SecretsManagerEnv (smenv) provides a convenient way to launch a processes with environment variables sourced from @AWS's Secrets Manager. Smenv is influenced by Vaultenv and Hashicorp's Envconsul.
Smenv is built around the concept of twelve factor apps.
smenv -s rails_secrets/prod -s hello_world_secret -r us-east-1 "rails s -b 0.0.0.0"