581 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			581 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
# lib/nova
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# Functions to control the configuration and operation of the **Nova** service
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# Dependencies:
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# ``functions`` file
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# ``DEST``, ``DATA_DIR``, ``STACK_USER`` must be defined
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# ``SERVICE_{TENANT_NAME|PASSWORD}`` must be defined
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# ``LIBVIRT_TYPE`` must be defined
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# ``INSTANCE_NAME_PREFIX``, ``VOLUME_NAME_PREFIX`` must be defined
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# ``KEYSTONE_TOKEN_FORMAT`` must be defined
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# ``stack.sh`` calls the entry points in this order:
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#
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# install_nova
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# configure_nova
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# create_nova_conf
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# init_nova
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# start_nova
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# stop_nova
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# cleanup_nova
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# Save trace setting
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XTRACE=$(set +o | grep xtrace)
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set +o xtrace
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# Defaults
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# --------
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# Set up default directories
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NOVA_DIR=$DEST/nova
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NOVACLIENT_DIR=$DEST/python-novaclient
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NOVA_STATE_PATH=${NOVA_STATE_PATH:=$DATA_DIR/nova}
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# INSTANCES_PATH is the previous name for this
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NOVA_INSTANCES_PATH=${NOVA_INSTANCES_PATH:=${INSTANCES_PATH:=$NOVA_STATE_PATH/instances}}
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NOVA_AUTH_CACHE_DIR=${NOVA_AUTH_CACHE_DIR:-/var/cache/nova}
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NOVA_CONF_DIR=/etc/nova
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NOVA_CONF=$NOVA_CONF_DIR/nova.conf
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NOVA_API_PASTE_INI=${NOVA_API_PASTE_INI:-$NOVA_CONF_DIR/api-paste.ini}
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# Public facing bits
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NOVA_SERVICE_HOST=${NOVA_SERVICE_HOST:-$SERVICE_HOST}
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NOVA_SERVICE_PORT=${NOVA_SERVICE_PORT:-8774}
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NOVA_SERVICE_PORT_INT=${NOVA_SERVICE_PORT_INT:-18774}
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NOVA_SERVICE_PROTOCOL=${NOVA_SERVICE_PROTOCOL:-$SERVICE_PROTOCOL}
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# Support entry points installation of console scripts
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if [[ -d $NOVA_DIR/bin ]]; then
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    NOVA_BIN_DIR=$NOVA_DIR/bin
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else
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    NOVA_BIN_DIR=$(get_python_exec_prefix)
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fi
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# Set the paths of certain binaries
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NOVA_ROOTWRAP=$(get_rootwrap_location nova)
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# Allow rate limiting to be turned off for testing, like for Tempest
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# NOTE: Set API_RATE_LIMIT="False" to turn OFF rate limiting
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API_RATE_LIMIT=${API_RATE_LIMIT:-"True"}
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# Nova supports pluggable schedulers.  The default ``FilterScheduler``
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# should work in most cases.
