Don't cache pip packages in docker images

The pip cache increases the size of the docker images needlessly

Author: manthey

example-average-color/Dockerfile

@@ -1,8 +1,9 @@
 FROM python:3.11-slim
 LABEL maintainer="Kitware, Inc. <[email protected]>"
 
-RUN pip install --find-links https://girder.github.io/large_image_wheels large_image[sources]
-RUN pip install girder-slicer-cli-web
+RUN pip install --no-cache-dir --find-links https://girder.github.io/large_image_wheels large_image[sources]
+
+RUN pip install --no-cache-dir girder-slicer-cli-web
 
 COPY . /
 ENTRYPOINT ["python", "./cli_list.py"]

example-girder-requests/Dockerfile

@@ -1,9 +1,9 @@
 FROM python:3.11-slim
 MAINTAINER David Manthey <[email protected]>
 
-RUN pip install --find-links https://girder.github.io/large_image_wheels large_image[sources]
-RUN pip install girder-slicer-cli-web
-RUN pip install girder-client
+RUN pip install --no-cache--dir --find-links https://girder.github.io/large_image_wheels large_image[sources]
+RUN pip install --no-cache--dir girder-slicer-cli-web
+RUN pip install --no-cache--dir girder-client
 
 COPY . $PWD
 ENTRYPOINT ["python", "./cli_list.py"]

small-docker/Dockerfile

@@ -14,7 +14,7 @@ RUN chmod a+x /usr/local/bin/groupadd
 RUN touch /usr/local/bin/useradd
 RUN chmod a+x /usr/local/bin/useradd
 
-RUN pip install girder-slicer-cli-web
+RUN pip install --no-cache-dir girder-slicer-cli-web
 COPY . $PWD
 
 ENTRYPOINT ["python", "./cli_list.py"]