aws cli using docker

docker_aws.sh

#!/bin/sh

session=~/.aws/session

establish_session() {
	read -p 'code: ' code
	file=$(uuidgen)
	envs=$(env | grep AWS | sed -e 's/^/-e /')

	docker run --rm -it -v $PWD:/work $envs --workdir /work --entrypoint bash amazon/aws-cli -c "aws sts get-session-token --serial-number $AWS_MFA_DEVICE --token-code $code > /work/$file"

	mv $file $session

	echo 'a new session has been established! 🍻'
}

check_session() {
	test -r ~/.aws/session || return 1

	src=$(cat $session | jq -r .Credentials.Expiration)
	now=$(date +%s)
	exp=$(date -j -f "%Y-%m-%dT%H:%M:%S+00:00" $src +%s)

	test $now -lt $exp || return 1

	return 0
}

check_session

test $? -ne 0 && establish_session

envs=$(cat $session | jq -r '.Credentials | "-e AWS_ACCESS_KEY_ID=\(.AccessKeyId) -e AWS_SECRET_ACCESS_KEY=\(.SecretAccessKey) -e AWS_SESSION_TOKEN=\(.SessionToken)"')

docker run --rm -it -v $PWD:/work $envs --workdir /work amazon/aws-cli $@