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SCHEDULER=${SCHEDULER:-nova.scheduler.filter_scheduler.FilterScheduler}
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QEMU_CONF=/etc/libvirt/qemu.conf
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# Entry Points
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# ------------
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function add_nova_opt {
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    echo "$1" >>$NOVA_CONF
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}
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# Helper to clean iptables rules
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function clean_iptables() {
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    # Delete rules
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    sudo iptables -S -v | sed "s/-c [0-9]* [0-9]* //g" | grep "nova" | grep "\-A" |  sed "s/-A/-D/g" | awk '{print "sudo iptables",$0}' | bash
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    # Delete nat rules
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    sudo iptables -S -v -t nat | sed "s/-c [0-9]* [0-9]* //g" | grep "nova" |  grep "\-A" | sed "s/-A/-D/g" | awk '{print "sudo iptables -t nat",$0}' | bash
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    # Delete chains
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    sudo iptables -S -v | sed "s/-c [0-9]* [0-9]* //g" | grep "nova" | grep "\-N" |  sed "s/-N/-X/g" | awk '{print "sudo iptables",$0}' | bash
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    # Delete nat chains
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    sudo iptables -S -v -t nat | sed "s/-c [0-9]* [0-9]* //g" | grep "nova" |  grep "\-N" | sed "s/-N/-X/g" | awk '{print "sudo iptables -t nat",$0}' | bash
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}
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# cleanup_nova() - Remove residual data files, anything left over from previous
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# runs that a clean run would need to clean up
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function cleanup_nova() {
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    if is_service_enabled n-cpu; then
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        # Clean iptables from previous runs
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        clean_iptables
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        # Destroy old instances
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        instances=`sudo virsh list --all | grep $INSTANCE_NAME_PREFIX | sed "s/.*\($INSTANCE_NAME_PREFIX[0-9a-fA-F]*\).*/\1/g"`
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        if [ ! "$instances" = "" ]; then
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            echo $instances | xargs -n1 sudo virsh destroy || true
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            echo $instances | xargs -n1 sudo virsh undefine || true
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        fi
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        # Logout and delete iscsi sessions
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        sudo iscsiadm --mode node | grep $VOLUME_NAME_PREFIX | cut -d " " -f2 | xargs sudo iscsiadm --mode node --logout || true
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        sudo iscsiadm --mode node | grep $VOLUME_NAME_PREFIX | cut -d " " -f2 | sudo iscsiadm --mode node --op delete || true
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        # Clean out the instances directory.
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        sudo rm -rf $NOVA_INSTANCES_PATH/*
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    fi
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}
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# configure_novaclient() - Set config files, create data dirs, etc
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function configure_novaclient() {
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    setup_develop $NOVACLIENT_DIR
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}
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# configure_nova_rootwrap() - configure Nova's rootwrap
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function configure_nova_rootwrap() {
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    # Deploy new rootwrap filters files (owned by root).
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    # Wipe any existing rootwrap.d files first
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    if [[ -d $NOVA_CONF_DIR/rootwrap.d ]]; then
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        sudo rm -rf $NOVA_CONF_DIR/rootwrap.d
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    fi
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    # Deploy filters to /etc/nova/rootwrap.d
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    sudo mkdir -m 755 $NOVA_CONF_DIR/rootwrap.d
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    sudo cp $NOVA_DIR/etc/nova/rootwrap.d/*.filters $NOVA_CONF_DIR/rootwrap.d
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    sudo chown -R root:root $NOVA_CONF_DIR/rootwrap.d
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    sudo chmod 644 $NOVA_CONF_DIR/rootwrap.d/*
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    # Set up rootwrap.conf, pointing to /etc/nova/rootwrap.d
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    sudo cp $NOVA_DIR/etc/nova/rootwrap.conf $NOVA_CONF_DIR/
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    sudo sed -e "s:^filters_path=.*$:filters_path=$NOVA_CONF_DIR/rootwrap.d:" -i $NOVA_CONF_DIR/rootwrap.conf
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    sudo chown root:root $NOVA_CONF_DIR/rootwrap.conf
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    sudo chmod 0644 $NOVA_CONF_DIR/rootwrap.conf
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    # Specify rootwrap.conf as first parameter to nova-rootwrap
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    ROOTWRAP_SUDOER_CMD="$NOVA_ROOTWRAP $NOVA_CONF_DIR/rootwrap.conf *"
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    # Set up the rootwrap sudoers for nova
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    TEMPFILE=`mktemp`
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    echo "$USER ALL=(root) NOPASSWD: $ROOTWRAP_SUDOER_CMD" >$TEMPFILE
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    chmod 0440 $TEMPFILE
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    sudo chown root:root $TEMPFILE
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    sudo mv $TEMPFILE /etc/sudoers.d/nova-rootwrap
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}
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# configure_nova() - Set config files, create data dirs, etc
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function configure_nova() {
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    setup_develop $NOVA_DIR
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    # Put config files in ``/etc/nova`` for everyone to find
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    if [[ ! -d $NOVA_CONF_DIR ]]; then
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        sudo mkdir -p $NOVA_CONF_DIR
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    fi
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    sudo chown $STACK_USER $NOVA_CONF_DIR
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    cp -p $NOVA_DIR/etc/nova/policy.json $NOVA_CONF_DIR
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    configure_nova_rootwrap
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    if is_service_enabled n-api; then
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        # Use the sample http middleware configuration supplied in the
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        # Nova sources.  This paste config adds the configuration required
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        # for Nova to validate Keystone tokens.
