Beispiel #1
0
func createResourceQuota(client client.Interface, indexer cache.Indexer) admission.Interface {
	return &quota{
		Handler: admission.NewHandler(admission.Create, admission.Update),
		client:  client,
		indexer: indexer,
	}
}
func TestLimitRangerIgnoresSubresource(t *testing.T) {
	client := testclient.NewSimpleFake()
	indexer := cache.NewIndexer(cache.MetaNamespaceKeyFunc, cache.Indexers{"namespace": cache.MetaNamespaceIndexFunc})
	handler := &limitRanger{
		Handler:   admission.NewHandler(admission.Create, admission.Update),
		client:    client,
		limitFunc: Limit,
		indexer:   indexer,
	}

	limitRange := validLimitRangeNoDefaults()
	testPod := validPod("testPod", 1, api.ResourceRequirements{})

	indexer.Add(&limitRange)
	err := handler.Admit(admission.NewAttributesRecord(&testPod, "Pod", limitRange.Namespace, "testPod", "pods", "", admission.Update, nil))
	if err == nil {
		t.Errorf("Expected an error since the pod did not specify resource limits in its update call")
	}

	err = handler.Admit(admission.NewAttributesRecord(&testPod, "Pod", limitRange.Namespace, "testPod", "pods", "status", admission.Update, nil))
	if err != nil {
		t.Errorf("Should have ignored calls to any subresource of pod %v", err)
	}

}
Beispiel #3
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func createProvision(c client.Interface, store cache.Store) admission.Interface {
	return &provision{
		Handler: admission.NewHandler(admission.Create),
		client:  c,
		store:   store,
	}
}
Beispiel #4
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// NewLimitRanger returns an object that enforces limits based on the supplied limit function
func NewLimitRanger(client client.Interface, limitFunc LimitFunc) admission.Interface {
	lw := &cache.ListWatch{
		ListFunc: func() (runtime.Object, error) {
			return client.LimitRanges(api.NamespaceAll).List(labels.Everything())
		},
		WatchFunc: func(resourceVersion string) (watch.Interface, error) {
			return client.LimitRanges(api.NamespaceAll).Watch(labels.Everything(), fields.Everything(), resourceVersion)
		},
	}
	indexer, reflector := cache.NewNamespaceKeyedIndexerAndReflector(lw, &api.LimitRange{}, 0)
	reflector.Run()
	return &limitRanger{
		Handler:   admission.NewHandler(admission.Create, admission.Update),
		client:    client,
		limitFunc: limitFunc,
		indexer:   indexer,
	}
}
Beispiel #5
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// NewServiceAccount returns an admission.Interface implementation which limits admission of Pod CREATE requests based on the pod's ServiceAccount:
// 1. If the pod does not specify a ServiceAccount, it sets the pod's ServiceAccount to "default"
// 2. It ensures the ServiceAccount referenced by the pod exists
// 3. If LimitSecretReferences is true, it rejects the pod if the pod references Secret objects which the pod's ServiceAccount does not reference
// 4. If the pod does not contain any ImagePullSecrets, the ImagePullSecrets of the service account are added.
// 5. If MountServiceAccountToken is true, it adds a VolumeMount with the pod's ServiceAccount's api token secret to containers
func NewServiceAccount(cl client.Interface) *serviceAccount {
	serviceAccountsIndexer, serviceAccountsReflector := cache.NewNamespaceKeyedIndexerAndReflector(
		&cache.ListWatch{
			ListFunc: func() (runtime.Object, error) {
				return cl.ServiceAccounts(api.NamespaceAll).List(labels.Everything(), fields.Everything())
			},
			WatchFunc: func(resourceVersion string) (watch.Interface, error) {
				return cl.ServiceAccounts(api.NamespaceAll).Watch(labels.Everything(), fields.Everything(), resourceVersion)
			},
		},
		&api.ServiceAccount{},
		0,
	)

	tokenSelector := fields.SelectorFromSet(map[string]string{client.SecretType: string(api.SecretTypeServiceAccountToken)})
	secretsIndexer, secretsReflector := cache.NewNamespaceKeyedIndexerAndReflector(
		&cache.ListWatch{
			ListFunc: func() (runtime.Object, error) {
				return cl.Secrets(api.NamespaceAll).List(labels.Everything(), tokenSelector)
			},
			WatchFunc: func(resourceVersion string) (watch.Interface, error) {
				return cl.Secrets(api.NamespaceAll).Watch(labels.Everything(), tokenSelector, resourceVersion)
			},
		},
		&api.Secret{},
		0,
	)

	return &serviceAccount{
		Handler: admission.NewHandler(admission.Create),
		// TODO: enable this once we've swept secret usage to account for adding secret references to service accounts
		LimitSecretReferences: false,
		// Auto mount service account API token secrets
		MountServiceAccountToken: true,

		client:                   cl,
		serviceAccounts:          serviceAccountsIndexer,
		serviceAccountsReflector: serviceAccountsReflector,
		secrets:                  secretsIndexer,
		secretsReflector:         secretsReflector,
	}
}
Beispiel #6
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// NewLifecycle creates a new namespace lifecycle admission control handler
func NewLifecycle(c client.Interface) admission.Interface {
	store := cache.NewStore(cache.MetaNamespaceKeyFunc)
	reflector := cache.NewReflector(
		&cache.ListWatch{
			ListFunc: func() (runtime.Object, error) {
				return c.Namespaces().List(labels.Everything(), fields.Everything())
			},
			WatchFunc: func(resourceVersion string) (watch.Interface, error) {
				return c.Namespaces().Watch(labels.Everything(), fields.Everything(), resourceVersion)
			},
		},
		&api.Namespace{},
		store,
		0,
	)
	reflector.Run()
	return &lifecycle{
		Handler:            admission.NewHandler(admission.Create, admission.Delete),
		client:             c,
		store:              store,
		immortalNamespaces: util.NewStringSet(api.NamespaceDefault),
	}
}
Beispiel #7
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// NewDenyExecOnPrivileged creates a new admission controller that denies an exec operation on a privileged pod
func NewDenyExecOnPrivileged(client client.Interface) admission.Interface {
	return &denyExecOnPrivileged{
		Handler: admission.NewHandler(admission.Connect),
		client:  client,
	}
}
Beispiel #8
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// NewSecurityContextDeny creates a new instance of the SecurityContextDeny admission controller
func NewSecurityContextDeny(client client.Interface) admission.Interface {
	return &plugin{
		Handler: admission.NewHandler(admission.Create, admission.Update),
		client:  client,
	}
}