List Lambdas functions

.. image:: https://github.com/epsagon/list-lambdas/blob/master/list-lambdas.png :align: center

(Based on photo <https://commons.wikimedia.org/wiki/File:AWS_Lambda_logo.svg>_ by Valve Software / CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0/deed.en>_)

Motivation

• Read our blog post, "The curse of dead Lambda functions": https://medium.com/epsagon/the-curse-of-dead-lambda-functions-228bf812c10a
• Enumerate list of Lambda functions from every region.
• Detect "dead" or unused Lambda functions.

Setup

.. code-block:: bash

git clone https://github.com/epsagon/list-lambdas
cd list-lambdas/
pip install -r requirements.txt
python list_lambdas.py

Docker

.. code-block:: bash

git clone https://github.com/epsagon/list-lambdas
cd list-lambdas/
docker build -t list_lambdas:latest .
docker run --rm -v $HOME/.aws:/root/.aws -t list_lambdas:latest --profile myprofile

Example Outputs

CLI:

.. image:: https://github.com/epsagon/list-lambdas/blob/master/examples/cli.png

CSV file:

.. image:: https://github.com/epsagon/list-lambdas/blob/master/examples/csv.png

Usage

Filter only Lambda functions that have not been active in the last 10 days:

.. code-block:: bash

python list_lambdas.py --inactive-days-filter 10

Print extended information to the screen (same as in the CSV file):

.. code-block:: bash

python list_lambdas.py --all

Sort by a chosen column (e.g. by last invocation time):

.. code-block:: bash

python list_lambdas.py --sort-by last-invocation

Output table (with extra data) to a CSV file:

.. code-block:: bash

python list_lambdas.py --csv lambdas.csv

Provide credentials:

.. code-block:: bash

python list_lambdas.py --token-key-id <access_key_id> --token-secret <secret_access_key>