[gentoo-commits] gentoo-x86 commit in app-emulation/libvirt/files: libvirtd.init-r15 libvirtd.confd-r5

[Matthias Maier (tamiko)]

tamiko      15/06/24 09:48:26

  Added:                libvirtd.init-r15 libvirtd.confd-r5
  Log:
  provide a configuration option for domains and network on restart, bug #551854
  
  (Portage version: 2.2.18/cvs/Linux x86_64, signed Manifest commit with key BD3A97A3)

Revision  Changes    Path
1.1                  app-emulation/libvirt/files/libvirtd.init-r15

file : http://sources.gentoo.org/viewvc.cgi/gentoo-x86/app-emulation/libvirt/files/libvirtd.init-r15?rev=1.1&view=markup
plain: http://sources.gentoo.org/viewvc.cgi/gentoo-x86/app-emulation/libvirt/files/libvirtd.init-r15?rev=1.1&content-type=text/plain

Index: libvirtd.init-r15
===================================================================
#!/sbin/runscript

description="Virtual Machine Management daemon (libvirt)"
extra_started_commands="reload halt"
description_halt="Stops the libvirt daemon without stopping your VMs"
description_reload="Restarts the libvirt daemon without stopping your VMs"

depend() {
    USE_FLAG_FIREWALLD
    use USE_FLAG_AVAHI USE_FLAG_ISCSI USE_FLAG_RBD dbus virtlockd
    after ntp-client ntpd nfs nfsmount portmap rpc.statd iptables ip6tables ebtables corosync sanlock cgconfig xenconsoled
}

libvirtd_virsh() {
    local mode=$1
    shift

    # Silence errors because virsh always throws an error about
    # not finding the hypervisor version when connecting to libvirtd
    LC_ALL=C virsh -c ${mode}:///system "$@" 2>/dev/null
}

libvirtd_dom_list() {
    # Make sure that it wouldn't be confused if the domain name
    # contains the word running.
    libvirtd_virsh $1 list | awk '$3 == "running" { print $1 }'
}

libvirtd_dom_count() {
    # Make sure that it wouldn't be confused if the domain name
    # contains the word running.
    libvirtd_virsh $1 list | awk 'BEGIN { count = 0 } \
        $3 == "running" { count++ } \
        END { print count }'
}

libvirtd_net_list() {
    # The purpose of the awk is to avoid networks with 'active' in the name
    libvirtd_virsh $1 net-list | awk '$2 == "active" { print $1 }'
}

libvirtd_net_count() {
    # The purpose of the awk is to avoid networks with 'active' in the name
    libvirtd_virsh $1 net-list | awk 'BEGIN { count = 0 } \
        $2 == "active" { count++ } \
        END { print count }'
}


start() {
    # Test configuration directories in /etc/libvirt/ to be either not
    # present or a directory, i.e. not a regular file, bug #532892
    for dir in lxc nwfilter qemu storage; do
      if [ -f /etc/libvirt/$dir ]; then
        eerror "/etc/libvirt/$dir was created as a regular file. It must be either"
        eerror "a directory or not present for libvirtd to start up successfully."
        return 1
      fi
    done

    ebegin "Starting libvirtd"
    start-stop-daemon --start \
        --env KRB5_KTNAME=/etc/libvirt/krb5.tab \
        --exec /usr/sbin/libvirtd -- -d ${LIBVIRTD_OPTS}
    eend $?
}

stop() {
    local policy=
    local counter=
    local net_policy=
    local vm_name=
    local net_name=
    local dom_id=

    ebegin "Stopping libvirtd"

    if [ "${RC_CMD}" = "restart" -a -n "${LIBVIRTD_KVM_RESTART}" ] ; then
        policy="${LIBVIRTD_KVM_RESTART}"
    else
        policy="${LIBVIRTD_KVM_SHUTDOWN}"
    fi

    # sanitize policy:
    if [ "${policy}" != "none" -a "${policy}" != "managedsave" -a "${policy}" != "shutdown" ] ; then
        if [ -n "${policy}" ] ; then
            eerror " !!! Invalid policy \"${policy}\" specified in LIBVIRTD_KVM_SHUTDOWN/RESTART"
        fi
        einfo "  Using default policy \"managedsave\" for domains"
        policy="managedsave"
    fi

    if [ -n "${LIBVIRTD_KVM_SHUTDOWN_MAXWAIT}" ] ; then
        counter="${LIBVIRTD_KVM_SHUTDOWN_MAXWAIT}"
    else
        counter=500
    fi

    if [ "${RC_CMD}" = "restart" -a -n "${LIBVIRTD_KVM_NET_RESTART}" ] ; then
        net_policy="${LIBVIRTD_KVM_NET_RESTART}"
    else
        net_policy="${LIBVIRTD_KVM_NET_SHUTDOWN}"
    fi

