When you use a XAPI managed hypervisor, you can install a Python script (or any executable) on the host side, and execute that through XenAPI. These scripts are called plug-ins. The OpenStack related XAPI plug-ins live in OpenStack Compute's code repository. These plug-ins have to be copied to dom0's filesystem, to the appropriate directory, where XAPI can find them. It is important to ensure that the version of the plug-ins are in line with the OpenStack Compute installation you are using. The plugins should typically be copied from the Nova installation running in the Compute's DomU, but if you want to download the latest version the following procedure can be used.

Create temporary files/directories: $ NOVA_ZIPBALL=$(mktemp) $ NOVA_SOURCES=$(mktemp -d) Get the source from GitHub. The example assumes the master branch is used, and the XenServer host is accessible as xenserver. Match those parameters to your setup. $ NOVA_URL=https://github.com/openstack/nova/archive/master.zip $ wget -qO "$NOVA_ZIPBALL" "$NOVA_URL" $ unzip "$NOVA_ZIPBALL" -d "$NOVA_SOURCES" Copy the plug-ins to the hypervisor: $ PLUGINPATH=$(find $NOVA_SOURCES -path '*/xapi.d/plugins' -type d -print) $ tar -czf - -C "$PLUGINPATH" ./ | > ssh root@xenserver tar -xozf - -C /etc/xapi.d/plugins/ Remove temporary files/directories: $ rm "$NOVA_ZIPBALL" $ rm -rf "$NOVA_SOURCES"