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Note: ThePVCsize should be larger than 70G.

mkdir dockerbuilder && cd dockerbuilder

# prepare the artifacts used for FlexRAN prebuilt binary Docker image
mkdir docker-image-building
cat >  docker-image-building/readme << 'EOF'
# Instructions of Docker image generation

# Following steps are supposed to be executed inside building Pod,
# after building FlexRAN from source code

flxr_install_dir=/opt/fb/flexran/

# populate flexran related env var
cd ${flxr_install_dir}
source set_env_var.sh -d

# prepare the FlexRAN binaries
./transport.sh

# build the Docker image
docker build -t flr-run -f Dockerfile .

# tag and push
orgname=somename
docker tag flr-run ${orgname}/flr-run

EOF

cat >  docker-image-building/transport.sh << 'EOF'
#!/bin/bash

# ICXPATH=/opt/fb/intel/oneapi/

echo "Make sure source setvars.sh first.(located in ICX oneapi installation directory)"
echo "Make sure source set_env_var.sh -d first.(located in FlexRAN installation directory)"

[[ -z "$MKLROOT" ]] && { echo "MKLROOT not set, exit..."; exit 1; }
[[ -z "$IPPROOT" ]] && { echo "MKLROOT not set, exit..."; exit 1; }
[[ -z "$CMPLR_ROOT" ]] && { echo "MKLROOT not set, exit..."; exit 1; }
[[ -z "$DIR_WIRELESS_SDK_ROOT" ]] && { echo "DIR_WIRELESS_SDK_ROOT not set, exit..."; exit 1; }

FLXPATH=`echo $DIR_WIRELESS_SDK_ROOT| awk -F '/sdk' '{print $1}'`

[[ -d stuff ]] && { echo "Directory stuff exists, move it to old."; mv -f stuff stuff.old; }

mkdir stuff; cd stuff

mkdir libs
cp -a $MKLROOT/lib/intel64/libmkl_intel_lp64.so* libs
cp -a $MKLROOT/lib/intel64/libmkl_core.so* libs
cp -a $MKLROOT/lib/intel64/libmkl_intel_thread.so* libs
cp -a $MKLROOT/lib/intel64/libmkl_avx512.so.* libs
cp -a $MKLROOT/lib/intel64/libmkl_avx2.so* libs
cp -a $MKLROOT/lib/intel64/libmkl_avx.so* libs

cp -a $IPPROOT/lib/intel64/libipps.so* libs
cp -a $IPPROOT/lib/intel64/libippe.so* libs
cp -a $IPPROOT/lib/intel64/libippcore.so* libs
cp -a $IPPROOT/lib/intel64/libippee9.so* libs
cp -a $IPPROOT/lib/intel64/libippse9.so* libs

cp -a $CMPLR_ROOT/linux/compiler/lib/intel64_lin/libiomp5.so* libs
cp -a $CMPLR_ROOT/linux/compiler/lib/intel64_lin/libirc.so* libs
cp -a $CMPLR_ROOT/linux/compiler/lib/intel64_lin/libimf.so* libs
cp -a $CMPLR_ROOT/linux/compiler/lib/intel64_lin/libsvml.so* libs
cp -a $CMPLR_ROOT/linux/compiler/lib/intel64_lin/libintlc.so* libs
cp -a $CMPLR_ROOT/linux/compiler/lib/intel64_lin/libirng.so* libs

cp -a $FLXPATH/libs/cpa/bin/libmmwcpadrv.so* libs
cp -a $FLXPATH/wls_mod/libwls.so* libs

mkdir -p flexran/sdk/build-avx512-icx/
cp -rf $FLXPATH/sdk/build-avx512-icx/source flexran/sdk/build-avx512-icx/
cp -rf $FLXPATH/sdk/build-avx512-icx/install flexran/sdk/build-avx512-icx/
cp -rf $FLXPATH/bin flexran/
cp -rf $FLXPATH/set_env_var.sh flexran/

# testcase files
mkdir -p tests/nr5g/
cd tests/nr5g/
for cfg in $FLXPATH/bin/nr5g/gnb/testmac/icelake-sp/*.cfg
do
  cat $cfg | grep TEST_FD > /tmp/$$.testfile
  while IFS= read line
  do
    array=($(echo "$line" | sed 's/5GNR,/ /g'))
    for i in "${array[@]}"; do
      if [[ "$i" =~ \.cfg ]]; then
        casedir=`echo "$i"| cut -d / -f 1-3 | xargs`
        caseabsdir=$FLXPATH/tests/nr5g/$casedir
        [[ ! -d $casedir ]] && { mkdir -p $casedir; cp -rf $caseabsdir/* $casedir; }
      fi
    done
  done < /tmp/$$.testfile
done

echo "Transportation Completed."
EOF

chmod a+x docker-image-building/transport.sh

cat >  docker-image-building/set-l1-env.sh << 'EOF'
# source this script to l1 binary location

