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Aardvark

NetflixOSS Lifecycle Gitter chat

Aardvark Logo

Aardvark is a multi-account AWS IAM Access Advisor API (and caching layer).

Install:

mkvirtualenv aardvark
git clone git@github.com:Netflix-Skunkworks/aardvark.git
cd aardvark
python setup.py develop

Known Dependencies

  • libpq-dev

Configure Aardvark

The Aardvark config wizard will guide you through the setup.

% aardvark config

Aardvark can use SWAG to look up accounts. https://github.com/Netflix-Skunkworks/swag-client
Do you use SWAG to track accounts? [yN]: no
ROLENAME: Aardvark
DATABASE [sqlite:////home/github/aardvark/aardvark.db]:
# Threads [5]:

>> Writing to config.py
  • Whether to use SWAG to enumerate your AWS accounts. (Optional, but useful when you have many accounts.)
  • The name of the IAM Role to assume into in each account.
  • The Database connection string. (Defaults to sqlite in the current working directory. Use RDS Postgres for production.)

Create the DB tables

aardvark create_db

IAM Permissions:

Aardvark needs an IAM Role in each account that will be queried. Additionally, Aardvark needs to be launched with a role or user which can sts:AssumeRole into the different account roles.

AardvarkInstanceProfile:

  • Only create one.
  • Needs the ability to call sts:AssumeRole into all of the AardvarkRole's

AardvarkRole:

  • Must exist in every account to be monitored.
  • Must have a trust policy allowing AardvarkInstanceProfile.
  • Has these permissions:
iam:GenerateServiceLastAccessedDetails
iam:GetServiceLastAccessedDetails
iam:listrolepolicies
iam:listroles
iam:ListUsers
iam:ListPolicies
iam:ListGroups

So if you are monitoring n accounts, you will always need n+1 roles. (n AardvarkRoles and 1 AardvarkInstanceProfile).

Note: For locally running aardvark, you don't have to take care of the AardvarkInstanceProfile. Instead, just attach a policy which contains "sts:AssumeRole" to the user you are using on the AWS CLI to assume Aardvark Role. Also, the same user should be mentioned in the trust policy of Aardvark Role for proper assignment of the privileges.

Gather Access Advisor Data

You'll likely want to refresh the Access Advisor data regularly. We recommend running the update command about once a day. Cron works great for this.

Without SWAG:

If you don't have SWAG you can pass comma separated account numbers:

aardvark update -a 123456789012,210987654321

With SWAG:

Aardvark can use SWAG to look up accounts, so you can run against all with:

aardvark update

or by account name/tag with:

aardvark update -a dev,test,prod

API

Start the API

aardvark start_api -b 0.0.0.0:5000

In production, you'll likely want to have something like supervisor starting the API for you.

Use the API

Swagger is available for the API at <Aardvark_Host>/apidocs/#!.

Aardvark responds to get/post requests. All results are paginated and pagination can be controlled by passing count and/or page arguments. Here are a few example queries:

curl localhost:5000/api/1/advisors
curl localhost:5000/api/1/advisors?phrase=SecurityMonkey
curl localhost:5000/api/1/advisors?arn=arn:aws:iam::000000000000:role/SecurityMonkey&arn=arn:aws:iam::111111111111:role/SecurityMonkey
curl localhost:5000/api/1/advisors?regex=^.*Monkey$

Notes

Threads

Aardvark will launch the number of threads specified in the configuration. Each of these threads will retrieve Access Advisor data for an account and then persist the data.

Database

The regex query is only supported in Postgres (natively) and SQLite (via some magic courtesy of Xion in the sqla_regex file).

TLS

We recommend enabling TLS for any service. Instructions for setting up TLS are out of scope for this document.

TODO:

See TODO