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Mastering Puppet Second Edition

You're reading from   Mastering Puppet Second Edition Master Puppet for configuration management of your systems in an enterprise deployment

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Product type Paperback
Published in Feb 2016
Publisher
ISBN-13 9781785888106
Length 276 pages
Edition 2nd Edition
Tools
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Author (1):
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Thomas Uphill Thomas Uphill
Author Profile Icon Thomas Uphill
Thomas Uphill
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Toc

Putting it all together


Any resource can be exported, including defined types and your own custom types. Tags may be used to limit the set of exported resources collected by a collector. Tags may include local variables, facts, and custom facts. Using exported resources, defined types, and custom facts, it is possible to have Puppet generate complete interactions without intervention (automatically).

As an abstract example, think of any clustered service where members of a cluster need to know about the other members of the cluster. You could define a custom fact, clustername, that defines the name of the cluster based on information either on the node or in a central Configuration Management Database (CMDB).

Note

CMDBs are the data warehouses of an organization. Examples of CMDBs include OneCMDB, Itop, or BMC Atrium.

You would then create a cluster module, which would export firewall rules to allow access from each node. The nodes in the cluster would collect all the exported rules based on...

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