Golang field.Path类代码示例

func ValidateJobStatus(status *extensions.JobStatus, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}
	allErrs = append(allErrs, apivalidation.ValidatePositiveField(int64(status.Active), fldPath.Child("active"))...)
	allErrs = append(allErrs, apivalidation.ValidatePositiveField(int64(status.Succeeded), fldPath.Child("succeeded"))...)
	allErrs = append(allErrs, apivalidation.ValidatePositiveField(int64(status.Failed), fldPath.Child("failed"))...)
	return allErrs
}

func validateIngressRuleValue(ingressRule *extensions.IngressRuleValue, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}
	if ingressRule.HTTP != nil {
		allErrs = append(allErrs, validateHTTPIngressRuleValue(ingressRule.HTTP, fldPath.Child("http"))...)
	}
	return allErrs
}

// ValidateDaemonSetSpec tests if required fields in the DaemonSetSpec are set.
func ValidateDaemonSetSpec(spec *extensions.DaemonSetSpec, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}

	allErrs = append(allErrs, ValidateLabelSelector(spec.Selector, fldPath.Child("selector"))...)

	if spec.Template == nil {
		allErrs = append(allErrs, field.Required(fldPath.Child("template"), ""))
		return allErrs
	}

	selector, err := extensions.LabelSelectorAsSelector(spec.Selector)
	if err == nil && !selector.Matches(labels.Set(spec.Template.Labels)) {
		allErrs = append(allErrs, field.Invalid(fldPath.Child("template", "metadata", "labels"), spec.Template.Labels, "`selector` does not match template `labels`"))
	}

	allErrs = append(allErrs, apivalidation.ValidatePodTemplateSpec(spec.Template, fldPath.Child("template"))...)
	// Daemons typically run on more than one node, so mark Read-Write persistent disks as invalid.
	allErrs = append(allErrs, apivalidation.ValidateReadOnlyPersistentDisks(spec.Template.Spec.Volumes, fldPath.Child("template", "spec", "volumes"))...)
	// RestartPolicy has already been first-order validated as per ValidatePodTemplateSpec().
	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 ValidateJobSpec(spec *extensions.JobSpec, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}

	if spec.Parallelism != nil {
		allErrs = append(allErrs, apivalidation.ValidatePositiveField(int64(*spec.Parallelism), fldPath.Child("parallelism"))...)
	}
	if spec.Completions != nil {
		allErrs = append(allErrs, apivalidation.ValidatePositiveField(int64(*spec.Completions), fldPath.Child("completions"))...)
	}
	if spec.ActiveDeadlineSeconds != nil {
		allErrs = append(allErrs, apivalidation.ValidatePositiveField(int64(*spec.ActiveDeadlineSeconds), fldPath.Child("activeDeadlineSeconds"))...)
	}
	if spec.Selector == nil {
		allErrs = append(allErrs, field.Required(fldPath.Child("selector"), ""))
	} else {
		allErrs = append(allErrs, ValidateLabelSelector(spec.Selector, fldPath.Child("selector"))...)
	}

	if selector, err := extensions.LabelSelectorAsSelector(spec.Selector); err == nil {
		labels := labels.Set(spec.Template.Labels)
		if !selector.Matches(labels) {
			allErrs = append(allErrs, field.Invalid(fldPath.Child("template", "metadata", "labels"), spec.Template.Labels, "`selector` does not match template `labels`"))
		}
	}

	allErrs = append(allErrs, apivalidation.ValidatePodTemplateSpec(&spec.Template, fldPath.Child("template"))...)
	if spec.Template.Spec.RestartPolicy != api.RestartPolicyOnFailure &&
		spec.Template.Spec.RestartPolicy != api.RestartPolicyNever {
		allErrs = append(allErrs, field.NotSupported(fldPath.Child("template", "spec", "restartPolicy"),
			spec.Template.Spec.RestartPolicy, []string{string(api.RestartPolicyOnFailure), string(api.RestartPolicyNever)}))
	}
	return allErrs
}

