OpenNebula is Evolving... Fast! - Jaime Melis
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Transcript of OpenNebula is Evolving... Fast! - Jaime Melis
Techday Sofia 2016 @ StorPoolSofia, Bulgaria, February 25th
© OpenNebula Project. Creative Commons Attribution-NonCommercial-ShareAlike License
OpenNebula is Evolving…Fast!
Jaime Melis
1
Agenda
● OpenNebula 4.14 Highlights● The Road to 5.0● OpenNebula 5.0 Highlights● MarketPlace● Docker-Machine
2
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
3
OpenNebula 4.14
● Great A'Tuin
● Last one before 5.0
● Big Release (lots of changes)
● Compatibility Guide
4
Disk and image snapshotting
● Disk snapshots are a new entity
● Create, Revert, Delete○ running, poweroff, suspended
● Subject to Quotas
● Monitor snapshot size
5
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
7
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...
8
GPU Devices
● GPUs discovered by the monitorization probes
● Can be added to a template
● Passthrough to the VM
● Subject to Quotas
9
Sunstone Rewrite
● Modularization● Templates System
$ git diff --stat release-4.12 master src/sunstone | tail -n1
823 files changed 273254 insertions(+), 201083 deletions(-)
10
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
13
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
14
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
16
Disk Resize
Possibility to resize the size of a VM disk when instantiating the VM.
The Context packages resize the Guest when starting.
17
The Road to 5.0
● Evolution result after 8 years + ~80 releases.
● 5.x series goal○ Keep project vision and KISS adherence ○ Improve usability and refine current feature set○ As much as possible, don’t break compatibility○ Less used components to the add-on catalog
Some Highlights...
● User Interface○ Improve input fields & views in Sunstone
● Virtual Network:○ Security groups○ Virtual routers
● Storage○ Ceph as system Datastore & tuning○ Integrated Marketplace*○ Better LVM backend and new iSCSI
● Virtualization○ Make possible more operations across VM states○ Guest-Context improvements
* Discussed in this talk
● Share as less as possible● Tolerate big latencies● Reduce coupling by sharing just: User & Auth information● Federation of identities
Federation: Overview
Multimaster replication
Shared tables across zones
Sunstone
OpenNebula
Infrastructure
XML-RPC API
OpenNebula
Infrastructure
XML-RPC API
DBDB
º
º
Federation: Marketplace
oned
export image
S3 - http
Datastores
*
* Market storage (optional)
ºoned
Datastores
download image
S3 - http
external marketplaces
download to desktop
Marketplace
zone
zone
How can we share zone contents?
Federation: Marketplace Demonstration● Totally integrated, multiple uses cases, e.g.
○ Setup market for some groups○ Set access control to appliances
● 5.0 shipped with two backends○ Web server, using http transport to move images○ S3 object store through Ceph S3 gateway○ Public OpenNebula marketplace (client-only)
● Follows OpenNebula architecture:○ Datastore specific operations○ MarketPlace specific drivers
● Future plans to add more external drivers
Docker-Machine + OpenNebula
Integrate with Docker-Machine
Use OpenNebula transparently to deploy your Docker host.
Switch between your docker hosts.
Docker-Machine + OpenNebula - You can try it out
Try it out!
https://github.com/OpenNebula/docker-machine-opennebula
Go Bindings
GOCA
http://github.com/OpenNebula/goca
Go! bindings for OpenNebulaStill a work in progress... we want your PRs!