Class ValidatingWebhook

  • All Implemented Interfaces:
    com.marcnuri.yakc.model.Model

    public class ValidatingWebhook
    extends java.lang.Object
    implements com.marcnuri.yakc.model.Model
    ValidatingWebhook describes an admission webhook and the resources and operations it applies to.
    • Constructor Detail

      • ValidatingWebhook

        public ValidatingWebhook​(@NonNull
                                 @NonNull java.util.List<java.lang.String> admissionReviewVersions,
                                 @NonNull
                                 @NonNull WebhookClientConfig clientConfig,
                                 java.lang.String failurePolicy,
                                 java.util.List<MatchCondition> matchConditions,
                                 java.lang.String matchPolicy,
                                 @NonNull
                                 @NonNull java.lang.String name,
                                 LabelSelector namespaceSelector,
                                 LabelSelector objectSelector,
                                 java.util.List<RuleWithOperations> rules,
                                 @NonNull
                                 @NonNull java.lang.String sideEffects,
                                 java.lang.Number timeoutSeconds)
      • ValidatingWebhook

        public ValidatingWebhook()
    • Method Detail

      • getAdmissionReviewVersions

        @NonNull
        public @NonNull java.util.List<java.lang.String> getAdmissionReviewVersions()
        AdmissionReviewVersions is an ordered list of preferred `AdmissionReview` versions the Webhook expects. API server will try to use first version in the list which it supports. If none of the versions specified in this list supported by API server, validation will fail for this object. If a persisted webhook configuration specifies allowed versions and does not include any versions known to the API Server, calls to the webhook will fail and be subject to the failure policy.
      • getFailurePolicy

        public java.lang.String getFailurePolicy()
        FailurePolicy defines how unrecognized errors from the admission endpoint are handled - allowed values are Ignore or Fail. Defaults to Fail.
      • getMatchConditions

        public java.util.List<MatchCondition> getMatchConditions()
        MatchConditions is a list of conditions that must be met for a request to be sent to this webhook. Match conditions filter requests that have already been matched by the rules, namespaceSelector, and objectSelector. An empty list of matchConditions matches all requests. There are a maximum of 64 match conditions allowed.


        The exact matching logic is (in order):

        1. If ANY matchCondition evaluates to FALSE, the webhook is skipped.

        2. If ALL matchConditions evaluate to TRUE, the webhook is called.

        3. If any matchCondition evaluates to an error (but none are FALSE):

        - If failurePolicy=Fail, reject the request

        - If failurePolicy=Ignore, the error is ignored and the webhook is skipped


        This is a beta feature and managed by the AdmissionWebhookMatchConditions feature gate.

      • getMatchPolicy

        public java.lang.String getMatchPolicy()
        matchPolicy defines how the "rules" list is used to match incoming requests. Allowed values are "Exact" or "Equivalent".


        - Exact: match a request only if it exactly matches a specified rule. For example, if deployments can be modified via apps/v1, apps/v1beta1, and extensions/v1beta1, but "rules" only included `apiGroups:["apps"], apiVersions:["v1"], resources: ["deployments"]`, a request to apps/v1beta1 or extensions/v1beta1 would not be sent to the webhook.


        - Equivalent: match a request if modifies a resource listed in rules, even via another API group or version. For example, if deployments can be modified via apps/v1, apps/v1beta1, and extensions/v1beta1, and "rules" only included `apiGroups:["apps"], apiVersions:["v1"], resources: ["deployments"]`, a request to apps/v1beta1 or extensions/v1beta1 would be converted to apps/v1 and sent to the webhook.


        Defaults to "Equivalent"

      • getName

        @NonNull
        public @NonNull java.lang.String getName()
        The name of the admission webhook. Name should be fully qualified, e.g., imagepolicy.kubernetes.io, where "imagepolicy" is the name of the webhook, and kubernetes.io is the name of the organization. Required.
      • getNamespaceSelector

        public LabelSelector getNamespaceSelector()
      • getRules

        public java.util.List<RuleWithOperations> getRules()
        Rules describes what operations on what resources/subresources the webhook cares about. The webhook cares about an operation if it matches _any_ Rule. However, in order to prevent ValidatingAdmissionWebhooks and MutatingAdmissionWebhooks from putting the cluster in a state which cannot be recovered from without completely disabling the plugin, ValidatingAdmissionWebhooks and MutatingAdmissionWebhooks are never called on admission requests for ValidatingWebhookConfiguration and MutatingWebhookConfiguration objects.
      • getSideEffects