func ValidateLabelSelector(ps *extensions.LabelSelector, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}
	if ps == nil {
		return allErrs
	}
	allErrs = append(allErrs, apivalidation.ValidateLabels(ps.MatchLabels, fldPath.Child("matchLabels"))...)
	for i, expr := range ps.MatchExpressions {
		allErrs = append(allErrs, ValidateLabelSelectorRequirement(expr, fldPath.Child("matchExpressions").Index(i))...)
	}
	return allErrs
}

func ValidateDeploymentStrategy(strategy *extensions.DeploymentStrategy, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}
	if strategy.RollingUpdate == nil {
		return allErrs
	}
	switch strategy.Type {
	case extensions.RecreateDeploymentStrategyType:
		allErrs = append(allErrs, field.Forbidden(fldPath.Child("rollingUpdate"), "may not be specified when strategy `type` is '"+string(extensions.RecreateDeploymentStrategyType+"'")))
	case extensions.RollingUpdateDeploymentStrategyType:
		allErrs = append(allErrs, ValidateRollingUpdateDeployment(strategy.RollingUpdate, fldPath.Child("rollingUpdate"))...)
	}
	return allErrs
}

// ValidateIngressSpec tests if required fields in the IngressSpec are set.
func ValidateIngressSpec(spec *extensions.IngressSpec, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}
	// TODO: Is a default backend mandatory?
	if spec.Backend != nil {
		allErrs = append(allErrs, validateIngressBackend(spec.Backend, fldPath.Child("backend"))...)
	} else if len(spec.Rules) == 0 {
		allErrs = append(allErrs, field.Invalid(fldPath, spec.Rules, "either `backend` or `rules` must be specified"))
	}
	if len(spec.Rules) > 0 {
		allErrs = append(allErrs, validateIngressRules(spec.Rules, fldPath.Child("rules"))...)
	}
	return allErrs
}

// ValidateDaemonSetTemplateUpdate tests that certain fields in the daemon set's pod template are not updated.
func ValidateDaemonSetTemplateUpdate(podTemplate, oldPodTemplate *api.PodTemplateSpec, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}
	podSpec := podTemplate.Spec
	// podTemplate.Spec is not a pointer, so we can modify NodeSelector and NodeName directly.
	podSpec.NodeSelector = oldPodTemplate.Spec.NodeSelector
	podSpec.NodeName = oldPodTemplate.Spec.NodeName
	// In particular, we do not allow updates to container images at this point.
	if !api.Semantic.DeepEqual(oldPodTemplate.Spec, podSpec) {
		// TODO: Pinpoint the specific field that causes the invalid error after we have strategic merge diff
		allErrs = append(allErrs, field.Forbidden(fldPath.Child("spec"), "daemonSet updates may not change fields other than `nodeSelector`"))
	}
	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
}

// Validates given deployment spec.
func ValidateDeploymentSpec(spec *extensions.DeploymentSpec, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}
	allErrs = append(allErrs, apivalidation.ValidateNonEmptySelector(spec.Selector, fldPath.Child("selector"))...)
	allErrs = append(allErrs, apivalidation.ValidatePositiveField(int64(spec.Replicas), fldPath.Child("replicas"))...)
	allErrs = append(allErrs, apivalidation.ValidatePodTemplateSpecForRC(&spec.Template, spec.Selector, spec.Replicas, fldPath.Child("template"))...)
	allErrs = append(allErrs, ValidateDeploymentStrategy(&spec.Strategy, fldPath.Child("strategy"))...)
	// empty string is a valid UniqueLabelKey
	if len(spec.UniqueLabelKey) > 0 {
		allErrs = append(allErrs, apivalidation.ValidateLabelName(spec.UniqueLabelKey, fldPath.Child("uniqueLabel"))...)
	}
	return allErrs
}

// validateIngressBackend tests if a given backend is valid.
func validateIngressBackend(backend *extensions.IngressBackend, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}