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        # Remove legacy paste config if present
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        rm -f $NOVA_DIR/bin/nova-api-paste.ini
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        # Get the sample configuration file in place
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        cp $NOVA_DIR/etc/nova/api-paste.ini $NOVA_CONF_DIR
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        iniset $NOVA_API_PASTE_INI filter:authtoken auth_host $SERVICE_HOST
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        if is_service_enabled tls-proxy; then
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            iniset $NOVA_API_PASTE_INI filter:authtoken auth_protocol $SERVICE_PROTOCOL
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        fi
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        iniset $NOVA_API_PASTE_INI filter:authtoken admin_tenant_name $SERVICE_TENANT_NAME
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        iniset $NOVA_API_PASTE_INI filter:authtoken admin_user nova
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        iniset $NOVA_API_PASTE_INI filter:authtoken admin_password $SERVICE_PASSWORD
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    fi
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    iniset $NOVA_API_PASTE_INI filter:authtoken signing_dir $NOVA_AUTH_CACHE_DIR
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    if is_service_enabled n-cpu; then
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        # Force IP forwarding on, just on case
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        sudo sysctl -w net.ipv4.ip_forward=1
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        # Attempt to load modules: network block device - used to manage qcow images
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        sudo modprobe nbd || true
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        # Check for kvm (hardware based virtualization).  If unable to initialize
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        # kvm, we drop back to the slower emulation mode (qemu).  Note: many systems
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        # come with hardware virtualization disabled in BIOS.
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        if [[ "$LIBVIRT_TYPE" == "kvm" ]]; then
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            sudo modprobe kvm || true
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            if [ ! -e /dev/kvm ]; then
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                echo "WARNING: Switching to QEMU"
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                LIBVIRT_TYPE=qemu
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                if which selinuxenabled 2>&1 > /dev/null && selinuxenabled; then
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                    # https://bugzilla.redhat.com/show_bug.cgi?id=753589
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                    sudo setsebool virt_use_execmem on
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                fi
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            fi
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        fi
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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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                    cgline="none /cgroup cgroup cpuacct,memory,devices,cpu,freezer,blkio 0 0"
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                    sudo mkdir -p /cgroup
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                    if ! grep -q cgroup /etc/fstab; then
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                        echo "$cgline" | sudo tee -a /etc/fstab
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                    fi
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                    if ! mount -n | grep -q cgroup; then
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                        sudo mount /cgroup
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                    fi
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                fi
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            fi
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        fi
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        # Prepare directories and packages for baremetal driver
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        if is_baremetal; then
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            configure_baremetal_nova_dirs
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        fi
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        if is_service_enabled quantum && is_quantum_ovs_base_plugin && ! sudo grep -q '^cgroup_device_acl' $QEMU_CONF ; then
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            # Add /dev/net/tun to cgroup_device_acls, needed for type=ethernet interfaces
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            cat <<EOF | sudo tee -a $QEMU_CONF
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cgroup_device_acl = [
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    "/dev/null", "/dev/full", "/dev/zero",
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    "/dev/random", "/dev/urandom",
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    "/dev/ptmx", "/dev/kvm", "/dev/kqemu",
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    "/dev/rtc", "/dev/hpet","/dev/net/tun",
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]
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EOF
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        fi
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        if is_ubuntu; then
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            LIBVIRT_DAEMON=libvirt-bin
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        else
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            LIBVIRT_DAEMON=libvirtd
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        fi
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        if is_fedora; then
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            # Starting with fedora 18 enable stack-user to virsh -c qemu:///system
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            # by creating a policy-kit rule for stack-user
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            if [[ "$os_RELEASE" -ge "18" ]]; then
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                rules_dir=/etc/polkit-1/rules.d
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                sudo mkdir -p $rules_dir
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                sudo bash -c "cat <<EOF > $rules_dir/50-libvirt-$STACK_USER.rules
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polkit.addRule(function(action, subject) {
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     if (action.id == 'org.libvirt.unix.manage' &&
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         subject.user == '"$STACK_USER"') {
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         return polkit.Result.YES;
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     }
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});
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EOF"
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                unset rules_dir
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            else
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                sudo bash -c 'cat <<EOF >/etc/polkit-1/localauthority/50-local.d/50-libvirt-remote-access.pkla
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[libvirt Management Access]
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Identity=unix-group:libvirtd
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Action=org.libvirt.unix.manage
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ResultAny=yes
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ResultInactive=yes
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ResultActive=yes
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EOF'
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            fi
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        elif is_suse; then
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            # Work around the fact that polkit-default-privs overrules pklas
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            # with 'unix-group:$group'.
