kvmc
changeset 6 ed2b863f938f
parent 5 b4e073b1250e
child 7 ebe549994431
--- a/kvmc	Wed Jan 14 20:24:32 2009 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,201 +0,0 @@
-#! /bin/bash
-# $Id$
-# $URL$
-# status: in development
-# 2008 Heiko Schlittermann
-
-# Should be written in Perl!
-
-# Structure of virtual machine directories
-# $BASE     (see below, hard coded into this script)
-# |
-# +--<vm1>
-# |   +--conf
-# |   |     +--options
-# |   |     +--id
-# |   +--var
-# |   |     +--pid
-# |   |     +--running_options
-# |   +--<image1>
-# |   +-- ....
-# |   +--<imageN>
-# |
-# +--<vm2>             
-# | ....
-# +--<vmN>
-
-
-action="${1?}"; shift           # mandatory
-vm="$1"       ; shift           # optional
-
-# no user service able parts below
-
-PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
-unset ${!LC_*} LANG CDPATH
-
-ME=$(basename $0)
-BASE=/kvm
-KVM=$(command -v kvm)
-NC=$(command -v nc)
-FUSER=$(command -v fuser)
-VNCVIEWER=$(command -v vncviewer)
-TIMEOUT=30
-
-
-for f in "/etc/$ME.conf" ~/.$ME; do test -r "$f" && source "$f"; done
-
-
-die()       { echo $ME: "$@" >&2; exit 1; }
-warn()      { echo $ME: "$@" >&2; }
-silently()  { "$@" &>/dev/null; }
-
-debug()     { echo "DEBUG: $@" >&2; }
-
-unique_ids() {
-    local dups=$(cat $BASE/*/conf/id 2>/dev/null | sort -n | uniq -c \
-        | egrep -v '^[[:space:]]+1 ' | tr -s ' ' | cut -f2 -d:)
-    test "$dups" || return 0
-    ERR="$dups"  && return 1
-}
-
-convert_dirs() {
-    for dir in $BASE/*; do
-        test -d $dir/kvm || test -d $dir/conf || continue
-        local old=$dir/kvm
-        local new=$dir/conf
-        test -d $old && mv $old $new
-        test -f $new/cmdline && mv $new/cmdline $new/options
-    done
-}
-
-monitor() {
-    local port=$1;      shift
-    local command="$1"; shift
-
-    # check, if the monitor is available, kill if somebody
-    # else is using it
-    local client=$(netstat -tn | egrep ":$port[[:space:]]+EST" | tr -s ' ' | cut -f4 -d' ')
-    test "${client%:*}" = 127.0.0.1 && fuser -k ${client#*:}/tcp
-
-    local pid0 pid1
-    (
-        local a=$tmp/a.fifo; mkfifo $a
-        trap "rm -v $a" EXIT
-        exec 10<>$a
-        $NC localhost $port <&10 | {
-            read || exit       # banner
-            while read -d' '; do test "$REPLY" = "(qemu)" && break; done
-            echo "$command" >&10
-            while read -d' '; do test "$REPLY" = "(qemu)" && break; done
-        }
-    ) &  pid0=$!
-    ( sleep $TIMEOUT; kill $pid0 ) & pid1=$!
-    wait $pid0
-    silently kill $pid0 $pid1
-}
-
-### MAIN
-
-# sanity
-test -x "$NC"       || die "need nc (netcat)"
-test -x "$KVM"      || die "need kvm/qemu/kqemu"
-test -x "$FUSER"    || die "need fuser"
-test -d "$BASE"     || die "base dir $BASE does not exist"
-test -d "$BASE/$vm" || die "vm $vm does not exist"
-
-unique_ids          || die "duplicate ids (id: $ERR)"
-convert_dirs
-
-trap 'test "$TMP" && rm -fr $TMP' EXIT
-
-for vm in ${vm:-$(echo $BASE/*)}; do
-    vm=$(basename $vm)
-    conf=$BASE/$vm/conf
-    var=$BASE/$vm/var
-
-    tmp=$(mktemp -d)
-    TMP="$TMP $tmp"
-
-    test -d $conf           || continue
-    test -f $conf/id        || { warn "need id file (vm: $vm)" && continue; } 
-    test -f $conf/options   || { warn "need options file (vm: $vm)" && continue; }
-    test -d $var            || mkdir $var || exit 2
-
-    id=$(cat $conf/id)
-    port=$((4000 + id))
-    pid=$(cat $var/pid 2>/dev/null)
-
-    case "$action" in
-
-    start)
-        echo "starting $vm"
-        options="$(grep -v '^#' $conf/options) \
-        -pidfile var/pid \
-        -name "$vm" \
-        -vnc :$id \
-        -monitor tcp:localhost:$port,server,nowait \
-        $@"
-        options=$(echo "" $options)        # shorten it
-        echo "$options" > $var/running_options
-        test -f $var/frozen && options="$options $(cat $var/frozen)"
-
-        if silently fuser $var/pid; then
-            echo "running, pid: $pid, display :$id, monitor tcp:127.0.0.1:$port" 
-        else
-            ( cd $BASE/$vm && $KVM $options -daemonize )
-            pid=$(cat $var/pid 2>/dev/null)
-            test "$pid" || { warn "serious problem ($vm), no pid" && continue; }
-            echo "started, pid: $pid, display :$id, monitor tcp:127.0.0.1:$port" 
-        fi
-
-        test "$DISPLAY" && test "$VNCVIEWER" && test -t \
-        && ( silently exec $VNCVIEWER :$id </dev/null & )
-
-        ;;
-    stop)   
-        {
-        echo "stopping (powerdown) $vm"
-        monitor $port "system_powerdown"
-        silently fuser $var/pid && $0 quit $vm
-        } &
-        ;;
-    quit) 
-        {
-        echo "quit $vm"
-        monitor $port "quit"
-        silently fuser $var/pid && $0 kill $vm
-        } &
-        ;;
-    kill)   
-        echo "killing $vm"
-        kill $pid 
-        ;;
-    freeze) 
-        {
-        echo "freezing $vm"
-        monitor $port "savevm HIBERNATED"
-        monitor $port "quit" 
-        echo "-loadvm HIBERNATED" >$var/frozen
-        } &
-        ;;
-    qemu)
-        echo "DO *NOT* USE \"quit\", use ^C for exiting!"
-        $NC localhost $port
-        ;;
-
-    list)
-        echo "$vm:" $(silently fuser $var/pid \
-            && echo "running (pid: $pid)" \
-            || echo "not running")
-        ;;
-
-    *)  die "unknown command \"$action\""
-        ;;
-
-    esac
-
-done
-
-wait
-
-# vim:ts=4 sw=4 et: