rm cache

Dockerfile.buster

@@ -39,14 +39,11 @@ RUN curl -Lo opencv.zip https://github.com/opencv/opencv/archive/${OPENCV_VERSIO
     -D OPENCV_GENERATE_PKGCONFIG=ON .. && \
     make -j $(nproc --all) && \
     make preinstall && make install && ldconfig && \
-            cd / && rm -rf opencv*
+    cd / && rm -rf opencv* && \
+    rm -rf /var/lib/apt/lists/*
 
-# Final stage
-FROM golang:buster as opencv
-RUN apk --no-cache add ca-certificates build-base
-COPY --from=builder /usr/local/lib64 /usr/local/lib64
-LABEL maintainer="kaiiak,aNxFi37X@outlook.com"
 
 ENV PKG_CONFIG_PATH=/usr/local/lib64/pkgconfig:$PKG_CONFIG_PATH
 ENV LD_LIBRARY_PATH=/usr/local/lib64:$LD_LIBRARY_PATH
 
+CMD ["go version"]