export WORKSPACE=/root/flexran
export isa=avx512

cd $WORKSPACE
source ./set_env_var.sh -i ${isa}

MODE=$1
[[ -z "$MODE" ]] && read -p "Enter the MODE(LTE or 5G): " MODE

if [ $MODE = LTE ]; then
  cd $WORKSPACE/bin/lte/l1/
fi
if [ $MODE = 5G ]; then
  cd $WORKSPACE/bin/nr5g/gnb/l1
fi
EOF

cat >  docker-image-building/set-l2-env.sh << 'EOF'
# source this script to l2 binary location

export WORKSPACE=/root/flexran
export isa=avx512

cd $WORKSPACE
source ./set_env_var.sh -i ${isa}

MODE=$1
[[ -z "$MODE" ]] && read -p "Enter the MODE(LTE or 5G): " MODE

if [ $MODE = LTE ]; then
  cd $WORKSPACE/bin/lte/testmac/
fi
if [ $MODE = 5G ]; then
  cd $WORKSPACE/bin/nr5g/gnb/testmac
fi
EOF

cat >  docker-image-building/res-setup.sh << 'EOF'
#!/bin/bash

[[ -z "$PCIDEVICE_INTEL_COM_INTEL_ACC100_FEC" ]] && { echo "ACC100 not used, sleep..."; sleep infinity; }

sed -i 's#.*dpdkBasebandFecMode.*#        <dpdkBasebandFecMode\>1</dpdkBasebandFecMode>#' /root/flexran/bin/nr5g/gnb/l1/phycfg_timer.xml
sed -i 's#.*dpdkBasebandDevice.*#        <dpdkBasebandDevice\>'"$PCIDEVICE_INTEL_COM_INTEL_ACC100_FEC"'</dpdkBasebandDevice>#' /root/flexran/bin/nr5g/gnb/l1/phycfg_timer.xml

echo "Resource setup Completed, sleep..."
sleep infinity
EOF

chmod a+x docker-image-building/res-setup.sh

mkdir docker-image-building/rootdir
mv docker-image-building/res-setup.sh docker-image-building/rootdir
mv docker-image-building/set-l1-env.sh docker-image-building/rootdir
mv docker-image-building/set-l2-env.sh docker-image-building/rootdir

cat >  docker-image-building/Dockerfile << 'EOF'
FROM centos:7.9.2009

RUN [ -e /etc/yum.conf ] && sed -i '/tsflags=nodocs/d' /etc/yum.conf || true

RUN yum install -y libhugetlbfs* libstdc++* numa* gcc g++ iproute \
           module-init-tools kmod pciutils python libaio libaio-devel \
           numactl-devel nettools ethtool
RUN yum clean all

COPY stuff/libs/* /usr/lib64/

WORKDIR /root/
COPY stuff/flexran ./flexran
COPY stuff/tests ./flexran/tests
COPY rootdir/* ./

CMD ["/root/res-setup.sh"]
EOF

cat >  Dockerfile << 'EOF'
FROM centos:7.9.2009

RUN [ -e /etc/yum.conf ] && sed -i '/tsflags=nodocs/d' /etc/yum.conf || true

RUN yum groupinstall -y 'Development Tools'

RUN yum install -y vim gcc-c++ libhugetlbfs* libstdc++* kernel-devel numa* gcc git mlocate \
           cmake wget ncurses-devel hmaccalc zlib-devel binutils-devel elfutils-libelf-devel \
           numactl-devel libhugetlbfs-devel bc patch git patch tar zip unzip python3 sudo docker

RUN yum install -y gtk3 mesa-libgbm at-spi2-core libdrm xdg-utils libxcb libnotify

RUN yum install -y centos-release-scl
RUN yum install -y devtoolset-8

RUN yum clean all

RUN pip3 install meson && \
    pip3 install ninja pyelftools

# ENV HTTP_PROXY=""
# ENV HTTPS_PROXY=""

WORKDIR /usr/src/
RUN git clone https://github.com/pkgconf/pkgconf.git
WORKDIR /usr/src/pkgconf
RUN ./autogen.sh && ./configure && make && make install

WORKDIR /usr/src/
RUN git clone git://git.kernel.org/pub/scm/utils/rt-tests/rt-tests.git
WORKDIR /usr/src/rt-tests
RUN git checkout stable/v1.0
RUN make all && make install

COPY docker-image-building /root/docker-image-building

WORKDIR /opt

# Set default command
CMD ["/usr/bin/bash"]
EOF

# build the Docker image for FlexRAN building environment
sudo docker build -t flexran-builder .
sudo docker tag flexran-builder registry.local:9001/flexran-builder:22.03

# push to registry.local:9001
# user: admin
sudo docker login registry.local:9001 sudo-u dockeradmin push registry-p <your_sysadmin_passwd>
sudo docker push registry.local:9001/flexran-builder:22.03

Note: This pod is assumed to be assigned enough resources to launch quickly after FlexRAN is built. If you don’t have isolated CPU, hugepage and accelerator resources configured as part of the system used for building, feel free to remove related content from the yaml spec file. Hugepages-1Gi and intel.com/intel_acc100_fec are not required to perform the build.

Note: Since host path/var/run/docker.sock has been mounted into the building pod, you can build the Docker image using the FlexRAN binaries from the previous step inside the building pod. The artifacts used by docker build have been integrated into the build image and are ready to use.