From 44a5fe95d4d938cd54feb31d2ad3ed3e18ec946c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marcus=20M=C3=BCller?=
 <25648755+M-arcus@users.noreply.github.com>
Date: Tue, 15 May 2018 18:49:40 +0200
Subject: [PATCH] [DOCS] Environment variables: Add explanation

Resolves https://github.com/friendica/friendica/issues/4791
---
 doc/de/Settings.md | 8 ++++++++
 doc/htconfig.md    | 8 ++++++++
 2 files changed, 16 insertions(+)

diff --git a/doc/de/Settings.md b/doc/de/Settings.md
index 8a654e32c..b7b696ea6 100644
--- a/doc/de/Settings.md
+++ b/doc/de/Settings.md
@@ -344,6 +344,14 @@ Mit den folgenden Einstellungen kannst du die Zugriffsdaten für den Datenbank S
     $db_pass = 'db_password';
     $db_data = 'database_name';
 
+Sollten alle der folgenden Environment-Variablen gesetzt sein, wird Friendica diese anstatt der vorher konfigurierten Werte nutzen.
+
+    MYSQL_HOST
+    MYSQL_PORT
+    MYSQL_USERNAME
+    MYSQL_PASSWORD
+    MYSQL_DATABASE
+
 ## Administratoren
 
 Du kannst einen, oder mehrere Accounts, zu Administratoren machen.
diff --git a/doc/htconfig.md b/doc/htconfig.md
index 6598fa142..4743da444 100644
--- a/doc/htconfig.md
+++ b/doc/htconfig.md
@@ -124,3 +124,11 @@ The configuration variables db_host, db_user, db_pass and db_data are holding yo
 If you need to specify a port to access the database, you can do so by appending ":portnumber" to the db_host variable.
 
     $db_host = 'your.mysqlhost.com:123456';
+
+If all of the following environment variables are set, Friendica will use them instead of the previously configured variables for the db:
+
+    MYSQL_HOST
+    MYSQL_PORT
+    MYSQL_USERNAME
+    MYSQL_PASSWORD
+    MYSQL_DATABASE