dockerfile fixed (#3)

Author: Gasoid

Dockerfile

@@ -4,13 +4,13 @@ ADD go.mod /code/
 ADD go.sum /code/
 RUN go mod download
 ADD ./ /code/
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o /code/bot .
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o /tmp/bot .
 
 FROM alpine:3.6
 EXPOSE 8080
 WORKDIR /root/
 RUN apk --no-cache --update add bash curl less jq openssl
-COPY --from=builder /code/bot /root/
+COPY --from=builder /tmp/bot /root/
 HEALTHCHECK --interval=10s --timeout=3s \
   CMD curl -f http://localhost:8080/health || exit 1
 CMD exec /root/bot