The nova.conf configuration file is an INI file format as explained in . You can use a particular configuration option file by using the option (nova.conf) parameter when you run one of the nova-* services. This parameter inserts configuration option definitions from the specified configuration file name, which might be useful for debugging or performance tuning. For a list of configuration options, see the tables in this guide. To learn more about the nova.conf configuration file, review the general purpose configuration options documented in . Do not specify quotes around Nova options. Configuration options are grouped by section. The Compute configuration file supports the following sections: [DEFAULT] Contains most configuration options. If the documentation for a configuration option does not specify its section, assume that it appears in this section. [baremetal] Configures the baremetal hypervisor driver. [cells] Configures cells functionality. For details, see . [conductor] Configures the nova-conductor service. [database] Configures the database that Compute uses. [glance] Configures how to access the Image service. [hyperv] Configures the Hyper-V hypervisor driver. [image_file_url] Configures additional filesystems to access the Image Service. [keymgr] Configures the key manager. [keystone_authtoken] Configures authorization via Identity service. [libvirt] Configures the hypervisor drivers using the Libvirt library: KVM, LXC, Qemu, UML, Xen. [matchmaker_redis] Configures a Redis server. [matchmaker_ring] Configures a matchmaker ring. [metrics] Configures weights for the metrics weighter. [neutron] Configures Networking specific options. [osapi_v3] Configures the OpenStack Compute API v3. [rdp] Configures RDP proxying. [serial_console] Configures serial console. [spice] Configures virtual consoles using SPICE. [ssl] Configures certificate authority using SSL. [trusted_computing] Configures the trusted computing pools functionality and how to connect to a remote attestation service. [upgrade_levels] Configures version locking on the RPC (message queue) communications between the various Compute services to allow live upgrading an OpenStack installation. [vmware] Configures the VMware hypervisor driver. [xenserver] Configures the XenServer hypervisor driver. [zookeeper] Configures the ZooKeeper ServiceGroup driver.