In this talk we'll showcase the new support for LXD containers in OpenNebula. The talk will describe the basic functionality of the new drivers and will provide some hints on the integration internals. LXD support will be released in OpenNebula 5.8 and it will let you manage LXD containers in your cloud using the same interfaces as with VMs, leveraging all the OpenNebula ecosystem and functionality including: Marketplace, multi-tenancy or service composition with OpenNebula Flow.

1. Ruben S. Montero
Chief Architect // @ruben_s_montero // rsmontero@opennebula.org
OpenNebula & LXD
Containers

2. OpenNebula & LXD Containers
LXD/LXC Containers
● Infrastructure containers
● High density linux based appliances
● Leverage all the upper orchestration functionality including:
○ Authorization & Authentication
○ Scheduling
○ Provisioning schemes
○ Other subsystems, networking & storage
○ Tools (Context, Flow, etc…)
LXD support has been founded by Demonware!

3. OpenNebula & LXD: Storage
LXD node (OpenNebula Host)
Storage Mappers
File: raw & qcow2
RBD: ceph
Container
LXD service (REST API)
Container Container Container
OpenNebula
VMM drivers
rootfs maps disk.i maps
System
Datastore
Image
Datastore
Linuxcontainers.org
MarketPlace
KVM disk images
Container images
● Any OpenNebula TM/DM driver.
● Follow Image semantics
● Disk Operations

4. OpenNebula & LXD n: Networking
LXD node (OpenNebula Host)
Container
LXD service (REST API)
Container Container Container
OpenNebula VNET
VXLAN, 802.1Q,...
Bridge
tun/tap
NIC
● Linux Bridge Drivers
● 802.1Q, VXLAN, Bridged
● Security Groups
● Context support

5. OpenNebula & LXD: Virtualization
LXD node (OpenNebula Host)
Container
LXD service (REST API)
Container Container Container
VNC control daemon
● Handles incoming connections
● Creates VNC terminals on connection
Supported Actions
attach/detach disk
attach/detach NIC
cancel
deploy
poll
reboot/reset
shutdown
Not Supported in 5.8
migrate
save/restore
snapshot_*
resize_disk
VNC
terminal
VNC
terminal
VNC
terminal
VNC
terminal

6. ● LXD Drivers to be released with 5.8
○ VMM drivers
○ linuxcontainers.org market place
○ Mappers for raw, qcow2 & ceph
○ Support for KVM images (multiple partitions)
○ Context packages
OpenNebula & LXD Containers

7. THANKS!
OpenNebulaConf 2018
7th
edition