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            sudo bash -c "cat <<EOF >/etc/polkit-1/localauthority/50-local.d/50-libvirt-remote-access.pkla
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[libvirt Management Access]
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Identity=unix-user:$USER
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Action=org.libvirt.unix.manage
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ResultAny=yes
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ResultInactive=yes
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ResultActive=yes
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EOF"
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        fi
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        # The user that nova runs as needs to be member of **libvirtd** group otherwise
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        # nova-compute will be unable to use libvirt.
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        if ! getent group libvirtd >/dev/null; then
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            sudo groupadd libvirtd
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        fi
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        add_user_to_group $STACK_USER libvirtd
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        # libvirt detects various settings on startup, as we potentially changed
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        # the system configuration (modules, filesystems), we need to restart
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        # libvirt to detect those changes.
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        restart_service $LIBVIRT_DAEMON
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        # Instance Storage
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        # ----------------
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        # Nova stores each instance in its own directory.
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        mkdir -p $NOVA_INSTANCES_PATH
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        # You can specify a different disk to be mounted and used for backing the
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        # virtual machines.  If there is a partition labeled nova-instances we
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        # mount it (ext filesystems can be labeled via e2label).
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        if [ -L /dev/disk/by-label/nova-instances ]; then
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            if ! mount -n | grep -q $NOVA_INSTANCES_PATH; then
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                sudo mount -L nova-instances $NOVA_INSTANCES_PATH
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                sudo chown -R $STACK_USER $NOVA_INSTANCES_PATH
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            fi
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        fi
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        # Clean up old instances
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        cleanup_nova
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    fi
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}
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# create_nova_accounts() - Set up common required nova accounts
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# Tenant               User       Roles
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# ------------------------------------------------------------------
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# service              nova       admin, [ResellerAdmin (swift only)]
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# Migrated from keystone_data.sh
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create_nova_accounts() {
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    SERVICE_TENANT=$(keystone tenant-list | awk "/ $SERVICE_TENANT_NAME / { print \$2 }")
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    ADMIN_ROLE=$(keystone role-list | awk "/ admin / { print \$2 }")
