Add git and Git-lfs package for FastBack mod

[BlownIntoSpace]

Enhancement Type

A completely new feature

Describe the enhancement

The FastBack mod uses git to manage world versions. I believe it used to use jgit in the past, but now requires git and git-lfs to be natively installed.

I have tested it by installing the git binaries using

FROM itzg/minecraft-server:latest
RUN apt-get update && apt-get install -y git git-lfs

and it seems to run well when it works, but the fastback mod does seem to be unable to find the git executables half the time if i dont manually rebuild the image every time i launch the server, but that could just be an issue on my end.

Git would also require a .gitconfig file in the containers /etc/gitconfig directory, which i just set to something like this:

[user]
	name = Minecraft Server
	email = server@example.com
	username = minecraft-server
[init]
	defaultBranch = main

which could be easily overridden using volumes if anyone wanted to have their own info in there.

[itzg]

git is already installed, but git-lfs would indeed need to be added here (and same for other distros)

docker-minecraft-server/build/ubuntu/install-packages.sh

Line 18 in c666cf2

git \

Good point about the default gitconfig file. I would have completely missed that.

If you want to PR those changes, then that would work for me.

[cn-ml]

Thanks a lot, previously i always built my own images with

build:
  dockerfile_inline: |-
    FROM itzg/minecraft-server:java17
    RUN apt-get update \
      && apt-get install -y git-lfs \
      && rm -rf /var/lib/apt/lists/*
  tags:
    - itzg/minecraft-server:java17-gitlfs

This makes it a lot easier to update my images.