[SOLVED] How to intercept all packets from eth0 of container interface by dpdk application in docker container

How to intercept all packets from eth0 of container interface by dpdk application in docker container

I have setup hugepages, created container and deployed dpdk application to container, but my application return 0 for rte_eth_dev_count_avail, what could I miss

arguments which I pass for application:

/usr/bin/fwdd -l 0-3 -n 4 --vdev=net_tap0,iface=eth0

setup hugepages

function setup_hugepages()
{
    echo "Setup hugepages"
    sysctl -w vm.nr_hugepages=1024
    echo 1024 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages

    MOUNT_POINT="/mnt/huge"
    if [ ! $(mountpoint -q "${MOUNT_POINT}") ]; then
        echo "Mounting hugepages"
        mkdir -p ${MOUNT_POINT}
        mount -t hugetlbfs nodev ${MOUNT_POINT}
    else
        echo "Hugepages are already mounted at ${MOUNT_POINT}"
    fi
}

create container

docker run -itd --privileged --cap-add=ALL \
    -v /sys/bus/pci/devices:/sys/bus/pci/devices \
    -v /sys/kernel/mm/hugepages:/sys/kernel/mm/hugepages \
    -v /sys/devices/system/node:/sys/devices/system/node \
    -v /dev:/dev \
    -v /mnt/huge:/mnt/huge \
    -v /sys/fs/cgroup:/sys/fs/cgroup:ro \
    --name nstk nstk_image

part of dpdk application

int main(int argc, char* argv[])
{
    int ret = rte_eal_init(argc, argv);
    if (ret < 0) {
        NSTK_LOG_DEBUG("Error: EAL initialization failed");
        return EXIT_FAILURE;
    }

    if (rte_eth_dev_count_avail() == 0) {
        NSTK_LOG_DEBUG("Error: No available Ethernet ports");
        return EXIT_FAILURE;
    }
...

Solution