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nerdinand/Dockerfile

Created January 29, 2022 22:32
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  1. nerdinand created this gist Jan 29, 2022.
    20 changes: 20 additions & 0 deletions Dockerfile
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    FROM ruby:3.1

    # throw errors if Gemfile has been modified since Gemfile.lock
    RUN bundle config --global frozen 1

    WORKDIR /usr/src/app

    COPY Gemfile Gemfile.lock ./
    RUN bundle install

    # Add a script to be executed every time the container starts.
    COPY entrypoint.sh /usr/bin/
    RUN chmod +x /usr/bin/entrypoint.sh
    ENTRYPOINT ["entrypoint.sh"]

    COPY . .

    EXPOSE 3000

    CMD ["bundle", "exec", "rails", "server", "-b", "0.0.0.0"]
    9 changes: 9 additions & 0 deletions entrypoint.sh
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    #!/bin/bash
    set -e

    # Remove a potentially pre-existing server.pid for Rails.
    rm -f /myapp/tmp/pids/server.pid

    # Then exec the container's main process (what's set as CMD in the Dockerfile).
    exec "$@"

    3 changes: 3 additions & 0 deletions podman-build.sh
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    #!/bin/bash

    podman build -t rails7:latest .
    3 changes: 3 additions & 0 deletions podman-run.sh
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    #!/bin/bash

    podman run -p 3000:3000 rails7:latest