8c5e7121ef
Quoting the Docker documentation [1]: > Always combine RUN apt-get update with apt-get install in the same RUN > statement. > (...) > Using apt-get update alone in a RUN statement causes caching issues > and subsequent apt-get install instructions fail. > (...) > Docker sees the initial and modified instructions as identical and > reuses the cache from previous steps. As a result the apt-get update > is not executed because the build uses the cached version. Because the > apt-get update is not run, your build can potentially get an outdated > version of the curl and nginx packages. > > Using RUN apt-get update && apt-get install -y ensures your Dockerfile > installs the latest package versions with no further coding or manual > intervention. [1] https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#run
41 lines
1.6 KiB
Docker
41 lines
1.6 KiB
Docker
FROM ruby:2.7.4-buster
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ENV DEBIAN_FRONTEND noninteractive
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# Install essential Linux packages
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RUN apt-get update -qq && apt-get install -y build-essential libpq-dev postgresql-client nodejs imagemagick sudo libxss1 libappindicator1 libindicator7 unzip memcached cmake pkg-config shared-mime-info
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# Install Chromium for E2E integration tests
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RUN apt-get update -qq && apt-get install -y chromium
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# Files created inside the container repect the ownership
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RUN adduser --shell /bin/bash --disabled-password --gecos "" consul \
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&& adduser consul sudo \
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&& echo '%sudo ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers
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RUN echo 'Defaults secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/bundle/bin"' > /etc/sudoers.d/secure_path
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RUN chmod 0440 /etc/sudoers.d/secure_path
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COPY scripts/entrypoint.sh /usr/local/bin/entrypoint.sh
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# Define where our application will live inside the image
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ENV RAILS_ROOT /var/www/consul
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# Create application home. App server will need the pids dir so just create everything in one shot
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RUN mkdir -p $RAILS_ROOT/tmp/pids
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# Set our working directory inside the image
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WORKDIR $RAILS_ROOT
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# Use the Gemfiles as Docker cache markers. Always bundle before copying app src.
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# (the src likely changed and we don't want to invalidate Docker's cache too early)
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COPY Gemfile* ./
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RUN bundle install
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# Copy the Rails application into place
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COPY . .
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# Define the script we want run once the container boots
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# Use the "exec" form of CMD so our script shuts down gracefully on SIGTERM (i.e. `docker stop`)
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# CMD [ "config/containers/app_cmd.sh" ]
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CMD ["bundle", "exec", "rails", "server", "-b", "0.0.0.0"]
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