Improve speed of Golang-related Makefile targets when running on macOS (

#3527)

* Improve speed of all Golang-related Makefile targets when running on macOS.

* Clean up remaining references to .cache and .pkg directories.

I've left references to both directories in DONT_FIND and
clean-white-noise so that the existing behaviour is maintained for
anyone who has the directories present in their working copy already.

Makefile

@@ -215,17 +215,14 @@ GO_FLAGS := -ldflags "\
 
 ifeq ($(BUILD_IN_CONTAINER),true)
 
-GOVOLUMES=	-v $(shell pwd)/.cache:/go/cache:$(CONTAINER_MOUNT_OPTIONS) \
-			-v $(shell pwd)/.pkg:/go/pkg:$(CONTAINER_MOUNT_OPTIONS) \
+GOVOLUMES=	-v mimir-go-cache:/go/cache \
+			-v mimir-go-pkg:/go/pkg \
 			-v $(shell pwd):/go/src/github.com/grafana/mimir:$(CONTAINER_MOUNT_OPTIONS)
 
 # Mount local ssh credentials to be able to clone private repos when doing `mod-check`
 SSHVOLUME=  -v ~/.ssh/:/root/.ssh:$(CONTAINER_MOUNT_OPTIONS)
 
 exes $(EXES) protos $(PROTO_GOS) lint lint-packaging-scripts test test-with-race cover shell mod-check check-protos doc format dist build-mixin format-mixin check-mixin-tests license check-license conftest-fmt check-conftest-fmt conftest-test conftest-verify check-helm-tests build-helm-tests: fetch-build-image
-	@mkdir -p $(shell pwd)/.pkg
-	@mkdir -p $(shell pwd)/.cache
-	@echo
 	@echo ">>>> Entering build container: $@"
 	$(SUDO) time docker run --rm $(TTY) -i $(SSHVOLUME) $(GOVOLUMES) $(BUILD_IMAGE) GOOS=$(GOOS) GOARCH=$(GOARCH) BINARY_SUFFIX=$(BINARY_SUFFIX) $@;
 
@@ -463,7 +460,8 @@ format-makefiles: $(MAKE_FILES)
 
 clean: ## Cleanup the docker images, object files and executables.
 	$(SUDO) docker rmi $(IMAGE_NAMES) >/dev/null 2>&1 || true
-	rm -rf -- $(UPTODATE_FILES) $(EXES) .cache dist
+	$(SUDO) docker volume rm -f mimir-go-pkg mimir-go-cache
+	rm -rf -- $(UPTODATE_FILES) $(EXES) dist
 	# Remove executables built for multiarch images.
 	find . -type f -name '*_linux_arm64' -perm +u+x -exec rm {} \;
 	find . -type f -name '*_linux_amd64' -perm +u+x -exec rm {} \;
@@ -497,7 +495,7 @@ reference-help: cmd/mimir/mimir
 	@(go run ./tools/config-inspector || true) > cmd/mimir/config-descriptor.json
 
 clean-white-noise: ## Clean the white noise in the markdown files.
-	@find . -path ./.pkg -prune -o -path "*/vendor/*" -prune -or -type f -name "*.md" -print | \
+	@find . -path ./.pkg -prune -o -path ./.cache -prune -o -path "*/vendor/*" -prune -or -type f -name "*.md" -print | \
 	SED_BIN="$(SED)" xargs ./tools/cleanup-white-noise.sh
 
 check-white-noise: ## Check the white noise in the markdown files.
@@ -592,8 +590,6 @@ ifeq ($(PACKAGE_IN_CONTAINER), true)
 
 .PHONY: packages
 packages: dist packaging/fpm/$(UPTODATE)
-	@mkdir -p $(shell pwd)/.pkg
-	@mkdir -p $(shell pwd)/.cache
 	@echo ">>>> Entering build container: $@"
 	$(SUDO) time docker run --rm $(TTY) \
 		-v  $(shell pwd):/go/src/github.com/grafana/mimir:$(CONTAINER_MOUNT_OPTIONS) \