From d85eb0495cfec6b687860d67813788c5ad866e35 Mon Sep 17 00:00:00 2001 From: Jonas Thelemann Date: Wed, 27 Mar 2019 10:50:03 +0100 Subject: [PATCH] Add _FILE Environment Variable Documentation --- docs/configuration/acme.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/docs/configuration/acme.md b/docs/configuration/acme.md index fee00912e..7f4fa7a7a 100644 --- a/docs/configuration/acme.md +++ b/docs/configuration/acme.md @@ -273,6 +273,8 @@ Useful if internal networks block external DNS queries. Here is a list of supported `provider`s, that can automate the DNS verification, along with the required environment variables and their [wildcard & root domain support](/configuration/acme/#wildcard-domains) for each. Do not hesitate to complete it. +Every lego environment variable can be overridden by their respective `_FILE` counterpart, which should have a filepath to a file that contains the secret as its value. +For example, `CF_API_EMAIL_FILE=/run/secrets/traefik_cf-api-email` could be used to provide a Cloudflare API email address as a Docker secret named `traefik_cf-api-email`. | Provider Name | Provider Code | Environment Variables | Wildcard & Root Domain Support | |-------------------------------------------------------------|----------------|---------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------|