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    # Nova
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    if [[ "$ENABLED_SERVICES" =~ "n-api" ]]; then
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        NOVA_USER=$(keystone user-create \
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            --name=nova \
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            --pass="$SERVICE_PASSWORD" \
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            --tenant_id $SERVICE_TENANT \
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            --email=nova@example.com \
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            | grep " id " | get_field 2)
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        keystone user-role-add \
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            --tenant_id $SERVICE_TENANT \
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            --user_id $NOVA_USER \
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            --role_id $ADMIN_ROLE
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        if [[ "$KEYSTONE_CATALOG_BACKEND" = 'sql' ]]; then
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            NOVA_SERVICE=$(keystone service-create \
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                --name=nova \
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                --type=compute \
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                --description="Nova Compute Service" \
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                | grep " id " | get_field 2)
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            keystone endpoint-create \
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                --region RegionOne \
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                --service_id $NOVA_SERVICE \
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                --publicurl "$NOVA_SERVICE_PROTOCOL://$NOVA_SERVICE_HOST:$NOVA_SERVICE_PORT/v2/\$(tenant_id)s" \
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                --adminurl "$NOVA_SERVICE_PROTOCOL://$NOVA_SERVICE_HOST:$NOVA_SERVICE_PORT/v2/\$(tenant_id)s" \
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                --internalurl "$NOVA_SERVICE_PROTOCOL://$NOVA_SERVICE_HOST:$NOVA_SERVICE_PORT/v2/\$(tenant_id)s"
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        fi
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    fi
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}
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# create_nova_conf() - Create a new nova.conf file
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function create_nova_conf() {
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    # Remove legacy ``nova.conf``
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    rm -f $NOVA_DIR/bin/nova.conf
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    # (Re)create ``nova.conf``
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    rm -f $NOVA_CONF
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    add_nova_opt "[DEFAULT]"
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    iniset $NOVA_CONF DEFAULT verbose "True"
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    iniset $NOVA_CONF DEFAULT debug "True"
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    iniset $NOVA_CONF DEFAULT auth_strategy "keystone"
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    iniset $NOVA_CONF DEFAULT allow_resize_to_same_host "True"
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    iniset $NOVA_CONF DEFAULT api_paste_config "$NOVA_API_PASTE_INI"
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    iniset $NOVA_CONF DEFAULT rootwrap_config "$NOVA_CONF_DIR/rootwrap.conf"
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    iniset $NOVA_CONF DEFAULT compute_scheduler_driver "$SCHEDULER"
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    iniset $NOVA_CONF DEFAULT dhcpbridge_flagfile "$NOVA_CONF"
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    iniset $NOVA_CONF DEFAULT force_dhcp_release "True"
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    iniset $NOVA_CONF DEFAULT fixed_range "$FIXED_RANGE"
