#! /bin/bash

TIMESTAMP=$(date +"%F")
BACKUP_DIR="/home/user/dumps/$TIMESTAMP"
MYSQL_USER="dumper"
MYSQL=/usr/bin/mysql
MYSQL_PASSWORD="password"
MYSQLDUMP=/usr/bin/mysqldump

export AZURE_STORAGE_ACCOUNT=
export AZURE_STORAGE_ACCESS_KEY=
export AZURE_CONTAINER=
export AZURE_BLOB_NAME=$(date +"%F").sql.gz

echo 'start separate DB dumps'
mkdir -p "$BACKUP_DIR/mysql"

databases=`$MYSQL --user=$MYSQL_USER -p$MYSQL_PASSWORD -e "SHOW DATABASES;" | grep -Ev "(Database|information_schema|performance_schema)"`

for db in $databases; do
  $MYSQLDUMP --force --opt --user=$MYSQL_USER -p$MYSQL_PASSWORD --databases $db | gzip > "$BACKUP_DIR/mysql/$db.gz"
done

echo 'start --all-databases dump'
/usr/bin/mysqldump --all-databases > "$BACKUP_DIR/all-databases.sql"
/bin/gzip "$BACKUP_DIR/all-databases.sql"

echo 'zip all the dumps'
/usr/bin/zip -r "$BACKUP_DIR.zip" $BACKUP_DIR

echo 'upload to azure storage'
/usr/bin/nodejs /usr/local/bin/azure storage blob upload "$BACKUP_DIR.zip" $AZURE_CONTAINER $AZURE_BLOB_NAME