python-glanceclient/doc/source/cli/property-keys.rst
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Image service property keys

The following keys, together with the components to which they are specific, can be used with the property option for both the openstack image set and openstack image create commands. For example:

$ openstack image set IMG-UUID --property architecture=x86_64

Note

Behavior set using image properties overrides behavior set using flavors. For more information, refer to the Manage images in the OpenStack Administrator Guide.

Image service property keys
Specific to Key Description Supported values
All architecture The CPU architecture that must be supported by the hypervisor. For example, x86_64, arm, or ppc64. Run uname -m to get the architecture of a machine. We strongly recommend using the architecture data vocabulary defined by the libosinfo project for this purpose.
All hypervisor_type The hypervisor type. Note that qemu is used for both QEMU and KVM hypervisor types. hyperv, ironic, lxc, qemu, uml, vmware, or xen.
All instance_type_rxtx_factor Optional property allows created servers to have a different bandwidth cap than that defined in the network they are attached to. This factor is multiplied by the rxtx_base property of the network. The rxtx_base property defaults to 1.0, which is the same as the attached network. This parameter is only available for Xen or NSX based systems. Float (default value is 1.0)
All instance_uuid For snapshot images, this is the UUID of the server used to create this image. Valid server UUID
All img_config_drive Specifies whether the image needs a config drive. mandatory or optional (default if property is not used).
All kernel_id The ID of an image stored in the Image service that should be used as the kernel when booting an AMI-style image. Valid image ID
All os_distro The common name of the operating system distribution in lowercase (uses the same data vocabulary as the libosinfo project). Specify only a recognized value for this field. Deprecated values are listed to assist you in searching for the recognized value.
  • arch - Arch Linux. Do not use archlinux or org.archlinux.
  • centos - Community Enterprise Operating System. Do not use org.centos or CentOS.
  • debian - Debian. Do not use Debian` ororg.debian``.
  • fedora - Fedora. Do not use Fedora, org.fedora, or org.fedoraproject.
  • freebsd - FreeBSD. Do not use org.freebsd, freeBSD, or FreeBSD.
  • gentoo - Gentoo Linux. Do not use Gentoo or org.gentoo.
  • mandrake - Mandrakelinux (MandrakeSoft) distribution. Do not use mandrakelinux or MandrakeLinux.
  • mandriva - Mandriva Linux. Do not use mandrivalinux.
  • mes - Mandriva Enterprise Server. Do not use mandrivaent or mandrivaES.
  • msdos - Microsoft Disc Operating System. Do not use ms-dos.
  • netbsd - NetBSD. Do not use NetBSD or org.netbsd.
  • netware - Novell NetWare. Do not use novell or NetWare.
  • openbsd - OpenBSD. Do not use OpenBSD or org.openbsd.
  • opensolaris - OpenSolaris. Do not use OpenSolaris or org.opensolaris.
  • opensuse - openSUSE. Do not use suse, SuSE, or org.opensuse.
  • rhel - Red Hat Enterprise Linux. Do not use redhat, RedHat, or com.redhat.
  • sled - SUSE Linux Enterprise Desktop. Do not use com.suse.
  • ubuntu - Ubuntu. Do not use Ubuntu, com.ubuntu, org.ubuntu, or canonical.
  • windows - Microsoft Windows. Do not use com.microsoft.server or windoze.
All os_version The operating system version as specified by the distributor. Valid version number (for example, 11.10).

All

os_secure_boot

Secure Boot is a security standard. When the instance starts, Secure Boot first examines software such as firmware and OS by their signature and only allows them to run if the signatures are valid.

For Hyper-V: Images must be prepared as Generation 2 VMs. Instance must also contain hw_machine_type=hyperv-gen2 image property. Linux guests will also require bootloader's digital signature provided as os_secure_boot_signature and hypervisor_version_requires'>=10.0' image properties.

  • required - Enable the Secure Boot feature.
  • disabled or optional - (default) Disable the Secure Boot feature.
All ramdisk_id The ID of image stored in the Image service that should be used as the ramdisk when booting an AMI-style image. Valid image ID.
All vm_mode The virtual machine mode. This represents the host/guest ABI (application binary interface) used for the virtual machine.
  • hvm - Fully virtualized. This is the mode used by QEMU and KVM.
  • xen - Xen 3.0 paravirtualized.
  • uml - User Mode Linux paravirtualized.
  • exe - Executables in containers. This is the mode used by LXC.
libvirt API driver hw_cpu_sockets The preferred number of sockets to expose to the guest. Integer.
libvirt API driver hw_cpu_cores The preferred number of cores to expose to the guest. Integer.
libvirt API driver hw_cpu_threads The preferred number of threads to expose to the guest. Integer.
libvirt API driver hw_disk_bus Specifies the type of disk controller to attach disk devices to. One of scsi, virtio, uml, xen, ide, or usb.

libvirt API driver

hw_rng_model

Adds a random-number generator device to the image's instances. The cloud administrator can enable and control device behavior by configuring the instance's flavor. By default:

  • The generator device is disabled.
  • /dev/random is used as the default entropy source. To specify a physical HW RNG device, use the following option in the nova.conf file:
rng_dev_path=/dev/hwrng

virtio, or other supported device.

libvirt API driver, Hyper-V driver

hw_machine_type

For libvirt: Enables booting an ARM system using the specified machine type. By default, if an ARM image is used and its type is not specified, Compute uses vexpress-a15 (for ARMv7) or virt (for AArch64) machine types.

