Golang field.Invalid函数代码示例

// ValidateEvent makes sure that the event makes sense.
func ValidateEvent(event *api.Event) field.ErrorList {
	allErrs := field.ErrorList{}

	// Make sure event.Namespace and the involvedObject.Namespace agree
	if len(event.InvolvedObject.Namespace) == 0 {
		// event.Namespace must also be empty (or "default", for compatibility with old clients)
		if event.Namespace != api.NamespaceNone && event.Namespace != api.NamespaceDefault {
			allErrs = append(allErrs, field.Invalid(field.NewPath("involvedObject", "namespace"), event.InvolvedObject.Namespace, "does not match event.namespace"))
		}
	} else {
		// event namespace must match
		if event.Namespace != event.InvolvedObject.Namespace {
			allErrs = append(allErrs, field.Invalid(field.NewPath("involvedObject", "namespace"), event.InvolvedObject.Namespace, "does not match event.namespace"))
		}
	}

	// For kinds we recognize, make sure involvedObject.Namespace is set for namespaced kinds
	if namespaced, err := isNamespacedKind(event.InvolvedObject.Kind, event.InvolvedObject.APIVersion); err == nil {
		if namespaced && len(event.InvolvedObject.Namespace) == 0 {
			allErrs = append(allErrs, field.Required(field.NewPath("involvedObject", "namespace"), fmt.Sprintf("required for kind %s", event.InvolvedObject.Kind)))
		}
		if !namespaced && len(event.InvolvedObject.Namespace) > 0 {
			allErrs = append(allErrs, field.Invalid(field.NewPath("involvedObject", "namespace"), event.InvolvedObject.Namespace, fmt.Sprintf("not allowed for kind %s", event.InvolvedObject.Kind)))
		}
	}

	for _, msg := range validation.IsDNS1123Subdomain(event.Namespace) {
		allErrs = append(allErrs, field.Invalid(field.NewPath("namespace"), event.Namespace, msg))
	}
	return allErrs
}

func ValidatePodSecurityPolicySpecificAnnotations(annotations map[string]string, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}

	if p := annotations[apparmor.DefaultProfileAnnotationKey]; p != "" {
		if err := apparmor.ValidateProfileFormat(p); err != nil {
			allErrs = append(allErrs, field.Invalid(fldPath.Key(apparmor.DefaultProfileAnnotationKey), p, err.Error()))
		}
	}
	if allowed := annotations[apparmor.AllowedProfilesAnnotationKey]; allowed != "" {
		for _, p := range strings.Split(allowed, ",") {
			if err := apparmor.ValidateProfileFormat(p); err != nil {
				allErrs = append(allErrs, field.Invalid(fldPath.Key(apparmor.AllowedProfilesAnnotationKey), allowed, err.Error()))
			}
		}
	}

	sysctlAnnotation := annotations[extensions.SysctlsPodSecurityPolicyAnnotationKey]
	sysctlFldPath := fldPath.Key(extensions.SysctlsPodSecurityPolicyAnnotationKey)
	sysctls, err := extensions.SysctlsFromPodSecurityPolicyAnnotation(sysctlAnnotation)
	if err != nil {
		allErrs = append(allErrs, field.Invalid(sysctlFldPath, sysctlAnnotation, err.Error()))
	} else {
		allErrs = append(allErrs, validatePodSecurityPolicySysctls(sysctlFldPath, sysctls)...)
	}

	if p := annotations[seccomp.DefaultProfileAnnotationKey]; p != "" {
		allErrs = append(allErrs, apivalidation.ValidateSeccompProfile(p, fldPath.Key(seccomp.DefaultProfileAnnotationKey))...)
	}
	if allowed := annotations[seccomp.AllowedProfilesAnnotationKey]; allowed != "" {
		for _, p := range strings.Split(allowed, ",") {
			allErrs = append(allErrs, apivalidation.ValidateSeccompProfile(p, fldPath.Key(seccomp.AllowedProfilesAnnotationKey))...)
		}
	}
	return allErrs
}

func validateIngressRules(ingressRules []extensions.IngressRule, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}
	if len(ingressRules) == 0 {
		return append(allErrs, field.Required(fldPath, ""))
	}
	for i, ih := range ingressRules {
		if len(ih.Host) > 0 {
			if isIP := (net.ParseIP(ih.Host) != nil); isIP {
				allErrs = append(allErrs, field.Invalid(fldPath.Index(i).Child("host"), ih.Host, "must be a DNS name, not an IP address"))
			}
			// TODO: Ports and ips are allowed in the host part of a url
			// according to RFC 3986, consider allowing them.
			if strings.Contains(ih.Host, "*") {
				for _, msg := range validation.IsWildcardDNS1123Subdomain(ih.Host) {
					allErrs = append(allErrs, field.Invalid(fldPath.Index(i).Child("host"), ih.Host, msg))
				}
				continue
			}
			for _, msg := range validation.IsDNS1123Subdomain(ih.Host) {
				allErrs = append(allErrs, field.Invalid(fldPath.Index(i).Child("host"), ih.Host, msg))
			}
		}
		allErrs = append(allErrs, validateIngressRuleValue(&ih.IngressRuleValue, fldPath.Index(0))...)
	}
	return allErrs
}

// ValidateStatefulSetSpec tests if required fields in the StatefulSet spec are set.
func ValidateStatefulSetSpec(spec *apps.StatefulSetSpec, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}

	allErrs = append(allErrs, apivalidation.ValidateNonnegativeField(int64(spec.Replicas), fldPath.Child("replicas"))...)
	if spec.Selector == nil {
		allErrs = append(allErrs, field.Required(fldPath.Child("selector"), ""))
	} else {
		allErrs = append(allErrs, unversionedvalidation.ValidateLabelSelector(spec.Selector, fldPath.Child("selector"))...)
		if len(spec.Selector.MatchLabels)+len(spec.Selector.MatchExpressions) == 0 {
			allErrs = append(allErrs, field.Invalid(fldPath.Child("selector"), spec.Selector, "empty selector is not valid for statefulset."))
		}
	}

	selector, err := metav1.LabelSelectorAsSelector(spec.Selector)
	if err != nil {
		allErrs = append(allErrs, field.Invalid(fldPath.Child("selector"), spec.Selector, ""))
	} else {
		allErrs = append(allErrs, ValidatePodTemplateSpecForStatefulSet(&spec.Template, selector, fldPath.Child("template"))...)
	}

	if spec.Template.Spec.RestartPolicy != api.RestartPolicyAlways {
		allErrs = append(allErrs, field.NotSupported(fldPath.Child("template", "spec", "restartPolicy"), spec.Template.Spec.RestartPolicy, []string{string(api.RestartPolicyAlways)}))
	}

	return allErrs
}

func ValidateResourceRequirements(requirements *v1.ResourceRequirements, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}
	limPath := fldPath.Child("limits")
	reqPath := fldPath.Child("requests")
	for resourceName, quantity := range requirements.Limits {
		fldPath := limPath.Key(string(resourceName))
		// Validate resource name.
		allErrs = append(allErrs, validateContainerResourceName(string(resourceName), fldPath)...)

		// Validate resource quantity.
		allErrs = append(allErrs, ValidateResourceQuantityValue(string(resourceName), quantity, fldPath)...)

		// Check that request <= limit.
		requestQuantity, exists := requirements.Requests[resourceName]
		if exists {
			// For GPUs, not only requests can't exceed limits, they also can't be lower, i.e. must be equal.
			if resourceName == v1.ResourceNvidiaGPU && quantity.Cmp(requestQuantity) != 0 {
				allErrs = append(allErrs, field.Invalid(reqPath, requestQuantity.String(), fmt.Sprintf("must be equal to %s limit", v1.ResourceNvidiaGPU)))
			} else if quantity.Cmp(requestQuantity) < 0 {
				allErrs = append(allErrs, field.Invalid(limPath, quantity.String(), fmt.Sprintf("must be greater than or equal to %s request", resourceName)))
			}
		}
	}
	for resourceName, quantity := range requirements.Requests {
		fldPath := reqPath.Key(string(resourceName))
		// Validate resource name.
		allErrs = append(allErrs, validateContainerResourceName(string(resourceName), fldPath)...)
		// Validate resource quantity.
		allErrs = append(allErrs, ValidateResourceQuantityValue(string(resourceName), quantity, fldPath)...)
	}

	return allErrs
}

func validateHTTPIngressRuleValue(httpIngressRuleValue *extensions.HTTPIngressRuleValue, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}
	if len(httpIngressRuleValue.Paths) == 0 {
		allErrs = append(allErrs, field.Required(fldPath.Child("paths"), ""))
	}
	for i, rule := range httpIngressRuleValue.Paths {
		if len(rule.Path) > 0 {
			if !strings.HasPrefix(rule.Path, "/") {
				allErrs = append(allErrs, field.Invalid(fldPath.Child("paths").Index(i).Child("path"), rule.Path, "must be an absolute path"))
			}
			// TODO: More draconian path regex validation.
			// Path must be a valid regex. This is the basic requirement.
			// In addition to this any characters not allowed in a path per
			// RFC 3986 section-3.3 cannot appear as a literal in the regex.
			// Consider the example: http://host/valid?#bar, everything after
			// the last '/' is a valid regex that matches valid#bar, which
			// isn't a valid path, because the path terminates at the first ?
			// or #. A more sophisticated form of validation would detect that
			// the user is confusing url regexes with path regexes.
			_, err := regexp.CompilePOSIX(rule.Path)
			if err != nil {
				allErrs = append(allErrs, field.Invalid(fldPath.Child("paths").Index(i).Child("path"), rule.Path, "must be a valid regex"))
			}
		}
		allErrs = append(allErrs, validateIngressBackend(&rule.Backend, fldPath.Child("backend"))...)
	}
	return allErrs
}

func ValidateSelfSubjectAccessReviewSpec(spec authorizationapi.SelfSubjectAccessReviewSpec, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}
	if spec.ResourceAttributes != nil && spec.NonResourceAttributes != nil {
		allErrs = append(allErrs, field.Invalid(fldPath.Child("nonResourceAttributes"), spec.NonResourceAttributes, `cannot be specified in combination with resourceAttributes`))
	}
	if spec.ResourceAttributes == nil && spec.NonResourceAttributes == nil {
		allErrs = append(allErrs, field.Invalid(fldPath.Child("resourceAttributes"), spec.NonResourceAttributes, `exactly one of nonResourceAttributes or resourceAttributes must be specified`))
	}

	return allErrs
}

func ValidatePositiveIntOrPercent(intOrPercent intstr.IntOrString, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}
	switch intOrPercent.Type {
	case intstr.String:
		for _, msg := range validation.IsValidPercent(intOrPercent.StrVal) {
			allErrs = append(allErrs, field.Invalid(fldPath, intOrPercent, msg))
		}
	case intstr.Int:
		allErrs = append(allErrs, apivalidation.ValidateNonnegativeField(int64(intOrPercent.IntValue()), fldPath)...)
	default:
		allErrs = append(allErrs, field.Invalid(fldPath, intOrPercent, "must be an integer or percentage (e.g '5%%')"))
	}
	return allErrs
}

func ValidateAPIService(apiServer *discoveryapi.APIService) field.ErrorList {
	requiredName := apiServer.Spec.Version + "." + apiServer.Spec.Group

	allErrs := validation.ValidateObjectMeta(&apiServer.ObjectMeta, false,
		func(name string, prefix bool) []string {
			if minimalFailures := path.IsValidPathSegmentName(name); len(minimalFailures) > 0 {
				return minimalFailures
			}
			// the name *must* be version.group
			if name != requiredName {
				return []string{fmt.Sprintf("must be `spec.version+\".\"+spec.group`: %q", requiredName)}
			}

			return []string{}
		},
		field.NewPath("metadata"))

	// in this case we allow empty group
	if len(apiServer.Spec.Group) == 0 && apiServer.Spec.Version != "v1" {
		allErrs = append(allErrs, field.Required(field.NewPath("spec", "group"), "only v1 may have an empty group and it better be legacy kube"))
	}
	if len(apiServer.Spec.Group) > 0 {
		for _, errString := range utilvalidation.IsDNS1123Subdomain(apiServer.Spec.Group) {
			allErrs = append(allErrs, field.Invalid(field.NewPath("spec", "group"), apiServer.Spec.Group, errString))
		}
	}

	for _, errString := range utilvalidation.IsDNS1035Label(apiServer.Spec.Version) {
		allErrs = append(allErrs, field.Invalid(field.NewPath("spec", "version"), apiServer.Spec.Version, errString))
	}

	if apiServer.Spec.Priority <= 0 || apiServer.Spec.Priority > 1000 {
		allErrs = append(allErrs, field.Invalid(field.NewPath("spec", "priority"), apiServer.Spec.Priority, "priority must be positive and less than 1000"))

	}

	if len(apiServer.Spec.Service.Namespace) == 0 {
		allErrs = append(allErrs, field.Required(field.NewPath("spec", "service", "namespace"), ""))
	}
	if len(apiServer.Spec.Service.Name) == 0 {
		allErrs = append(allErrs, field.Required(field.NewPath("spec", "service", "name"), ""))
	}

	if apiServer.Spec.InsecureSkipTLSVerify && len(apiServer.Spec.CABundle) > 0 {
		allErrs = append(allErrs, field.Invalid(field.NewPath("spec", "insecureSkipTLSVerify"), apiServer.Spec.InsecureSkipTLSVerify, "may not be true if caBundle is present"))
	}

	return allErrs
}

// Validate ensures that the specified values fall within the range of the strategy.
func (s *defaultCapabilities) Validate(pod *api.Pod, container *api.Container) field.ErrorList {
	allErrs := field.ErrorList{}

	// if the security context isn't set then we haven't generated correctly.  Shouldn't get here
	// if using the provider correctly
	if container.SecurityContext == nil {
		allErrs = append(allErrs, field.Invalid(field.NewPath("securityContext"), container.SecurityContext, "no security context is set"))
		return allErrs
	}

	if container.SecurityContext.Capabilities == nil {
		// if container.SC.Caps is nil then nothing was defaulted by the strat or requested by the pod author
		// if there are no required caps on the strategy and nothing is requested on the pod
		// then we can safely return here without further validation.
		if len(s.defaultAddCapabilities) == 0 && len(s.requiredDropCapabilities) == 0 {
			return allErrs
		}

		// container has no requested caps but we have required caps.  We should have something in
		// at least the drops on the container.
		allErrs = append(allErrs, field.Invalid(field.NewPath("capabilities"), container.SecurityContext.Capabilities,
			"required capabilities are not set on the securityContext"))
		return allErrs
	}

	// validate that anything being added is in the default or allowed sets
	defaultAdd := makeCapSet(s.defaultAddCapabilities)
	allowedAdd := makeCapSet(s.allowedCaps)

	for _, cap := range container.SecurityContext.Capabilities.Add {
		sCap := string(cap)
		if !defaultAdd.Has(sCap) && !allowedAdd.Has(sCap) {
			allErrs = append(allErrs, field.Invalid(field.NewPath("capabilities", "add"), sCap, "capability may not be added"))
		}
	}

	// validate that anything that is required to be dropped is in the drop set
	containerDrops := makeCapSet(container.SecurityContext.Capabilities.Drop)

	for _, requiredDrop := range s.requiredDropCapabilities {
		sDrop := string(requiredDrop)
		if !containerDrops.Has(sDrop) {
			allErrs = append(allErrs, field.Invalid(field.NewPath("capabilities", "drop"), container.SecurityContext.Capabilities.Drop,
				fmt.Sprintf("%s is required to be dropped but was not found", sDrop)))
		}
	}

	return allErrs
}

// Validate ensures that the specified values fall within the range of the strategy.  Validation
// of this will pass if either the UID is not set, assuming that the image will provided the UID
// or if the UID is set it is not root.  In order to work properly this assumes that the kubelet
// performs a final check on runAsUser or the image UID when runAsUser is nil.
func (s *nonRoot) Validate(pod *api.Pod, container *api.Container) field.ErrorList {
	allErrs := field.ErrorList{}
	securityContextPath := field.NewPath("securityContext")
	if container.SecurityContext == nil {
		detail := fmt.Sprintf("unable to validate nil security context for container %s", container.Name)
		allErrs = append(allErrs, field.Invalid(securityContextPath, container.SecurityContext, detail))
		return allErrs
	}
	if container.SecurityContext.RunAsUser != nil && *container.SecurityContext.RunAsUser == 0 {
		detail := fmt.Sprintf("running with the root UID is forbidden by the pod security policy %s", container.Name)
		allErrs = append(allErrs, field.Invalid(securityContextPath.Child("runAsUser"), *container.SecurityContext.RunAsUser, detail))
		return allErrs
	}
	return allErrs
}

func ValidateSelfSubjectAccessReview(sar *authorizationapi.SelfSubjectAccessReview) field.ErrorList {
	allErrs := ValidateSelfSubjectAccessReviewSpec(sar.Spec, field.NewPath("spec"))
	if !api.Semantic.DeepEqual(metav1.ObjectMeta{}, sar.ObjectMeta) {
		allErrs = append(allErrs, field.Invalid(field.NewPath("metadata"), sar.ObjectMeta, `must be empty`))
	}
	return allErrs
}

func ValidateClusterRoleBinding(roleBinding *rbac.ClusterRoleBinding) field.ErrorList {
	allErrs := field.ErrorList{}
	allErrs = append(allErrs, validation.ValidateObjectMeta(&roleBinding.ObjectMeta, false, minimalNameRequirements, field.NewPath("metadata"))...)

	// TODO allow multiple API groups.  For now, restrict to one, but I can envision other experimental roles in other groups taking
	// advantage of the binding infrastructure
	if roleBinding.RoleRef.APIGroup != rbac.GroupName {
		allErrs = append(allErrs, field.NotSupported(field.NewPath("roleRef", "apiGroup"), roleBinding.RoleRef.APIGroup, []string{rbac.GroupName}))
	}

	switch roleBinding.RoleRef.Kind {
	case "ClusterRole":
	default:
		allErrs = append(allErrs, field.NotSupported(field.NewPath("roleRef", "kind"), roleBinding.RoleRef.Kind, []string{"ClusterRole"}))

	}

	if len(roleBinding.RoleRef.Name) == 0 {
		allErrs = append(allErrs, field.Required(field.NewPath("roleRef", "name"), ""))
	} else {
		for _, msg := range minimalNameRequirements(roleBinding.RoleRef.Name, false) {
			allErrs = append(allErrs, field.Invalid(field.NewPath("roleRef", "name"), roleBinding.RoleRef.Name, msg))
		}
	}

	subjectsPath := field.NewPath("subjects")
	for i, subject := range roleBinding.Subjects {
		allErrs = append(allErrs, validateRoleBindingSubject(subject, false, subjectsPath.Index(i))...)
	}

	return allErrs
}

// Validates that a Quantity is not negative
func ValidateNonnegativeQuantity(value resource.Quantity, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}
	if value.Cmp(resource.Quantity{}) < 0 {
		allErrs = append(allErrs, field.Invalid(fldPath, value.String(), isNegativeErrorMsg))
	}
	return allErrs
}

// Validates that given value is not negative.
func ValidateNonnegativeField(value int64, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}
	if value < 0 {
		allErrs = append(allErrs, field.Invalid(fldPath, value, IsNegativeErrorMsg))
	}
	return allErrs
}