SSH into an EC2 Instance by Instance ID

sshinstance.sh

# Likely needs some tweaks to the `ssh $ip` line to account for key, user, etc.
sshinstance() {
    ip=`aws ec2 describe-instances \
        --output text \
        --instance-id $1 \
        --query 'Reservations[*].Instances[*].{Instance:PrivateIpAddress}' \
        | tr -d '\r' \
        | tr -d '\n'`

    ssh $ip
}