disable cgo and use alpine image (#14)

* disable cgo and use alpine image

* copy everything to builder image to avoid maintenance overhead

Dockerfile

@@ -3,18 +3,15 @@ LABEL maintainer="SkynetLabs <[email protected]>"
 
 WORKDIR /root
 
-COPY api api
-COPY clamav clamav
-COPY database database
-COPY scanner scanner
-COPY scanner scanner
-COPY go.mod go.sum main.go Makefile ./
+ENV CGO_ENABLED=0
+
+COPY . .
 
 RUN go mod download && make release
 
-FROM golang:1.17.7-alpine
+FROM alpine:3.15.0
 LABEL maintainer="SkynetLabs <[email protected]>"
 
-COPY --from=builder /go/bin/malware-scanner /go/bin/malware-scanner
+COPY --from=builder /go/bin/malware-scanner /usr/bin/malware-scanner
 
 ENTRYPOINT ["malware-scanner"]