# PodCertificateRequest v1alpha1

PodCertificateRequest v1alpha1PodCertificateRequest encodes a pod requesting a certificate from a given signer.apiVersion: certificates.k8s.io/v1alpha1import "k8s.io/api/certificates/v1alpha1"PodCertificateRequestPodCertificateRequest encodes a pod requesting a certificate from a given signer.Kubelets use this API to implement podCertificate projected volumesapiVersion: certificates.k8s.io/v1alpha1kind: PodCertificateRequestmetadata (ObjectMeta)metadata contains the object metadata.spec (PodCertificateRequestSpec), requiredspec contains the details about the certificate being requested.status (PodCertificateRequestStatus)status contains the issued certificate, and a standard set of conditions.PodCertificateRequestSpecPodCertificateRequestSpec describes the certificate request. All fields are immutable after creation.nodeName (string), requirednodeName is the name of the node the pod is assigned to.nodeUID (string), requirednodeUID is the UID of the node the pod is assigned to.pkixPublicKey ([]byte), requiredpkixPublicKey is the PKIX-serialized public key the signer will issue the certificate to.The key must be one of RSA3072, RSA4096, ECDSAP256, ECDSAP384, ECDSAP521, or ED25519. Note that this list may be expanded in the future.Signer implementations do not need to support all key types supported by kube-apiserver and kubelet. If a signer does not support the key type used for a given PodCertificateRequest, it must deny the request by setting a status.conditions entry with a type of "Denied" and a reason of "UnsupportedKeyType". It may also suggest a key type that it does support in the message field.podName (string), requiredpodName is the name of the pod into which the certificate will be mounted.podUID (string), requiredpodUID is the UID of the pod into which the certificate will be mounted.proofOfPossession ([]byte), requiredproofOfPossession proves that the requesting kubelet holds the private key corresponding to pkixPublicKey.It is contructed by signing the ASCII bytes of the pod's UID using pkixPublicKey.kube-apiserver validates the proof of possession during creation of the PodCertificateRequest.If the key is an RSA key, then the signature is over the ASCII bytes of the pod UID, using RSASSA-PSS from RFC 8017 (as implemented by the golang function crypto/rsa.SignPSS with nil options).If the key is an ECDSA key, then the signature is as described by SEC 1, Version 2.0 (as implemented by the golang library function crypto/ecdsa.SignASN1)If the key is an ED25519 key, the the signature is as described by the ED25519 Specification (as implemented by the golang library crypto/ed25519.Sign).serviceAccountName (string), requiredserviceAccountName is the name of the service account the pod is running as.serviceAccountUID (string), requiredserviceAccountUID is the UID of the service account the pod is running as.signerName (string), requiredsignerName indicates the requested signer.All signer names beginning with kubernetes.io are reserved for use by the Kubernetes project. There is currently one well-known signer documented by the Kubernetes project, kubernetes.io/kube-apiserver-client-pod, which will issue client certificates understood by kube-apiserver. It is currently unimplemented.maxExpirationSeconds (int32)maxExpirationSeconds is the maximum lifetime permitted for the certificate.If omitted, kube-apiserver will set it to 86400(24 hours). kube-apiserver will reject values shorter than 3600 (1 hour). The maximum allowable value is 7862400 (91 days).The signer implementation is then free to issue a certificate with any lifetime shorter than MaxExpirationSeconds, but no shorter than 3600 seconds (1 hour). This constraint is enforced by kube-apiserver. kubernetes.io signers will never issue certificates with a lifetime longer than 24 hours.PodCertificateRequestStatusPodCertificateRequestStatus describes the status of the request, and holds the certificate data if the request is issued.beginRefreshAt (Time)beginRefreshAt is the time at which the kubelet should begin trying to refresh the certificate. This field is set via the /status subresource, and must be set at the same time as certificateChain. Once populated, this field is immutable.This field is only a hint. Kubelet may start refreshing before or after this time if necessary.Time is a wrapper around time.Time which supports correct marshaling to YAML and JSON. Wrappers are provided for many of the factory methods that the time package offers.certificateChain (string)certificateChain is populated with an issued certificate by the signer. This field is set via the /status subresource. Once populated, this field is immutable.If the certificate signing request is denied, a condition of type "Denied" is added and this field remains empty. If the signer cannot issue the certificate, a condition of type "Failed" is added and this field remains empty.Validation requirements:certificateChain must consist of one or more PEM-formatted certificates.Each entry must be a valid PEM-wrapped, DER-encoded ASN.1 Certificate as described in section 4 of RFC5280.If more than one block is present, and the definition