The document provides an overview of OpenStack's database as a service (DBaaS) called Trove, detailing its history, architecture, key components, and operational instructions. Trove allows users to manage various database systems within the OpenStack framework, shifting the control of infrastructure to the cloud. It includes functionalities for creating instances, databases, and managing configurations effectively.

1. HX111 OpenStack Database as a
Service
Version 12c1c1e
Copyright © 2014 hastexo Professional Services GmbH

2. An Introduction to
Database-as-a-
Service
HX111 OpenStack Database as a Service

3. FROM IAAS TO PAAS
"A step up the stack"
HX111.1 An Introduction to Database-as-a-Service

4. EVERYONE NEEDS A
DATABASE...
Well, almost everyone.
HX111.1 An Introduction to Database-as-a-Service

5. ... BUT DOES EVERYONE NEED
TO BUILD THEIR OWN?
• Platform/Distribution Support
• System Tuning Idiosyncrasies
• Flavors, Forks, Branches
HX111.1 An Introduction to Database-as-a-Service

6. WHAT'S SPECIAL ABOUT THE
CLOUD?
• Little to no control over infrastructure
• Everything is virtualized and orchestrated
• QoS is limited
HX111.1 An Introduction to Database-as-a-Service

7. ONE APPROACH
The DBA now becomes a cloud operator.
But that's rather undesirable.
HX111.1 An Introduction to Database-as-a-Service

8. THE ALTERNATIVE: DBAAS
Provides a database as a service
HX111.1 An Introduction to Database-as-a-Service

9. PRECEDENT: AMAZON RDS
Reliable Database Service: DBaaS for Amazon Web Services
HX111.1 An Introduction to Database-as-a-Service

10. An Introduction to
OpenStack Trove
HX111 OpenStack Database as a Service

11. MOTIVATION
Provide DBaaS within the OpenStack framework
HX111.2 An Introduction to OpenStack Trove

12. A BIT OF PROJECT HISTORY
• Originally named Reddwarf (alternatively RedDwarf)
• First public presentation at Percona Live 2012 by Brian
Aker
• Renamed Trove in 2013
HX111.2 An Introduction to OpenStack Trove

13. RELEASE HISTORY
• Incubated until Havana release (October 2013)
• Graduated shortly before Icehouse Summit
• Integrated in Icehouse release (April 2014)
HX111.2 An Introduction to OpenStack Trove

14. CONTRIBUTORS AND
SUPPORTERS
• Original project sponsor: Hewlett-Packard
• Current major backers: eBay, HP, Rackspace
• More than 75 individual contributors
• Current PTL: Michael Basnight, Rackspace
HX111.2 An Introduction to OpenStack Trove

15. Trove's Moving Parts
HX111 OpenStack Database as a Service

16. MULTIPLE MANAGEABLE PIECES
OpenStack Abhors A Monolith
HX111.3 Trove's Moving Parts

17. WHAT TROVE BUILDS UPON
• Keystone: authentication, authorization, access control
• Nova: compute
• Cinder: persistent storage
• Neutron or nova-network: networking
HX111.3 Trove's Moving Parts

18. WHAT TROVE CONSISTS OF
• trove-api: ReSTful API service
• trove-taskmanager: implements API service calls and
fires up guest
• trove-guestagent: configures guest for datastore use
HX111.3 Trove's Moving Parts

19. TROVE TERMINOLOGY
• Datastore
• Datastore version
• Instance
• Configuration Group
• Database
HX111.3 Trove's Moving Parts

20. DATASTORE
A specific RDBMS or NoSQL datastore that Trove can manage:
• MySQL
• MongoDB
• Cassandra
• ...
HX111.3 Trove's Moving Parts

21. DATASTORE VERSION
• Is linked to datastore
• Defines base image
• Defines sets of packages to be installed
HX111.3 Trove's Moving Parts

22. INSTANCE
• Is one incarnation of a datastore version
• Is managed by Nova and uses persistent volumes
managed in Cinder
• Runs a full OS plus trove-guestagent
HX111.3 Trove's Moving Parts

23. CONFIGURATION GROUP
• A set of configuration options you can set for an instance
• Enables admins to define and use best-practice
configurations for specific use cases
HX111.3 Trove's Moving Parts

24. DATABASES
• Several can run in one instance
• All database management is through OpenStack APIs
and trove-guestagent
HX111.3 Trove's Moving Parts

25. GETTING TROVE OPERATIONAL
• Install required OpenStack services
• Install Trove services
• Prepare an image
• Create a datastore
• Create a datastore version
HX111.3 Trove's Moving Parts

26. DEPLOYING TROVE
• Low maturity
• DevStack/Redstack
• Ubuntu packages in trusty (but not in Cloud Archive)
• Only client packages in RDO
• Puppet modules being worked on at eBay
HX111.3 Trove's Moving Parts

