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AWS CLI Mfa Oh My Zsh

oh-my-zsh plugin for easy aws mfa access

joepjoosten
|
17 stars
6 forks
Install Plugin

oh-my-zsh-aws-mfa

oh-my-zsh plugin for AWS CLI MFA based on https://github.com/sweharris/aws-cli-mfa support for passing totp as an argument added by kt-caylent

Using settings from .aws/config

Now also supports "mfadevice" that is specified in profile (even with "sourceprofile").

When "role_arn" is specified, it will assume the role after successful mfa login, and set the credentials for that assumed role

Install Oh-My-Zsh AWS MFA Plugin

  1. git clone --depth=1 https://github.com/joepjoosten/aws-cli-mfa-oh-my-zsh.git "$ZSH/custom/plugins/aws-mfa"
  2. enable it in plugins=(… aws-mfa) in your zshrc file
  3. source ~/.zshrc

Using Oh-My-Zsh AWS MFA Plugin

This plugin adds a new zsh alias, aws-mfa, this plugin has five ways you can use it:

  1. Call aws-mfa with no arguments. This will cause it to prompt you interactively for a TOTP code for your current active AWS_PROFILE.
  2. Call aws-mfa 123456 where 123456 is your 6-digit mfa code from your virtual MFA device (such as Google Authenticator, FreeOTP, etc)
  3. Call aws-mfa my-aws-profile where my-aws-profile is the name of the AWS_PROFILE you want to mfa authenticate to. It will prompt for TOTP as in case #1.
  4. Call aws-mfa my-aws-profile 123456 where my-aws-profile is the name of the AWS_PROFILE you want to mfa authenticate to and 123456 is your TOTP code.
  5. Call aws-mfa my-aws-profile 123456 temp-profile where my-aws-profile is the name of the AWSPROFILE to mfa authenticate to, 123456 is your TOTP code, and temp-profile is the name of the AWSPROFILE to write the temporary credentials to

Note: Options 3, 4, and 5 only make sense if you don't have an AWSPROFILE already defined. The objective being to go from having no AWSPROFILE defined to having mfa-authenticated STS temporary credentials in one command.

Furthermore, if you are using the zsh plugin for aws and have set your profile using it's asp function, this will interfere with both options 3 and 4, because it will inject it's AWS_PROFILE information into all subshells, causing all requests to utilize the profile defined with asp rather than the argument you provide here. You can correct for this by running asp with no arguments to unset the profile, and these setting will once again work as outlined above.