        @NonNull
        public @NonNull java.lang.String getSideEffects()
        SideEffects states whether this webhook has side effects. Acceptable values are: None, NoneOnDryRun (webhooks created via v1beta1 may also specify Some or Unknown). Webhooks with side effects MUST implement a reconciliation system, since a request may be rejected by a future step in the admission chain and the side effects therefore need to be undone. Requests with the dryRun attribute will be auto-rejected if they match a webhook with sideEffects == Unknown or Some.
      • getTimeoutSeconds

        public java.lang.Number getTimeoutSeconds()
        TimeoutSeconds specifies the timeout for this webhook. After the timeout passes, the webhook call will be ignored or the API call will fail based on the failure policy. The timeout value must be between 1 and 30 seconds. Default to 10 seconds.
      • setAdmissionReviewVersions

        public void setAdmissionReviewVersions​(@NonNull
                                               @NonNull java.util.List<java.lang.String> admissionReviewVersions)
        AdmissionReviewVersions is an ordered list of preferred `AdmissionReview` versions the Webhook expects. API server will try to use first version in the list which it supports. If none of the versions specified in this list supported by API server, validation will fail for this object. If a persisted webhook configuration specifies allowed versions and does not include any versions known to the API Server, calls to the webhook will fail and be subject to the failure policy.
      • setClientConfig

        public void setClientConfig​(@NonNull
                                    @NonNull WebhookClientConfig clientConfig)
      • setFailurePolicy

        public void setFailurePolicy​(java.lang.String failurePolicy)
        FailurePolicy defines how unrecognized errors from the admission endpoint are handled - allowed values are Ignore or Fail. Defaults to Fail.
      • setMatchConditions

        public void setMatchConditions​(java.util.List<MatchCondition> matchConditions)
        MatchConditions is a list of conditions that must be met for a request to be sent to this webhook. Match conditions filter requests that have already been matched by the rules, namespaceSelector, and objectSelector. An empty list of matchConditions matches all requests. There are a maximum of 64 match conditions allowed.


        The exact matching logic is (in order):

        1. If ANY matchCondition evaluates to FALSE, the webhook is skipped.

        2. If ALL matchConditions evaluate to TRUE, the webhook is called.

        3. If any matchCondition evaluates to an error (but none are FALSE):

        - If failurePolicy=Fail, reject the request

        - If failurePolicy=Ignore, the error is ignored and the webhook is skipped


        This is a beta feature and managed by the AdmissionWebhookMatchConditions feature gate.

      • setMatchPolicy

        public void setMatchPolicy​(java.lang.String matchPolicy)
        matchPolicy defines how the "rules" list is used to match incoming requests. Allowed values are "Exact" or "Equivalent".


        - Exact: match a request only if it exactly matches a specified rule. For example, if deployments can be modified via apps/v1, apps/v1beta1, and extensions/v1beta1, but "rules" only included `apiGroups:["apps"], apiVersions:["v1"], resources: ["deployments"]`, a request to apps/v1beta1 or extensions/v1beta1 would not be sent to the webhook.


        - Equivalent: match a request if modifies a resource listed in rules, even via another API group or version. For example, if deployments can be modified via apps/v1, apps/v1beta1, and extensions/v1beta1, and "rules" only included `apiGroups:["apps"], apiVersions:["v1"], resources: ["deployments"]`, a request to apps/v1beta1 or extensions/v1beta1 would be converted to apps/v1 and sent to the webhook.


        Defaults to "Equivalent"

      • setName

        public void setName​(@NonNull
                            @NonNull java.lang.String name)
        The name of the admission webhook. Name should be fully qualified, e.g., imagepolicy.kubernetes.io, where "imagepolicy" is the name of the webhook, and kubernetes.io is the name of the organization. Required.
      • setNamespaceSelector

        public void setNamespaceSelector​(LabelSelector namespaceSelector)
      • setObjectSelector

        public void setObjectSelector​(LabelSelector objectSelector)
      • setRules

        public void setRules​(java.util.List<RuleWithOperations> rules)
        Rules describes what operations on what resources/subresources the webhook cares about. The webhook cares about an operation if it matches _any_ Rule. However, in order to prevent ValidatingAdmissionWebhooks and MutatingAdmissionWebhooks from putting the cluster in a state which cannot be recovered from without completely disabling the plugin, ValidatingAdmissionWebhooks and MutatingAdmissionWebhooks are never called on admission requests for ValidatingWebhookConfiguration and MutatingWebhookConfiguration objects.
      • setSideEffects

        public void setSideEffects​(@NonNull
                                   @NonNull java.lang.String sideEffects)
        SideEffects states whether this webhook has side effects. Acceptable values are: None, NoneOnDryRun (webhooks created via v1beta1 may also specify Some or Unknown). Webhooks with side effects MUST implement a reconciliation system, since a request may be rejected by a future step in the admission chain and the side effects therefore need to be undone. Requests with the dryRun attribute will be auto-rejected if they match a webhook with sideEffects == Unknown or Some.
      • setTimeoutSeconds

        public void setTimeoutSeconds​(java.lang.Number timeoutSeconds)
        TimeoutSeconds specifies the timeout for this webhook. After the timeout passes, the webhook call will be ignored or the API call will fail based on the failure policy. The timeout value must be between 1 and 30 seconds. Default to 10 seconds.
      • equals

        public boolean equals​(java.lang.Object o)
        Overrides:
        equals in class java.lang.Object
      • canEqual

        protected boolean canEqual​(java.lang.Object other)
      • hashCode

        public int hashCode()
        Overrides:
        hashCode in class java.lang.Object
      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object