Merge pull request #886 from pjbgf/fuzz-update

fuzz: Fuzz optimisations

.github/workflows/cifuzz.yaml

@@ -21,12 +21,15 @@ jobs:
       uses: actions/setup-go@v3
       with:
         go-version: 1.18.x
+    - id: go-env
+      run: |
+        echo "::set-output name=go-mod-cache::$(go env GOMODCACHE)"
     - name: Restore Go cache
       uses: actions/cache@v3
       with:
-        path: /home/runner/work/_temp/_github_home/go/pkg/mod
+        path: ${{ steps.go-env.outputs.go-mod-cache }}
         key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
         restore-keys: |
-          ${{ runner.os }}-go-
+          ${{ runner.os }}-go
     - name: Smoke test Fuzzers
       run: make fuzz-smoketest

Makefile

@@ -234,7 +234,7 @@ fuzz-build: $(LIBGIT2)
 	rm -rf $(BUILD_DIR)/fuzz/
 	mkdir -p $(BUILD_DIR)/fuzz/out/
 
-	docker build . --tag local-fuzzing:latest -f tests/fuzz/Dockerfile.builder
+	docker build . --pull --tag local-fuzzing:latest -f tests/fuzz/Dockerfile.builder
 	docker run --rm \
 		-e FUZZING_LANGUAGE=go -e SANITIZER=address \
 		-e CIFUZZ_DEBUG='True' -e OSS_FUZZ_PROJECT_NAME=fluxcd \
@@ -244,6 +244,7 @@ fuzz-build: $(LIBGIT2)
 fuzz-smoketest: fuzz-build
 	docker run --rm \
 		-v "$(BUILD_DIR)/fuzz/out":/out \
+		-v "$(shell go env GOMODCACHE):/root/go/pkg/mod" \
 		-v "$(shell pwd)/tests/fuzz/oss_fuzz_run.sh":/runner.sh \
 		local-fuzzing:latest \
 		bash -c "/runner.sh"

tests/fuzz/Dockerfile.builder

@@ -1,9 +1,4 @@
-FROM golang:1.18 AS go
-
-FROM gcr.io/oss-fuzz-base/base-builder-go
-
-# ensures golang 1.18 to enable go native fuzzing.
-COPY --from=go /usr/local/go /usr/local/
+FROM gcr.io/oss-fuzz-base/base-builder-go-codeintelligencetesting
 
 COPY ./ $GOPATH/src/github.com/fluxcd/source-controller/
 COPY ./tests/fuzz/oss_fuzz_build.sh $SRC/build.sh