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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

NameTypeOperatorsDescription
_ctxjsonbSteampipe context in JSON form, e.g. connection_name.
annotationsjsonbAnnotations is an unstructured key value map stored with a resource that may be set by external tools to store and retrieve arbitrary metadata.
context_nametextKubectl config context name.
creation_timestamptimestamp with time zoneCreationTimestamp is a timestamp representing the server time when this object was created.
deletion_grace_period_secondsbigintNumber 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_timestamptimestamp with time zoneDeletionTimestamp is RFC 3339 date and time at which this resource will be deleted.
end_linebigintThe path to the manifest file.
finalizersjsonbMust 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_nametextGenerateName is an optional prefix, used by the server, to generate a unique name ONLY IF the Name field has not been provided.
generationbigintA sequence number representing a specific generation of the desired state.
labelsjsonbMap 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_unavailabletextAn eviction is allowed if at most 'maxAvailable' pods selected by 'selector' will still be unavailable after the eviction.
min_availabletextAn eviction is allowed if at least 'minAvailable' pods selected by 'selector' will still be available after the eviction.
nametextName of the object. Name must be unique within a namespace.
namespacetextNamespace defines the space within which each name must be unique.
owner_referencesjsonbList 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.
pathtextThe path to the manifest file.
resource_versiontextAn opaque value that represents the internal version of this object that can be used by clients to determine when objects have changed.
selectorjsonbLabel query over pods whose evictions are managed by the disruption budget.
source_typetextThe 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_linebigintThe path to the manifest file.
tagsjsonbA map of tags for the resource. This includes both labels and annotations.
titletextTitle of the resource.
uidtextUID 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