feat: update to Debian Trixie

dockerfiles/trixie.Dockerfile

@@ -0,0 +1,50 @@
+ARG RUBY_VERSION="3.4.4"
+ARG BASE_REGISTRY="docker.io"
+ARG DEBIAN_VERSION="trixie"
+
+FROM ${BASE_REGISTRY}/ruby:${RUBY_VERSION}-slim-${DEBIAN_VERSION} AS base
+
+ENV RACK_ENV="production" \
+  BUNDLE_DEPLOYMENT=true \
+  BUNDLE_PATH="/usr/local/bundle" \
+  BUNDLE_WITHOUT="development test" \
+  RUBY_YJIT_ENABLE=true
+
+WORKDIR /kubernaut
+
+RUN \
+  apt-get update -qq && \
+  apt-get install --yes --no-install-recommends libjemalloc2 && \
+  rm -rf /var/lib/apt/lists /var/cache/apt/archives
+
+FROM base AS build
+
+RUN \
+  apt-get update -qq && \
+  apt-get install --yes --no-install-recommends build-essential && \
+  rm -rf /var/lib/apt/lists /var/cache/apt/archives
+
+COPY Gemfile Gemfile.lock ./
+
+RUN \
+  bundle install && \
+  rm -rf ~/.bundle/ "${BUNDLE_PATH}"/ruby/*/cache "${BUNDLE_PATH}"/ruby/*/bundler/gems/*/.git
+
+COPY . .
+
+FROM base
+
+ENV PORT=4567
+
+RUN \
+  groupadd --system --gid 666 kubernaut && \
+  useradd --system --uid 666 --gid kubernaut --create-home --shell /bin/bash kubernaut
+
+COPY --from=build "${BUNDLE_PATH}" "${BUNDLE_PATH}"
+COPY --from=build /kubernaut /kubernaut
+
+USER kubernaut:kubernaut
+
+EXPOSE $PORT
+ENTRYPOINT [ "/kubernaut/dockerfiles/entrypoint.sh" ]
+CMD [ "bundle", "exec", "puma" ]