I keep this in my snippet manager to be pasted into a kubernetes pod I want to have the tools I'm used to:

    apt-get update; apt-get install -y tmux git ncdu psmisc iproute2 net-tools curl zsh vim; curl -Ls install.ohmyz.sh | sh; chsh -s $(which zsh); exec zsh

It's not automatic but it only takes a second for me to find it and about 10-15s to run.