backup mysql database to any dest support by rclone
docker run --rm \
-e MYSQL_USER="mysql-user" \
-e MYSQL_PASSWORD="mysql-password" \
-e MYSQL_HOST="mysql-host" \
-e MYSQL_PORT="3306" \
-e MYSQL_DATABASES="db1 db2 db3" \
-e RCLONE_DEST="s3:bucket/path-to-backup/" \
-v $PWD/your-rclone.conf:/rclone.conf \
everyx/mysql-backup