Docker Devtools for Debian based image. TMUX, Oh My ZSH, Powerlevel10k, Fuzzy finder, htop, etc

Dockerfile.devtools

# ##########################################################
# Dockerfile for Developer Tools.
# Description: This Dockerfile is for adding a devtools stage.
#
# Author information:
# Name: Rahul Dhole
# Email: rdhole95@gmail.com
# GitHub: https://github.com/rahuldhole
#
# Dockerfile description:
# - The devtools stage can be based on top of debian images.
# - It has tmux, OhMyZSH, Powerlevel etc neccessary tools.
# - For more details checkout my blog
#  https://dev.to/rahuldhole/docker-devtools-stage-powerlevel-ohmyzsh-tmux-fuzzy-finder-autocomplete-etc-8g1
# ###########################################################


# TODO: PREQUISITES #########################################
# 1. You need to install below nerd fonts `MesloLGSNF`
# and set it as your terminal font. read my blog to know more.
#
# 2. Add users home directory as volume to save devtools settings
# and terminal history.
# ex. -v devtools-home:/home/<username> 
#############################################################

# IMPORTANT NOTES: ##########################################
# 1. Use `p10k configure` command to reconfigure powerline UI.
#
# 2. You may customize ~/.zshrc ~/.tmux.conf and ~/.p10k.conf
#
# 3. Inside container now you may `su <ADMIN_USER>`
# to do some admin tasks.
#############################################################


# TODO: Update user details
ARG USERNAME=devtools
ARG ADMIN_USER=admin
ARG ADMIN_PASSWORD=admin



#? DEBIAN BASE ##############################################
## TODO: Choose your any other debian base image
FROM debian as base

ARG USERNAME
ARG ADMIN_USER
ARG ADMIN_PASSWORD

## Setting up the work directory
WORKDIR /app

## TODO: .... Write your code here ....

## create a non-root user for security
RUN useradd -m -s /bin/bash $USERNAME




#* DEVTOOLS ################################################
FROM base as devtools
ARG USERNAME
ARG ADMIN_USER
ARG ADMIN_PASSWORD

## Install devtools
RUN apt update && apt-get -y --no-install-recommends install nano zsh curl tmux fontconfig git ca-certificates \
    build-essential # Add build essentials for compiling code

## Add admin user
RUN useradd ${ADMIN_USER} && \
    echo "${ADMIN_USER}:${ADMIN_PASSWORD}" | chpasswd && \
    apt-get update && \
    apt-get -y --no-install-recommends install sudo && \
    echo "${ADMIN_USER} ALL=(ALL) ALL" >> /etc/sudoers

## User settings

### Set default ZSH
RUN chsh -s /bin/zsh $USERNAME

### select User
USER $USERNAME

### Install tmux plugins and theme
RUN git clone https://github.com/tmux-plugins/tpm ~/.tmux/plugins/tpm && \
    touch ~/.tmux.conf && \
    echo 'set -g default-terminal "screen-256color"' >> ~/.tmux.conf && \
    echo '#Toggle status bar by Prefix+I (default ctrl+b+I)' >> ~/.tmux.conf && \
    echo 'bind b run-shell "tmux setw -g status \$(tmux show -g -w status | grep -q off && echo on || echo off)"' >> ~/.tmux.conf && \
    echo 'set -g mouse on' >> ~/.tmux.conf && \
    echo 'set -g @plugin "tmux-plugins/tpm"' >> ~/.tmux.conf && \
    echo 'set -g @plugin "tmux-plugins/tmux-resurrect"' >> ~/.tmux.conf && \
    echo 'set -g @plugin "jimeh/tmux-themepack"' >> ~/.tmux.conf && \
    echo 'set -g @themepack "powerline/double/green"' >> ~/.tmux.conf && \
    echo 'run-shell "~/.tmux/plugins/tpm/tpm"' >> ~/.tmux.conf && \
    ~/.tmux/plugins/tpm/bin/install_plugins

### Install Oh My Zsh
RUN sh -c "$(curl -fsSL https://raw.github.com/ohmyzsh/ohmyzsh/master/tools/install.sh)" "" --unattended

RUN git clone --depth=1 https://github.com/romkatv/powerlevel10k.git \
    ${ZSH_CUSTOM:-$HOME/.oh-my-zsh/custom}/themes/powerlevel10k && \
    git clone https://github.com/zsh-users/zsh-syntax-highlighting.git \
    ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/plugins/zsh-syntax-highlighting && \
    git clone https://github.com/zsh-users/zsh-autosuggestions \
    ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/plugins/zsh-autosuggestions && \
    git clone --depth 1 https://github.com/junegunn/fzf.git ~/.fzf && ~/.fzf/install --all

RUN sed -i -e 's/ZSH_THEME="robbyrussell"/ZSH_THEME="powerlevel10k\/powerlevel10k"/' ~/.zshrc && \
    sed -i -e 's/plugins=(git)/plugins=(git zsh-syntax-highlighting zsh-autosuggestions fzf tmux)/' ~/.zshrc && \
    echo 'export PATH="$PATH:/home/rails/.local/bin"' >> ~/.zshrc && \
    echo 'POWERLEVEL9K_DISABLE_CONFIGURATION_WIZARD=true' >> ~/.zshrc

## Solve nerd font font issue
USER root
RUN apt-get install -y --no-install-recommends locales && \
    locale-gen en_US.UTF-8 && \
    sed -i 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen && \
    locale-gen en_US.UTF-8 && \
    update-locale LANG=en_US.UTF-8

ENV LANG=en_US.UTF-8 \
    LANGUAGE=en_US:en \
    LC_ALL=en_US.UTF-8 \
    TERM=xterm-256color

## Install additional tools
RUN apt-get -y --no-install-recommends install \
    vim \
    less \
    htop \
    wget \
    tree

### Clear cache
RUN rm -rf /var/lib/apt/lists/*

USER $USERNAME
CMD ["/bin/zsh"]





#? DEVELOPMENT ############################################
FROM devtools as development
ARG USERNAME
ENV APP_ENV development
COPY . .
## TODO: .... Write your development layers below ...