APT Install - Universal Docker mod

Using this mod you can install any package during starup by providing it through the environment variable APT_PACKAGES. This is then passed into the installation command as such: apt install -y --no-install-recommends ${APT_PACKAGES}.

In any docker container arguments, set an environment variable DOCKER_MODS=linuxserver/mods:universal-apt-install

If adding multiple mods, enter them in an array separated by |, such as DOCKER_MODS=linuxserver/mods:universal-apt-install|linuxserver/mods:universal-stdout-logs

For example, to install rsync, git and nginx add the following lines to your docker compose service:

- DOCKER_MODS=linuxserver/mods:universal-apt-install
- APT_PACKAGES=rsync git nginx