5bf96da187
When generating host variable files for Kolla Ansible, we have some heavy usage of set_fact to set variables for network interfaces, in a play targeted at all hosts. There are also tasks using the fail action plugin to perform verification. At scale this has a significant impact, due to the number of tasks executed against all hosts. These tasks are executed at the beginning of many commands, so the scope is broad. There is also some tricky logic involved, which is difficult to express in Ansible/Jinja. This change replaces the use of set_fact with a custom Ansible action plugin. The plugin executes locally on the Ansible controller, and returns a dict of Ansible facts to set for each host. The plugin is executed once for each overcloud host, and returns all relevant facts. The plugin also performs verification. Extraction into a Python module allows for unit testing. This has been shown to have a significant improvement on execution time, particularly as the number of hosts reaches 100 or more. Story: 2007993 Task: 40641 Change-Id: I443da1ae05fcca2d7d8dff7db563eeda37e9f502
Kayobe
Kayobe enables deployment of containerised OpenStack to bare metal.
Containers offer a compelling solution for isolating OpenStack services, but running the control plane on an orchestrator such as Kubernetes or Docker Swarm adds significant complexity and operational overheads.
The hosts in an OpenStack control plane must somehow be provisioned, but deploying a secondary OpenStack cloud to do this seems like overkill.
Kayobe stands on the shoulders of giants:
- OpenStack bifrost discovers and provisions the cloud
- OpenStack kolla builds container images for OpenStack services
- OpenStack kolla-ansible delivers painless deployment and upgrade of containerised OpenStack services
To this solid base, kayobe adds:
- Configuration of cloud host OS & flexible networking
- Management of physical network devices
- A friendly openstack-like CLI
All this and more, automated from top to bottom using Ansible.
- Free software: Apache license
- Documentation: https://docs.openstack.org/kayobe/latest/
- Source: https://opendev.org/openstack/kayobe
- Bugs: https://storyboard.openstack.org/#!/project/openstack/kayobe
- Release Notes: https://docs.openstack.org/releasenotes/kayobe/
- IRC: #openstack-kolla
Features
- Heavily automated using Ansible
- kayobe Command Line Interface (CLI) for cloud operators
- Deployment of a seed VM used to manage the OpenStack control plane
- Configuration of physical network infrastructure
- Discovery, introspection and provisioning of control plane hardware using OpenStack bifrost
- Deployment of an OpenStack control plane using OpenStack kolla-ansible
- Discovery, introspection and provisioning of bare metal compute hosts using OpenStack ironic and ironic inspector
- Virtualised compute using OpenStack nova
- Containerised workloads on bare metal using OpenStack magnum
- Big data on bare metal using OpenStack sahara
- Control plane and workload monitoring and log aggregation using OpenStack monasca