Bastion Key 생성

export BASTION_KEY_NAME=yuran2

aws ec2 create-key-pair \
--key-name ${BASTION_KEY_NAME} \
--output text \
--query 'KeyMaterial' > ${BASTION_KEY_NAME}.pem

Key Pair 권한 설정

chmod 400 ./${BASTION_KEY_NAME}.pem