Fix user in build-in-docker

Signed-off-by: Patrik Cyvoct <[email protected]>

Author: Sh4d1

Makefile

@@ -197,7 +197,8 @@ docker-builder:
 
 build-in-docker: clean docker-builder
 	docker run \
-		-e CC=$(CC) -e GOARM=$(GOARM) -e GOARCH=$(ARCH) \
+		-e CC=$(CC) -e GOARM=$(GOARM) -e GOARCH=$(ARCH) -e GOCACHE=/go/.cache/go-build \
+		-u $(shell id -u ${USER}):$(shell id -g ${USER}) \
 		-v `pwd`:/gopath/src/k8s.io/node-problem-detector/ npd-builder:latest bash \
 		-c 'cd /gopath/src/k8s.io/node-problem-detector/ && make build-binaries'