Ubuntu + Ruby + NodeJS

This is a small, Ubuntu-based docker image with the latest ruby, the latest LTS nodejs version, and yarn. Mostly built for our own purposes at Capital Factory, but probably useful for more folks running Rails applications with Webpack.

Example Dockerfile

Here is an example Dockerfile using this docker image, from one of my codebases:

FROM fredoliveira/ubuntu-ruby-node:latest

RUN apt update && \
    apt install -y \
    git \
    build-essential \
    postgresql \
    libpq-dev \
    mupdf \
    libmupdf-dev \
    mupdf-tools \
    libvips-dev \
    libvips-tools \
    libvips42 \
    libcurl4 \
    inotify-tools

# Install bundler
RUN gem install bundler

# Create a directory for our application
# and set it as the working directory
WORKDIR /pitch

# Install the necessary gems
COPY Gemfile* ./
RUN bundle install

# Install yarn packages
COPY package.json yarn.lock ./
RUN yarn install --frozen-lockfile

# Now that dependencies are installed, change to app folder and copy other files
COPY . .

# Compile assets
ENV RAILS_MASTER_KEY=$RAILS_MASTER_KEY
ENV RAILS_ENV=$RAILS_ENV
RUN rails assets:precompile

EXPOSE 3000
CMD ["rails", "server", "-b", "0.0.0.0"]

Building a new version

Set up a new Docker builder for multiple platform support:

docker buildx create --name mybuilder --bootstrap --use

Build and push a new version:

docker buildx build --platform linux/amd64,linux/arm64 -t fredoliveira/ubuntu-ruby-node:latest --push .