Hello Everyone

I just finished the migration from Redis single instance to DO Redis Managed Database, everything went smooooooth :)

In case someone interested to copy his Redis data to another Redis server (aka DO Redis managed database) the below script will help you to do that

#!/bin/bash

# Credit goes to Elliot Chance https://medium.com/@elliotchance/migrating-data-between-redis-servers-without-downtime-429e4c8048e6

# Small change is done by AhmadT (ahmadt a.t. gmail.com)


if [ $# -eq 0 ]; then
  echo "select a db"
  exit 1
fi

export DBnumber="$1"

echo "DB ${DBnumber}"

export OLD="redis-cli -n ${DBnumber}"
export NEW="redis-cli -n ${DBnumber} -p MYPORT -a PASSWORD"


for KEY in $($OLD --scan); do
    $OLD --raw DUMP "$KEY" | head -c-1 > /tmp/dump
    TTL=$($OLD --raw TTL "$KEY")
    case $TTL in
        -2)
            $NEW DEL "$KEY"
            ;;
        -1)
            $NEW DEL "$KEY"
            cat /tmp/dump | $NEW -x RESTORE "$KEY" 0
            ;;
        *)
            $NEW DEL "$KEY"
            let TTLEX="$TTL*1000"
            cat /tmp/dump | $NEW -x RESTORE "$KEY" "$TTLEX"
            ;;
    esac
    echo "$KEY (TTL = $TTL)"
done