Table: kubernetes_pod_disruption_budget - Query Kubernetes Pod Disruption Budgets using SQL

Kubernetes Pod Disruption Budgets (PDB) is a feature that allows a Kubernetes user to specify the number of replicas that an application can tolerate having, relative to how many it is intended to have. It defines the minimum number of pods that an orchestrated app can have, without a voluntary disruption. PDB also provides a way to limit the disruptions of your application while the Kubernetes cluster manager balances the needs of your applications.

Table Usage Guide

The kubernetes_pod_disruption_budget table provides insights into the Pod Disruption Budgets within Kubernetes. As a DevOps engineer, explore details through this table, including the minimum available pods, selector details, and associated metadata. Utilize it to uncover information about the disruption allowance of the pods, such as the minimum number of pods an application can have, and the details of the selectors.

Examples

Basic info

Explore the minimum and maximum availability of resources within your Kubernetes environment. This query helps in managing resource allocation and ensuring smooth operation by identifying potential disruption areas.

select
  name,
  namespace,
  min_available,
  max_unavailable,
  selector
from
  kubernetes_pod_disruption_budget
order by
  namespace,
  name;

select
  name,
  namespace,
  min_available,
  max_unavailable,
  selector
from
  kubernetes_pod_disruption_budget
order by
  namespace,
  name;

List deployments and their matching PDB

Analyze the settings to understand the relationship between different deployments and their corresponding Pod Disruption Budgets (PDB) in a Kubernetes environment. This could be useful to ensure that the deployments are properly configured to handle disruptions, thereby enhancing system resilience.

select
  d.namespace,
  d.name,
  min_available,
  replicas
from
  kubernetes_pod_disruption_budget pdb
  inner join kubernetes_deployment d on d.selector = pdb.selector
  and d.namespace = pdb.namespace
order by
  d.namespace,
  d.name;

select
  d.namespace,
  d.name,
  min_available,
  replicas
from
  kubernetes_pod_disruption_budget as pdb
  join kubernetes_deployment as d on d.selector = pdb.selector
  and d.namespace = pdb.namespace
order by
  d.namespace,
  d.name;

List manifest resources

Explore which Kubernetes pod disruption budgets are available, focusing on those with a specified path. This helps in managing the application availability during voluntary disruptions.

select
  name,
  namespace,
  min_available,
  max_unavailable,
  selector,
  path
from
  kubernetes_pod_disruption_budget
where
  path is not null
order by
  namespace,
  name;

select
  name,
  namespace,
  min_available,
  max_unavailable,
  selector,
  path
from
  kubernetes_pod_disruption_budget
where
  path is not null
order by
  namespace,
  name;

Schema for kubernetes_pod_disruption_budget

Name	Type	Description
_ctx	jsonb	Steampipe context in JSON form, e.g. connection_name.
annotations	jsonb	Annotations is an unstructured key value map stored with a resource that may be set by external tools to store and retrieve arbitrary metadata.
context_name	text	Kubectl config context name.
creation_timestamp	timestamp with time zone	CreationTimestamp is a timestamp representing the server time when this object was created.
deletion_grace_period_seconds	bigint	Number of seconds allowed for this object to gracefully terminate before it will be removed from the system. Only set when deletionTimestamp is also set.
deletion_timestamp	timestamp with time zone	DeletionTimestamp is RFC 3339 date and time at which this resource will be deleted.
end_line	bigint	The path to the manifest file.
finalizers	jsonb	Must be empty before the object is deleted from the registry. Each entry is an identifier for the responsible component that will remove the entry from the list. If the deletionTimestamp of the object is non-nil, entries in this list can only be removed.
generate_name	text	GenerateName is an optional prefix, used by the server, to generate a unique name ONLY IF the Name field has not been provided.
generation	bigint	A sequence number representing a specific generation of the desired state.
labels	jsonb	Map of string keys and values that can be used to organize and categorize (scope and select) objects. May match selectors of replication controllers and services.
max_unavailable	text	An eviction is allowed if at most 'maxAvailable' pods selected by 'selector' will still be unavailable after the eviction.
min_available	text	An eviction is allowed if at least 'minAvailable' pods selected by 'selector' will still be available after the eviction.
name	text	Name of the object. Name must be unique within a namespace.
namespace	text	Namespace defines the space within which each name must be unique.
owner_references	jsonb	List of objects depended by this object. If ALL objects in the list have been deleted, this object will be garbage collected. If this object is managed by a controller, then an entry in this list will point to this controller, with the controller field set to true. There cannot be more than one managing controller.
path	text	The path to the manifest file.
resource_version	text	An opaque value that represents the internal version of this object that can be used by clients to determine when objects have changed.
selector	jsonb	Label query over pods whose evictions are managed by the disruption budget.
source_type	text	The source of the resource. Possible values are: deployed and manifest. If the resource is fetched from the spec file the value will be manifest.
start_line	bigint	The path to the manifest file.
tags	jsonb	A map of tags for the resource. This includes both labels and annotations.
title	text	Title of the resource.
uid	text	UID is the unique in time and space value for this object.

Export

This table is available as a standalone Exporter CLI. Steampipe exporters are stand-alone binaries that allow you to extract data using Steampipe plugins without a database.

You can download the tarball for your platform from the Releases page, but it is simplest to install them with the steampipe_export_installer.sh script:

/bin/sh -c "$(curl -fsSL https://steampipe.io/install/export.sh)" -- kubernetes

You can pass the configuration to the command with the --config argument:

steampipe_export_kubernetes --config '<your_config>' kubernetes_pod_disruption_budget