exclude all of go from runtime image

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.22
+FROM golang:1.22 AS compile
 
 WORKDIR /usr/src/app
 
@@ -7,6 +7,11 @@ WORKDIR /usr/src/app
 # RUN go mod download && go mod verify
 
 COPY . .
-RUN go build -v -o /usr/local/bin/app ./...
+RUN CGO_ENABLED=0 GOOS=linux go build -v -o /usr/local/bin/app ./...
 
-CMD ["app"]
+FROM scratch AS service
+
+WORKDIR /
+COPY --from=compile /usr/local/bin/app .
+
+ENTRYPOINT ["/app"]