For Hyper-V: Specifies whether the Hyper-V instance will be a generation 1 or generation 2 VM. By default, if the property is not provided, the instances will be generation 1 VMs. If the image is specific for generation 2 VMs but the property is not provided accordingly, the instance will fail to boot.

For libvirt: Valid types can be viewed by using the virsh capabilities command (machine types are displayed in the machine tag).

For hyper-V: Acceptable values are either hyperv-gen1 or hyperv-gen2.

libvirt API driver, XenAPI driver os_type The operating system installed on the image. The libvirt API driver and XenAPI driver contains logic that takes different actions depending on the value of the os_type parameter of the image. For example, for os_type=windows images, it creates a FAT32-based swap partition instead of a Linux swap partition, and it limits the injected host name to less than 16 characters. linux or windows.
libvirt API driver hw_scsi_model Enables the use of VirtIO SCSI (virtio-scsi) to provide block device access for compute instances; by default, instances use VirtIO Block (virtio-blk). VirtIO SCSI is a para-virtualized SCSI controller device that provides improved scalability and performance, and supports advanced SCSI hardware. virtio-scsi
libvirt API driver hw_serial_port_count Specifies the count of serial ports that should be provided. If hw:serial_port_count is not set in the flavor's extra_specs, then any count is permitted. If hw:serial_port_count is set, then this provides the default serial port count. It is permitted to override the default serial port count, but only with a lower value. Integer
libvirt API driver hw_video_model The video image driver used. vga, cirrus, vmvga, xen, or qxl.
libvirt API driver hw_video_ram Maximum RAM for the video image. Used only if a hw_video:ram_max_mb value has been set in the flavor's extra_specs and that value is higher than the value set in hw_video_ram. Integer in MB (for example, 64).
libvirt API driver hw_watchdog_action Enables a virtual hardware watchdog device that carries out the specified action if the server hangs. The watchdog uses the i6300esb device (emulating a PCI Intel 6300ESB). If hw_watchdog_action is not specified, the watchdog is disabled.
  • disabled - (default) The device is not attached. Allows the user to disable the watchdog for the image, even if it has been enabled using the image's flavor.
  • reset - Forcefully reset the guest.
  • poweroff - Forcefully power off the guest.
  • pause - Pause the guest.
  • none - Only enable the watchdog; do nothing if the server hangs.
libvirt API driver os_command_line The kernel command line to be used by the libvirt driver, instead of the default. For Linux Containers (LXC), the value is used as arguments for initialization. This key is valid only for Amazon kernel, ramdisk, or machine images (aki, ari, or ami).
libvirt API driver and VMware API driver hw_vif_model Specifies the model of virtual network interface device to use.
The valid options depend on the configured hypervisor.
  • KVM and QEMU: e1000, ne2k_pci, pcnet, rtl8139, and virtio.
  • VMware: e1000, e1000e, VirtualE1000, VirtualE1000e, VirtualPCNet32, VirtualSriovEthernetCard, and VirtualVmxnet.
  • Xen: e1000, netfront, ne2k_pci, pcnet, and rtl8139.
libvirt API driver hw_vif_multiqueue_enabled If true, this enables the virtio-net multiqueue feature. In this case, the driver sets the number of queues equal to the number of guest vCPUs. This makes the network performance scale across a number of vCPUs. true | false
libvirt API driver hw_boot_menu If true, enables the BIOS bootmenu. In cases where both the image metadata and Extra Spec are set, the Extra Spec setting is used. This allows for flexibility in setting/overriding the default behavior as needed. true or false
VMware API driver vmware_adaptertype The virtual SCSI or IDE controller used by the hypervisor. lsiLogic, lsiLogicsas, busLogic, ide, or paraVirtual.
VMware API driver vmware_ostype A VMware GuestID which describes the operating system installed in the image. This value is passed to the hypervisor when creating a virtual machine. If not specified, the key defaults to otherGuest. See thinkvirt.com.
VMware API driver vmware_image_version Currently unused. 1
XenAPI driver auto_disk_config If true, the root partition on the disk is automatically resized before the instance boots. This value is only taken into account by the Compute service when using a Xen-based hypervisor with the XenAPI driver. The Compute service will only attempt to resize if there is a single partition on the image, and only if the partition is in ext3 or ext4 format. true or false