_sets_dir | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+
8 rows in set (0.01 sec)

Found that it is not utf-8 encoding

9. Modify mysql encoding

Exit mysql, exit docker

mysql> exit
Bye
root@8b83a30acbf8:/# exit
exit
root@val-linux:/home/val/docker/mysql1#

Modify the my.cnf configuration file

root@val-linux:/home/val/docker/mysql1# vim conf/my.cnf

Press i to enter edit mode

join in

[client] default-character-set=utf8 
[mysql] default-character-set=utf8 
[mysqld] character-set-server=utf8 1
esc :wq! Save and exit

10. Restart mysql in docker and check the code again

root@val-linux:/home/val/docker/mysql1# docker stop mysql1
mysql1
root@val-linux:/home/val/docker/mysql1# docker start mysql1
mysql1
root@val-linux:/home/val/docker/mysql1# docker exec -it mysql1 env LANG=C.UTF-8 bash
root@8b83a30acbf8:/#mysql -u root -p
Enter password: 
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.6.36 MySQL Community Server (GPL)
Copyright (c) 2000, 2017, 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> show variables like '%character%';
+--------------------------+----------------------------+
| Variable_name | Value |
+--------------------------+----------------------------+
| character_set_client | utf8 |
| character_set_connection | utf8 |
| character_set_database | latin1 |
| character_set_filesystem | binary |
| character_set_results | utf8 |
| character_set_server | latin1 |
| character_set_system | utf8 |
| character_sets_dir | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+
8 rows in set (0.00 sec)

11. Create a database

mysql> create database rise;
Query OK, 1 row affected (0.00 sec) 
mysql> use rise;
Database changed

12. Create a user and authorize

mysql> grant all privileges on rise.* to val@'%' identified by '123456';
Query OK, 0 rows affected (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

% indicates any IP (IP can be specified), val is the username, 123456 is the password

The above is the method I introduced to you to install mysql5.6 in docker under ubuntu. I hope it will be helpful to you. If you have any questions, please leave me a message and I will reply to you in time!

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