User Stories on Symantec SDN Deployment with OpenContrail.

1. SDN Deployment: User Stories
Rudrajit Tapadar
Principal Software Engineer, Cloud Platform Engineering

2. Self-Service User Onboarding
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3. Self-Service User Onboarding
• Zero tickets for user onboarding into the OpenStack cloud dev
class of service
– Provide sign up capabilities on Horizon
• Provide easy networking
– Hide all complexities of OpenStack Networking from the user
– Automatically create network for the user on sign-up
– Allocate routable subnets to the user
– Automatically create security group rules with proper rules
– Create unique domain names for instances
• User confidence!
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4. Continuous Availability
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5. Continuous Availability
• Goal - 4 nine’s of availability
• 5 SDN controllers distributed over 3 racks
• 5 Cassandra database nodes distributed over 3 racks
– RF of 3 for analytics
– RF of 5 for config
– Periodical compaction
• Horizontally scalable
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6. Seamless Upgrades
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7. Seamless Upgrades
• Goal - Zero Downtime
• Controller upgrades
– No in-place upgrades
– Build a parallel control plane with new code
– Add them to the VIP pool and gradually decommission old controllers
• Database upgrades
– Add new DB nodes one by one to the existing cluster
– Repair the DB
– Decommission old DB node one by one
• Compute upgrades
– Automate unloading and loading of kernel module in all computes
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8. Auto-Healing
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9. Auto-Healing
• Most incidents are trivial
– Known issues
– Trivial fixes/workarounds
• Some incidents are complex
– RCA is very involved
– Might have to wait for next code release for a fix
– Quick and dirty solution – use auto healing scripts for workarounds
• Auto-Healing scripts
– Periodically wake up to check system health
– Identify complex bugs
– Execute workarounds and bring back the compute on-line
– Save pagers, run 24x7!
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10. Thank you!
Copyright © 2014 Symantec Corporation. All rights reserved. Symantec and the Symantec Logo are trademarks or registered trademarks of Symantec Corporation or its
affiliates in the U.S. and other countries. Other names may be trademarks of their respective owners.
This document is provided for informational purposes only and is not intended as advertising. All warranties relating to the information in this document, either express or
implied, are disclaimed to the maximum extent allowed by law. The information in this document is subject to change without notice.
Rudrajit Tapadar
@rtapadar