simple base apt install

[zbb88888]

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[gemini-code-assist]

Summary of Changes

Hello @zbb88888, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request aims to simplify the base Docker image by streamlining its package dependencies. The primary change involves removing a suite of strongSwan-related packages, which reduces the image's footprint and narrows its scope, while also adding a couple of general-purpose utilities for improved functionality.

Highlights

• Dependency Reduction: Removed a significant number of strongSwan (IPsec/VPN) related packages (e.g., strongswan, strongswan-pki, libcharon-extra-plugins, etc.) from the dist/images/Dockerfile.base, simplifying the base image's dependency footprint.
• Utility Additions: Included j2cli (Jinja2 CLI) and lsof (list open files) utilities in the dist/images/Dockerfile.base for enhanced templating and debugging capabilities within the base image.
• Dockerfile Optimization: Made a minor adjustment to the apt install command in dist/images/Dockerfile.base by reordering the -y flag for consistency, ensuring it appears before --no-install-recommends.

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[gemini-code-assist]

Code Review

This pull request updates the package list in the base Dockerfile. It removes strongswan and its related packages, and adds j2cli and lsof.

I've left a comment with suggestions to sort the package list for maintainability and to add apt-get clean to reduce the final image size.

Additionally, the pull request description is currently empty. It would be very helpful to add details about why these package changes are being made, especially the removal of strongswan and the addition of j2cli. This context is crucial for reviewers and for future reference.

[gemini-code-assist]

I have a couple of suggestions to improve this RUN instruction:

1. Sort packages: For better maintainability and to make it easier to find packages in this list, please consider sorting them alphabetically. This also helps in preventing duplicate package entries.
2. Clean apt cache: To further reduce the image size, it's a good practice to clean the apt cache which stores the downloaded package files (.deb). You can do this by adding apt-get clean to the command chain before cleaning up the apt lists.

I've combined both suggestions in the code below.

        arping ca-certificates conntrack curl dnsutils ethtool hostname \
        inetutils-ping iproute2 ipset iptables iputils-tracepath ipvsadm j2cli \
        kmod libatomic1 libmnl0 libunbound8 libunwind8 logrotate lsof \
        ncat ndisc6 net-tools netbase openssl procps python3 \
        python3-netifaces python3-sortedcontainers tcpdump traceroute uuid-runtime && apt-get clean && \