fix Dockerfile

Dockerfile

@@ -7,19 +7,14 @@ COPY . .
 ARG TARGETOS
 ARG TARGETARCH
 ARG release=
-RUN <<EOR
-  VERSION=$(git rev-parse --short HEAD)
-  BUILDTIME=$(date -u '+%Y-%m-%dT%H:%M:%SZ')
-  RELEASE=$release
-  CGO_ENABLED=1 GOOS=$TARGETOS GOARCH=$TARGETARCH go build -o /bin/ -ldflags="-s -w -X 'github.com/pk910/dora/utils.BuildVersion=${VERSION}' -X 'github.com/pk910/dora/utils.BuildRelease=${RELEASE}' -X 'github.com/pk910/dora/utils.Buildtime=${BUILDTIME}'" ./cmd/*
-EOR
+RUN make build RELEASE=$release GOOS=$TARGETOS GOARCH=$TARGETARCH
 
 # final stage
 FROM debian:stable-slim
 WORKDIR /app
 RUN apt-get update && apt-get install -y --no-install-recommends ca-certificates
 RUN update-ca-certificates
-COPY --from=build-env /bin/* /app
+COPY --from=build-env /src/bin /app
 EXPOSE 8080
 ENTRYPOINT ["./dora-explorer"]
 CMD []