Files
kamal/Dockerfile
Michael Smart f01238112e Update nokogiri to 1.18.3
See: https://github.com/sparklemotion/nokogiri/releases/tag/v1.18.0

- required for ruby 3.4 compatibility
- add more platforms to lockfile to support
  docker build process, due to changes
  in the nokogiri native gem setup where
  -musl and -gnu linux platforms are no longer
  interchangeable
- bundler >= 2.5.6 required according to Nokogiri release
  notes, so updated to current latest version (2.6.5)
2025-02-21 13:23:08 +01:00

40 lines
1.2 KiB
Docker

FROM ruby:3.4-alpine
# Install docker/buildx-bin
COPY --from=docker/buildx-bin /buildx /usr/libexec/docker/cli-plugins/docker-buildx
# Set the working directory to /kamal
WORKDIR /kamal
# Copy the Gemfile, Gemfile.lock into the container
COPY Gemfile Gemfile.lock kamal.gemspec ./
# Required in kamal.gemspec
COPY lib/kamal/version.rb /kamal/lib/kamal/version.rb
# Install system dependencies
RUN apk add --no-cache build-base git docker openrc openssh-client-default yaml-dev \
&& rc-update add docker boot \
&& gem install bundler --version=2.6.5 \
&& bundle install
# Copy the rest of our application code into the container.
# We do this after bundle install, to avoid having to run bundle
# every time we do small fixes in the source code.
COPY . .
# Install the gem locally from the project folder
RUN gem build kamal.gemspec && \
gem install ./kamal-*.gem --no-document
# Set the working directory to /workdir
WORKDIR /workdir
# Tell git it's safe to access /workdir/.git even if
# the directory is owned by a different user
RUN git config --global --add safe.directory '*'
# Set the entrypoint to run the installed binary in /workdir
# Example: docker run -it -v "$PWD:/workdir" kamal init
ENTRYPOINT ["kamal"]