写个脚本列出neutron的ovs的topology。

  1 #!/bin/bash
  2 ST=`nova hypervisor-servers $HOSTNAME | grep $1`
  3 if [[ $? != 0 ]] ; then
  4     echo "not find $1 on $HOSTNAME"
  5     nova hypervisor-servers $HOSTNAME
  6     exit 1
  7 fi
  8 
  9 ST=`nova show $1`
 10 if [[ $? != 0 ]] ; then
 11     nova list
 12     exit 1
 13 fi
 14 
 15 QEMU_NAME=`nova show $1 |grep "OS-EXT-SRV-ATTR:instance_name" | awk ‘{print $4}‘`
 16 if [[ $? != 0 ]] ; then
 17     exit 1
 18 fi
 19 
 20 ST=`sudo virsh domstate $1`
 21 if [[ $? != 0 ]] ; then
 22     exit 1
 23 fi
 24 if [[ "$ST" =~ "shut off" ]] ; then
 25     sudo virsh list --all
 26     echo "$QEMU_NAME is shut off"
 27     exit 1
 28 fi
 29 echo "vm name is: $QEMU_NAME"
 30 
 31 QEMU_CMD=`ps -ef |grep " $QEMU_NAME " |grep -v grep`
 32 # echo $QEMU_CMD
 33 QEMU_PID=`cut -d " " -f2 <<< $QEMU_CMD`
 34 CMD_IFS=""
 35 IF_FD=""
 36 HOST_FD=""
 37 [[ "$QEMU_CMD" =~ "-netdev" ]] && CMD_IFS=${QEMU_CMD#*-netdev}
 38 [[ "$QEMU_CMD" =~ "tap,fd=" ]] && CMD_IFS=${CMD_IFS#*tap,fd=} && IF_FD=${CMD_IFS%%,*}
 39 [[ "$QEMU_CMD" =~ "vhostfd=" ]] && CMD_IFS=${CMD_IFS#*vhostfd=} && HOST_FD=${CMD_IFS%% *}
 40 [[ "$QEMU_CMD" =~ "mac=" ]] && CMD_MAC=${QEMU_CMD#*mac=} && CMD_MAC=${CMD_MAC%%,*}
 41 
 42 echo "qemu pid is: $QEMU_PID, iface host fd: $HOST_FD, iface fd: $IF_FD, iface MAC: $CMD_MAC"
 43 
 44 # egrep -l iff:.*tap* /proc/*/fdinfo/* 2>/dev/null|cut -d/ -f3
 45 TAPNAME=`sudo cat /proc/$QEMU_PID/fdinfo/$IF_FD | grep "iff:.*tap*"`
 46 TAPNAME=${TAPNAME#iff:[[:space:]]*}
 47 # TAPNAME="${TAPNAME##[[:space:]]}"
 48 # TAPNAME="${TAPNAME//[[:space:]]/}"
 49 
 50 # kernel version less than 3.14
 51 if [[ -z $TAPNAME ]];  then
 52 TAPNAME=`ifconfig |grep ${CMD_MAC:2}`
 53 TAPNAME="${TAPNAME%%[[:space:]]*}"
 54 fi
 55 
 56 BR=`ls -l /sys/class/net/$TAPNAME/brport/bridge`
 57 BR=${BR##*/}
 58 # BR=""
 59 # for br in `ls /sys/class/net/`; do
 60 #     if [[ -d "/sys/class/net/$br/bridge"  && -d  "/sys/class/net/$br/lower_$TAPNAME" ]]; then
 61 #         BR=$br     
 62 #         break
 63 #     fi   
 64 # done
 65 
 66 echo ""
 67 echo "************************************************"
 68 echo "VM:$QEMU_NAME ---> tap: $TAPNAME ---> bridge: $BR"
 69 echo "************************************************"
 70 
 71 echo ""
 72 echo "************************************************"
 73 echo "bridge: $BR"
 74 for port in `ls /sys/class/net/$BR/brif/`; do
 75     echo "           |__ $port"
 76 done
 77 echo "************************************************"
 78 
 79 # BR_PORT="qvb${BR:3}"
 80 # OVS_PORT="qvo${BR_PORT:3}"
 81 OVS_BR_INT=""
 82 echo ""
 83 echo "************************************************"
 84 for port in `ls /sys/class/net/$BR/brif/`; do
 85     PORT_TY=`ethtool -i $port | grep "driver:" |awk ‘{print $2}‘`
 86     if [[ $PORT_TY == "veth" ]] ; then
 87         PEER_INDEX=`ethtool -S $port | grep "peer_ifindex:" |awk ‘{print $2}‘`
 88         for peer in `ls /sys/class/net/`; do
 89             INDEX=`cat /sys/class/net/$peer/ifindex`
 90             if [[ $PEER_INDEX == $INDEX ]]; then
 91                 if [[ -d /sys/class/net/$OVS_PORT/brport/bridge ]]; then
 92                     OVS_BR_INT=`ls /sys/class/net/$OVS_PORT/brport/bridge -l`
 93                     OVS_BR_INT=${OVS_BR_INT##*/}
 94                 else
