145 lines
4.8 KiB
Bash
145 lines
4.8 KiB
Bash
#!/bin/bash
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#
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# lib/nova_plugins/hypervisor-libvirt
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# Configure the libvirt hypervisor
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# Enable with:
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# VIRT_DRIVER=libvirt
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# Dependencies:
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# ``functions`` file
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# ``nova`` configuration
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# install_nova_hypervisor - install any external requirements
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# configure_nova_hypervisor - make configuration changes, including those to other services
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# start_nova_hypervisor - start any external services
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# stop_nova_hypervisor - stop any external services
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# cleanup_nova_hypervisor - remove transient data and cache
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# Save trace setting
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_XTRACE_NOVA_LIBVIRT=$(set +o | grep xtrace)
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set +o xtrace
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source $TOP_DIR/lib/nova_plugins/functions-libvirt
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# Defaults
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# --------
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# Entry Points
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# ------------
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# clean_nova_hypervisor - Clean up an installation
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function cleanup_nova_hypervisor {
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# This function intentionally left blank
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:
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}
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# configure_nova_hypervisor - Set config files, create data dirs, etc
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function configure_nova_hypervisor {
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configure_libvirt
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iniset $NOVA_CONF libvirt virt_type "$LIBVIRT_TYPE"
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iniset $NOVA_CONF libvirt cpu_mode "$LIBVIRT_CPU_MODE"
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if [ "$LIBVIRT_CPU_MODE" == "custom" ] ; then
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iniset $NOVA_CONF libvirt cpu_model "$LIBVIRT_CPU_MODEL"
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fi
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# Do not enable USB tablet input devices to avoid QEMU CPU overhead.
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iniset $NOVA_CONF DEFAULT pointer_model "ps2mouse"
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iniset $NOVA_CONF libvirt live_migration_uri "qemu+ssh://$STACK_USER@%s/system"
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iniset $NOVA_CONF DEFAULT default_ephemeral_format "ext4"
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iniset $NOVA_CONF DEFAULT compute_driver "libvirt.LibvirtDriver"
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# Power architecture currently does not support graphical consoles.
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if is_arch "ppc64"; then
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iniset $NOVA_CONF vnc enabled "false"
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fi
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# arm64-specific configuration
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if is_arch "aarch64"; then
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iniset $NOVA_CONF libvirt cpu_mode "host-passthrough"
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fi
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if isset ENABLE_FILE_INJECTION; then
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if [ "$ENABLE_FILE_INJECTION" == "True" ]; then
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# -1 means use libguestfs to inspect the guest OS image for the
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# root partition to use for file injection.
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iniset $NOVA_CONF libvirt inject_partition '-1'
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fi
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fi
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if [[ "$LIBVIRT_TYPE" = "parallels" ]]; then
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iniset $NOVA_CONF libvirt connection_uri "parallels+unix:///system"
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iniset $NOVA_CONF libvirt images_type "ploop"
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iniset $NOVA_CONF DEFAULT force_raw_images "False"
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iniset $NOVA_CONF vnc server_proxyclient_address $HOST_IP
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iniset $NOVA_CONF vnc server_listen $HOST_IP
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iniset $NOVA_CONF vnc keymap
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elif [[ "$NOVA_BACKEND" == "LVM" ]]; then
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iniset $NOVA_CONF libvirt images_type "lvm"
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iniset $NOVA_CONF libvirt images_volume_group $DEFAULT_VOLUME_GROUP_NAME
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if isset LVM_VOLUME_CLEAR; then
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iniset $NOVA_CONF libvirt volume_clear "$LVM_VOLUME_CLEAR"
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fi
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fi
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}
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# install_nova_hypervisor() - Install external components
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function install_nova_hypervisor {
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install_libvirt
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# Install and configure **LXC** if specified. LXC is another approach to
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# splitting a system into many smaller parts. LXC uses cgroups and chroot
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# to simulate multiple systems.
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if [[ "$LIBVIRT_TYPE" == "lxc" ]]; then
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if is_ubuntu; then
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if [[ "$DISTRO" > natty ]]; then
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install_package cgroup-lite
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fi
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else
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### FIXME(dtroyer): figure this out
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echo "RPM-based cgroup not implemented yet"
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yum_install libcgroup-tools
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fi
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fi
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if [[ "$ENABLE_FILE_INJECTION" == "True" ]] ; then
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if is_ubuntu; then
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install_package python3-guestfs
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# NOTE(andreaf) Ubuntu kernel can only be read by root, which breaks libguestfs:
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# https://bugs.launchpad.net/ubuntu/+source/linux/+bug/759725)
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INSTALLED_KERNELS="$(ls /boot/vmlinuz-*)"
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for kernel in $INSTALLED_KERNELS; do
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STAT_OVERRIDE="root root 644 ${kernel}"
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# unstack won't remove the statoverride, so make this idempotent
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if [[ ! $(dpkg-statoverride --list | grep "$STAT_OVERRIDE") ]]; then
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sudo dpkg-statoverride --add --update $STAT_OVERRIDE
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fi
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done
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elif is_suse; then
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# Workaround for missing dependencies in python-libguestfs
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install_package python-libguestfs guestfs-data augeas augeas-lenses
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elif is_fedora; then
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install_package python3-libguestfs
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fi
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fi
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}
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# start_nova_hypervisor - Start any required external services
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function start_nova_hypervisor {
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# This function intentionally left blank
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:
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}
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# stop_nova_hypervisor - Stop any external services
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function stop_nova_hypervisor {
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# This function intentionally left blank
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:
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}
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# Restore xtrace
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$_XTRACE_NOVA_LIBVIRT
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# Local variables:
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# mode: shell-script
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# End:
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