feat(distroless): Provide distroless container image

.github/workflows/nightly.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        base: [debian, alpine]
+        base: [debian, alpine, distroless]
     env:
       HEDGEDOC_VERSION: master
       HEDGEDOC_IMAGE: quay.io/hedgedoc/hedgedoc-nightly

.github/workflows/release.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        base: [debian, alpine]
+        base: [debian, alpine, distroless]
     env:
       # renovate: datasource=github-tags depName=hedgedoc/hedgedoc versioning=semver
       HEDGEDOC_VERSION: 1.9.3

.github/workflows/test.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        base: [debian, alpine]
+        base: [debian, alpine, distroless]
     env:
       BASE: ${{ matrix.base }} # needed in tests/version.sh
     steps:

distroless/Dockerfile

@@ -0,0 +1,49 @@
+FROM docker.io/library/node:16.14.2-bullseye-slim@sha256:d54981fe891c9e3442ea05cb668bc8a2a3ee38609ecce52c7b5a609fadc6f64b AS base
+
+FROM base AS builder
+
+
+RUN apt-get update && apt-get install --no-install-recommends -y git jq ca-certificates python-is-python3 build-essential
+
+
+# Build arguments to change source url, branch or tag
+ARG CODIMD_REPOSITORY
+ARG HEDGEDOC_REPOSITORY=https://github.com/hedgedoc/hedgedoc.git
+ARG VERSION=master
+RUN if [ -n "${CODIMD_REPOSITORY}" ]; then echo "CODIMD_REPOSITORY is deprecated. Please use HEDGEDOC_REPOSITORY instead" && exit 1; fi
+
+# Clone the source and remove git repository but keep the HEAD file
+RUN git clone --depth 1 --branch "$VERSION" "$HEDGEDOC_REPOSITORY" /hedgedoc
+RUN git -C /hedgedoc log --pretty=format:'%ad %h %d' --abbrev-commit --date=short -1
+RUN git -C /hedgedoc rev-parse HEAD > /tmp/gitref
+RUN rm -rf /hedgedoc/.git/*
+RUN mv /tmp/gitref /hedgedoc/.git/HEAD
+RUN jq ".repository.url = \"${HEDGEDOC_REPOSITORY}\"" /hedgedoc/package.json > /hedgedoc/package.new.json
+RUN mv /hedgedoc/package.new.json /hedgedoc/package.json
+
+
+# Install app dependencies and build
+WORKDIR /hedgedoc
+RUN yarn install --production=false --frozen-lockfile
+RUN yarn run build
+RUN yarn install --production=true --frozen-lockfile
+RUN rm -f /hedgedoc/config.json
+RUN ln -s /files/config.json /hedgedoc/config.json
+COPY --chown=$UID /resources/healthcheck.mjs /hedgedoc/healthcheck.mjs
+
+# Use distroless image
+FROM gcr.io/distroless/nodejs:16@sha256:2b0fe69900014a74bc85fd4588e86b90139777a8fa7e2feea1f14447ea82e651
+
+ARG UID=10000
+ENV NODE_ENV=production
+ENV UPLOADS_MODE=0700
+
+COPY --chown=$UID --from=builder /hedgedoc /hedgedoc
+COPY ["resources/config.json", "/files/"]
+
+HEALTHCHECK --interval=5s CMD node healthcheck.mjs
+WORKDIR /hedgedoc
+EXPOSE 3000
+USER $UID
+
+CMD ["app.js"]