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Node PuppetDB query

A JavaScript version of the puppetdbquery module for puppet.

It is written using JISON and ast-types.

var puppetdbquery = require('puppetdbquery');
puppetdbquery.parse('(puppetversion="3.6.2" or puppetversion="3.7.0") and kernel=Linux');
// ["and",
//   ["or",
//     ["in","certname",
//       ["extract","certname",
//         ["select_fact_contents",
//           ["and", ["=","path", ["puppetversion"]],["=","value","3.6.2"]]]]],
//     ["in","certname",
//       ["extract","certname",
//         ["select_fact_contents",
//           ["and", ["=","path",["puppetversion"]],["=","value","3.7.0"]]]]]],
//   ["in","certname",
//     ["extract","certname",
//       ["select_fact_contents",
//         ["and",["=","path",["kernel"]],["=","value","Linux"]]]]]]

The find-nodes utility is included as an example on how to use it.

Syntax

Use fact=value to search for nodes where fact equals value. To search for structured facts use dots between each part of the fact path, for example foo.bar=baz.

Resources can be matched using the syntax type[title]{param=value}. The part in brackets is optional. You can also specify ~ before the title to do a regexp match on the title. Type names and class names are case insensitive. A resource can be preceded by @@ to match exported resources, the default is to only match "local" resources.

Strings can contain letters, numbers or the characters :-_ without needing to be quoted. If they contain any other characters they need to be quoted with single or double quotes. Use backslash () to escape quotes within a quoted string or double backslash for backslashes.

An unquoted number or the strings true/false will be interpreted as numbers and boolean values, use quotation marks around them to search for them as strings instead.

A @ sign before a string causes it to be interpreted as a date parsed with timespec. For example @"now - 2 hours".

A # sign can be used to do a subquery, against the nodes endpoint for example to query the report_timestamp, catalog_timestamp or facts_timestamp fields. For example #node.report_timestamp < @"now - 2 hours".

A subquery using the # sign can have a block of expressions instead of a single expression. For example #node { report_timestamp > @"now - 4 hours" and report_timestamp < @"now - 2 hours" }

A bare string without comparison operator will be treated as a regexp match against the certname.

Comparison operators

Op Meaning
= Equality
!= Not equal
~ Regexp match
!~ Not equal Regexp match
< Less than
=< Less than or equal
> Greater than
=> Greater than or equal

Logical operators

Op
not (unary op)
and
or

Shown in precedence order from highest to lowest. Use parenthesis to change order in an expression.

Query Examples

Nodes with package mysql-server and amd64 arcitecture

(package["mysql-server"] and architecture=amd64)

Nodes with the class Postgresql::Server and a version set to 9.3

class[postgresql::server]{version=9.3}

Nodes with 4 or 8 processors running Linux

(processorcount=4 or processorcount=8) and kernel=Linux

Nodes that haven't reported in the last 2 hours

#node.report_timestamp<@"now - 2 hours"

Required PuppetDB version

This requires at least PuppetDB 3.0.0 to work as it uses the v4 API not included in previous versions.

License

This is licensed under the Apache V2 license.

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a simple query language parser for PuppetDB

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