Adding makefile

Makefile

@@ -0,0 +1,21 @@
+BINDIR=bin
+BIN_WORKER=worker
+BIN_SANDBOX=sandbox
+
+binary: clean
+	if [ -z "$$GOPATH" ]; then \
+	  echo "GOPATH is not set"; \
+	  exit 1; \
+	fi
+
+	@mkdir -p ./$(BINDIR)
+	GOOS=linux GOARCH=amd64 go build -v \
+	    -o $(BINDIR)/$(BIN_WORKER) ./main/worker
+
+	GOOS=linux GOARCH=amd64 go build \
+		-o $(BINDIR)/$(BIN_SANDBOX) ./main/sandbox
+
+clean:
+	rm -rf "$(BINDIR)"
+
+.PHONY: clean binary