#!/bin/sh VERSION="21.10" PROGNAME=$(basename "$0") show_version() { cat <, Alexis Ben Miloud--Josselin , Jérémy Lecour and others. ${PROGNAME} comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to redistribute it under certain conditions. See the GNU General Public Licence for details. END } show_help() { cat < or ${PROGNAME} --units END } error () { echo "$0": "$@" >&2 exit 1 } main() { for VM in $(virsh list --name --all) do echo "$VM" # cpu virsh vcpucount --current "$VM" # mem # libvirt stores memory in KiB, POW must be lowered by 1 virsh dommemstat "$VM" 2>/dev/null | awk 'BEGIN{ret=1}$1~/^actual$/{print $2 / '$((POW / 1024))';ret=0}END{exit ret}' || virsh dumpxml "$VM" | awk -F'[<>]' '$2~/^memory unit/{print $3/'$((POW / 1024))'}' # disk for BLK in $(virsh domblklist "$VM" | sed '1,2d;/-$/d;/^$/d' | awk '{print $1}') do virsh domblkinfo "$VM" "$BLK" 2>/dev/null done | awk '/Physical:/ { size += $2 } END { print int(size / '${POW}') }' # state virsh domstate "$VM" | grep -q '^running$' && echo yes || echo no done | xargs -n5 | { echo vm vcpu ram disk running awk '{ print } /yes$/ { vcpu += $2; ram += $3; disk += $4; running++ } END { print "TOTAL(running)", vcpu, ram, disk, running }' test "$SHOW_AVAIL" && { nproc awk '/^MemTotal:/ { print int($2 / '$((POW / 1024))' ) }' /proc/meminfo } | xargs -r printf 'AVAILABLE %s %s %s %s\n' } | case "$FMT" in 'human') column -t ;; 'html') awk 'BEGIN{print "\n"}{printf "";for(i=1;i<=NF;i++)printf "", $i;print ""}END{print "

\n"}' ;; 'csv') tr ' ' ',' ;; esac } parse_units() { case "$1" in 'k') POW="$(echo '1024 ^ 1' | bc)" ;; 'm') POW="$(echo '1024 ^ 2' | bc)" ;; 'g') POW="$(echo '1024 ^ 3' | bc)" ;; *) printf 'ERROR: Unknown unit value: %s. Possible values: %s\n' "$1" "k, m, g" >&2 echo "" >&2 show_usage >&2 exit 1 ;; esac } parse_output() { case "$1" in 'csv'|'html'|'human') FMT="$1" ;; *) printf 'ERROR: Unknown output value : %s. Possible values: %s\n' "$1" "csv, html, human" >&2 echo "" >&2 show_usage >&2 exit 1 ;; esac } # Check dependencies for DEP in bc virsh do command -v "$DEP" > /dev/null || error "$DEP" 'command not found' done # default values POW="$(echo '1024 ^ 3' | bc)" FMT='human' # Parse options # based on https://gist.github.com/deshion/10d3cb5f88a21671e17a while :; do case $1 in -h|-\?|--help) show_help exit 0 ;; -V|--version) show_version exit 0 ;; -a|--all) SHOW_AVAIL='y' ;; -u|--units) # with value separated by space if [ -n "$2" ]; then parse_units "$2" shift else printf 'ERROR: "-u|--units" requires a non-empty option argument.\n' >&2 exit 1 fi ;; --units=?*) # with value speparated by = parse_units ${1#*=} ;; --units=) # without value printf 'ERROR: "--units" requires a non-empty option argument.\n' >&2 exit 1 ;; -o|--output) # with value separated by space if [ -n "$2" ]; then parse_output "$2" shift else printf 'ERROR: "-o|--output" requires a non-empty option argument.\n' >&2 exit 1 fi ;; --output=?*) # with value speparated by = parse_output ${1#*=} ;; --output=) # without value printf 'ERROR: "--output" requires a non-empty option argument.\n' >&2 exit 1 ;; --) # End of all options. shift break ;; -?*|[[:alnum:]]*) # ignore unknown options printf 'ERROR: Unknown option : %s\n' "$1" >&2 echo "" >&2 show_usage >&2 exit 1 ;; *) # Default case: If no more options then break out of the loop. break ;; esac shift done main