From scratch docker image

.drone.yml

@@ -16,7 +16,7 @@ steps:
   commands:
   - go version
   - go get
-  - go build -ldflags '-w'
+  - go build -a -ldflags '-w'
 - name: publish
   image: plugins/docker
   settings:

Dockerfile

@@ -1,6 +1,5 @@
-FROM alpine:latest
-RUN apk update && apk add ca-certificates && rm -rf /var/cache/apk/*
-WORKDIR /opt/deadbeef
-COPY mandelmapper .
+FROM scratch
+COPY mandelmapper /
+COPY ca-certificates.crt /etc/ssl/certs/
 EXPOSE 6161:6161
-ENTRYPOINT ["/opt/deadbeef/mandelmapper"]
+ENTRYPOINT ["/mandelmapper"]