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kubernaut/dockerfiles/alpine.Dockerfile
Ryan Cavicchioni 037964f33b
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2025-06-28 16:00:11 -05:00

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Docker

ARG RUBY_VERSION="3.4.4"
ARG BASE_REGISTRY="docker.io"
FROM ${BASE_REGISTRY}/ruby:${RUBY_VERSION}-alpine AS base
ARG TARGETARCH
ENV RACK_ENV="production" \
BUNDLE_DEPLOYMENT=true \
BUNDLE_PATH="/usr/local/bundle" \
BUNDLE_WITHOUT="development test" \
RUBY_YJIT_ENABLE=true
WORKDIR /kubernaut
RUN \
apk update -q; \
apk add bash jemalloc
RUN \
gem update --system --no-document; \
gem install -N bundler
FROM base AS build
ARG TARGETARCH
RUN \
apk update -q; \
apk add musl-dev gcc make; \
apk add bash jemalloc
COPY Gemfile Gemfile.lock ./
RUN \
bundle install
COPY . .
FROM base
ENV PORT=4567
RUN \
addgroup --system --gid 666 kubernaut; \
adduser --system --uid 666 --ingroup kubernaut --shell /bin/bash --disabled-password kubernaut
COPY --from=build "${BUNDLE_PATH}" "${BUNDLE_PATH}"
COPY --from=build /kubernaut /kubernaut
USER kubernaut:kubernaut
EXPOSE $PORT
ENTRYPOINT [ "/kubernaut/dockerfiles/entrypoint.sh" ]
CMD [ "bundle", "exec", "puma" ]