138 lines
5.1 KiB
Bash
138 lines
5.1 KiB
Bash
#!/bin/bash
|
|
#
|
|
# lib/nova_plugins/functions-libvirt
|
|
# Common libvirt configuration functions
|
|
|
|
# Dependencies:
|
|
# ``functions`` file
|
|
# ``STACK_USER`` has to be defined
|
|
|
|
# Save trace setting
|
|
_XTRACE_NOVA_FN_LIBVIRT=$(set +o | grep xtrace)
|
|
set +o xtrace
|
|
|
|
# Defaults
|
|
# --------
|
|
|
|
# Turn on selective debug log filters for libvirt.
|
|
# (NOTE: Enabling this by default, because the log filters enabled in
|
|
# 'configure_libvirt' function further below are _selective_ and not
|
|
# extremely verbose.)
|
|
DEBUG_LIBVIRT=$(trueorfalse True DEBUG_LIBVIRT)
|
|
|
|
# Installs required distro-specific libvirt packages.
|
|
function install_libvirt {
|
|
if is_ubuntu; then
|
|
install_package qemu-system
|
|
install_package libvirt-bin libvirt-dev
|
|
pip_install_gr libvirt-python
|
|
if [[ "$EBTABLES_RACE_FIX" == "True" ]]; then
|
|
# Work around for bug #1501558. We can remove this once we
|
|
# get to a version of Ubuntu that has new enough libvirt.
|
|
TOP_DIR=$TOP_DIR $TOP_DIR/tools/install_ebtables_workaround.sh
|
|
fi
|
|
#pip_install_gr <there-si-no-guestfs-in-pypi>
|
|
elif is_fedora || is_suse; then
|
|
# On "KVM for IBM z Systems", kvm does not have its own package
|
|
if [[ ! ${DISTRO} =~ "kvmibm1" ]]; then
|
|
install_package kvm
|
|
fi
|
|
# there is a dependency issue with kvm (which is really just a
|
|
# wrapper to qemu-system-x86) that leaves some bios files out,
|
|
# so install qemu-kvm (which shouldn't strictly be needed, as
|
|
# everything has been merged into qemu-system-x86) to bring in
|
|
# the right packages. see
|
|
# https://bugzilla.redhat.com/show_bug.cgi?id=1235890
|
|
install_package qemu-kvm
|
|
install_package libvirt libvirt-devel
|
|
pip_install_gr libvirt-python
|
|
fi
|
|
}
|
|
|
|
# Configures the installed libvirt system so that is accessible by
|
|
# STACK_USER via qemu:///system with management capabilities.
|
|
function configure_libvirt {
|
|
if is_service_enabled neutron && is_neutron_ovs_base_plugin && ! sudo grep -q '^cgroup_device_acl' $QEMU_CONF; then
|
|
# Add /dev/net/tun to cgroup_device_acls, needed for type=ethernet interfaces
|
|
cat <<EOF | sudo tee -a $QEMU_CONF
|
|
cgroup_device_acl = [
|
|
"/dev/null", "/dev/full", "/dev/zero",
|
|
"/dev/random", "/dev/urandom",
|
|
"/dev/ptmx", "/dev/kvm", "/dev/kqemu",
|
|
"/dev/rtc", "/dev/hpet","/dev/net/tun",
|
|
"/dev/vfio/vfio",
|
|
]
|
|
EOF
|
|
fi
|
|
|
|
# Since the release of Debian Wheezy the libvirt init script is libvirtd
|
|
# and not libvirtd-bin anymore.
|
|
if is_ubuntu && [ ! -f /etc/init.d/libvirtd ]; then
|
|
LIBVIRT_DAEMON=libvirt-bin
|
|
else
|
|
LIBVIRT_DAEMON=libvirtd
|
|
fi
|
|
|
|
if is_fedora || is_suse; then
|
|
# Starting with fedora 18 and opensuse-12.3 enable stack-user to
|
|
# virsh -c qemu:///system by creating a policy-kit rule for
|
|
# stack-user using the new Javascript syntax
|
|
rules_dir=/etc/polkit-1/rules.d
|
|
sudo mkdir -p $rules_dir
|
|
cat <<EOF | sudo tee $rules_dir/50-libvirt-$STACK_USER.rules
|
|
polkit.addRule(function(action, subject) {
|
|
if (action.id == 'org.libvirt.unix.manage' &&
|
|
subject.user == '$STACK_USER') {
|
|
return polkit.Result.YES;
|
|
}
|
|
});
|
|
EOF
|
|
unset rules_dir
|
|
fi
|
|
|
|
# The user that nova runs as needs to be member of **libvirtd** group otherwise
|
|
# nova-compute will be unable to use libvirt.
|
|
if ! getent group $LIBVIRT_GROUP >/dev/null; then
|
|
sudo groupadd $LIBVIRT_GROUP
|
|
fi
|
|
add_user_to_group $STACK_USER $LIBVIRT_GROUP
|
|
|
|
# Enable server side traces for libvirtd
|
|
if [[ "$DEBUG_LIBVIRT" = "True" ]] ; then
|
|
if is_ubuntu; then
|
|
# Unexpectedly binary package builds in ubuntu get fully qualified
|
|
# source file paths, not relative paths. This screws with the matching
|
|
# of '1:libvirt' making everything turn on. So use libvirt.c for now.
|
|
# This will have to be re-visited when Ubuntu ships libvirt >= 1.2.3
|
|
local log_filters="1:libvirt.c 1:qemu 1:conf 1:security 3:object 3:event 3:json 3:file 1:util 1:cpu"
|
|
else
|
|
local log_filters="1:libvirt 1:qemu 1:conf 1:security 3:object 3:event 3:json 3:file 1:util 1:cpu"
|
|
fi
|
|
local log_outputs="1:file:/var/log/libvirt/libvirtd.log"
|
|
if ! sudo grep -q "^log_filters=\"$log_filters\"" /etc/libvirt/libvirtd.conf; then
|
|
echo "log_filters=\"$log_filters\"" | sudo tee -a /etc/libvirt/libvirtd.conf
|
|
fi
|
|
if ! sudo grep -q "^log_outputs=\"$log_outputs\"" /etc/libvirt/libvirtd.conf; then
|
|
echo "log_outputs=\"$log_outputs\"" | sudo tee -a /etc/libvirt/libvirtd.conf
|
|
fi
|
|
fi
|
|
|
|
# Service needs to be started on redhat/fedora -- do a restart for
|
|
# sanity after fiddling the config.
|
|
restart_service $LIBVIRT_DAEMON
|
|
|
|
# Restart virtlogd companion service to ensure it is running properly
|
|
# https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1577455
|
|
# https://bugzilla.redhat.com/show_bug.cgi?id=1290357
|
|
# (not all platforms have it; libvirt 1.3+ only, thus the ignore)
|
|
restart_service virtlogd || true
|
|
}
|
|
|
|
|
|
# Restore xtrace
|
|
$_XTRACE_NOVA_FN_LIBVIRT
|
|
|
|
# Local variables:
|
|
# mode: shell-script
|
|
# End:
|