Merge pull request #47 from barney-s/build_fix

fix make build target

Author: k8s-ci-robot

Makefile

@@ -7,4 +7,4 @@ fix-go-generate:
 
 .PHONY: build
 build:
-	go build -o bin/manager cmd/main.go
+	go build -o bin/manager cmd/agent-sandbox-controller/main.go