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    iniset $NOVA_CONF DEFAULT default_floating_pool "$PUBLIC_NETWORK_NAME"
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    iniset $NOVA_CONF DEFAULT s3_host "$SERVICE_HOST"
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    iniset $NOVA_CONF DEFAULT s3_port "$S3_SERVICE_PORT"
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    iniset $NOVA_CONF DEFAULT osapi_compute_extension "nova.api.openstack.compute.contrib.standard_extensions"
 | 
						||
    iniset $NOVA_CONF DEFAULT my_ip "$HOST_IP"
 | 
						||
    local dburl
 | 
						||
    database_connection_url dburl nova
 | 
						||
    iniset $NOVA_CONF DEFAULT sql_connection "$dburl"
 | 
						||
    if is_baremetal; then
 | 
						||
        database_connection_url dburl nova_bm
 | 
						||
        iniset $NOVA_CONF baremetal sql_connection $dburl
 | 
						||
    fi
 | 
						||
    iniset $NOVA_CONF DEFAULT libvirt_type "$LIBVIRT_TYPE"
 | 
						||
    iniset $NOVA_CONF DEFAULT libvirt_cpu_mode "none"
 | 
						||
    iniset $NOVA_CONF DEFAULT instance_name_template "${INSTANCE_NAME_PREFIX}%08x"
 | 
						||
 | 
						||
    if is_service_enabled n-api; then
 | 
						||
        iniset $NOVA_CONF DEFAULT enabled_apis "$NOVA_ENABLED_APIS"
 | 
						||
        if is_service_enabled tls-proxy; then
 | 
						||
            # Set the service port for a proxy to take the original
 | 
						||
            iniset $NOVA_CONF DEFAULT osapi_compute_listen_port "$NOVA_SERVICE_PORT_INT"
 | 
						||
        fi
 | 
						||
    fi
 | 
						||
    if is_service_enabled cinder; then
 | 
						||
        iniset $NOVA_CONF DEFAULT volume_api_class "nova.volume.cinder.API"
 | 
						||
    fi
 | 
						||
    if [ -n "$NOVA_STATE_PATH" ]; then
 | 
						||
        iniset $NOVA_CONF DEFAULT state_path "$NOVA_STATE_PATH"
 | 
						||
        iniset $NOVA_CONF DEFAULT lock_path "$NOVA_STATE_PATH"
 | 
						||
    fi
 | 
						||
    if [ -n "$NOVA_INSTANCES_PATH" ]; then
 | 
						||
        iniset $NOVA_CONF DEFAULT instances_path "$NOVA_INSTANCES_PATH"
 | 
						||
    fi
 | 
						||
    if [ "$MULTI_HOST" != "False" ]; then
 | 
						||
        iniset $NOVA_CONF DEFAULT multi_host "True"
 | 
						||
        iniset $NOVA_CONF DEFAULT send_arp_for_ha "True"
 | 
						||
    fi
 | 
						||
    if [ "$SYSLOG" != "False" ]; then
 | 
						||
        iniset $NOVA_CONF DEFAULT use_syslog "True"
 | 
						||
    fi
 | 
						||
    if [ "$API_RATE_LIMIT" != "True" ]; then
 | 
						||
        iniset $NOVA_CONF DEFAULT api_rate_limit "False"
 | 
						||
    fi
 | 
						||
    if [ "$LOG_COLOR" == "True" ] && [ "$SYSLOG" == "False" ]; then
 | 
						||
        # Add color to logging output
 | 
						||
        iniset $NOVA_CONF DEFAULT logging_context_format_string "%(asctime)s.%(msecs)03d %(color)s%(levelname)s %(name)s [[01;36m%(request_id)s [00;36m%(user_name)s %(project_name)s%(color)s] [01;35m%(instance)s%(color)s%(message)s[00m"
 | 
						||
        iniset $NOVA_CONF DEFAULT logging_default_format_string "%(asctime)s.%(msecs)03d %(color)s%(levelname)s %(name)s [[00;36m-%(color)s] [01;35m%(instance)s%(color)s%(message)s[00m"
 | 
						||
        iniset $NOVA_CONF DEFAULT logging_debug_format_suffix "[00;33mfrom (pid=%(process)d) %(funcName)s %(pathname)s:%(lineno)d[00m"
 | 
						||
        iniset $NOVA_CONF DEFAULT logging_exception_prefix "%(color)s%(asctime)s.%(msecs)03d TRACE %(name)s [01;35m%(instance)s[00m"
 | 
						||
    else
 | 
						||
        # Show user_name and project_name instead of user_id and project_id
 | 
						||
        iniset $NOVA_CONF DEFAULT logging_context_format_string "%(asctime)s.%(msecs)03d %(levelname)s %(name)s [%(request_id)s %(user_name)s %(project_name)s] %(instance)s%(message)s"
 | 
						||
    fi
 | 
						||
    if is_service_enabled ceilometer; then
 | 
						||
        iniset $NOVA_CONF DEFAULT instance_usage_audit "True"
 | 
						||
        iniset $NOVA_CONF DEFAULT instance_usage_audit_period "hour"
 | 
						||
        iniset $NOVA_CONF DEFAULT notification_driver "nova.openstack.common.notifier.rpc_notifier"
 | 
						||
        iniset $NOVA_CONF DEFAULT notification_driver "ceilometer.compute.nova_notifier"
