From 01a6b2dccd9cb4dd86ba70d37e6339ec4f581d5f Mon Sep 17 00:00:00 2001
From: yeasy <yangbaohua@gmail.com>
Date: Thu, 11 Jun 2026 23:17:58 -0700
Subject: [PATCH] fix(content): align compose demo Dockerfiles to COPY over ADD

The app and django compose demos used ADD for plain local files, but the
book's in-text versions of the same examples (11.3_usage.md, 11.6_django.md)
and its own guidance (7.2/7.3, appendix best_practices) all use COPY. Align
the demos with the documented practice.
---
 11_compose/demo/app/Dockerfile    | 2 +-
 11_compose/demo/django/Dockerfile | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/11_compose/demo/app/Dockerfile b/11_compose/demo/app/Dockerfile
index c7d22ba..135dfba 100644
--- a/11_compose/demo/app/Dockerfile
+++ b/11_compose/demo/app/Dockerfile
@@ -1,5 +1,5 @@
 FROM python:3.12-alpine
-ADD . /code
+COPY . /code
 WORKDIR /code
 RUN pip install redis flask
 CMD ["python", "app.py"]
diff --git a/11_compose/demo/django/Dockerfile b/11_compose/demo/django/Dockerfile
index b45a393..1cc93f4 100644
--- a/11_compose/demo/django/Dockerfile
+++ b/11_compose/demo/django/Dockerfile
@@ -2,6 +2,6 @@ FROM python:3
 ENV PYTHONUNBUFFERED 1
 RUN mkdir /code
 WORKDIR /code
-ADD requirements.txt /code/
+COPY requirements.txt /code/
 RUN pip install -r requirements.txt
-ADD . /code/
+COPY . /code/