41 lines
1.3 KiB
Docker
41 lines
1.3 KiB
Docker
# Use the official Ruby 3.2.0 Alpine image as the base image
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FROM ruby:3.2.0-alpine
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# Install docker/buildx-bin
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COPY --from=docker/buildx-bin /buildx /usr/libexec/docker/cli-plugins/docker-buildx
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# Set the working directory to /kamal
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WORKDIR /kamal
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# Copy the Gemfile, Gemfile.lock into the container
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COPY Gemfile Gemfile.lock kamal.gemspec ./
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# Required in kamal.gemspec
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COPY lib/kamal/version.rb /kamal/lib/kamal/version.rb
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# Install system dependencies
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RUN apk add --no-cache --update build-base git docker openrc openssh-client-default \
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&& rc-update add docker boot \
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&& gem install bundler --version=2.4.3 \
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&& bundle install
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# Copy the rest of our application code into the container.
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# We do this after bundle install, to avoid having to run bundle
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# every time we do small fixes in the source code.
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COPY . .
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# Install the gem locally from the project folder
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RUN gem build kamal.gemspec && \
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gem install ./kamal-*.gem --no-document
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# Set the working directory to /workdir
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WORKDIR /workdir
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# Tell git it's safe to access /workdir/.git even if
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# the directory is owned by a different user
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RUN git config --global --add safe.directory /workdir
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# Set the entrypoint to run the installed binary in /workdir
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# Example: docker run -it -v "$PWD:/workdir" kamal init
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ENTRYPOINT ["kamal"]
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