Docker image for a somewhat beefy ubuntu20.04 installation with my dotfiles repo

Dockerfile

FROM ubuntu:20.04

# don't let tzdata prompt timezone selection, just use UTC
ENV DEBIAN_FRONTEND=noninteractive

# "essential" packages
RUN apt update -y && apt upgrade -y && apt install -y \
    apt-transport-https \
    build-essential \
    ca-certificates \
    coreutils \
    curl \
    git \
    gnupg-agent \
    net-tools \
    software-properties-common \
    vim \
    wget \
    zsh

# "extra" packages
RUN apt install -y \
    ack \
    direnv \
    fd-find \
    htop \
    jq \
    python3 \
    python3-pip \
    screen \
    tmux \
    tree \
    unzip \
    xclip \
    zip

# cleanup, makes the image size smaller
RUN apt autoremove -y && apt clean && rm -rf "/var/lib/apt/lists/*" "/tmp/*" "/var/tmp/*"

# install github.com/jaymody/dotfiles
# printf "o" triggers the overwrite option during the install to overwrite existing dotfiles
# RUNZSH=no removes the interactive oh-my-zsh install
RUN git clone https://github.com/jaymody/dotfiles.git ~/.dotfiles && \
    cd ~/.dotfiles && \
    printf "o" | bash link $HOME/.dotfiles/dotfiles && \
    RUNZSH=no bash zsh/setup.sh && \
    chsh -s $(which zsh)

CMD ["/bin/zsh"]