Fetch temporary AWS session credentials for an MFA-protected account, and merge them into local dotenv file (.env).
$ npm i -g @korourke/awsmfa
Your aws credentials file should have at least one profile, configured with an aws_access_key_id and aws_secret_access_key:
[default]
aws_access_key_id=EXAMPLEACCESSKEYID
aws_secret_access_key=exampleSecretAccessKey
Running this script will retrieve session credentials with the passed MFA token/code, then populate the .env file in the current working directory with AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, and AWS_SESSION_TOKEN. If a .env file already exists these values will be merged into the existing file, and all other variables and comments will be preserved.
Basic usage (profile [default]):
$ awsmfa <MFA_CODE>
Usage with other options:
$ awsmfa --profile some.profile --duration-hours 12 <MFA_CODE>