ovs-collect

#!/bin/bash
## -*- mode: bash; indent-tabs-mode: nil; perl-indent-level: 4 -*-
## vim: autoindent tabstop=4 shiftwidth=4 expandtab softtabstop=4 filetype=bash

interval=$1; shift
ovs_dir="/var/run/openvswitch"
vswitchd_pid=$(pgrep ovs-vswitchd)
re='^[1-9][0-9]*$'

if [[ ! "$interval" =~ $re ]]; then
    echo "Interval must a be a positive interger, exiting"
    exit 1
fi

if [ ! -e $ovs_dir ]; then
    echo "ERROR: could not find $ovs_dir"
    exit 1
fi

declare -A cmd_opts
cmd_opts["ovs-vsctl"]="show"
cmd_opts["ovs-ofctl"]="show"

for cmd in ${!cmd_opts[@]}; do
    echo "cmd: $cmd"
    ver=$($cmd --version)
    rc=$?
    if [ $rc -gt 0 ]; then
        echo "Could not run $cmd"
        exit 1
    fi
done

bridges=$(ovs-vsctl --db=unix:"$ovs_dir"/db.sock list-br)
echo "bridges: $bridges"
echo
echo "$ovs_dir:"
/bin/ls -l "$ovs_dir"
echo

ofctl_cmds=("dump-ports --names" "dump-flows")
appctl_cmds=("dpctl/dump-flows --more --names" "dpctl/ct-stats-show" "dpctl/show --statistics"\
             "coverage/show" "memory/show" "upcall/show" "dpif-netdev/pmd-perf-show")
target="--target "$ovs_dir"/ovs-vswitchd.$vswitchd_pid.ctl"

while true; do
    for bridge in $bridges; do
        for ofctl_cmd in "${ofctl_cmds[@]}"; do
            ofctl_file=ofctl-`echo $ofctl_cmd | awk '{print $1}' | sed -e sX/X-X`.txt
            echo >>$ofctl_file
            echo "DATE:$(date +%s.%N)" >>$ofctl_file
            echo "[ovs-ofctl $ofctl_cmd $bridge]" >>$ofctl_file
            ovs-ofctl -O OpenFlow15 $ofctl_cmd unix:"$ovs_dir"/$bridge.mgmt >>$ofctl_file
        done
    done

    ## see https://www.openvswitch.org/support/dist-docs/ovs-vswitchd.8.html "DATAPATH FLOW TABLE DEBUGGING COMMANDS"

    ovs-appctl $target dpif-netdev/pmd-stats-clear 2>&1 >> pmd-stats-clear.stdouterr.txt
    sleep $interval
    for appctl_cmd in "${appctl_cmds[@]}"; do
        appctl_file=appctl-`echo $appctl_cmd | awk '{print $1}' | sed -e sX/X-X`.txt
        echo >>$appctl_file
        echo "DATE:$(date +%s.%N)" >>$appctl_file
        echo ovs-appctl $target $appctl_cmd '>>'$appctl_file
        ovs-appctl $target $appctl_cmd >>$appctl_file
    done
done