 | 
						||
    fi
 | 
						||
 | 
						||
 | 
						||
    # Provide some transition from ``EXTRA_FLAGS`` to ``EXTRA_OPTS``
 | 
						||
    if [[ -z "$EXTRA_OPTS" && -n "$EXTRA_FLAGS" ]]; then
 | 
						||
        EXTRA_OPTS=$EXTRA_FLAGS
 | 
						||
    fi
 | 
						||
 | 
						||
    # Define extra nova conf flags by defining the array ``EXTRA_OPTS``.
 | 
						||
    # For Example: ``EXTRA_OPTS=(foo=true bar=2)``
 | 
						||
    for I in "${EXTRA_OPTS[@]}"; do
 | 
						||
        # Replace the first '=' with ' ' for iniset syntax
 | 
						||
        iniset $NOVA_CONF DEFAULT ${I/=/ }
 | 
						||
    done
 | 
						||
}
 | 
						||
 | 
						||
# create_nova_cache_dir() - Part of the init_nova() process
 | 
						||
function create_nova_cache_dir() {
 | 
						||
    # Create cache dir
 | 
						||
    sudo mkdir -p $NOVA_AUTH_CACHE_DIR
 | 
						||
    sudo chown $STACK_USER $NOVA_AUTH_CACHE_DIR
 | 
						||
    rm -f $NOVA_AUTH_CACHE_DIR/*
 | 
						||
}
 | 
						||
 | 
						||
function create_nova_conf_nova_network() {
 | 
						||
    iniset $NOVA_CONF DEFAULT network_manager "nova.network.manager.$NET_MAN"
 | 
						||
    iniset $NOVA_CONF DEFAULT public_interface "$PUBLIC_INTERFACE"
 | 
						||
    iniset $NOVA_CONF DEFAULT vlan_interface "$VLAN_INTERFACE"
 | 
						||
    iniset $NOVA_CONF DEFAULT flat_network_bridge "$FLAT_NETWORK_BRIDGE"
 | 
						||
    if [ -n "$FLAT_INTERFACE" ]; then
 | 
						||
        iniset $NOVA_CONF DEFAULT flat_interface "$FLAT_INTERFACE"
 | 
						||
    fi
 | 
						||
}
 | 
						||
 | 
						||
# create_nova_keys_dir() - Part of the init_nova() process
 | 
						||
function create_nova_keys_dir() {
 | 
						||
    # Create keys dir
 | 
						||
    sudo mkdir -p ${NOVA_STATE_PATH}/keys
 | 
						||
    sudo chown -R $STACK_USER ${NOVA_STATE_PATH}
 | 
						||
}
 | 
						||
 | 
						||
# init_nova() - Initialize databases, etc.
 | 
						||
function init_nova() {
 | 
						||
    # All nova components talk to a central database.
 | 
						||
    # Only do this step once on the API node for an entire cluster.
 | 
						||
    if is_service_enabled $DATABASE_BACKENDS && is_service_enabled n-api; then
 | 
						||
        # (Re)create nova database
 | 
						||
        # Explicitly use latin1: to avoid lp#829209, nova expects the database to
 | 
						||
        # use latin1 by default, and then upgrades the database to utf8 (see the
 | 
						||
        # 082_essex.py in nova)
 | 
						||
        recreate_database nova latin1
 | 
						||
 | 
						||
        # Migrate nova database
 | 
						||
        $NOVA_BIN_DIR/nova-manage db sync
 | 
						||
 | 
						||
        # (Re)create nova baremetal database
 | 
						||
        if is_baremetal; then
 | 
						||
            recreate_database nova_bm latin1
 | 
						||
            $NOVA_BIN_DIR/nova-baremetal-manage db sync
 | 
						||
        fi
 | 
						||
    fi
 | 
						||
 | 
						||
    create_nova_cache_dir
 | 
						||
    create_nova_keys_dir
 | 
						||
}
 | 
						||
 | 
						||
# install_novaclient() - Collect source and prepare
 | 
						||
function install_novaclient() {
 | 
						||
    git_clone $NOVACLIENT_REPO $NOVACLIENT_DIR $NOVACLIENT_BRANCH
 | 
						||
}
 | 
						||
 | 
						||
# install_nova() - Collect source and prepare
 | 
						||
function install_nova() {
 | 
						||
    if is_service_enabled n-cpu; then
 | 
						||
        if is_ubuntu; then
 | 
						||
            install_package libvirt-bin
 | 
						||
        elif is_fedora || is_suse; then
 | 
						||
            install_package libvirt
 | 
						||
        else
 | 
						||
            exit_distro_not_supported "libvirt installation"
