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kube-apiserver Audit Configuration (v1)

Resource Types

Event

Appears in:

Event captures all the information that can be included in an API audit log.

FieldDescription
apiVersion
string
audit.k8s.io/v1
kind
string
Event
level [Required]
Level

AuditLevel at which event was generated

auditID [Required]
k8s.io/apimachinery/pkg/types.UID

Unique audit ID, generated for each request.

stage [Required]
Stage

Stage of the request handling when this event instance was generated.

requestURI [Required]
string

RequestURI is the request URI as sent by the client to a server.

verb [Required]
string

Verb is the kubernetes verb associated with the request. For non-resource requests, this is the lower-cased HTTP method.

user [Required]
authentication/v1.UserInfo

Authenticated user information.

impersonatedUser
authentication/v1.UserInfo

Impersonated user information.

sourceIPs
[]string

Source IPs, from where the request originated and intermediate proxies. The source IPs are listed from (in order):

  1. X-Forwarded-For request header IPs
  2. X-Real-Ip header, if not present in the X-Forwarded-For list
  3. The remote address for the connection, if it doesn't match the last IP in the list up to here (X-Forwarded-For or X-Real-Ip). Note: All but the last IP can be arbitrarily set by the client.
userAgent
string

UserAgent records the user agent string reported by the client. Note that the UserAgent is provided by the client, and must not be trusted.

objectRef
ObjectReference

Object reference this request is targeted at. Does not apply for List-type requests, or non-resource requests.

responseStatus
meta/v1.Status

The response status, populated even when the ResponseObject is not a Status type. For successful responses, this will only include the Code and StatusSuccess. For non-status type error responses, this will be auto-populated with the error Message.

requestObject
k8s.io/apimachinery/pkg/runtime.Unknown

API object from the request, in JSON format. The RequestObject is recorded as-is in the request (possibly re-encoded as JSON), prior to version conversion, defaulting, admission or merging. It is an external versioned object type, and may not be a valid object on its own. Omitted for non-resource requests. Only logged at Request Level and higher.

responseObject
k8s.io/apimachinery/pkg/runtime.Unknown

API object returned in the response, in JSON. The ResponseObject is recorded after conversion to the external type, and serialized as JSON. Omitted for non-resource requests. Only logged at Response Level.

requestReceivedTimestamp
meta/v1.MicroTime

Time the request reached the apiserver.

stageTimestamp
meta/v1.MicroTime

Time the request reached current audit stage.

annotations
map[string]string

Annotations is an unstructured key value map stored with an audit event that may be set by plugins invoked in the request serving chain, including authentication, authorization and admission plugins. Note that these annotations are for the audit event, and do not correspond to the metadata.annotations of the submitted object. Keys should uniquely identify the informing component to avoid name collisions (e.g. podsecuritypolicy.admission.k8s.io/policy). Values should be short. Annotations are included in the Metadata level.

EventList

EventList is a list of audit Events.

FieldDescription
apiVersion
string
audit.k8s.io/v1
kind
string
EventList
metadata
meta/v1.ListMeta
No description provided.
items [Required]
[]Event
No description provided.

Policy

Appears in:

Policy defines the configuration of audit logging, and the rules for how different request categories are logged.

FieldDescription
apiVersion
string
audit.k8s.io/v1
kind
string
Policy
metadata
meta/v1.ObjectMeta

ObjectMeta is included for interoperability with API infrastructure.

Refer to the Kubernetes API documentation for the fields of the metadata field.
rules [Required]
[]PolicyRule

Rules specify the audit Level a request should be recorded at. A request may match multiple rules, in which case the FIRST matching rule is used. The default audit level is None, but can be overridden by a catch-all rule at the end of the list. PolicyRules are strictly ordered.

omitStages
[]Stage

OmitStages is a list of stages for which no events are created. Note that this can also be specified per rule in which case the union of both are omitted.

omitManagedFields
bool

OmitManagedFields indicates whether to omit the managed fields of the request and response bodies from being written to the API audit log. This is used as a global default - a value of 'true' will omit the managed fileds, otherwise the managed fields will be included in the API audit log. Note that this can also be specified per rule in which case the value specified in a rule will override the global default.

PolicyList

PolicyList is a list of audit Policies.

FieldDescription
apiVersion
string
audit.k8s.io/v1
kind
string
PolicyList
metadata
meta/v1.ListMeta
No description provided.
items [Required]
[]Policy
No description provided.

GroupResources

Appears in:

GroupResources represents resource kinds in an API group.

FieldDescription
group
string

Group is the name of the API group that contains the resources. The empty string represents the core API group.

resources
[]string

Resources is a list of resources this rule applies to.

For example: 'pods' matches pods. 'pods/log' matches the log subresource of pods. '' matches all resources and their subresources. 'pods/' matches all subresources of pods. '*/scale' matches all scale subresources.

If wildcard is present, the validation rule will ensure resources do not overlap with each other.

An empty list implies all resources and subresources in this API groups apply.

resourceNames
[]string

ResourceNames is a list of resource instance names that the policy matches. Using this field requires Resources to be specified. An empty list implies that every instance of the resource is matched.

Level

(Alias of string)

Appears in:

Level defines the amount of information logged during auditing

ObjectReference

Appears in:

ObjectReference contains enough information to let you inspect or modify the referred object.

FieldDescription
resource
string
No description provided.
namespace
string
No description provided.
name
string
No description provided.
uid
k8s.io/apimachinery/pkg/types.UID
No description provided.
apiGroup
string

APIGroup is the name of the API group that contains the referred object. The empty string represents the core API group.

apiVersion
string

APIVersion is the version of the API group that contains the referred object.

resourceVersion
string
No description provided.
subresource
string
No description provided.

PolicyRule

Appears in:

PolicyRule maps requests based off metadata to an audit Level. Requests must match the rules of every field (an intersection of rules).

FieldDescription
level [Required]
Level

The Level that requests matching this rule are recorded at.

users
[]string

The users (by authenticated user name) this rule applies to. An empty list implies every user.

userGroups
[]string

The user groups this rule applies to. A user is considered matching if it is a member of any of the UserGroups. An empty list implies every user group.

verbs
[]string

The verbs that match this rule. An empty list implies every verb.

resources
[]GroupResources

Resources that this rule matches. An empty list implies all kinds in all API groups.

namespaces
[]string

Namespaces that this rule matches. The empty string "" matches non-namespaced resources. An empty list implies every namespace.

nonResourceURLs
[]string

NonResourceURLs is a set of URL paths that should be audited. s are allowed, but only as the full, final step in the path. Examples: "/metrics" - Log requests for apiserver metrics "/healthz" - Log all health checks

omitStages
[]Stage

OmitStages is a list of stages for which no events are created. Note that this can also be specified policy wide in which case the union of both are omitted. An empty list means no restrictions will apply.

omitManagedFields
bool

OmitManagedFields indicates whether to omit the managed fields of the request and response bodies from being written to the API audit log.

  • a value of 'true' will drop the managed fields from the API audit log
  • a value of 'false' indicates that the managed fileds should be included in the API audit log Note that the value, if specified, in this rule will override the global default If a value is not specified then the global default specified in Policy.OmitManagedFields will stand.

Stage

(Alias of string)

Appears in:

Stage defines the stages in request handling that audit events may be generated.

Last modified May 04, 2022 at 10:32 PM PST: Config API reference for 1.24 (a5eeb338f1)