Initial commit

Dockerfile.deps

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+# syntax=docker/dockerfile:1.4
+# Heavy layer: Ruby gems + system packages. Rebuild only when Gemfile.lock changes.
+#   docker build -f Dockerfile.deps -t custom/dena-deps:1 .
+FROM ruby:2.7.8
+
+ARG UID=1000
+ARG GID=1000
+ENV KAIGARA_VERSION=0.1.9
+
+ENV APP_HOME=/home/app \
+    BUNDLE_PATH=/opt/vendor/bundle \
+    TZ=UTC
+
+RUN groupadd -r --gid ${GID} app \
+ && useradd --system --create-home --home ${APP_HOME} --shell /sbin/nologin --no-log-init \
+      --gid ${GID} --uid ${UID} app
+
+WORKDIR $APP_HOME
+
+RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
+    --mount=type=cache,target=/var/lib/apt,sharing=locked \
+    apt-get update \
+ && apt-get install -y --no-install-recommends default-libmysqlclient-dev git curl vim \
+ && rm -rf /var/lib/apt/lists/* \
+ && gem install bundler:2.2.16 \
+ && curl -fsSL -o /usr/bin/kaigara "https://github.com/openware/kaigara/releases/download/${KAIGARA_VERSION}/kaigara" \
+ && chmod +x /usr/bin/kaigara
+
+COPY Gemfile Gemfile.lock ./
+
+RUN mkdir -p ${BUNDLE_PATH} \
+ && chown -R app:app /opt/vendor ${APP_HOME} \
+ && su app -s /bin/bash -c "bundle config set --local path ${BUNDLE_PATH} \
+ && bundle install --jobs $(nproc)"
+
+USER app
+ENV PATH="${BUNDLE_PATH}/bin:${PATH}"