diff --git a/hadolint/Dockerfile b/hadolint/Dockerfile
new file mode 100644
index 0000000..f5d9d33
--- /dev/null
+++ b/hadolint/Dockerfile
@@ -0,0 +1,8 @@
+FROM ubuntu
+MAINTAINER someone@example.com
+RUN apt-get update && apt-get install -y python3 pip
+COPY . /app
+WORKDIR /app
+RUN chmod 777 /app
+CMD ["python3", "app.py"]
+
</div><div class="naked_ctrl">
<form action="/index.cgi/contrast" method="get" name="gate">
<p><a href="http://altstyle.alfasado.net">AltStyle</a> によって変換されたページ <a href="https://patch-diff.githubusercontent.com/raw/coderabbitai/coderabbit-pr-review/pull/18.diff">(-&gt;オリジナル)</a>
/ <label>アドレス: <input type="text" name="naked_post_url" value="https://patch-diff.githubusercontent.com/raw/coderabbitai/coderabbit-pr-review/pull/18.diff" size="22" /></label> <label>モード: <select name="naked_post_mode">
<option value="default">デフォルト</option>
<option value="speech">音声ブラウザ</option>
<option value="ruby">ルビ付き</option>
<option value="contrast" selected="selected">配色反転</option>
<option value="larger-text">文字拡大</option>
<option value="mobile">モバイル</option>
</select>
<input type="submit" value="表示" />
</p>
</form>
</div>