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A very simple bash script to snapshot all your AWS EC2 instances

instances=$(aws ec2 describe-instances --output text --query 'Reservations[].Instances[].InstanceId')
echo
echo BACKUP STARTED...
for instance in $instances; do
echo ----------------------------------
echo snapshoting instance $instance ...
volumes=$(aws ec2 describe-volumes --output text --filters Name=attachment.instance-id, \
Values=$instance --query 'Volumes[].VolumeId')
for volume in $volumes; do
echo snapshoting $volume ...
aws ec2 create-snapshot --volume-id $volume --description "$volume volume snapshot."
done
echo ...instance $instance is backed up.
done
echo ----------------------------------
echo BACKUP COMPLETED...
echo
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