add docker build and push

Dockerfile

@@ -0,0 +1,11 @@
+FROM golang:1.19 as builder
+
+WORKDIR /go/src/app
+COPY . .
+RUN make build
+
+FROM scratch
+WORKDIR /
+COPY --from=builder /go/src/app/kbot .
+COPY --from=alpine:latest /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+ENTRYPOINT ["./kbot"]

Makefile

@@ -0,0 +1,29 @@
+APP=$(shell basename $(shell git remote get-url origin))
+REGISTRY=denvasyliev
+VERSION=$(shell git describe --tags --abbrev=0)-$(shell git rev-parse --short HEAD)
+TARGETOS=linux #linux darwin windows
+TARGETARCH=arm64 #amd64 arm64
+
+format:
+	gofmt -s -w ./
+
+lint:
+	golint
+
+test:
+	go test -v
+
+get:
+	go get
+
+build: format get
+	CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build -v -o kbot -ldflags "-X="github.com/den-vasyliev/kbot/cmd.appVersion=${VERSION}
+
+image:
+	docker build . -t ${REGISTRY}/${APP}:${VERSION}-${TARGETARCH}
+
+push:
+	docker push ${REGISTRY}/${APP}:${VERSION}-${TARGETARCH}
+
+clean:
+	rm -rf kbot