Database backup in docker environment (postgresql, mysql) example code

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

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

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

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