From 6ffa02145de3f12399697cbc3a488a8b6fe42da8 Mon Sep 17 00:00:00 2001
From: Cian Johnston <cian@coder.com>
Date: Thu, 12 Sep 2024 21:20:37 +0100
Subject: [PATCH] chore(docs/docker.md): update docs for DinD with Coder (#346)

(cherry picked from commit 287080c6659b9abe7a4a4f635c08cc9de2b814ee)
---
 docs/docker.md | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/docs/docker.md b/docs/docker.md
index 4ed032e3..ca09c724 100644
--- a/docs/docker.md
+++ b/docs/docker.md
@@ -1,7 +1,23 @@
 # Docker inside Envbuilder
 
 There are a number of approaches you can use to have access to a Docker daemon
-from inside Envbuilder:
+from inside Envbuilder.
+
+> Note: some of the below methods involve setting `ENVBUILDER_INIT_SCRIPT` to
+> work around the lack of an init system inside the Docker container.
+> If you are attempting to use the below approaches with [Coder](https://github.com/coder/coder),
+> you may need to instead add the relevant content of the init script to your
+> agent startup script in your template.
+> For example:
+> ```
+>   resource "coder_agent" "dev" {
+>     ...
+>     startup_script = <<-EOT
+>         set -eux -o pipefail
+>         nohup dockerd > /var/log/docker.log 2>&1 &
+>     EOT
+>   }
+> ```
 
 ## Docker Outside of Docker (DooD)