From 51af5f0eb4cddbe6aa7953717873691d77aae9ff Mon Sep 17 00:00:00 2001 From: V3n3RiX Date: Wed, 10 Jul 2019 23:40:16 +0100 Subject: gentoo resync : 11.07.2019 --- app-emulation/libvirt/files/libvirt-guests.init-r4 | 237 +++++++++++++++++++++ 1 file changed, 237 insertions(+) create mode 100644 app-emulation/libvirt/files/libvirt-guests.init-r4 (limited to 'app-emulation/libvirt/files/libvirt-guests.init-r4') diff --git a/app-emulation/libvirt/files/libvirt-guests.init-r4 b/app-emulation/libvirt/files/libvirt-guests.init-r4 new file mode 100644 index 000000000000..b29f04c24a54 --- /dev/null +++ b/app-emulation/libvirt/files/libvirt-guests.init-r4 @@ -0,0 +1,237 @@ +#!/sbin/openrc-run + +description="Virtual Machine Management (libvirt) Guests" + +depend() { + use libvirtd +} + +# set the default to QEMU +[ -z "${LIBVIRT_URIS}" ] && LIBVIRT_URIS="qemu:///system" + +# default to suspending the VM via managedsave +case "${LIBVIRT_SHUTDOWN}" in + managedsave|shutdown|destroy) ;; + *) LIBVIRT_SHUTDOWN="managedsave" ;; +esac + +# default to 500 seconds +[ -z ${LIBVIRT_MAXWAIT} ] && LIBVIRT_MAXWAIT=500 + +gueststatefile="/var/lib/libvirt/libvirt-guests.state" +netstatefile="/var/lib/libvirt/libvirt-net.state" + +do_virsh() { + local hvuri=$1 + shift + + # if unset, default to qemu + [ -z ${hvuri} ] && hvuri="qemu:///system" + # if only qemu was supplied then correct the value + [ "xqemu" = x${hvuri} ] && hvuri="qemu:///system" + + # Silence errors because virsh always throws an error about + # not finding the hypervisor version when connecting to libvirtd + # lastly strip the blank line at the end + LC_ALL=C virsh -c ${hvuri} "$@" 2>/dev/null | head -n -1 +} + +libvirtd_dom_list() { + # Only work with domains by their UUIDs + local hvuri=$1 + shift + + # The grep is to remove dom0 for xen domains. Otherwise we never hit 0 + do_virsh "${hvuri}" list --uuid $@ | grep -v 00000000-0000-0000-0000-000000000000 +} + +libvirtd_dom_count() { + local hvuri=$1 + shift + + libvirtd_dom_list "${hvuri}" $@ | wc -l +} + +libvirtd_net_list() { + # Only work with networks by their UUIDs + local hvuri=$1 + shift + + do_virsh "${hvuri}" net-list --uuid $@ +} + +libvirtd_net_count() { + local hvuri=$1 + shift + + libvirtd_net_list "${hvuri}" $@ | wc -l +} + +libvirtd_dom_stop() { + # stops all persistent or transient domains for a given URI + # $1 - uri + # $2 - persisent/transient + + local uri=$1 + local persist=$2 + local shutdown_type=${LIBVIRT_SHUTDOWN} + local counter=${LIBVIRT_MAXWAIT} + local dom_name= + local dom_as= + local dom_ids= + local uuid= + local dom_count= + + [ "${persist}" = "--transient" ] && shutdown_type="shutdown" + [ -n "${counter}" ] || counter=500 + + einfo " Shutting down domain(s) ..." + + # grab all persistent or transient domains running + dom_ids=$(libvirtd_dom_list ${uri} ${persist}) + + for uuid in ${dom_ids}; do + # Get the name + dom_name=$(do_virsh ${uri} domname ${uuid}) + einfo " ${dom_name}" + # Get autostart state + dom_as=$(do_virsh ${uri} dominfo ${uuid} | \ + awk '$1 == "Autostart:" { print $2 }') + + if [ "${persist}" = "--persistent" ]; then + # Save our running state only if LIBVIRT_IGNORE_AUTOSTART != yes + if [ "x${LIBVIRT_IGNORE_AUTOSTART}" = "xyes" ] && \ + [ ${dom_as} = "enabled" ]; then + : + else + echo "${uri} ${uuid}" >> ${gueststatefile} + fi + + fi + + # Now let's stop it + do_virsh "${uri}" ${shutdown_type} ${uuid} > /dev/null + + done + + dom_count="$(libvirtd_dom_count ${uri} ${persist})" + while [ ${dom_count} -gt 0 ] && [ ${counter} -gt 0 ] ; do + dom_count="$(libvirtd_dom_count ${uri} ${persist})" + sleep 1 + if [ "${shutdown_type}" = "shutdown" ]; then + counter=$((${counter} - 1)) + fi + printf "." + done + + if [ "${shutdown_type}" = "shutdown" ]; then + # grab all domains still running + dom_ids=$(libvirtd_dom_list ${uri} ${persist}) + for uuid in ${dom_ids}; do + dom_name=$(do_virsh ${uri} domname ${uuid}) + eerror " ${dom_name} forcibly stopped" + do_virsh "${uri}" destroy ${uuid} > /dev/null + done + fi +} + +libvirtd_net_stop() { + # stops all persistent or transient domains for a given URI + # $1 - uri + # $2 - persisent/transient + + local uri=$1 + local persist=$2 + local uuid= + local net_name= + + if [ "${LIBVIRT_NET_SHUTDOWN}" != "no" ]; then + + einfo " Shutting down network(s):" + for uuid in $(libvirtd_net_list ${uri} ${persist}); do + net_name=$(do_virsh ${uri} net-name ${uuid}) + einfo " ${net_name}" + + if [ "${persist}" = "--persistent" ]; then + # Save our running state + echo "${uri} ${uuid}" >> ${netstatefile} + + fi + + # Actually stop the network + do_virsh qemu net-destroy ${uuid} > /dev/null + done + + fi +} + +start() { + local uri= + local uuid= + local name= + + for uri in ${LIBVIRT_URIS}; do + do_virsh "${uri}" connect + if [ $? -ne 0 ]; then + eerror "Failed to connect to '${uri}'. Domains may not start." + fi + done + + [ ! -e "${netstatefile}" ] && touch "${netstatefile}" + [ ! -e "${gueststatefile}" ] && touch "${gueststatefile}" + + # if the user didn't want to start any guests up then respect their wish + [ "x${LIBVIRT_START}" = "xno" ] && return 0 + + # start networks + ebegin "Starting libvirt networks" + while read -r uri uuid + do + # ignore trash + [ -z "${uri}" ] || [ -z "${uuid}" ] && continue + + name=$(do_virsh "${uri}" net-name ${uuid}) + einfo " ${name}" + do_virsh "${uri}" net-start ${uuid} > /dev/null + done <"${netstatefile}" + eend 0 + + # start domains + ebegin "Starting libvirt domains" + while read -r uri uuid + do + # ignore trash + [ -z "${uri}" ] || [ -z "${uuid}" ] && continue + + name=$(do_virsh "${uri}" domname ${uuid}) + einfo " ${name}" + do_virsh "${uri}" start ${uuid} > /dev/null + do_virsh "${uri}" domtime --sync ${uuid} > /dev/null + done <"${gueststatefile}" + eend 0 +} + +stop() { + local counter= + local dom_name= + local net_name= + local dom_ids= + local uuid= + local dom_count= + + rm -f "${gueststatefile}" + [ $? -ne 0 ] && eerror "Unable to save domain state" + rm -f "${netstatefile}" + [ $? -ne 0 ] && eerror "Unable to save net state" + + for uri in ${LIBVIRT_URIS}; do + einfo "Stopping libvirt domains and networks for ${uri}" + + libvirtd_dom_stop "${uri}" "--persistent" + libvirtd_dom_stop "${uri}" "--transient" + libvirtd_net_stop "${uri}" "--persistent" + libvirtd_net_stop "${uri}" "--transient" + + einfo "Done stopping domains and networks for ${uri}" + done +} -- cgit v1.2.3