devstack/lib/nova_plugins/hypervisor-libvirt
Dirk Mueller 0ae942b41c Only install python-libguestfs bindings when needed
Currently those bindings are missing from SLES12, and since
they're not actually used unless file injection is enabled
(which is not by default), only conditionally depend on it.

Change-Id: I79a8d8ac7ad2fbd7d2fce696821d130218e43e03
2015-06-23 12:22:21 +02:00

128 lines
3.9 KiB
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#!/bin/bash
#
# lib/nova_plugins/hypervisor-libvirt
# Configure the libvirt hypervisor
# Enable with:
# VIRT_DRIVER=libvirt
# Dependencies:
# ``functions`` file
# ``nova`` configuration
# install_nova_hypervisor - install any external requirements
# configure_nova_hypervisor - make configuration changes, including those to other services
# start_nova_hypervisor - start any external services
# stop_nova_hypervisor - stop any external services
# cleanup_nova_hypervisor - remove transient data and cache
# Save trace setting
MY_XTRACE=$(set +o | grep xtrace)
set +o xtrace
source $TOP_DIR/lib/nova_plugins/functions-libvirt
# Defaults
# --------
# File injection is disabled by default in Nova. This will turn it back on.
ENABLE_FILE_INJECTION=$(trueorfalse False ENABLE_FILE_INJECTION)
# Entry Points
# ------------
# clean_nova_hypervisor - Clean up an installation
function cleanup_nova_hypervisor {
# This function intentionally left blank
:
}
# configure_nova_hypervisor - Set config files, create data dirs, etc
function configure_nova_hypervisor {
configure_libvirt
iniset $NOVA_CONF libvirt virt_type "$LIBVIRT_TYPE"
iniset $NOVA_CONF libvirt cpu_mode "none"
iniset $NOVA_CONF libvirt use_usb_tablet "False"
iniset $NOVA_CONF libvirt live_migration_uri "qemu+ssh://$STACK_USER@%s/system"
iniset $NOVA_CONF DEFAULT default_ephemeral_format "ext4"
iniset $NOVA_CONF DEFAULT compute_driver "libvirt.LibvirtDriver"
LIBVIRT_FIREWALL_DRIVER=${LIBVIRT_FIREWALL_DRIVER:-"nova.virt.libvirt.firewall.IptablesFirewallDriver"}
iniset $NOVA_CONF DEFAULT firewall_driver "$LIBVIRT_FIREWALL_DRIVER"
# Power architecture currently does not support graphical consoles.
if is_arch "ppc64"; then
iniset $NOVA_CONF DEFAULT vnc_enabled "false"
fi
# arm64-specific configuration
if is_arch "aarch64"; then
# arm64 architecture currently does not support graphical consoles.
iniset $NOVA_CONF DEFAULT vnc_enabled "false"
fi
if [[ "$ENABLE_FILE_INJECTION" = "True" ]] ; then
# When libguestfs is available for file injection, enable using
# libguestfs to inspect the image and figure out the proper
# partition to inject into.
iniset $NOVA_CONF libvirt inject_partition '-1'
iniset $NOVA_CONF libvirt inject_key 'true'
else
# File injection is being disabled by default in the near future -
# disable it here for now to avoid surprises later.
iniset $NOVA_CONF libvirt inject_partition '-2'
fi
if [[ "$LIBVIRT_TYPE" = "parallels" ]]; then
iniset $NOVA_CONF libvirt connection_uri "parallels+unix:///system"
iniset $NOVA_CONF libvirt images_type "ploop"
fi
}
# install_nova_hypervisor() - Install external components
function install_nova_hypervisor {
install_libvirt
# Install and configure **LXC** if specified. LXC is another approach to
# splitting a system into many smaller parts. LXC uses cgroups and chroot
# to simulate multiple systems.
if [[ "$LIBVIRT_TYPE" == "lxc" ]]; then
if is_ubuntu; then
if [[ "$DISTRO" > natty ]]; then
install_package cgroup-lite
fi
else
### FIXME(dtroyer): figure this out
echo "RPM-based cgroup not implemented yet"
yum_install libcgroup-tools
fi
fi
if [[ "$ENABLE_FILE_INJECTION" = "True" ]] ; then
if is_ubuntu; then
install_package python-guestfs
elif is_fedora || is_suse; then
install_package python-libguestfs
fi
fi
}
# start_nova_hypervisor - Start any required external services
function start_nova_hypervisor {
# This function intentionally left blank
:
}
# stop_nova_hypervisor - Stop any external services
function stop_nova_hypervisor {
# This function intentionally left blank
:
}
# Restore xtrace
$MY_XTRACE
# Local variables:
# mode: shell-script
# End: