AWS CLI MFA

It can help you to access AWS resources through AWS CLI with MFA token.

Preperation

1. AWS CLI environemnt (including configurations in ~/.aws)

$ curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"
$ unzip awscliv2.zip
$ sudo ./aws/install

2. AWS profile name should follow this rule. You need to prepare 2 profiles. One for your original IAM user ${profile}-default, and ther other is for your temporary profile, activated by MFA token. ${profile}.

# Let's assume your IAM user name is 'lol'
# ~/.aws/credentials
[lol-default]
aws_access_key_id = ...
aws_secret_access_key = ...

[lol]

Usage

# Your profile should be 'lol'
$ echo $AWS_PROFILE
  lol

# 1st usage: pass arn of mfa togegher
# then, credentials keep your temporary information.
$ aws-cli-mfa --mfa ${mfa-token} --arn arn:aws:iam::${account-id}:mfa/${username} 

# Further usage: only pass mfa token is enough
$ aws-cli-mfa --mfa ${mfa-token}