Envlet for Elixir

Envlet.inject! sets the process environment from one token. Nothing outside OTP.

Inject

Envlet.inject!()

stripe_key = System.fetch_env!("STRIPE_KEY")

Load

values = Envlet.load!()

database_url = values["DATABASE_URL"]

Get

stripe_key = Envlet.get!("STRIPE_KEY")

Install

def deps do
  [
    {:envlet, "~> 0.1.0"}
  ]
end

Set up

01
Install
Add {:envlet, "~> 0.1.0"} to deps in mix.exs.
02
Set one secret
ENVLET_TOKEN in the release environment.
03
Inject at boot
Call Envlet.inject! in your release config provider or at the top of the application start.

Will my app start if Envlet is down?: No, and that is the point. The SDK retries for a few seconds, then fails so you notice. It never starts your app with half an environment.
What does the host need?: One variable, ENVLET_TOKEN. Everything else arrives at boot.
Can I still set some values on the Elixir host?: Yes. A value the host already set wins. Pass override if you want Envlet to win instead.

One command. The right values for whoever runs it.