of postgresql mysql instance code

posgresql backup/restore

1. Backup

DATE=`date +%Y%m%d-%H%M`
BACK_DATA=xxapp-data-${DATE}.out #  Set the name of the backup file here ,  The date was added to prevent duplication 
docker exec pg-db pg_dumpall -U postgres > ${BACK_DATA} # pg-db  It's a database  docker  The name of the 

2. Restore

docker cp ${BACK_DATA} pg-db:/tmp
docker exec pg-db psql -U postgres -f /tmp/${BACK_DATA} postgres

mysql backup/restore

1. Backup

DATE=`date +%Y%m%d-%H%M`
BACK_DATA=xxapp-data-${DATE}.sql
# mysql-db  It's a database  docker  The name of the , xxxpwd  is  root  The user password , app-db  Is the name of the data to back up 
docker exec mysql-db mysqldump -uroot -pxxxpwd --databases app-db > ${BACK_DATA}

2. Restores the following ${BACK_DATA} to be replaced with the actual generated file name

docker cp ${BACK_DATA} mysql-db:/tmp 
docker exec -it mysql-db mysql -uroot -pxxxpwd 
mysql> source /tmp/${BACK_DATA}.sql
mysql> \q
Bye

supplement

postgresql backs up all databases, mysql backs up one database.

conclusion