From 6e3e1f5fc9470ce1e1edbe747eb8aa5eb95385ed Mon Sep 17 00:00:00 2001
From: Zsombor Welker <fedora@zdeqb.com>
Date: Sun, 25 Apr 2021 18:51:26 +0200
Subject: [PATCH] Document unmanaging the docker0 interface

---
 README.md | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/README.md b/README.md
index 9a6dc0c..8ff34f5 100644
--- a/README.md
+++ b/README.md
@@ -126,6 +126,17 @@ For Fedora and RPM based systems [COPR](https://copr.fedorainfracloud.org/coprs/
     ]
     ```
 
+1. NetworkManager may reset the docker interface's configuration for systemd-resolved. If that happens than
+   the interface needs to be unmanaged. This may be done by creating a `/etc/NetworkManager/conf.d/99-docker.conf`:
+
+   ```ini
+   [main]
+   plugins=keyfile
+
+   [keyfile]
+   unmanaged-devices=interface-name:docker0
+   ```
+
 ### Configuration
 
 `systemd-resolved-docker` may be configured using environment variables. When installed using the RPM
-- 
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