From 46a012140ca73463fc821002072e871544b8c1b8 Mon Sep 17 00:00:00 2001
From: "Simon L." <szaimen@e.mail.de>
Date: Tue, 10 Jun 2025 14:03:43 +0200
Subject: [PATCH] ipv6-docs: mention that
 `"com.docker.network.enable_ipv6":"true"` enabled ipv6 by default for all new
 docker networks

Signed-off-by: Simon L. <szaimen@e.mail.de>
---
 docker-ipv6-support.md | 31 +++++++++++++++++++------------
 1 file changed, 19 insertions(+), 12 deletions(-)

diff --git a/docker-ipv6-support.md b/docker-ipv6-support.md
index 3a3dbb33..5e61ba56 100644
--- a/docker-ipv6-support.md
+++ b/docker-ipv6-support.md
@@ -4,19 +4,23 @@
 First of all upgrade your docker installation to v27.0.1 or higher.
 1. Then edit `/etc/docker/daemon.json` (or `~/.config/docker/daemon.json` in case of docker-rootless), add the below json:
 
-    ```json
-    {
-      "default-network-opts": {"bridge":{"com.docker.network.enable_ipv6":"true"}}
-    }
-    ```
+> [!WARNING]
+> This will enable ipv6 for all new docker networks by default!
 
-    Save the file.
+```json
+{
+    "default-network-opts": {"bridge":{"com.docker.network.enable_ipv6":"true"}}
+}
+```
+
+And save the file.
 
 2.  Reload the Docker configuration file.
 
-    ```console
-    sudo systemctl restart docker
-    ```
+```console
+sudo systemctl restart docker
+```
+
 3. Make sure that ipv6 is enabled for the internal `nextcloud-aio` network by running `sudo docker network inspect nextcloud-aio | grep EnableIPv6`. On a new instance, this command should return that it did not find a network with this name. Then you can run `sudo docker network create nextcloud-aio` in order to create the network with ipv6-support. However if it finds the network and its value `EnableIPv6` is set to false, make sure to follow https://github.com/nextcloud/all-in-one/discussions/4989 in order to recreate the network and enable ipv6 for it.
 
 ## Docker Desktop (Windows and macOS)
@@ -25,9 +29,12 @@ Then, on Windows and macOS which use Docker Desktop, you need to go into the set
 
 1. You need to now adjust this json file:
 
-    ```
-    "default-network-opts": {"bridge":{"com.docker.network.enable_ipv6":"true"}}
-    ```
+> [!WARNING]
+> This will enable ipv6 for all new docker networks by default!
+
+```json
+"default-network-opts": {"bridge":{"com.docker.network.enable_ipv6":"true"}}
+```
 
 2. Add these values to the json and make sure to keep the other currently values and that you don't see `Unexpected token in JSON at position ...` before attempting to restart by clicking on `Apply & restart`.
 3. Make sure that ipv6 is enabled for the internal `nextcloud-aio` network by running `sudo docker network inspect nextcloud-aio | grep EnableIPv6`. On a new instance, this command should return that it did not find a network with this name. Then you can run `sudo docker network create nextcloud-aio` in order to create the network with ipv6-support. However if it finds the network and its value `EnableIPv6` is set to false, make sure to follow https://github.com/nextcloud/all-in-one/discussions/4989 in order to recreate the network and enable ipv6 for it.