docker with openstack
TRANSCRIPT
Docker / OpenStackOpenStack Meetup Paris
Chmouel Boudjnah // @chmouel@enovance
About Docker
Paas + Iaas
Paas IaasDocker
OpenStack and
Docker use cases.
Docker with OpenStack use case
Zone Baremetal Zone Docker Zone Virtualized
GlanceNova API
User
Docker with OpenStack use case
VMs VMs VMs VMs
Container Container Container
BM BM BM
Docker with OpenStack APP
Containerized App Containerized App Containerized App
Management Server “Legacy” App “Legacy” App
BM App BM App
OpenStack
Integration
OpenStack integration: History
● Excitement about the integration in the
beginning.
● Started to get shipped with Havanna (Sept
2013)
● Devstack, Glance, Integration
● Removed in Icehouse
● Heat plugin in-tree.
Heat
Hot
Nova Resource
Docker Resource
Nova VM
Docker API server
Container1
Container2
Heat
Hot
Nova Resource
Docker Resource
Nova VM
Docker API server
Container1
Container2
Neutron Resource
Block Storage Resource
Trove/Zaquar etc….
Concrete Heat Example
http://techs.enovance.com/7104/multi-tenant-docker-with-openstack-heat
Nova
● First class Hypervisor for Nova, the same driver you can
have for libvirt/xen or others you have it for docker.
● Sitting in Stackforge it allowed to reach maturity outside
the core project.
● Lack of integration with Cinder and Neutron.
● Allow you to orchestrate your containers directly via the
Nova API or its UI Horizon.
Nova: Supported Operations
● Launch
● terminate
● Reboot
● Serial console
● Snapshot
● Guess Info
● Pause/Unpause
https://wiki.openstack.org/wiki/HypervisorSupportMatrix
Glance
Back in Havana and Icehouse user
had to go by the docker-registry to
add new image which would be
passed down to glance.
Now the process is much more
streamlined, the docker registry
can export directly to Glance.
Magnum: Containers as a Service
● Operating under the OpenStack Compute Board.
● A proposal discussed for quite some time.
● It would be the Nova of containers (and not just
Docker)
● It could use Nova to spawn containers in Nova.
● It would expose multi tenancy to the container
services which is inherently local to the instance.
● Integration with Kubernetes and Docker for
backend container technology.
● Those instance can be VMs, Baremetal or even
Containers
Kolla: Docker + OpenStack + Kubernetes
● Deploy OpenStack in Containers via Kubernetes.
● OpenStack as the OpenStack services like heat, glance,
nova, keystone etc..
● Started to ‘Dockerize’ all the images.
● Wrote service definitions for Kubernetes.
● Minimal feature sets implemented to be able to launch a VM
in a Kubernetes deployed Cloud.
Solum: OpenStack native Paas
You probably know everything about it by now.
Holidays wishlist gift.
● Native Cinder Support to Docker
● Native Neutron Support for Docker
● Native Keystone Support for auth in Docker
● Magnum MVP in Kilo.
● Support for containers in Devstack.
● Docker exec feature in Heat.
Fin
Chmouel Boudjnah @chmouel