Reordered commands in Dockerfile for caching usage

Dockerfile

@@ -4,7 +4,9 @@ RUN apk add --no-cache build-base
 
 WORKDIR /app
 
-COPY . .
+COPY Makefile .
+COPY src src/
+COPY include include/
 
 RUN make
 
@@ -12,8 +14,8 @@ FROM alpine
 
 WORKDIR /srv
 
-COPY --from=builder /app .
+COPY static static/
 
-RUN apk add --no-cache gcompat
+COPY --from=builder /app/build/server .
 
-CMD ["build/server", "5000"]
+CMD ["./server", "5000"]