在Dockerfile中我有一个安装层requirements.txt:
FROM python:2.7
RUN pip install -r requirements.txt
当我构建docker镜像时,无论对此文件所做的任何更改,它都会运行整个过程.
如何pip install -r requirements.txt在文件发生更改时确保仅运行Docker ？
Removing intermediate container f98c845d0f05
Step 3 : RUN pip install -r requirements.txt
---> Running in 8ceb63abaef6
Collecting https://github.com/tomchristie/django-rest-framework/archive/master.zip (from -r requirements.txt (line 30))
Downloading https://github.com/tomchristie/django-rest-framework/archive/master.zip
Collecting Django==1.8.7 (from -r requirements.txt (line 1))