	// All backends must reference a single local service by name, and a single service port by name or number.
	if len(backend.ServiceName) == 0 {
		return append(allErrs, field.Required(fldPath.Child("serviceName"), ""))
	} else if ok, errMsg := apivalidation.ValidateServiceName(backend.ServiceName, false); !ok {
		allErrs = append(allErrs, field.Invalid(fldPath.Child("serviceName"), backend.ServiceName, errMsg))
	}
	if backend.ServicePort.Type == intstr.String {
		if !validation.IsDNS1123Label(backend.ServicePort.StrVal) {
			allErrs = append(allErrs, field.Invalid(fldPath.Child("servicePort"), backend.ServicePort.StrVal, apivalidation.DNS1123LabelErrorMsg))
		}
		if !validation.IsValidPortName(backend.ServicePort.StrVal) {
			allErrs = append(allErrs, field.Invalid(fldPath.Child("servicePort"), backend.ServicePort.StrVal, apivalidation.PortNameErrorMsg))
		}
	} else if !validation.IsValidPortNum(backend.ServicePort.IntValue()) {
		allErrs = append(allErrs, field.Invalid(fldPath.Child("servicePort"), backend.ServicePort, apivalidation.PortRangeErrorMsg))
	}
	return allErrs
}

func ValidateLabelSelectorRequirement(sr extensions.LabelSelectorRequirement, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}
	switch sr.Operator {
	case extensions.LabelSelectorOpIn, extensions.LabelSelectorOpNotIn:
		if len(sr.Values) == 0 {
			allErrs = append(allErrs, field.Required(fldPath.Child("values"), "must be specified when `operator` is 'In' or 'NotIn'"))
		}
	case extensions.LabelSelectorOpExists, extensions.LabelSelectorOpDoesNotExist:
		if len(sr.Values) > 0 {
			allErrs = append(allErrs, field.Forbidden(fldPath.Child("values"), "may not be specified when `operator` is 'Exists' or 'DoesNotExist'"))
		}
	default:
		allErrs = append(allErrs, field.Invalid(fldPath.Child("operator"), sr.Operator, "not a valid selector operator"))
	}
	allErrs = append(allErrs, apivalidation.ValidateLabelName(sr.Key, fldPath.Child("key"))...)
	return allErrs
}

func ValidateRollingUpdateDeployment(rollingUpdate *extensions.RollingUpdateDeployment, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}
	allErrs = append(allErrs, ValidatePositiveIntOrPercent(rollingUpdate.MaxUnavailable, fldPath.Child("maxUnavailable"))...)
	allErrs = append(allErrs, ValidatePositiveIntOrPercent(rollingUpdate.MaxSurge, fldPath.Child("maxSurge"))...)
	if getIntOrPercentValue(rollingUpdate.MaxUnavailable) == 0 && getIntOrPercentValue(rollingUpdate.MaxSurge) == 0 {
		// Both MaxSurge and MaxUnavailable cannot be zero.
		allErrs = append(allErrs, field.Invalid(fldPath.Child("maxUnavailable"), rollingUpdate.MaxUnavailable, "may not be 0 when `maxSurge` is 0"))
	}
	// Validate that MaxUnavailable is not more than 100%.
	allErrs = append(allErrs, IsNotMoreThan100Percent(rollingUpdate.MaxUnavailable, fldPath.Child("maxUnavailable"))...)
	allErrs = append(allErrs, apivalidation.ValidatePositiveField(int64(rollingUpdate.MinReadySeconds), fldPath.Child("minReadySeconds"))...)
	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 {
			// TODO: Ports and ips are allowed in the host part of a url
			// according to RFC 3986, consider allowing them.
			if valid, errMsg := apivalidation.NameIsDNSSubdomain(ih.Host, false); !valid {
				allErrs = append(allErrs, field.Invalid(fldPath.Index(i).Child("host"), ih.Host, errMsg))
			}
			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"))
			}
		}
		allErrs = append(allErrs, validateIngressRuleValue(&ih.IngressRuleValue, fldPath.Index(0))...)
	}
	return allErrs
}

func ValidateJobSpecUpdate(spec, oldSpec extensions.JobSpec, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}
	allErrs = append(allErrs, ValidateJobSpec(&spec, fldPath)...)
	allErrs = append(allErrs, apivalidation.ValidateImmutableField(spec.Completions, oldSpec.Completions, fldPath.Child("completions"))...)
	allErrs = append(allErrs, apivalidation.ValidateImmutableField(spec.Selector, oldSpec.Selector, fldPath.Child("selector"))...)
	allErrs = append(allErrs, apivalidation.ValidateImmutableField(spec.Template, oldSpec.Template, fldPath.Child("template"))...)
	return allErrs
}