Updating dockerfile based on gorelease

Author: looterz

Dockerfile

@@ -1,18 +1,6 @@
-FROM golang:alpine
-LABEL mantainer="[email protected]"
-
-ADD *.* /go/src/github.com/looterz/grimd/
-WORKDIR /go/src/github.com/looterz/grimd
-RUN \
-  apk --no-cache add git && \
-  go get -v && \
-  go build -v && \
-  mkdir /app && \
-  cp grimd /app/grimd
-WORKDIR /app
-
+FROM scratch
+COPY grimd /usr/bin/grimd
 EXPOSE 53:53/udp
 EXPOSE 53:53/tcp
 EXPOSE 8080
-
-ENTRYPOINT ["/app/grimd"]
+ENTRYPOINT ["/usr/bin/grimd"]