From ee87721ebfb9ccc08906dbffc5cb3c9c023ff407 Mon Sep 17 00:00:00 2001
From: sue445 <sue445@sue445.net>
Date: Sun, 5 Apr 2026 23:18:40 +0900
Subject: [PATCH] Fix error in `docker-compose.test.yml`

```
Run docker compose --file docker-compose.test.yml run sut
 Network dockerfile-heroku-cli_default  Creating
 Network dockerfile-heroku-cli_default  Created
/usr/bin/env: unrecognized option: S
BusyBox v1.37.0 (2025-12-16 14:19:28 UTC) multi-call binary.

Usage: env [-i0] [-u NAME]... [-] [NAME=VALUE]... [PROG ARGS]

Print current environment or run PROG after setting up environment

	-, -i	Start with empty environment
	-0	NUL terminated output
	-u NAME	Remove variable from environment
```
---
 Dockerfile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Dockerfile b/Dockerfile
index 7f1ec0c..5bd8a89 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM node:24-alpine
 
-RUN apk --update --no-cache add bash git openssh-client
+RUN apk --update --no-cache add bash git openssh-client coreutils
 
 ENV HEROKU_CLI_VERSION 11.1.1