Dockerfile

# Load the Docker image.
FROM ruby:3.0.3-alpine3.13

# Define environment variables.
ENV LANG C.UTF-8
ENV PS1 '▶ '
ENV RAILS_ROOT /rails-7-hotwire
ENV BUNDLE_PATH /usr/local/bundle

# Install Packages.
RUN apk update && apk upgrade && apk add --update --no-cache \
  build-base \
  curl-dev \
  linux-headers \
  libxml2-dev \
  libxslt-dev \
  postgresql-dev \
  ruby-dev \
  yaml-dev \
  graphviz \
  zlib-dev \
  bash \
  git \
  openssh \
  postgresql \
  ruby-json \
  tzdata \
  vim \
  nodejs \
  yaml \
  curl \
  imagemagick \
  yarn --repository="http://dl-cdn.alpinelinux.org/alpine/edge/community" \
  libc6-compat && ln -s /lib/libc.musl-x86_64.so.1 /lib/ld-linux-x86-64.so.2

# Set up a work directory.
RUN mkdir $RAILS_ROOT
WORKDIR $RAILS_ROOT

# Add Puma SSL certificate files.
COPY ./keys/ /home/root/.ssh/

# Install Gems
ADD Gemfile .
ADD Gemfile.lock .
RUN bundle install -j4

# Install Yarns
COPY package.json .
COPY yarn.lock .
RUN yarn

# Copy the source code.
ADD . $RAILS_ROOT