Initiative

Introduction

The first release of StarlingX provided a hardened OpenStack platform
Evolution plan to move to a cloud native (Kubernetes) platform was presented at the Vancouver Summit
- Run the infrastructure including OpenStack services as containerized applications on Kubernetes
- Containerization work is planned to be done in phases having OpenStack and dependencies the initial focus

Kubernetes master configuration on two nodes with high availability (HA)
- Run on existing StarlingX nodes
- Deployed by StarlingX system configuration
Calico CNI plugin
Docker runtime
CEPH as persistent storage backend
- Leverage existing bare metal CEPH cluster
- Extend CEPH support to one- and two-node configuration
Authentication/authorization of Kubernetes APIs with Keystone
Local Docker image registry, authentication with Keystone
Helm as package manager
Airship Armada for orchestrating the deployment of multiple Helm charts (ex. OpenStack)
Initial Kubernetes hosting environment for applications, the infrastructure including OpenStack will also be containerized

The "Flock" services with the exceptions called out later are not planned to be containerized for the initial phase
An instance of Keystone, RabbitMQ, and PostgreSQL will remain on bare metal and will be used for the "Flock" service
An instance of Horizon will remain on bare metal for the "Flock" services only

All OpenStack services currently integrated by StarlingX are planned to be containerized
- Including dependencies such as MariaDB
- Pike based
  - nova-api proxy from stx-nfv will be containerized
  - nova-compute will be containerized
  - Neutron will be containerized
  - cilometer-poller will be containerized
- Keystone container will run in the 'openstack' namespace for the OpenStack services only
rbd-provisioner pod: enabling pvc's from the CEPH cluster
An instance of the Fault Management service will be containerized for alarming in OpenStack
Current StarlingX compute nodes are re-purposed as Kubernetes worker nodes
OVS-DPDK is not containerized
- No Helm chart is currently available