DL3042

mirror of https://github.com/hadolint/hadolint.git synced 2025-12-17 03:24:08 +00:00

Table of Contents

Avoid cache directory with pip install --no-cache-dir <package>

Problematic code:
Correct code:
Rationale:

Avoid cache directory with `pip install --no-cache-dir <package>`

Problematic code:

RUN pip3 install MySQL_python

Correct code:

RUN pip3 install --no-cache-dir MySQL_python

Rationale:

Once a package is installed, it does not need to be re-installed and the Docker cache can be leveraged instead. Since the pip cache makes the images larger and is not needed, it's better to disable it.

Avoid cache directory with pip install --no-cache-dir <package>

Problematic code:

Correct code:

Rationale:

Avoid cache directory with `pip install --no-cache-dir <package>`