Vikram Hosakote

Sr. Software Engineer, Cisco SystemsOpenStack Summit, Austin

April 25 2016

Multi-node ZUUL gate for bare-metal and Docker

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Agenda

1. What is Zuul ?

2. Zuul for OpenStack Gating

3. Zuul Architecture

4. Zuul-Jenkins Integration

5. Zuul with multi-node and bare-metal

6. Zuul with Docker containers

7. Q&A

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What is Zuul ?

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In the movie Ghostbusters, Zuul is the demigod and gatekeeper of Gozer, the destructor.

What is Zuul ?

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Program used to gate the source code repository of a project so that changes are only merged if they pass tests.

What is Zuul ?

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Zuul for OpenStack Gating

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• Zuul is a pipeline-oriented project gating system

• Facilitates running tests and automated tasks in response to Gerrit events

Zuul for OpenStack Gating

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Zuul Architecture

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• Connections (Gerrit, SMTP)• Triggers (Gerrit, Timer, Zuul)• Reporters (Gerrit, SMTP)• Zuul Cloner• Launchers (Gearman Jenkins Plugin)• Statsd reporting (Metrics)• Zuul Client

Zuul Architecture

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Zuul-Jenkins Integration

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• The Gearman Jenkins Plugin makes it easy to use Jenkins with Zuul by providing an interface between Jenkins and Gearman

• https://wiki.jenkins-ci.org/display/JENKINS/Gearman+Plugin• Gearman Plugin passes Zuul Parameters as Jenkins build

parameters.• http://docs.openstack.org/infra/zuul/launchers.html#zuul-

parameters

Zuul-Jenkins Integration

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• Example Jenkins Git SCM plugin configurationSource Code Management:

Git

Repositories:

Repository URL: <your Gerrit or Zuul repository URL>

Advanced:

Refspec: ${Zuul_REF}

Branches to build:

Branch Specifier: ${Zuul_COMMIT}

Advanced:

Clean after checkout: True

Zuul-Jenkins Integration

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Zuul with multi-node and bare-metal

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• Zuul v3 supports multi-node• Example multi-node playbook ### openstack-infra/zuul-playbooks/zuul-multinode.yaml --- hosts: controller roles: - zuul-controller --- hosts: compute roles: - zuul-compute

Zuul with multi-node and bare-metal

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• Replace devstack-vm-gate-wrap.sh with bare-metal orchestration

• https://git.openstack.org/cgit/openstack-infra/devstack-gate/tree/devstack-vm-gate-wrap.sh

• Can be integrated with OpenStack Ironic• https://wiki.openstack.org/wiki/Ironic

Zuul with multi-node and bare-metal

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Zuul with Docker containers

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OpenStack Kolla deploys OpenStack cloud in Docker containers in gate using Zuul.https://wiki.openstack.org/wiki/Kolla

https://github.com/openstack-infra/project-config/blob/master/jenkins/jobs/kolla.yaml

Zuul with Docker containers

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https://github.com/openstack-infra/zuul/tree/master

http://status.openstack.org/zuul/http://docs.openstack.org/infra/zuul/

https://github.com/openstack-infra/project-config/tree/masterhttps://jenkins.io

Useful Links

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Q&A