resize-eli-down.sh

#
# resize an ec2 from and GPU g4dn.xlarge to t3.medium  
#
AWS_INSTANCE_ID=i-0d286d48c371f57b1

TYPE=t3.medium
echo This will stop your instance $AWS_INSTANCE_ID to type $TYPE

# find name
echo Name tag is:
echo -e -n "\t"
aws ec2 describe-tags --filters "Name=resource-id,Values=$AWS_INSTANCE_ID" "Name=key,Values=Name" --output text|cut -f5
echo type is:
echo -e -n "\t"
aws ec2 describe-instances --instance-ids $AWS_INSTANCE_ID --query 'Reservations[*].Instances[*].InstanceType'     --output text                                                        
read -p "This will stop the instance. (Press Enter to continue)"
echo Stopping your instance.
aws ec2 stop-instances --instance-ids $AWS_INSTANCE_ID 
#echo type is:
#echo -e -n "\t"
#aws ec2 describe-instances --instance-ids $AWS_INSTANCE_ID --query 'Reservations[*].Instances[*].InstanceType'     --output text                                                        

aws ec2 modify-instance-attribute --instance-id $AWS_INSTANCE_ID  --instance-type '{"Value": "'$TYPE'"}'
echo New type is:
echo -e -n "\t"
aws ec2 describe-instances --instance-ids $AWS_INSTANCE_ID --query 'Reservations[*].Instances[*].InstanceType'     --output text                                                        
read -p "Do you want to start the instance? (Press Enter to continue, ^C to exit)"
echo "Restarting your instance with new size..."
aws ec2 start-instances --instance-ids $AWS_INSTANCE_ID