 | 
						||
        fi
 | 
						||
 | 
						||
        # Install and configure **LXC** if specified.  LXC is another approach to
 | 
						||
        # splitting a system into many smaller parts.  LXC uses cgroups and chroot
 | 
						||
        # to simulate multiple systems.
 | 
						||
        if [[ "$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
 | 
						||
    fi
 | 
						||
 | 
						||
    git_clone $NOVA_REPO $NOVA_DIR $NOVA_BRANCH
 | 
						||
}
 | 
						||
 | 
						||
# start_nova_api() - Start the API process ahead of other things
 | 
						||
function start_nova_api() {
 | 
						||
    # Get right service port for testing
 | 
						||
    local service_port=$NOVA_SERVICE_PORT
 | 
						||
    if is_service_enabled tls-proxy; then
 | 
						||
        service_port=$NOVA_SERVICE_PORT_INT
 | 
						||
    fi
 | 
						||
 | 
						||
    screen_it n-api "cd $NOVA_DIR && $NOVA_BIN_DIR/nova-api"
 | 
						||
    echo "Waiting for nova-api to start..."
 | 
						||
    if ! wait_for_service $SERVICE_TIMEOUT http://$SERVICE_HOST:$service_port; then
 | 
						||
      echo "nova-api did not start"
 | 
						||
      exit 1
 | 
						||
    fi
 | 
						||
 | 
						||
    # Start proxies if enabled
 | 
						||
    if is_service_enabled tls-proxy; then
 | 
						||
        start_tls_proxy '*' $NOVA_SERVICE_PORT $NOVA_SERVICE_HOST $NOVA_SERVICE_PORT_INT &
 | 
						||
    fi
 | 
						||
}
 | 
						||
 | 
						||
# start_nova() - Start running processes, including screen
 | 
						||
function start_nova() {
 | 
						||
    # The group **libvirtd** is added to the current user in this script.
 | 
						||
    # Use 'sg' to execute nova-compute as a member of the **libvirtd** group.
 | 
						||
    # ``screen_it`` checks ``is_service_enabled``, it is not needed here
 | 
						||
    screen_it n-cond "cd $NOVA_DIR && $NOVA_BIN_DIR/nova-conductor"
 | 
						||
    screen_it n-cpu "cd $NOVA_DIR && sg libvirtd $NOVA_BIN_DIR/nova-compute"
 | 
						||
    screen_it n-crt "cd $NOVA_DIR && $NOVA_BIN_DIR/nova-cert"
 | 
						||
    screen_it n-net "cd $NOVA_DIR && $NOVA_BIN_DIR/nova-network"
 | 
						||
    screen_it n-sch "cd $NOVA_DIR && $NOVA_BIN_DIR/nova-scheduler"
 | 
						||
    screen_it n-novnc "cd $NOVA_DIR && $NOVA_BIN_DIR/nova-novncproxy --config-file $NOVA_CONF --web $NOVNC_DIR"
 | 
						||
    screen_it n-xvnc "cd $NOVA_DIR && $NOVA_BIN_DIR/nova-xvpvncproxy --config-file $NOVA_CONF"
 | 
						||
    screen_it n-spice "cd $NOVA_DIR && $NOVA_BIN_DIR/nova-spicehtml5proxy --config-file $NOVA_CONF --web $SPICE_DIR"
 | 
						||
    screen_it n-cauth "cd $NOVA_DIR && $NOVA_BIN_DIR/nova-consoleauth"
 | 
						||
}
 | 
						||
 | 
						||
# stop_nova() - Stop running processes (non-screen)
 | 
						||
function stop_nova() {
 | 
						||
    # Kill the nova screen windows
 | 
						||
    for serv in n-api n-cpu n-crt n-net n-sch n-novnc n-xvnc n-cauth n-cond n-spice; do
 | 
						||
        screen -S $SCREEN_NAME -p $serv -X kill
 | 
						||
    done
 | 
						||
}
 | 
						||
 | 
						||
# Restore xtrace
 | 
						||
$XTRACE
 |