Dockerfile-alpine-text.template

# Image
FROM %%IMAGE%%

# Environment variables
ENV OPENCV_VERSION=%%OPENCVVERSION%%

# Install needed packages
RUN set -ex \
&& echo "@edge http://dl-cdn.alpinelinux.org/alpine/edge/main" >> /etc/apk/repositories \
&& echo "@community http://dl-cdn.alpinelinux.org/alpine/edge/community" >> /etc/apk/repositories \
&& echo "@testing http://dl-cdn.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories \
&& apk add --no-cache \
  build-base cmake \
  wget unzip \
  hdf5 hdf5-dev \
  protobuf protobuf-dev \
  openblas openblas-dev@community \
  libjpeg libjpeg-turbo-dev \
  libpng libpng-dev \
  tiff tiff-dev \
  libwebp libwebp-dev \
  openjpeg openjpeg-dev openjpeg-tools \
  libtbb@community libtbb-dev@community \
  eigen eigen-dev \
  linux-headers \
\
# Download source files
&& mkdir -p /opt/build && cd /opt/build \
&& wget -q https://github.com/opencv/opencv/archive/${OPENCV_VERSION}.zip -O opencv.zip \
&& unzip -qq opencv.zip -d /opt && rm -rf opencv.zip \
&& wget -q https://github.com/opencv/opencv_contrib/archive/${OPENCV_VERSION}.zip -O opencv_contrib.zip \
&& unzip -qq opencv_contrib.zip -d /opt && rm -rf opencv_contrib.zip \
\
# Prepare optimal build settings
&& NB_CORES=$(grep -c '^processor' /proc/cpuinfo) \
\
# Install opencv
&& cmake \
  -D CMAKE_BUILD_TYPE=RELEASE \
  -D CMAKE_INSTALL_PREFIX=/usr/local \
  -D EIGEN_INCLUDE_PATH=/usr/include/eigen3 \
  -D OPENCV_ENABLE_NONFREE=OFF \
  -D WITH_JPEG=ON \
  -D WITH_PNG=ON \
  -D WITH_TIFF=ON \
  -D WITH_WEBP=ON \
  -D WITH_JASPER=ON \
  -D WITH_EIGEN=ON \
  -D WITH_TBB=ON \
  -D WITH_LAPACK=ON \
  -D WITH_PROTOBUF=ON \
  -D WITH_V4L=OFF \
  -D WITH_GSTREAMER=OFF \
  -D WITH_GTK=OFF \
  -D WITH_QT=OFF \
  -D WITH_CUDA=OFF \
  -D WITH_VTK=OFF \
  -D WITH_OPENEXR=OFF \
  -D WITH_FFMPEG=OFF \
  -D WITH_OPENCL=OFF \
  -D WITH_OPENNI=OFF \
  -D WITH_XINE=OFF \
  -D WITH_GDAL=OFF \
  -D WITH_IPP=OFF \
  -D BUILD_OPENCV_PYTHON3=OFF \
  -D BUILD_OPENCV_PYTHON2=OFF \
  -D BUILD_OPENCV_JAVA=OFF \
  -D BUILD_TESTS=OFF \
  -D BUILD_IPP_IW=OFF \
  -D BUILD_PERF_TESTS=OFF \
  -D BUILD_EXAMPLES=OFF \
  -D BUILD_ANDROID_EXAMPLES=OFF \
  -D BUILD_DOCS=OFF \
  -D BUILD_ITT=OFF \
  -D INSTALL_PYTHON_EXAMPLES=OFF \
  -D INSTALL_C_EXAMPLES=OFF \
  -D INSTALL_TESTS=OFF \
  -D OPENCV_EXTRA_MODULES_PATH=/opt/opencv_contrib-${OPENCV_VERSION}/modules/text \
  /opt/opencv-${OPENCV_VERSION} \
&& make --jobs $(($NB_CORES*2)) --silent \
&& make install \
\
# Clean up when done
&& rm -rf /opt/build/* \
&& rm -rf /opt/opencv-${OPENCV_VERSION} \
&& rm -rf /opt/opencv_contrib-${OPENCV_VERSION} \
&& apk del --no-cache \
  build-base cmake \
  wget unzip \
  hdf5-dev \
  protobuf-dev \
  openblas-dev \
  libjpeg-turbo-dev \
  libpng-dev \
  tiff-dev \
  libwebp-dev \
  openjpeg-dev openjpeg-tools \
  libtbb-dev \
  eigen-dev \
  linux-headers

ENV OPENCV_LIB_DIR=/usr/local/lib
ENV OPENCV_INCLUDE_DIR=/usr/local/include/opencv4
ENV OPENCV_BIN_DIR=/usr/local/bin
%%END%%