 95                     OVS_BR_INT=`sudo ovs-vsctl port-to-br $peer`
 96                     # OVS_BR_INT=`sudo ovs-vsctl iface-to-br $peer`
 97                 fi
 98                 echo "bridge: $BR                                  bridge: $OVS_BR_INT"
 99                 echo "           |__ veth: $port <----> veth: $peer __|"
100             fi
101         done
102     fi
103 done
104 echo "************************************************"
105 
106 IS_OVS=`sudo ovs-vsctl list-br | grep $OVS_BR_INT`
107 OVS_INFOS=`sudo ovs-vsctl show |tr "\n" " "`
108 ALL=""
109 
110 echo ""
111 echo "************************************************"
112 while [[ "$OVS_INFOS" =~ "{peer=" ]]
113 do
114     PORT=${OVS_INFOS%%\}*}
115     PORT=${PORT%[[:space:]]*type*}
116     PORT=${PORT##*Interface}
117     PORT=`echo $PORT`
118     PEER=${OVS_INFOS#*\{peer=}
119     PEER=${PEER%%\}*}
120     OVS_INFOS=${OVS_INFOS#*\{peer=*\}}
121     if [[ ! "$ALL" =~ "$PORT" ]]
122     then
123         ALL="$ALL $PORT $PEER"
124         PEER_BR=`sudo ovs-vsctl iface-to-br $PORT`
125         BR=`sudo ovs-vsctl iface-to-br $PEER`
126         echo "bridge: $BR                                   bridge: $PEER_BR"
127         echo "           |__ veth: $PORT <----> veth: $PEER __|"
128         echo ""
129     else
130         continue
131     fi
132 done
133 echo "************************************************"
134 
135 # for port in `sudo ovs-vsctl show |grep "options: {peer=" |cut -d "=" -f2`
136 # do
137 #     port=${port%%\}*}
138 #     THIS_BR=`sudo ovs-vsctl iface-to-br $port`
139 #     if [[ $THIS_BR == $OVS_BR_INT ]]; then
140 #          
141 #         echo "bridge: $THIS_BR                             bridge: $PEER_BR"
142 #         echo "           |__ veth: $port <----> veth: $peer __|"
143 #      
144 #     fi
145 # done
146 
147 
148 # echo ""
149 # echo "************************************************"
150 # if [[ $IS_OVS == $OVS_BR_INT ]]; then
151 #     for port in `sudo ovs-vsctl list-ifaces br-int`; do
152 #         PORT_TY=`ethtool -i $port | grep "driver:" |awk ‘{print $2}‘`
153 #         if [[ $PORT_TY == "veth" ]] ; then
154 #             PEER_INDEX=`ethtool -S $port | grep "peer_ifindex:" |awk ‘{print $2}‘`
155 #             for peer in `ls /sys/class/net/`; do
156 #                 INDEX=`cat /sys/class/net/$peer/ifindex`
157 #                 if [[ $PEER_INDEX == $INDEX ]]; then
158 #                     PEER_INT=""
159 #                     if [[ -d /sys/class/net/$peer/brport/bridge ]]; then
160 #                         PEER_INT=`ls /sys/class/net/$peer/brport/bridge -l`
161 #                         PEER_INT=${PEER_INT##*/}
162 #                     else
163 #                         PEER_INT=`sudo ovs-vsctl port-to-br $peer`
164 #                         # PEER_INT=`sudo ovs-vsctl iface-to-br $peer`
165 #                     fi
166 #                     if [[ "x$PEER_INT" == "x" ]]; then
167 #                         continue
168 #                     fi
169 #                     echo "bridge: $BR                               bridge: $PEER_INT"
170 #                     echo "           |__ veth: $port <----> veth: $peer __|"
171 #                     echo ""
172 #                 fi
173 #             done
174 #         fi
175 #     done
176 # fi
177 # echo "************************************************"