chore: cleanup docker files caches

[saidsef]

Closes: #228

[saidsef]

/code pr

[saidsef]

🤖
Review of PR: "chore: cleanup docker files caches"

.devcontainer/Dockerfile

• Lines 6-9: Good addition of apt-get clean and removal of /var/lib/apt/lists/* to reduce the image size.

function/Dockerfile

• Lines 32-38: The removal of apt-get autoremove -yy and rm -rf /var/cache/apt/* /tmp/* might potentially leave unnecessary files in the image, increasing its size. Consider adding back apt-get autoremove -yy to remove unnecessary packages. Also, consider whether removing /var/cache/apt/* and /tmp/* might be beneficial for your use case to keep the image lean.
• Suggestion: After purging curl, it's a good practice to clean up and remove unnecessary files. However, ensure that this does not remove files needed by dependencies inadvertently.

function/Dockerfile.server

• Lines 22-29: The restructuring of commands to combine apt-get update and apt-get install is efficient. However, the removal of apt-get upgrade -y could be reconsidered. While it's generally not recommended to run apt-get upgrade in a Dockerfile due to the potential for non-deterministic builds, there might be specific cases where it's necessary for security updates. If this is not one of those cases, then the removal is justified.
• The addition of mkdir -p /opt/tika/libs after package installation commands is logically placed, ensuring that the directory exists before it's used.
• Ensure that the removal of apt-get upgrade -y aligns with your project's policy on handling base image updates and security patches.

General Suggestions:

• Consistency in cleanup: Ensure that all Dockerfiles follow a consistent approach to cleaning up after package installations to minimize the image size. This includes running apt-get clean, removing /var/lib/apt/lists/*, and potentially other temporary files that are not needed in the final image.
• Security practices: Regularly review Dockerfiles for opportunities to enhance security, such as minimizing the number of installed packages, using non-root users, and scanning images for vulnerabilities.

Example for Enhancing Cleanup:

RUN apt-get update && apt-get install -y --no-install-recommends <package-name> \
    && apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/* /var/cache/apt/* /tmp/* /var/tmp/*

This example demonstrates a more comprehensive cleanup process that could be applied to ensure Docker images are as lean and secure as possible.

_{> gpt-4-turbo-preview [pr | 2]}