build: don't run licenses-report locally

Dockerfile

@@ -9,6 +9,7 @@ ARG TARGETOS TARGETARCH
 ARG NAME
 ARG VERSION
 ARG REVISION
+ARG SKIP_LICENSES_REPORT=false
 
 WORKDIR /app
 

Makefile

@@ -11,10 +11,16 @@ help:
 ## licenses-report: generate a report of all licenses
 .PHONY: licenses-report
 licenses-report:
+ifeq ($(SKIP_LICENSES_REPORT), true)
+	@echo "Skipping licenses report"
+	rm -rf ./licenses && mkdir -p ./licenses
+else
+	@echo "Generating licenses report"
 	rm -rf ./licenses
 	go run github.com/google/[email protected] save . --save_path ./licenses
 	go run github.com/google/[email protected] report . > ./licenses/THIRD-PARTY.csv
 	cp LICENSE ./licenses/LICENSE.txt
+endif
 
 # ==================================================================================== #
 # QUALITY CONTROL
@@ -66,4 +72,4 @@ run: tidy build
 ## container: build the container image
 .PHONY: container
 container:
-	docker build -t extension-prometheus:latest .
+	docker build --build-arg SKIP_LICENSES_REPORT="true" -t extension-prometheus:latest .