From 11775ed6b72bef7e12892cbe2a151d55f831cc48 Mon Sep 17 00:00:00 2001
From: wschwab <31592931+wschwab@users.noreply.github.com>
Date: Thu, 24 Dec 2020 10:19:41 +0200
Subject: [PATCH] Update debian.md

Added workaround for `apt-key` deprecation errors
---
 engine/install/debian.md | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/engine/install/debian.md b/engine/install/debian.md
index edc1f7f184f4..d64c32cb1433 100644
--- a/engine/install/debian.md
+++ b/engine/install/debian.md
@@ -93,7 +93,16 @@ from the repository.
     ```bash
     $ curl -fsSL {{ download-url-base }}/gpg | sudo apt-key add -
     ```
-
+    Newer versions of Debian have deprecated using `apt-key` like this. If you 
+    are receiving the following error:
+    ```
+    Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)).
+    ```
+    then you can avoid it by using the following instead:
+    ```
+    curl -fsSL https://download.docker.com/linux/debian/gpg | sudo apt-key --keyring /etc/apt/trusted.gpg.d/docker-apt-key.gpg add -
+    ```
+    
     Verify that you now have the key with the fingerprint
     `9DC8 5822 9FC7 DD38 854A  E2D8 8D81 803C 0EBF CD88`, by searching for the
     last 8 characters of the fingerprint.