Hi,
I've investigated status of nodepool multi node testing and fuel-qa approaches,
and I wanna share my opinion on moving Fuel testing on OpenStack and nodepool.
Our CI pipeline consists of next stages:
1. Artifact building and publishing
2. QA jobs:
2.1. Master node installation from ISO
2.2. Slave nodes provisioning
2.3. Software deployment
2.4. Workload verification
Current upstream nodepool limitations are pre-spwaned nodes, small flavors and,
only l3 connectivity. Also, we have no PXE booting and VLAN trunking in
OpenStack itself. So, the main problem with moving this pipeline to nodepool is
to emulate IT tasks: installation from ISO and nodes provisioning.
Actually the point is: to test Fuel and test rest of OpenStack components
against Fuel we mostly need to test stage artifact building, deployment and
verification. So we need to make Fuel installable from packages and create
overlay L2 networking. I've found no unsolvable problems right now to check
most of scenarios with this approach.
Besides artifact building step, there are next actions items to do to run Fuel
QA test:
1. Automate overlay networking setup. I've used https://www.tinc-vpn.org/
<https://www.tinc-vpn.org/> as a L2 switching overlay, but OpenVPN could be
tool of choice. Action items:
- overlay networking setup should be integrated in fuel-devops
2. Automate Fuel master node codebase installation from packages, including
repo adding and deployment. Action items:
- installation should be integrated in fuel-devops or nodepool infra
- make bootstrap scripts working with more than one network on master
node ("Bringing down ALL network interfaces except...")
- fix iptables and ssh for underlay networking
3. Automate Fuel slave node codebase installation and node enrollment. Action
items:
- nailgun-agent installation should be integrated in fuel-devops or
nodepool infra
- mcollective and ssh keys setup should be automated
- nailgun ang/or astute should be extended to allow pre-provisioned
nodes enrollment (I'm doing this part now)
- nailgun-agent and l23network should support overlay network interfaces
--
With best regards,
Vladimir Eremin,
Fuel Deployment Engineer,
Mirantis, Inc.
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