27. Working With Trove
HX111 OpenStack Database as a Service

28. GETTING STARTED
So we've installed Trove.
What's Next?
HX111.4 Working With Trove

29. LISTING DATASTORES
trove datastore -list
Lists currently configured datastores
HX111.4 Working With Trove

30. LISTING VERSIONS FOR A
DATASTORE
trove datastore -version -list <datastore -name>
Lists currently configured versions for a datastore
HX111.4 Working With Trove

31. GETTING DETAILS FOR A
DATASTORE VERSION
trove datastore -version -show
--datastore <name> <version -id>
HX111.4 Working With Trove

32. CREATING A DATASTORE
trove-manage datastore_update "<name >" ""
HX111.4 Working With Trove

33. CREATING A DATASTORE
VERSION
trove-manage datastore_version_update
"<name >"
"<versionname >"
"<type >"
"<imageid >"
"<packagelist >"
{0|1}
HX111.4 Working With Trove

34. SETTING A DEFAULT VERSION
FOR A DATASTORE
trove-manage datastore_update "<name >" "<versionname >"
HX111.4 Working With Trove

35. CREATING AN INSTANCE
trove create <instancename >
<flavor >
--size <size>
--datastore <name>
--datastore_version <versionname >
--nic net-id=<net-id>
HX111.4 Working With Trove

36. WHAT DOES TROVE CREATE DO?
• Allocate persistent storage space (through Cinder)
• Create a new guest (through Nova)
HX111.4 Working With Trove

37. WHAT HAPPENS WHEN THE
INSTANCE BOOTS?
• cloud-init (as always)
• trove-guestagent
HX111.4 Working With Trove

38. LISTING CONFIGURED
INSTANCES
trove list
HX111.4 Working With Trove

39. GETTING DETAILS FOR AN
INSTANCE
trove show <instanceid >
HX111.4 Working With Trove

40. LISTING DATABASES IN AN
INSTANCE
trove database -list <instanceid >
HX111.4 Working With Trove

41. CREATING A DATABASE
trove database -create <instanceid > <dbname >
HX111.4 Working With Trove

42. CREATING A USER AND
ENABLING DATABASE ACCESS
trove user-create
<instanceid >
<username >
<password >
[--host=<host >]
[--databases=<db1>,<db2>,...]
HX111.4 Working With Trove

43. GRANTING USER ACCESS
trove user-grant-access
<instanceid >
<username >
<password >
<db1>,<db2>,...
[--host=<host >]
HX111.4 Working With Trove

44. ENABLING ROOT ACCESS
trove root-enable
<instanceid >
HX111.4 Working With Trove

45. CONFIGURATION GROUPS
Configuration groups allow DBAs to set configuration options,
in bulk, on one or multiple databases
HX111.4 Working With Trove

46. CREATING A CONFIGURATION
GROUP
trove configuration -create <name>
'{ <values > }'
[--description <description >]
HX111.4 Working With Trove

47. SETTING PARAMETERS
Parameters are a JSON dictionary
{ "<key>": "<string >", "<key>": <int>, ... }
HX111.4 Working With Trove

48. LISTING SUPPORTED
CONFIGURATION PARAMETERS
trove configuration -parameter -list <datastore -version -id>
HX111.4 Working With Trove

49. ATTACHING A CONFIGURATION
GROUP TO AN INSTANCE
trove configuration -attach
<configuration -group-id> <instance -id>
HX111.4 Working With Trove

50. DETACHING A CONFIGURATION
GROUP FROM AN INSTANCE
trove configuration -detach <instance -id>
HX111.4 Working With Trove

51. MODIFYING A CONFIGURATION
GROUP ON THE FLY
trove configuration -patch
<configuration -group-id>
'{ <values > }'
HX111.4 Working With Trove

52. FINDING INSTANCES FOR A
CONFIGURATION GROUP
trove configuration -instances <configuration -group-id>
HX111.4 Working With Trove

53. DELETING A CONFIGURATION
GROUP
trove configuration -delete <configuration -group-id>
HX111.4 Working With Trove

54. Summary
HX111 OpenStack Database as a Service

55. WHAT YOU LEARNED TODAY
Why DBaas?
• A step up the stack
• Almost everyone needs a database
• Cloud shifts control over infrastructure away from DBA
HX111.5 Summary

56. WHAT YOU LEARNED TODAY
What's Trove?
• DBaaS within the OpenStack Framework
• Originally "Red Dwarf"
• Integrated for Icehouse
• Backed by HP, Rackspace, eBay, Tesora
HX111.5 Summary

57. WHAT YOU LEARNED TODAY
Trove's Moving Parts
• Builds on OpenStack Nova, Glance, Neutron, Cinder
• Contains API, task manager, guest agent
• Datastores, Versions, Instances, Databases
• Deployment Considerations
HX111.5 Summary

58. WHAT YOU LEARNED TODAY
Working with Trove
• Creating an instance
• Creating a database
• Assigning users and granting permissions
• Using configuration groups
HX111.5 Summary