feat(shared/statsd-exporter): Build from source using Patchable

Author: NickLarsenNZ

shared/statsd-exporter/Dockerfile

@@ -36,22 +36,30 @@ EOF
 COPY --from=golang-image /usr/local/go/ /usr/local/go/
 ENV PATH="/usr/local/go/bin:${PATH}"
 
+COPY --chown=${STACKABLE_USER_UID}:0 shared/statsd-exporter/stackable/patches/patchable.toml /statsd_exporter/src/shared/statsd-exporter/stackable/patches/patchable.toml
+COPY --chown=${STACKABLE_USER_UID}:0 shared/statsd-exporter/stackable/patches/${PRODUCT_VERSION} /statsd_exporter/src/shared/statsd-exporter/stackable/patches/${PRODUCT_VERSION}
+
 RUN --mount=type=cache,id=go-statsd-exporter,uid=${STACKABLE_USER_UID},target=/go_cache <<EOF
 export GOPATH=/go_cache
 go install "github.com/CycloneDX/cyclonedx-gomod/cmd/cyclonedx-gomod@v${CYCLONEDX_GOMOD_VERSION}"
 
-curl "https://repo.stackable.tech/repository/packages/statsd_exporter/statsd_exporter-${PRODUCT_VERSION}.src.tar.gz" | tar -xzC .
 (
-  cd "statsd_exporter-${PRODUCT_VERSION}" || exit
+  cd "$(/stackable/patchable --images-repo-root=src checkout shared/statsd-exporter ${PRODUCT_VERSION})"
+
+  # Create snapshot of the source code including custom patches
+  tar -czf /statsd_exporter/statsd-exporter-${PRODUCT_VERSION}-src.tar.gz .
 
   # Unfortunately, we need to create a dummy Git repository to allow cyclonedx-gomod to determine the version of statsd_exporter
+  rm .git
   git init
   git config user.email "fake.commiter@stackable.tech"
   git config user.name "Fake commiter"
   git commit --allow-empty --message "Fake commit, so that we can create a tag"
   git tag "v${PRODUCT_VERSION}"
-  go build -o ../statsd_exporter
-  $GOPATH/bin/cyclonedx-gomod app -json -output-version 1.5 -output ../statsd_exporter-${PRODUCT_VERSION}.cdx.json -packages -files
+  go build -o /statsd_exporter/statsd_exporter
+  $GOPATH/bin/cyclonedx-gomod app -json -output-version 1.5 -output /statsd_exporter/statsd_exporter-${PRODUCT_VERSION}.cdx.json -packages -files
 )
 rm -rf "statsd_exporter-${PRODUCT_VERSION}"
+# set correct groups
+chmod -R g=u /statsd_exporter/
 EOF

shared/statsd-exporter/README.md

@@ -5,3 +5,21 @@ This is the Docker image that builds statsd_exporter.
 This image does _not_ need to be built manually.
 It will be built automatically if specified as a dependency in our `boil-config.toml` file.
 Which will then be transformed to a dependency in a Docker `buildx bake` file.
+
+## Updating
+
+This image uses patchable for applying patch sets before building from source.
+Our mirror can be found here:
+
+To update:
+
+> [!CAUTION]
+> Check the changes since the last version, eg:
+> <https://github.com/prometheus/statsd_exporter/compare/v0.29.0...v0.30.0>
+
+```shell
+STATSD_VERSION=0.29.0
+cargo patchable init version "shared/statsd-exporter" "$STATSD_VERSION" --base="v$STATSD_VERSION" --mirror
+```
+
+Apply any necessary patches (see previous version's patch set).