[AWS] SSH connect to bastion host by name tag

실습하다가, bastion host IP 찾아보는거 너무 귀찮아서 만듬.

#!/bin/bash

if [ "$1" == "" ]; then
    echo "[ERROR] input key file name by parameter!"
    exit 0
fi

instacneTag='ec2-an2-imys-test-bastion'

publicip=$(aws ec2 describe-instances \ 
                    --filters "Name=tag:Name,Values=$instacneTag" \
                    --query "Reservations[0].Instances[0].PublicIpAddress"  --output text)
ssh -i $1 ec2-user@$publicip