Slides shown during the Oslo project update session in Vancouver, May 2018.

1. Oslo
Project Update, OpenStack Summit Vancouver
Ben Nemec <bnemec@redhat.com>
May 2018

2. What is Oslo?
●
Mission: To produce a set of python libraries containing code shared by OpenStack projects. The APIs provided by these
libraries should be high quality, stable, consistent, documented and generally applicable.
●
Team: A combination of generalist code reviewers and specialist API maintainers.
●
Fun fact: Independent contributors are one of the largest sources of commits and reviews in Oslo.
●
Projects: Around 40, covering things like messaging, database, config, and many other areas.
●
Details: https://wiki.openstack.org/wiki/Oslo

3. ●
Oslo.messaging Kafka Support Improvements
●
http://specs.openstack.org/openstack/oslo-specs/specs/queens/update-kafka-support.html
●
Experimental Release
●
Notifications only – not RPC
●
CI integration
●
Functional test case
●
Full tempest test case
●
External Policy Decision Point
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http://specs.openstack.org/openstack/oslo-specs/specs/queens/external-pdp.html
●
"get_images": "http://external_pdp_server:8080/{name}s"
OpenStack Queens Features

4. Policy Deprecation
http://specs.openstack.org/openstack/oslo-specs/specs/queens/policy-deprecation.html
deprecated_rule = policy.DeprecatedRule(
name='foo:create_bar',
check_str='role:fizz'
)
policy.DocumentedRuleDefault(
name='foo:create_bar',
check_str='role:bang',
description='Create a bar.',
operations=[{'path': '/v1/bars', 'method': 'POST'}],
deprecated_rule=deprecated_rule,
deprecated_reason='role:bang is a better default',
deprecated_since='N'
)
OpenStack Queens Features

5. Add Scope to Policy
http://specs.openstack.org/openstack/oslo-specs/specs/queens/include-scope-in-policy.html
Projects can add a scope_types kwarg to the RuleDefault object and operators can consume it using a config
option
policy.DocumentedRuleDefault(
name=base.IDENTITY % 'create_user',
scope_type=['system', 'project'],
check_str=base.RULE_ADMIN_REQUIRED,
description='Create a user.',
operations=[
{'method': 'POST',
'path': '/v3/users'}
]
)
OpenStack Queens Features

6. ●Oslo.config driver support
● http://specs.openstack.org/openstack/oslo-specs/specs/queens/oslo-config-drivers.html
●Remove plaintext passwords from config files
● https://review.openstack.org/#/c/474304/
●Oslo.config version migrator
● https://review.openstack.org/#/c/526314/
●Oslo.Messaging:
●Removal of deprecated Pika driver, deprecation of ZeroMQ driver
●Continue to refine Kafka Driver
●Dynamic RPC call timeout via call monitoring
● https://review.openstack.org/#/c/546763/
●PBR
●Remove sphinx integration
●Remove support for versioned requirements files
OpenStack Rocky

7. ●Oslo.limit
●Oslo.config drivers
●Oslo.messaging:
●Messaging Primitives – low level messaging API
●Basic Message Send/Receive API
●Queuing API
Beyond Rocky

8. Cross-Project Work
●
All of it :-)
●
Adoption of oslo.limit
●
Adoption of oslo.config drivers for secret storage
●
Updates to projects to remove dependencies on deprecated
features

9. Cross-Project Work
●
Oslo.messaging + Deployment/Configuration Frameworks:
●
Enable support for deploying optional drivers
●
Supported options for RPC transport:
●
RabbitMQ, Qpid Dispatch Router
●
Supported options for Notification transport:
●
RabbitMQ, Kafka Broker (experimental)
●
Frameworks
●
DevStack
●
TripleO (rocky-2)
●
Kolla-Ansible
●
Puppet OpenStack Integration
●
OpenStack Ansible (current development)

10. How to give feedback
●
https://bugs.launchpad.net/oslo
●
StoryBoard coming soon
●
#openstack-oslo on Freenode
●
[Oslo] tag on openstack-dev

11. How to contribute
●
Don’t need to be full time. Most (all?) Oslo cores have other
responsibilities outside Oslo.
●
Pick a project, review code, fix bugs. It is not necessary to
learn all of Oslo to contribute. Experts in specific areas are
very welcome.

12. @OpenStack
Q&A
Thank you!
openstack openstack OpenStackFoundation