Import and export of MySQL data in Docker

After the server uses Docker, make a note of the backup and restore of the database:

Since docker is not an entity, to export the mysql database to the physical machine, the command is as follows:

1: Check the mysql running name

#docker ps

result:



 

2: Backup the docker database

From the results of the first step, we can see that our mysql is running in a docker container called mysql_server. And the database we want to back up is in it, called test_db. The username and password of mysql are both root, and we will back up the file to the /opt/sql_bak folder.

docker exec -it   mysql_server [docker container name/ID] mysqldump -uroot -p123456 [database password] test_db [database name] > /opt/sql_bak/test_db.sql [export table path]

 

3: Import the docker database

method 1:

Import the file into the container first
#docker cp **.sql [Container name]:/root/
into the container
#docker exec -ti [container name/ID]sh
Import file into database
# mysql -uroot -p [database name] < ***.sql

Method 2:

docker exec -i mysql_server [docker container name/ID] mysqltest_db_copy [database name] < /opt/sql_bak/test_db.sql [local data table path]

Note: The parameter -it needs to be replaced with -i here,
otherwise an error will be reported: " the input device is not a TTY "