AI in docker, inspired by https://www.bekk.no/fag/artikkel/putt-aien-i-en-sandkasse--100223

ai.zsh

# usage: ai [name [folder]]
#   ai               - fzf pick from all docker-ai-* containers
#   ai <name>        - create/attach to docker-ai-<name>, mounts pwd
#   ai <name> <dir>  - create/attach to docker-ai-<name>, mounts dir
ai() {
  # specified dir or current
  local dir="${2:-$(pwd)}"

  # stuff to mount in the container
  local -a volumes=(
    -v "${dir}:${dir}" -w "${dir}"
    -v "$HOME/.m2:/home/batman/.m2"
    -v "$HOME/.gradle:/home/batman/.gradle"
    -v "$HOME/.gitconfig.docker-ai:/home/batman/.gitconfig.private:ro"
    -v "$HOME/.local/share/opencode:/home/batman/.local/share/opencode"
    -v "$HOME/.local/state/opencode:/home/batman/.local/state/opencode"
    -v "$HOME/.config/opencode/opencode.json:/home/batman/.config/opencode/opencode.json:ro"
  )

  # named container: create or attach
  if [[ -n "$1" ]]; then
    local container="docker-ai-$1"
    if docker ps --format '{{.Names}}' | grep -qx "$container"; then
      docker exec -it "$container" tmux attach
    elif docker ps -a --format '{{.Names}}' | grep -qx "$container"; then
      docker start "$container" && docker exec -it "$container" tmux attach
    else
      echo "Starting $container in $dir"
      docker run -dit --name "$container" "${volumes[@]}" docker-ai bash -c "exec tmux"
      sleep 0.5
      docker exec -it "$container" tmux attach
    fi
    return
  fi

  # no args: pick from all docker-ai-* containers with fzf
  local selection
  selection=$(docker ps -a --format '{{.Names}}\t{{.Status}}' \
    | grep '^docker-ai-' \
    | fzf --height=40% --reverse --header="container  status") || return 0

  local container
  container=$(echo "$selection" | awk '{print $1}')
  docker start "$container" 2>/dev/null
  docker exec -it "$container" tmux attach
}

Dockerfile

# dockerfile ai in isolated environments
# usage:
#   docker build -t docker-ai . --no-cache
FROM ubuntu:24.04

# no prompts during installasjon
ENV DEBIAN_FRONTEND=noninteractive

# c-x e in opencode
ENV EDITOR=nvim
ENV VISUAL=nvim
ENV GIT_EDITOR=nvim

# upgrade and install
RUN apt-get update && apt-get install -y --no-install-recommends \
    btop \
    curl \
    fd-find \
    git \
    gpg \
    jq \
    neovim \
    ripgrep \
    zoxide \
    tmux \
    tree \
    unzip \
    vim \
    wget \
    ca-certificates \
    openjdk-17-jdk \
    openjdk-21-jdk \
    locales \                       
    && locale-gen nb_NO.UTF-8 \
    && ln -s /usr/bin/fdfind /usr/local/bin/fd \
    && mkdir -p /etc/apt/keyrings && \
      curl -fsSL https://raw.githubusercontent.com/eza-community/eza/main/deb.asc \
        | gpg --dearmor -o /etc/apt/keyrings/gierens.gpg && \
      echo "deb [signed-by=/etc/apt/keyrings/gierens.gpg] http://deb.gierens.de stable main" \
        > /etc/apt/sources.list.d/gierens.list && \
    apt-get update && apt-get install -y eza \
    && rm -rf /var/lib/apt/lists/*

# java
ENV JAVA_HOME=/usr/lib/jvm/java-21-openjdk-arm64
ENV PATH="$JAVA_HOME/bin:$PATH"

# norsk
ENV LANG=nb_NO.UTF-8
ENV LANGUAGE=nb_NO:nb
ENV LC_ALL=nb_NO.UTF-8

# tmux, and markdown rendering in opencode
ENV TERM=xterm-256color
ENV COLORTERM=truecolor

# non root user
RUN useradd --create-home --shell /bin/bash batman
USER batman
WORKDIR /home/batman

# conf
RUN git clone https://github.com/torgeir/dotfiles && \
    ln -s dotfiles/fzfrc .fzfrc && \
    ln -s dotfiles/zshrc .zshrc && \
    ln -s dotfiles/vimrc .vimrc && \
    ln -s dotfiles/inputrc .inputrc && \
    ln -s dotfiles/tmux.conf .tmux.conf && \
    ln -s dotfiles/gitconfig .gitconfig && \
    echo 'source $HOME/dotfiles/source/aliases' >> /home/batman/.bashrc

# batman ownership of folders we later mount using -v
RUN mkdir -p /home/batman/.local/state && \
    mkdir -p /home/batman/.local/share && \
    mkdir -p /home/batman/.config && \
    mkdir -p /home/batman/.m2 && \
    mkdir -p /home/batman/.gradle

# ai
RUN curl -fsSL https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.4/install.sh | bash \
 && export NVM_DIR=/home/batman/.nvm \
 && . "$NVM_DIR/nvm.sh" \
 && nvm install 24
RUN curl -fsSL https://bun.com/install | bash
RUN curl -fsSL https://opencode.ai/install | bash
RUN mkdir -p /home/batman/.config/opencode

# startup
CMD ["/bin/bash"]