docker opencv

Dockerfile

@@ -1,16 +1,49 @@
 
-#build stage
-FROM golang:alpine AS builder
-WORKDIR /go/src/app
-COPY . .
-RUN apk add --no-cache git
-RUN go get -d -v ./...
-RUN go install -v ./...
+FROM golang:1.12-alpine3.10 as builder
+
+LABEL maintainer="kaiiak,aNxFi37X@outlook.com"
+
+RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories \
+    && apk add --no-cache ca-certificates \
+    && apk add --no-cache git build-base musl-dev alpine-sdk cmake make gcc g++ libc-dev linux-headers
+
+ARG OPENCV_VERSION="4.0.1"
+ENV OPENCV_VERSION $OPENCV_VERSION
+
+RUN rm -rf /var/cache/apk/
+
+RUN curl -Lo opencv.zip https://github.com/opencv/opencv/archive/${OPENCV_VERSION}.zip && \
+    unzip -q opencv.zip && \
+    curl -Lo opencv_contrib.zip https://github.com/opencv/opencv_contrib/archive/${OPENCV_VERSION}.zip && \
+    unzip -q opencv_contrib.zip && \
+    rm opencv.zip opencv_contrib.zip && \
+    cd opencv-${OPENCV_VERSION} && \
+    mkdir build && cd build && \
+    cmake -D CMAKE_BUILD_TYPE=RELEASE \
+    -D CMAKE_INSTALL_PREFIX=/usr/local \
+    -D OPENCV_EXTRA_MODULES_PATH=../../opencv_contrib-${OPENCV_VERSION}/modules \
+    -D WITH_JASPER=OFF \
+    -D BUILD_DOCS=OFF \
+    -D BUILD_EXAMPLES=OFF \
+    -D BUILD_TESTS=OFF \
+    -D BUILD_PERF_TESTS=OFF \
+    -D BUILD_opencv_java=NO \
+    -D BUILD_opencv_python=NO \
+    -D BUILD_opencv_python2=NO \
+    -D BUILD_opencv_python3=NO \
+    -D OPENCV_GENERATE_PKGCONFIG=ON .. && \
+    make -j4 && \
+    make preinstall && make install && \
+    cd /go && rm -rf opencv*
+
+FROM golang:1.12-alpine3.10
 
 #final stage
-FROM alpine:latest
-RUN apk --no-cache add ca-certificates
-COPY --from=builder /go/bin/app /app
-ENTRYPOINT ./app
-LABEL Name=opencv-docker-golang Version=0.0.1
+FROM golang:1.12-alpine3.10 as opencv
+RUN apk --no-cache add ca-certificates gcc
+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