Initial revisin of healthchecker, inspired by HAProxy

Makefile

@@ -0,0 +1,30 @@
+BINARY     := healthchecker
+MODULE     := git.ipng.ch/ipng/vpp-maglev
+PROTO_DIR  := proto
+PROTO_FILE := $(PROTO_DIR)/healthchecker.proto
+GEN_FILES  := internal/grpcapi/healthchecker.pb.go internal/grpcapi/healthchecker_grpc.pb.go
+
+.PHONY: all build test proto lint clean
+
+all: build
+
+build: $(GEN_FILES)
+	go build -o bin/$(BINARY) ./cmd/$(BINARY)/
+
+test: $(GEN_FILES)
+	go test ./...
+
+proto: $(GEN_FILES)
+
+$(GEN_FILES): $(PROTO_FILE)
+	protoc \
+		--go_out=. --go_opt=module=$(MODULE) \
+		--go-grpc_out=. --go-grpc_opt=module=$(MODULE) \
+		$(PROTO_FILE)
+
+lint:
+	golangci-lint run ./...
+
+clean:
+	rm -f bin/$(BINARY)
+	rm -f $(GEN_FILES)