ssm-config

Python package to load environment configuration from YAML files supporting overriding from environment variables and AWS SSM

Image you have an environment variable USERNAME=prod_user, an SSM parameter /prod/password=prod_password and the following YAML config file

default: &default
  username: a_user
  password: a_password
  host: a_host.com
prod:
  <<: *default
  username: <%= ENV['USERNANE'] %>
  password: <%= SSM['/prod/password'] %>

then the parsed config for prod will be

prod:
  username: prod_user
  password: prod_password
  host: a_host.com

The configuration can be loaded with

from ssm_config import load_env

dev_config = load_env('config.yml')  # load the config for the dev environment by default
staging_config = load_env('config.yml', env='staging')  # manually force to load the staging environment config