networking-vpp/devstack/functions

#!/bin/bash
#
# functions - networking-vpp driver devstack utility functions

function install_vpp {
  # TODO: Make VPP branch configurable
  if is_fedora; then
      sudo tee /etc/yum.repos.d/fdio.repo <<EOF
[fdio-master]
name=fd.io master branch latest merge
baseurl=https://nexus.fd.io/content/repositories/fd.io.$VPP_BRANCH.centos7/
enabled=1
gpgcheck=0
EOF
  elif is_ubuntu; then
      echo "deb [trusted=yes] https://nexus.fd.io/content/repositories/fd.io.$VPP_BRANCH.ubuntu.$os_CODENAME.main/ ./" | sudo tee  /etc/apt/sources.list.d/99fd.io.list
  else
      die $LINENO "Can't install VPP on unsupported os: $os_VENDOR"
  fi
  install_package vpp
  if is_set VPP_STARTUP_CONFIG; then
      if [[ -f "$VPP_STARTUP_CONFIG" && -r "$VPP_STARTUP_CONFIG" ]]; then
          sudo cp -f /etc/vpp/startup.conf /etc/vpp/startup.conf.devstack_bak
          sudo cp -f $VPP_STARTUP_CONFIG /etc/vpp/startup.conf
      else
          die $LINENO "VPP config file $VPP_STARTUP_CONFIG not a file or unreadable"
      fi
  elif is_set VPP_INT_PCI_DEV; then
      sudo sed -i "/dpdk  *{/a\ \ dev $VPP_INT_PCI_DEV" /etc/vpp/startup.conf
  else
      die $LINENO "VPP_STARTUP_CONFIG or VPP_INT_PCI_DEV must be set"
  fi
}

function start_vpp {
    is_package_installed vpp || install_vpp
    start_service vpp
}

function set_hugepages {
    if is_set NR_HUGEPAGES; then
        system_hugepages="$(cat /proc/meminfo | grep HugePages_Total | awk '{print $2}')"
        die_if_not_set $LINENO system_hugepages "Couldn't determine current system huge page count"
        if [ "$system_hugepages" -lt  "$NR_HUGEPAGES" ]; then
            sudo sysctl -w vm.nr_hugepages="$NR_HUGEPAGES"
            system_hugepages=$(cat /proc/meminfo | grep HugePages_Total | awk '{print $2}')
            if [ "$system_hugepages" -ne  "$NR_HUGEPAGES" ]; then
                die $LINENO "Failed to set system huge page count to $NR_HUGEPAGES"
            fi
        fi
    fi
}

function setup_host_env {
    is_package_installed etcd || install_package etcd
    restart_service etcd
    set_hugepages
    systemctl is-active vpp || start_vpp
    is_package_installed vpp-python-api || install_package vpp-python-api
}