clusto-query performs arbitrary boolean queries against clusto. It is available under the ISC license, which you can find under LICENSE.txt and requires the python clusto libraries.

Infix expression operators are the following:

Operator	Aliases	Meaning
=	is	equality
!=	isnt, <>	inequality
<=	le	less than or equal to
<	lt	less than
>=	ge	greater than or equal to
>	gt	greater than
^	startswith	string starts with
,	endswith	string ends with
contains		string contains
in_cidr		IP address is in CIDR range

Additionally, there are boolean operators and, or, and - (set subtraction)

some keywords (pool, datacenter, clusto_type, and name) can be directly queried anything that's an "Attribute" must be prefixed with attr

Here's an example query:

clusto_type = server and
(attr system.cpucount >= 15 or system.memory >= 32760)
and datacenter = peak-mpl1'

This query fetches all servers with more than 16 cores or 32768 MB of RAM located in the "peak-mlp1" datacenter. Neato!

Note that I put in "15" instead of "16" intentionally; clusto's cpu counting is off-by-one. That was fun. Let's go again:

clusto_type contains "server" and
(attr nagios.disabled = 1 - hostname endswith peak2)

This one finds all servers that are disabled in nagios and do not have a hostname that ends in peak2.

Quoting and parens work the way you expect them to.