of the requested spec.signerName does not indicate otherwise, the first block is the issued certificate, and subsequent blocks should be treated as intermediate certificates and presented in TLS handshakes. When projecting the chain into a pod volume, kubelet will drop any data in-between the PEM blocks, as well as any PEM block headers.conditions ([]Condition)Patch strategy: merge on key typeMap: unique values on key type will be kept during a mergeconditions applied to the request.The types "Issued", "Denied", and "Failed" have special handling. At most one of these conditions may be present, and they must have status "True".If the request is denied with Reason=UnsupportedKeyType, the signer may suggest a key type that will work in the message field.Condition contains details for one aspect of the current state of this API Resource.conditions.lastTransitionTime (Time), requiredlastTransitionTime is the last time the condition transitioned from one status to another. This should be when the underlying condition changed. If that is not known, then using the time when the API field changed is acceptable.Time is a wrapper around time.Time which supports correct marshaling to YAML and JSON. Wrappers are provided for many of the factory methods that the time package offers.conditions.message (string), requiredmessage is a human readable message indicating details about the transition. This may be an empty string.conditions.reason (string), requiredreason contains a programmatic identifier indicating the reason for the condition's last transition. Producers of specific condition types may define expected values and meanings for this field, and whether the values are considered a guaranteed API. The value should be a CamelCase string. This field may not be empty.conditions.status (string), requiredstatus of the condition, one of True, False, Unknown.conditions.type (string), requiredtype of condition in CamelCase or in foo.example.com/CamelCase.conditions.observedGeneration (int64)observedGeneration represents the .metadata.generation that the condition was set based upon. For instance, if .metadata.generation is currently 12, but the .status.conditions[x].observedGeneration is 9, the condition is out of date with respect to the current state of the instance.notAfter (Time)notAfter is the time at which the certificate expires. The value must be the same as the notAfter value in the leaf certificate in certificateChain. This field is set via the /status subresource. Once populated, it is immutable. The signer must set this field at the same time it sets certificateChain.Time is a wrapper around time.Time which supports correct marshaling to YAML and JSON. Wrappers are provided for many of the factory methods that the time package offers.notBefore (Time)notBefore is the time at which the certificate becomes valid. The value must be the same as the notBefore value in the leaf certificate in certificateChain. This field is set via the /status subresource. Once populated, it is immutable. The signer must set this field at the same time it sets certificateChain.Time is a wrapper around time.Time which supports correct marshaling to YAML and JSON. Wrappers are provided for many of the factory methods that the time package offers.PodCertificateRequestListPodCertificateRequestList is a collection of PodCertificateRequest objectsapiVersion: certificates.k8s.io/v1alpha1kind: PodCertificateRequestListmetadata (ListMeta)metadata contains the list metadata.items ([]PodCertificateRequest), requireditems is a collection of PodCertificateRequest objectsOperationsget read the specified PodCertificateRequestHTTP RequestGET /apis/certificates.k8s.io/v1alpha1/namespaces/{namespace}/podcertificaterequests/{name}Parametersname (in path): string, requiredname of the PodCertificateRequestnamespace (in path): string, requirednamespacepretty (in query): stringprettyResponse200 (PodCertificateRequest): OK401: Unauthorizedget read status of the specified PodCertificateRequestHTTP RequestGET /apis/certificates.k8s.io/v1alpha1/namespaces/{namespace}/podcertificaterequests/{name}/statusParametersname (in path): string, requiredname of the PodCertificateRequestnamespace (in path): string, requirednamespacepretty (in query): stringprettyResponse200 (PodCertificateRequest): OK401: Unauthorizedlist list or watch objects of kind PodCertificateRequestHTTP RequestGET /apis/certificates.k8s.io/v1alpha1/namespaces/{namespace}/podcertificaterequestsParametersnamespace (in path): string, requirednamespaceallowWatchBookmarks (in query): booleanallowWatchBookmarkscontinue (in query): stringcontinuefieldSelector (in query): stringfieldSelectorlabelSelector (in query): stringlabelSelectorlimit (in query): integerlimitpretty (in query): stringprettyresourceVersion (in query): stringresourceVersionresourceVersionMatch (in query): stringresourceVersionMatchsendInitialEvents (in query): booleansendInitialEventstimeoutSeconds (in query): integertimeoutSecondswatch (in query): booleanwatchResponse200 (PodCertificateRequestList): OK401: Unauthorizedlist list or watch objects of kind PodCertificateRequestHTTP RequestGET /apis/certificates.k8s.io/v1alpha1/podcertificaterequestsParametersallowWatchBookmarks (in query): booleanallowWatchBookmarkscontinue (in query): stringcontinuefieldSelector (in query): stringfieldSelectorlabelSelector (in query): stringlabelSelectorlimit (in query): integerlimitpretty (in query): stringprettyresourceVersion (in query): stringresourceVersionresourceVersionMatch (in query): stringresourceVersionMatchsendInitialEvents (in query): booleansendInitialEventstimeoutSeconds (in query): integertimeoutSecondswatch (in query): booleanwatchResponse200 (PodCertificateRequestList): OK401: Unauthorizedcreate create a PodCertificateRequestHTTP RequestPOST /apis/certificates.k8s.io/v1alpha1/namespaces/{namespace}/podcertificaterequestsParametersnamespace (in path): string, requirednamespacebody: PodCertificateRequest, requireddryRun (in query): stringdryRunfieldManager (in query): stringfieldManagerfieldValidation (in query): stringfieldValidationpretty (in query): stringprettyResponse200 (PodCertificateRequest): OK201 (PodCertificateRequest): Created202 (PodCertificateRequest): Accepted401: Unauthorizedupdate replace the specified PodCertificateRequestHTTP RequestPUT /apis/certificates.k8s.io/v1alpha1/namespaces/{namespace}/podcertificaterequests/{name}Parametersname (in path): string, requiredname of the PodCertificateRequestnamespace (in path): string, requirednamespacebody: PodCertificateRequest, requireddryRun (in query): stringdryRunfieldManager (in query): stringfieldManagerfieldValidation (in query): stringfieldValidationpretty (in query): stringprettyResponse200 (PodCertificateRequest): OK201 (PodCertificateRequest): Created401: Unauthorizedupdate replace status of the specified PodCertificateRequestHTTP RequestPUT /apis/certificates.k8s.io/v1alpha1/namespaces/{namespace}/podcertificaterequests/{name}/statusParametersname (in path): string, requiredname of the PodCertificateRequestnamespace (in path): string, requirednamespacebody: PodCertificateRequest, requireddryRun (in query): stringdryRunfieldManager (in query): stringfieldManagerfieldValidation (in query): stringfieldValidationpretty (in query): stringprettyResponse200 (PodCertificateRequest): OK201 (PodCertificateRequest): Created401: Unauthorizedpatch partially update the specified PodCertificateRequestHTTP RequestPATCH /apis/certificates.k8s.io/v1alpha1/namespaces/{namespace}/podcertificaterequests/{name}Parametersname (in path): string, requiredname of the PodCertificateRequestnamespace (in path): string, requirednamespacebody: Patch, requireddryRun (in query): stringdryRunfieldManager (in query): stringfieldManagerfieldValidation (in query): stringfieldValidationforce (in query): booleanforcepretty (in query): stringprettyResponse200 (PodCertificateRequest): OK201 (PodCertificateRequest): Created401: Unauthorizedpatch partially update status of the specified PodCertificateRequestHTTP RequestPATCH /apis/certificates.k8s.io/v1alpha1/namespaces/{namespace}/podcertificaterequests/{name}/statusParametersname (in path): string, requiredname of the PodCertificateRequestnamespace (in path): string, requirednamespacebody: Patch, requireddryRun (in query): stringdryRunfieldManager (in query): stringfieldManagerfieldValidation (in query): stringfieldValidationforce (in query): booleanforcepretty (in query): stringprettyResponse200 (PodCertificateRequest): OK201 (PodCertificateRequest): Created401: Unauthorizeddelete delete a PodCertificateRequestHTTP RequestDELETE /apis/certificates.k8s.io/v1alpha1/namespaces/{namespace}/podcertificaterequests/{name}Parametersname (in path): string, requiredname of the PodCertificateRequestnamespace (in path): string, requirednamespacebody: DeleteOptionsdryRun (in query): stringdryRungracePeriodSeconds (in query): integergracePeriodSecondsignoreStoreReadErrorWithClusterBreakingPotential (in query): booleanignoreStoreReadErrorWithClusterBreakingPotentialpretty (in query): stringprettypropagationPolicy (in query): stringpropagationPolicyResponse200 (Status): OK202 (Status): Accepted401: Unauthorizeddeletecollection delete collection of PodCertificateRequestHTTP RequestDELETE /apis/certificates.k8s.io/v1alpha1/namespaces/{namespace}/podcertificaterequestsParametersnamespace (in path): string, requirednamespacebody: DeleteOptionscontinue (in query): stringcontinuedryRun (in query): stringdryRunfieldSelector (in query): stringfieldSelectorgracePeriodSeconds (in query): integergracePeriodSecondsignoreStoreReadErrorWithClusterBreakingPotential (in query): booleanignoreStoreReadErrorWithClusterBreakingPotentiallabelSelector (in query): stringlabelSelectorlimit (in query): integerlimitpretty (in query): stringprettypropagationPolicy (in query): stringpropagationPolicyresourceVersion (in query): stringresourceVersionresourceVersionMatch (in query): stringresourceVersionMatchsendInitialEvents (in query): booleansendInitialEventstimeoutSeconds (in query): integertimeoutSecondsResponse200 (Status): OK401: UnauthorizedThis page is automatically generated.If you plan to report an issue with this page, mention that the page is auto-generated in your issue description. The fix may need to happen elsewhere in the Kubernetes project.