Techday Ontario 2015 @BlackBerryWaterloo, ON Canada, July 10th

© OpenNebula Project. Creative Commons Attribution-NonCommercial-ShareAlike License

OpenNebula is Evolving…Fast!

Javier Fontán

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Agenda

● OpenNebula 4.14● Disk and image snapshotting● Recovery mechanisms for VMs● Disk showback● GPU devices from a VM● Sunstone Refactor● Cloning of running VMs● Import running VMs● Migration of VM across Datastores● Cold Attach/Detach NIC and disk.● Image Resize

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Great A'Tuin

the turtle comes, swimming slowly through the interstellar gulf, hydrogen frost on his ponderous limbs, his huge and ancient shell pocked with meteor craters. Through sea-sized eyes that are crusted with rheum and asteroid dust He stares fixedly at the Destination.

Terry Pratchett - The Colour of Magic

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OpenNebula 4.14

● Great A'Tuin

● Last one before 5.0

● Big Release (lots of changes)

● Compatibility Guide

● Beta end of July. Final release early September

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Disk and image snapshotting

● Disk snapshots are a new entity

● Create, Revert, Delete○ running, poweroff, suspended

● Subject to Quotas

● Monitor snapshot size

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Disk and image snapshotting

● Can be exported to a new image○ $ onevm disk-saveas

○ STATES: running, poweroff, suspended○ --deferred is deprecated

● Persistent images can have snapshots○ operations: flatten, revert, delete

● 3 implementations: Ceph, FS (plain files) and Qcow2,

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Disk Showback

● OpenNebula <= 4.12○ CPU_COST○ MEMORY_COST

● New DISK_COST is introduced

● It's a MB/hour metric

● Defined in the template

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Recovery mechanisms for VMs

● OpenNebula is much more recoverable

● Any state can now be recovered○ --success

○ --failure

○ --retry

○ --interactive

● FAILED state is now:BOOT_FAILURE, PROLOG_MIGRATE_POWEROFF_FAILURE, etc...

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GPU Devices

● GPUs discovered by the monitorization probes

● Can be added to a template

● Passthrough to the VM

● Subject to Quotas

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Sunstone Rewrite

● Modularization● Templates System

$ git diff --stat release-4.12 master src/sunstone | tail -n1

823 files changed 273254 insertions(+), 201083 deletions(-)

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Sunstone Rewrite

Zones-tab.jsOpenNebula 4.12: 390 lines

Before...

more pages...

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Sunstone Rewrite

Zones-tab.jsOpenNebula 4.14: 36 lines

After...

more pages...

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Cloning of running VMs

Provides the ability to clone a VM along with its reference disks and networks.

$ onevm save <vmid> <name>

Clones the VM's source Template,

replacing the disks with live snapshots

of the current disks. The VM capacity and

NICs are also preserved

States: POWEROFF

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Import of Existing VMs

● KVM, Xen, AWS, Azure and vCenter● The monitoring probes detect wilds● wild VMs can be imported● The life-cycle can be managed

Limitations:● Delete --recreate● Undeploy (and Undeploy --hard)● Migrate (and Migrate --live)● Stop

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Migration of VMs datastores

The System datastore of a VM can be migrated.

$ onevm migrate <range|vmid_list>

<hostid> [<datastoreid>]

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Cold Attach / Detach of NICs and DISKS

These operations can now be executed in the POWEROFF state.

$ onevm disk-attach <vmid>

Attaches a disk to a running VM. When

using --file add only one

DISK instance.

States: RUNNING, POWEROFF

valid options: file, image, target,

cache, prefix

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Disk Resize

Possibility to resize the size of a VM disk when instantiating the VM.

This does not perform the resize within the Guest OS, it will only resize the container.

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Questions?We Will Be Happy to Answer any Question

Building your Enterprise-ready Cloud with OpenNebula

@opennebula

You are missing a lot if you do not upgrade!

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