set-session-token.sh

#! /bin/bash
#
# Usage
# $ source <(./set-session-token.sh arn:aws:iam::123456789012:mfa/msysyamamoto 123456)
#
serial_number=$1
token_code=$2

unset AWS_ACCESS_KEY_ID
unset AWS_SECRET_ACCESS_KEY
unset AWS_SESSION_TOKEN

result="$(aws sts get-session-token --serial-number "${serial_number}" --token-code "${token_code}" 2>&1)"

AWS_ACCESS_KEY_ID="$(echo "$result" | jq -r '.Credentials.AccessKeyId')"
AWS_SECRET_ACCESS_KEY="$(echo "$result" | jq -r '.Credentials.SecretAccessKey')"
AWS_SESSION_TOKEN="$(echo "$result" | jq -r '.Credentials.SessionToken')"

echo export AWS_ACCESS_KEY_ID=${AWS_ACCESS_KEY_ID}
echo export AWS_SECRET_ACCESS_KEY=${AWS_SECRET_ACCESS_KEY}
echo export AWS_SESSION_TOKEN=${AWS_SESSION_TOKEN}