yawsso

Yet Another AWS SSO - sync up AWS CLI v2 SSO login session to legacy CLI v1 credentials.

See also Release v1.0.0 Notes

Prerequisite

Required Python >= 3.6
Required AWS CLI v2
Assume you have already setup AWS SSO for your organization

Main Use Case

Install latest from PyPI like so:

pip install yawsso

Do your per normal SSO login and, have at least one active SSO session cache:

aws sso login --profile dev

To sync for all named profiles in config (i.e. lazy consensus), then just:

yawsso

To sync default profile and all named profiles, do:

yawsso --default

To sync default profile only, do:

yawsso --default-only

To sync for selected named profile, do:

yawsso -p dev

To sync for multiple selected named profiles, do:

yawsso -p dev prod

To sync for default profile as well as multiple selected named profiles, do:

yawsso --default -p dev prod

To sync for all named profiles start with prefix pattern lab*, do:

(zsh)
yawsso -p 'lab*'

(bash)
yawsso -p lab*

To sync for all named profiles start with lab* as well as dev and prod, do:

yawsso -p 'lab*' dev prod

Print help to see other options:

yawsso -h

Then, continue per normal with your daily tools. i.e.
- cdk deploy ...
- terraform apply ...
- cw ls -p dev groups
- awsbw -L -P dev
- sqsmover -s main-dlq -d main-queue
- ecs-cli ps --cluster my-cluster

Additional Use Cases

Rename Profile on Sync

Say, you have the following profile in your $HOME/.aws/config:

[profile dev]
sso_start_url = https://myorg.awsapps.com/start
sso_region = ap-southeast-2
sso_account_id = 123456789012
sso_role_name = AdministratorAccess
region = ap-southeast-2
output = json
cli_pager =

You want to populate access token as, say, profile name foo in $HOME/.aws/credentials:

[foo]
region = ap-southeast-2
aws_access_key_id = XXX
aws_secret_access_key = XXX
aws_session_token = XXX
...

Do like so:

yawsso -p dev:foo

Then, you can export AWS_PROFILE=foo and use foo profile!

Export Tokens

PLEASE USE THIS FEATURE WITH CARE SINCE ENVIRONMENT VARIABLES USED ON SHARED SYSTEMS CAN GIVE UNAUTHORIZED ACCESS TO PRIVATE RESOURCES.

🤚 START FROM VERSION 1.0.0, yawsso -e EXPORT TOKENS IN ROT13 ENCODED STRING.

Use -e flag if you want a temporary copy-paste-able time-gated access token for an instance or external machine.
Please note that, it uses default profile if no additional arguments pass.

yawsso -e | yawsso decrypt
export AWS_ACCESS_KEY_ID=xxx
export AWS_SECRET_ACCESS_KEY=xxx
export AWS_SESSION_TOKEN=xxx

This use case is especially tailored for those who use default profile and, who would like to PIPE commands as follows.

aws sso login && yawsso -e | yawsso decrypt | pbcopy

Otherwise, for a named profile, do:

yawsso -p dev -e | yawsso decrypt

Or, right away export credentials into the current shell environment variables, do:

yawsso -p dev -e | yawsso decrypt | source /dev/stdin

Note: ☝️ are mutually exclusive with the following 👇 auto copy into your clipboard. Choose one, a must!

If you have pyperclip package installed, yawsso will copy access tokens to your clipboard instead.

yawsso -e
Credentials copied to your clipboard for profile 'default'

You may pip install pyperclip or, together with yawsso as follows.

pip install 'yawsso[all]'

Login

You can also use yawsso subcommand login to SSO login then sync all in one go.

🙋‍♂️ NOTE: It uses default profile or AWS_PROFILE environment variable if optional argument --profile is absent

yawsso login -h
yawsso login

Otherwise you can pass the login profile as follows:

yawsso login --profile dev

Due to lazy consensus design, yawsso will sync all named profiles once SSO login has succeeded. If you'd like to sync only upto this login profile then use --this flag to limit as follows.

👉 Login using default profile and sync only upto this default profile

yawsso login --this

👉 Login using named profile dev and sync only upto this dev profile

yawsso login --profile dev --this

👉 Login using named profile dev and sync as foo. See above for more details on renaming, limited to one profile.

yawsso login --profile dev:foo

Login then Export token

Exporting access token also support with login subcommand as follows:

👉 Login using default profile, sync only upto this default profile and, print access token

yawsso login -e | yawsso decrypt

👉 Login using named profile dev, sync only upto this dev profile and, print access token

yawsso login --profile dev -e | yawsso decrypt

Auto Login then Sync

Like login, you may use yawsso subcommand auto to SSO login then sync all in one go.
It will check if SSO session has expired and, if so, yawsso will attempt to auto login again.

yawsso auto -h

(either)
yawsso auto --profile dev

(or)
export AWS_PROFILE=dev
yawsso auto

Encryption

yawsso can encrypt and decrypt some arbitrary string from stdin using ROT13 (a simple letter substitution cipher) as follows.

echo 'Hello this is a test' | yawsso encrypt
Uryyb guvf vf n grfg

echo 'Uryyb guvf vf n grfg' | yawsso decrypt
Hello this is a test

(or Pipe through some text corpus)
cat test.txt | yawsso encrypt

(or on Windows)
type test.txt | yawsso encrypt

This is the same as using trivial Unix tr command as follows.

echo 'Hello this is a test' | tr 'A-Za-z' 'N-ZA-Mn-za-m'
Uryyb guvf vf n grfg

echo 'Uryyb guvf vf n grfg' | tr 'A-Za-z' 'N-ZA-Mn-za-m'
Hello this is a test

Hence, you could also decode yawsso exported tokens using tr command, like so.

yawsso -p dev -e | tr 'A-Za-z' 'N-ZA-Mn-za-m'

Develop

Create virtual environment, activate it and then:

make install
make test
python -m yawsso --trace version

(Windows)

python -m venv venv
.\venv\Scripts\activate
pip install ".[dev,test]" .
pytest
python -m yawsso --trace version

Create issue or pull request welcome

License

MIT License

eduelias/yawsso