add Dockerfile for production env

Author: Euler-B

Dockerfile

@@ -0,0 +1,30 @@
+ARG GO_VERSION=1.19.1
+
+FROM golang:${GO_VERSION}-alpine AS builder 
+
+RUN go env -w GOPROXY=direct
+RUN apk add --no-cache git 
+RUN apk --no-cache add ca-certificates && update-ca-certificates
+
+WORKDIR /src
+
+COPY ./go.mod ./go.sum  ./
+RUN go mod download 
+
+COPY ./ ./ 
+
+RUN CGO_ENABLED=0 go build \
+    -installsuffix 'static' \
+    -o /API-REST_GO
+
+FROM scratch AS runner 
+
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+
+COPY .env ./
+
+COPY --from=builder /API-REST_GO /API-REST_GO
+
+EXPOSE 5050
+
+ENTRYPOINT ["/API-REST_GO"]