    # try to shutdown all (KVM/Qemu) domains
    if [ "${policy}" != "none" ] \
        && [ "$(libvirtd_dom_count qemu)" != "0" ] ; then

        einfo " Shutting down domain(s):"
        for dom_id in $(libvirtd_dom_list qemu) ; do
            vm_name="$(libvirtd_virsh qemu domname ${dom_id} | head -n 1)"
            einfo "   ${vm_name}"
            libvirtd_virsh qemu ${policy} ${dom_id} > /dev/null
        done

        if [ "${policy}" = "shutdown" ]; then
            einfo " Waiting ${counter} seconds while domains shutdown ..."
            DOM_COUNT="$(libvirtd_dom_count qemu)"
            while [ ${DOM_COUNT} -gt 0 ] && [ ${counter} -gt 0 ] ; do
                DOM_COUNT="$(libvirtd_dom_count qemu)"
                sleep 1
                counter=$((${counter} - 1))
                echo -n "."
            done
        fi

        if [ "$(libvirtd_dom_count qemu)" != "0" ] ; then
            eerror " !!! Some guests are still running, stopping anyway"
        fi
    fi

    # try to shutdown all networks
    if [ "${net_policy}" != "no" ] \
        && [ "$(libvirtd_net_count qemu)" != "0" ]; then

        einfo " Shutting down network(s):"
        for net_name in $(libvirtd_net_list qemu); do
            einfo "   ${net_name}"
            libvirtd_virsh qemu net-destroy ${net_name} > /dev/null
        done

        if [ "$(libvirtd_net_count qemu)" != "0" ]; then
            eerror " !!! Some networks are still active, stopping anyway"
        fi
    fi

    # Now actually stop the daemon
    start-stop-daemon --stop --quiet --exec \
        /usr/sbin/libvirtd --pidfile=/var/run/libvirtd.pid
    eend $?
}

halt() {
    ebegin "Stopping libvirtd without shutting down your VMs"
    start-stop-daemon --stop --quiet --exec \
        /usr/sbin/libvirtd --pidfile=/var/run/libvirtd.pid
    eend $?
}

reload() {
    halt
    start
}



1.1                  app-emulation/libvirt/files/libvirtd.confd-r5

file : http://sources.gentoo.org/viewvc.cgi/gentoo-x86/app-emulation/libvirt/files/libvirtd.confd-r5?rev=1.1&view=markup
plain: http://sources.gentoo.org/viewvc.cgi/gentoo-x86/app-emulation/libvirt/files/libvirtd.confd-r5?rev=1.1&content-type=text/plain

Index: libvirtd.confd-r5
===================================================================
# /etc/conf.d/libvirtd

# Startup dependency
# libvirtd typically requires all networks to be up and settled which
# is what rc_need="net" provides. However if you only use specific networks
# for libvirtd, you may override this. Or if you only use libvirtd locally.
rc_need="net"

# LIBVIRTD_OPTS
#   You may want to add '--listen' to have libvirtd listen for tcp/ip
#   connections if you want to use libvirt for remote control. Please
#   consult 'libvirtd --help' for more options.
#LIBVIRTD_OPTS="--listen"

# LIBVIRTD_KVM_SHUTDOWN
#   controls the behavior for kvm guests on daemon shutdown
#
# Valid options:
# * shutdown
#   - Sends an ACPI shutdown (think when you tap the power button on your
#     machine and it begins a graceful shutdown). If your VM ignores this,
#     it will have the power yanked out from under it in
#     LIBVIRTD_KVM_SHUTDOWN_MAXWAIT seconds.
# * managedsave
#   - Performs a state save external to the VM. qemu-kvm will stop stop the
#     CPU and save off all state to a separate file. When the machine is
#     started again, it will resume like nothing ever happened. This is
#     guarenteed to always successfully stop your machine and restart it.
#     However it may take some time to finish.
# * none
#   - No attempts will be made to stop any VMs. If you are restarting your
#     machine the qemu-kvm process will be simply killed, which may result
#     in your VMs having disk corruption.
LIBVIRTD_KVM_SHUTDOWN="managedsave"

# LIBVIRTD_KVM_SHUTDOWN_MAXWAIT
#   timeout in seconds until stopping libvirtd and "pulling the plug" on
#   the remaining VM's still in a running state
LIBVIRTD_KVM_SHUTDOWN_MAXWAIT="500"

# LIBVIRTD_KVM_RESTART
#   controls the behavior for kvm guests on daemon restart
#
# Valid options:
# * <empty>
#   - apply the same policy on daemon restart as defined by
#     LIBVIRTD_KVM_SHUTDOWN for the shutdown
# * shutdown
# * managedsave
# * none
#   - as defined for LIBVIRTD_KVM_SHUTDOWN
LIBVIRTD_KVM_RESTART=""

# LIBVIRTD_KVM_NET_SHUTDOWN
#   If libvirtd created networks for you (e.g. NATed networks) then this
#   init script will shut them down for you if this is set to 'yes'.
#   Otherwise, the networks will be left running once libvirt is shutdown.
#   For this option to be useful you must have enabled the 'virt-network'
#   USE flag and have had libvirt create a NATed network for you. Valid
#   values: 'yes' or 'no'
LIBVIRTD_KVM_NET_SHUTDOWN="yes"

# LIBVIRTD_KVM_NET_RESTART
# Valid options:
# * <empty>
#   - apply the same policy on daemon restart as defined by
#     LIBVIRTD_KVM_NET_SHUTDOWN for the shutdown
# * yes
# * no
#   - as defined for LIBVIRTD_KVM_NET_SHUTDOWN
LIBVIRTD_KVM_NET_RESTART=""