Dockerfile, readme to config

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:alpine
+FROM golang:alpine as builder
 
 WORKDIR /go/go.adphi.net/go-repo
 
@@ -6,3 +6,16 @@ COPY go.mod .
 
 RUN go mod download
 
+COPY . .
+
+RUN go build -o go-repo .
+
+FROM alpine
+
+RUN apk add ca-certificates
+
+COPY --from=builder /go/go.adphi.net/go-repo/go-repo /usr/bin/
+
+EXPOSE 8888
+
+ENTRYPOINT ["/usr/bin/go-repo"]