ns_functions

#!/bin/sh

#Globally defined variables
# ROUTER_ID
# ROUTER_NAME
# ACTIVE_HOST_NAME
# CONTAINER_NAME

FIND_ROUTER_ID_FROM_NAME(){
  ROUTER_NAME=$1
  local router_name=${ROUTER_NAME}
  res=$(openstack router list | grep -w ${router_name} | wc -l)
  if [ $res == 0 ]; then
    INFO "No router matches name: ${router_name}"
    exit -1
  elif [ $res -gt 1 ]; then
    INFO "More than one router matches name: ${router_name}"
    exit -1
  fi
  ROUTER_ID=$(openstack router list | grep -w ${router_name} | cut -d "|" -f 2 | tr -dc '0-9a-z-')
  INFO "ID for router name: ${router_name} is "${ROUTER_ID}
}

FIND_ACTIVE_HOST_FOR_ROUTER(){
  #Args: router_id
  local router_id=$1
  local router_name=${ROUTER_NAME}
  res=$(neutron l3-agent-list-hosting-router ${router_id} | grep -w "active" | wc -l)
  if [ $res == 0 ]; then
    INFO "No host is active yet for ${router_name}"
    exit -1
  elif [ $res -gt 1 ]; then
    INFO "More than one host active for router name: ${router_name}"
    exit -1
  fi
  ACTIVE_HOST_NAME=$(neutron l3-agent-list-hosting-router ${router_id} | grep -w "active" | cut -d "|" -f 3 | tr -dc '0-9a-zA-Z-')
  INFO "Active host name for router name: ${router_name} is "${ACTIVE_HOST_NAME}
}

FIND_L3AGENT_CONTAINER_NAME(){
  # Args hostname
  local hostname=$1
  CONTAINER_NAME=$(ssh ${hostname} "dp | grep l3 | awk '{ print \$1}'")
  DEBUG $CONTAINER_NAME
}

echo_and_do() {
  DEBUG "Executing: $@"
  "$@"
}

INSIDE_NAMESPACE(){
  # ssh -t i11-ctrl-sr-1 "docker exec -itu root neutron_l3_agent_9704 ip netns exec qrouter-3c0ef0a4-b90c-4ff9-b56d-1bc58f8bf118 bash"
  echo_and_do ssh -t ${ACTIVE_HOST_NAME} docker exec -itu root ${CONTAINER_NAME} ip netns exec qrouter-${ROUTER_ID} bash
}