The microstack-support interface

The microstack-support interface enables multiple service access for the Microstack infrastructure. It’s used by the Microstack snap, a full OpenStack deployment within a single snap package.

Virtual machines are spawned as QEMU processes with libvirt acting as a management daemon (including for activities such as applying AppArmor profiles).

Networking is provided largely via OpenVSwitch and Neutron, with dnsmasq acting as an auxiliary daemon. A tun/tap kernel module is used for creating virtual interfaces.

Virtual machines rely on KVM for virtualisation acceleration and the vhost framework in the kernel (vhost_net, vhost_scsi, vhost_vsock).

Interface documentation:

See Interface management and Supported interfaces for further details on how interfaces are used.

Developer details

Auto-connect: no
Super-privileged: yes

This interface allows MicroStack to operate by allowing the necessary system calls to be used by the following services:

  • libvirt
  • qemu
  • qemu-img
  • Nova
  • Neutron
  • Keystone
  • Glance
  • Cinder

Code examples

The snapcraft.yaml for MicroStack can be found here:

The source code for the interface is in the snapd repository:

Last updated 11 months ago.