Build improvements

.drone.yml

@@ -9,4 +9,4 @@ pipeline:
     commands:
       - go get ./...
       - go test
-      - go build
+      - CC=/usr/bin/musl-gcc go build --ldflags '-linkmode external -extldflags "-static"'

Dockerfile

@@ -1,6 +1,8 @@
 FROM alpine
-EXPOSE 80
-RUN ["mkdir", "/data"]
+RUN addgroup -S app && adduser -S -G app app 
+RUN apk add --update ca-certificates 
 WORKDIR /data
+RUN ["chown", "app:app", "/data"]
 COPY track-me /app/
-ENTRYPOINT ["/app/track-me"]
+USER app
+CMD ["/app/track-me"]