Virtualization Mini Summit, Austin 2008 mmm, tasty penguins...

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Presentation transcript:

Daniel P. Berrangé <berrange@redhat.com> Virtualization Mini Summit, Austin 2008 mmm, tasty penguins... Daniel P. Berrangé <berrange@redhat.com>

libvirt: Why? Stable: isolation from HV API changes Standard: portable across HV Simple: rapid application development Portable: Linux, Windows & OS-X Client Secure: TLS + x509, Kerberos, SSH, Polkit

Xen architecture

libvirt: Xen Driver

libvirt: What? Xen – XenD, XenStoreD, libxc QEMU – KVM, KQEMU, QEMU, Xenner LXC – native Linux containers OpenVZ – alternate containers Test – 'mock' hypervisor Remote – RPC access to APIs Future... VMWare ? Hyper-V ? VirtualBox?

libvirt: How?

libvirt: How?

libvirt: Where? virsh: command line admin tool/shell gnome-applet-vm: VM monitoring virt-manager: desktop manager app virt-inst: install, clone, deploy appliance cobbler/koan: kickstart over a network rhn: red hat network management Ovirt: data center management

libvirt: Resource Management Mechanism not policy Schedular caps/guarantees Disk/net I/O priorities Disk/net I/O caps/guarantees Stats collection / analysis User cap (ulimit per user ? Cgroups?) Realtime ?

libvirt: Security Mandatory Access Control (SELinux) Control user API access Protect host from guest (protect disks) Protect guest from guest (isolate VMs) Protect network from guest (isolate LAN) Audit events / operations

libvirt: System Model Need for pre-migration “safety” checks Storage – no libraries, all CLI :-( Network – no libraries, all CLI :-( NM? Host devices – sysfs - yuk. HAL - Yay ! Hypervisor capabilities.

libvirt: QEMU Monitor / CLI stability VirtIO hotplug USB re-directed over wire Sound re-directed over wire Keyboard mappings Kerberize VNC 3d accelerated desktop

http://libvirt.org/