updated CI targets supporting docker build

Makefile

@@ -1,29 +1,31 @@
-PACKAGE_NAME=hugo-mx-gateway
-PRODUCT_VERSION=$$(grep "ProgramVersion.=.*" main.go | cut -d"\"" -f2)-$$(git rev-parse --short HEAD)
-PRODUCT_CLOUD_IMAGE_VERSION=$$(echo $(PRODUCT_VERSION) | sed 's/\.//g' -)
+PACKAGE_NAME=./bin/hugo-mx-gateway
+DOCKER_IMAGE=rchakode/hugo-mx-gateway
 ARCH=$$(uname -m)
-DIST_DIR=$(PACKAGE_NAME)-v$(PRODUCT_VERSION)-$(ARCH)
-GOCMD=GO111MODULE=off go
+GOCMD=GO111MODULE=on go
 GOBUILD=$(GOCMD) build
 GOCLEAN=$(GOCMD) clean
 GOTEST=$(GOCMD) test
-GOGET=$(GOCMD) get -v
-GOVENDOR=govendor
+GOVENDOR=$(GOCMD) mod vendor
+GOIMAGE=golang:1.13.10
 UPX=upx
-PACKER=packer
-PACKER_VERSION=1.5.1
-PACKER_CONF_FILE="./deploy/packer/cloud-image.json"
 
 all: test build
 
-deploy:
-	which gcloud
-	gcloud components install app-engine-go
-	gcloud app deploy --quiet
-
 build:
 	$(GOBUILD) -o $(PACKAGE_NAME) -v
 
+build-docker:
+	docker run --rm -it \
+	-e GO111MODULE=on \
+	-e CGO_ENABLED=0 \
+	-e GOOS=linux \
+	-e GOARCH=amd64 \
+	-v "$(PWD)":/app \
+	-w /app \
+	$(GOIMAGE) \
+	go build -a -tags netgo -ldflags '-w -extldflags "-static"' -o "$(PACKAGE_NAME)" -v
+	docker build -t $(DOCKER_IMAGE):$$(date +%s) .
+
 build-compress: build
 	$(UPX) $(PACKAGE_NAME)
 
@@ -37,12 +39,8 @@ clean:
 
 run:
 	$(GOBUILD) -o $(PACKAGE_NAME) -v ./...
-	./$(PACKAGE_NAME)
+	$(PACKAGE_NAME)
 
 deps: vendor
-
 vendor:
-	$(GO) mod vendor
-
-docker-build:
-	docker run --rm -it -v "$(GOPATH)":/go -w /go/src/bitbucket.org/rsohlich/makepost golang:latest go build -o "$(BINARY_UNIX)" -v
+	$(GOVENDOR)