README_language.md

kubectl-sql

Query language

kubectl-sql uses Tree Search Language (TSL). TSL is a wonderful human readable filtering language.

https://github.com/yaacov/tree-search-language

Available Operators:

Operators	Example
=, ~=	name ~= '^test-'
like, ilike	phase ilike 'run%'
!=, !~	namespace != 'default'
>, <, <= and >=	created < 2020-01-15T00:00:00Z
is null, is not null	spec.domain.cpu.dedicatedCpuPlacement is not null
in	spec.domain.resources.limits.memory in (1Gi, 2Gi)
between	spec.domain.resources.limits.memory between 1Gi and 2Gi
or, and and not	name ~= 'virt-' and namespace != 'test-wegsb'
( )	phase = 'Running' and (namespace ~= 'cnv-' or namespace ~= 'virt-')

Available Math Operators:

Operators	Notes
+, -	Addition and Subtraction
*, /	Multiplication and Division
( )

Aliases:

Alias	Resource Path	Example
name	metadata.name
namespace	metadata.namespace	namespace ~= '^test-[a-z]+$'
labels	metadata.labels
annotations	metadata.annotations
created	creation timestamp
deleted	deletion timestamp
phase	status.phase	phase = 'Running'

SI Units:

Unit	Multiplier	Example
Ki	1024
Mi	1024^2	spec.containers[1].resources.requests.memory = 200Mi
Gi	1024^3
Ti	1024^4
Pi	1024^5

Booleans:

Example
status.conditions[1].status = true

Dates:

Format	Example
RFC3339	status.conditions[1].lastTransitionTime > 2020-02-20T11:12:38Z
Short date	created <= 2020-02-20

Arrays and lists:

kubectl-sql support resource paths that include lists by using the list index as a field key.

# Get the memory request for the first container.
kubectl-sql --all-namespaces "select * from pods where spec.containers[1].resources.requests.memory = 200Mi"