523f488036
I noticed this when debugging some grenade issues failures. An include of grenade/functions stores the current value of XTRACE (on) and disables xtrace for the rest of the import. We then include devstack's "functions" library, which now overwrites the stored value of XTRACE the current state; i.e. disabled. When it finishes it restores the prior state (disabled), and then grenade restores the same value of XTRACE (disabled). The result is that xtrace is incorrectly disabled until the next time it just happens to be turned on. The solution is to name-space the store of the current-value of xtrace so when we finish sourcing a file, we always restore the tracing value to what it was when we entered. Some files had already discovered this. In general there is inconsistency around the setting of the variable, and a lot of obvious copy-paste. This brings consistency across all files by using _XTRACE_* prefixes for the sotre/restore of tracing values. Change-Id: Iba7739eada5711d9c269cb4127fa712e9f961695
113 lines
3.4 KiB
Bash
113 lines
3.4 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 "none"
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iniset $NOVA_CONF libvirt use_usb_tablet "False"
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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 $NOVA_CONF DEFAULT compute_driver "libvirt.LibvirtDriver"
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LIBVIRT_FIREWALL_DRIVER=${LIBVIRT_FIREWALL_DRIVER:-"nova.virt.libvirt.firewall.IptablesFirewallDriver"}
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iniset $NOVA_CONF DEFAULT firewall_driver "$LIBVIRT_FIREWALL_DRIVER"
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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 DEFAULT 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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# arm64 architecture currently does not support graphical consoles.
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iniset $NOVA_CONF DEFAULT vnc_enabled "false"
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fi
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# File injection is being disabled by default in the near future -
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# disable it here for now to avoid surprises later.
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iniset $NOVA_CONF libvirt inject_partition '-2'
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if [[ "$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 DEFAULT vncserver_proxyclient_address $HOST_IP
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iniset $NOVA_CONF DEFAULT vncserver_listen $HOST_IP
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iniset $NOVA_CONF DEFAULT vnc_keymap
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fi
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}
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# install_nova_hypervisor() - Install external components
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function install_nova_hypervisor {
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install_libvirt
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# Install and configure **LXC** if specified. LXC is another approach to
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# splitting a system into many smaller parts. LXC uses cgroups and chroot
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# to simulate multiple systems.
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if [[ "$LIBVIRT_TYPE" == "lxc" ]]; then
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if is_ubuntu; then
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if [[ "$DISTRO" > natty ]]; then
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install_package cgroup-lite
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fi
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else
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### FIXME(dtroyer): figure this out
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echo "RPM-based cgroup not implemented yet"
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yum_install libcgroup-tools
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fi
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fi
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}
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# start_nova_hypervisor - Start any required external services
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function start_nova_hypervisor {
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# This function intentionally left blank
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:
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}
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# stop_nova_hypervisor - Stop any external services
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function stop_nova_hypervisor {
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# This function intentionally left blank
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:
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}
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# Restore xtrace
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$_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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