turbot/kubernetes
steampipe plugin install kubernetes

Table: kubernetes_cluster_role_binding - Query Kubernetes Cluster Role Bindings using SQL

A Kubernetes Cluster Role Binding binds a role to subjects. Subjects can be groups, users, or service accounts. Cluster Role Binding grants permissions to users at the cluster level, which includes all namespaces.

Table Usage Guide

The kubernetes_cluster_role_binding table provides insights into Cluster Role Bindings within Kubernetes. As a DevOps engineer, explore binding-specific details through this table, including subjects, role references, and associated metadata. Utilize it to uncover information about bindings, such as the roles binded to specific subjects, the namespaces of the roles, and the verification of role references.

Examples

Basic Info

Explore which roles are bound to different subjects in your Kubernetes cluster. This allows you to gain insights into the permissions and access levels within your system, assisting in managing security and access control.

select
name,
role_name,
role_kind,
jsonb_pretty(subjects) as subjects,
creation_timestamp
from
kubernetes_cluster_role_binding
order by
name;
select
name,
role_name,
role_kind,
subjects,
creation_timestamp
from
kubernetes_cluster_role_binding
order by
name;

Get details subject and role details for bindings

Uncover the details of role bindings within a Kubernetes cluster. This query is particularly useful for administrators who want to keep track of roles and associated subjects in a systematic order, thereby facilitating efficient management of access and permissions within the cluster.

select
name as binding_name,
role_name,
subject ->> 'name' as subject_name,
subject ->> 'namespace' as subject_namespace,
subject ->> 'apiGroup' as subject_api_group,
subject ->> 'kind' as subject_kind
from
kubernetes_cluster_role_binding,
jsonb_array_elements(subjects) as subject
order by
role_name,
subject_name;
select
name as binding_name,
role_name,
json_extract(subject.value, '$.name') as subject_name,
json_extract(subject.value, '$.namespace') as subject_namespace,
json_extract(subject.value, '$.apiGroup') as subject_api_group,
json_extract(subject.value, '$.kind') as subject_kind
from
kubernetes_cluster_role_binding,
json_each(subjects) as subject
order by
role_name,
subject_name;

Get cluster role bindings associated for each role

Discover the segments that have specific role bindings in a Kubernetes cluster, which can aid in understanding the distribution and assignment of roles across the cluster. This can be particularly useful for managing permissions and access controls within the system.

select
role_name,
jsonb_agg(name) as bindings
from
kubernetes_cluster_role_binding
group by
role_name;
select
role_name,
json_group_array(name) as bindings
from
kubernetes_cluster_role_binding
group by
role_name;

List manifest resources

Assess the elements within your Kubernetes cluster to understand the relationship and permissions between different roles and resources. This allows you to maintain a secure and well-organized system by identifying any irregularities or potential vulnerabilities in role assignments.

select
name,
role_name,
role_kind,
jsonb_pretty(subjects) as subjects,
path
from
kubernetes_cluster_role_binding
where
path is not null
order by
name;
select
name,
role_name,
role_kind,
subjects,
path
from
kubernetes_cluster_role_binding
where
path is not null
order by
name;

Schema for kubernetes_cluster_role_binding

NameTypeOperatorsDescription
_ctxjsonbSteampipe context in JSON form.
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.
nametextName of the object. Name must be unique within a namespace.
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.
role_api_grouptextThe group for the referenced role.
role_kindtextType of the role refrenced must be one of ClusterRole or Role.
role_nametextName of the cluster role for which access is granted to subjects.
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.
sp_connection_nametextSteampipe connection name.
sp_ctxjsonbSteampipe context in JSON form.
start_linebigintThe path to the manifest file.
subjectsjsonbList of references to the objects the role applies to.
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_cluster_role_binding