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vendor/github.com/ant31/crd-validation/pkg/cli-utils.go generated vendored Normal file
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// Copyright 2018
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package crdvalidation
import (
"encoding/json"
"flag"
"os"
"strings"
"github.com/ghodss/yaml"
extensionsobj "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1beta1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
)
// Config stores the user configuration input
type Config struct {
SpecDefinitionName string
EnableValidation bool
OutputFormat string
Labels Labels
Annotations Labels
ResourceScope string
Group string
Kind string
Version string
Plural string
SpecReplicasPath string
StatusReplicasPath string
LabelSelectorPath string
Categories []string
ShortNames []string
GetOpenAPIDefinitions GetAPIDefinitions
}
type Labels struct {
LabelsString string
LabelsMap map[string]string
}
// Implement the flag.Value interface
func (labels *Labels) String() string {
return labels.LabelsString
}
// Merge labels create a new map with labels merged.
func (labels *Labels) Merge(otherLabels map[string]string) map[string]string {
mergedLabels := map[string]string{}
for key, value := range otherLabels {
mergedLabels[key] = value
}
for key, value := range labels.LabelsMap {
mergedLabels[key] = value
}
return mergedLabels
}
// Implement the flag.Set interface
func (labels *Labels) Set(value string) error {
m := map[string]string{}
if value != "" {
splited := strings.Split(value, ",")
for _, pair := range splited {
sp := strings.Split(pair, "=")
m[sp[0]] = sp[1]
}
}
(*labels).LabelsMap = m
(*labels).LabelsString = value
return nil
}
func NewCustomResourceDefinition(config Config) *extensionsobj.CustomResourceDefinition {
crd := &extensionsobj.CustomResourceDefinition{
ObjectMeta: metav1.ObjectMeta{
Name: config.Plural + "." + config.Group,
Labels: config.Labels.LabelsMap,
Annotations: config.Annotations.LabelsMap,
},
TypeMeta: CustomResourceDefinitionTypeMeta,
Spec: extensionsobj.CustomResourceDefinitionSpec{
Group: config.Group,
Version: config.Version,
Scope: extensionsobj.ResourceScope(config.ResourceScope),
Names: extensionsobj.CustomResourceDefinitionNames{
Plural: config.Plural,
Kind: config.Kind,
Categories: config.Categories,
ShortNames: config.ShortNames,
},
Subresources: &extensionsobj.CustomResourceSubresources{
Status: &extensionsobj.CustomResourceSubresourceStatus {
},
Scale: &extensionsobj.CustomResourceSubresourceScale {
SpecReplicasPath: config.SpecReplicasPath,
StatusReplicasPath: config.StatusReplicasPath,
LabelSelectorPath: &config.LabelSelectorPath,
},
},
},
}
if config.SpecDefinitionName != "" && config.EnableValidation == true {
crd.Spec.Validation = GetCustomResourceValidation(config.SpecDefinitionName, config.GetOpenAPIDefinitions)
}
return crd
}
func MarshallCrd(crd *extensionsobj.CustomResourceDefinition, outputFormat string) error {
jsonBytes, err := json.Marshal(crd)
if err != nil {
return err
}
var r unstructured.Unstructured
if err := json.Unmarshal(jsonBytes, &r.Object); err != nil {
return err
}
unstructured.RemoveNestedField(r.Object, "status")
jsonBytes, err = json.MarshalIndent(r.Object, "", " ")
if err != nil {
return err
}
if outputFormat == "json" {
_, err = os.Stdout.Write(jsonBytes)
if err != nil {
return err
}
} else {
yamlBytes, err := yaml.JSONToYAML(jsonBytes)
if err != nil {
return err
}
_, err = os.Stdout.Write([]byte("---\n"))
if err != nil {
return err
}
_, err = os.Stdout.Write(yamlBytes)
if err != nil {
return err
}
}
return nil
}
// InitFlags prepares command line flags parser
func InitFlags(cfg *Config, flagset *flag.FlagSet) *flag.FlagSet {
flagset.Var(&cfg.Labels, "labels", "Labels")
flagset.Var(&cfg.Annotations, "annotations", "Annotations")
flagset.BoolVar(&cfg.EnableValidation, "with-validation", true, "Add CRD validation field, default: true")
flagset.StringVar(&cfg.Group, "apigroup", "custom.example.com", "CRD api group")
flagset.StringVar(&cfg.SpecDefinitionName, "spec-name", "", "CRD spec definition name")
flagset.StringVar(&cfg.OutputFormat, "output", "yaml", "output format: json|yaml")
flagset.StringVar(&cfg.Kind, "kind", "", "CRD Kind")
flagset.StringVar(&cfg.ResourceScope, "scope", string(extensionsobj.NamespaceScoped), "CRD scope: 'Namespaced' | 'Cluster'. Default: Namespaced")
flagset.StringVar(&cfg.Version, "version", "v1", "CRD version, default: 'v1'")
flagset.StringVar(&cfg.Plural, "plural", "", "CRD plural name")
flagset.StringVar(&cfg.SpecReplicasPath, "spec-replicas-path", ".spec.replicas", "CRD spec replicas path")
flagset.StringVar(&cfg.StatusReplicasPath, "status-replicas-path", ".status.replicas", "CRD status replicas path")
flagset.StringVar(&cfg.LabelSelectorPath, "label-selector-path", ".status.labelSelector", "CRD label selector path")
return flagset
}

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package crdvalidation
import (
"fmt"
spec "github.com/go-openapi/spec"
extensionsobj "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1beta1"
common "k8s.io/kube-openapi/pkg/common"
)
// SchemaPropsToJSONPropsArray converts []Schema to []JSONSchemaProps
func SchemaPropsToJSONPropsArray(schemas []spec.Schema, openapiSpec map[string]common.OpenAPIDefinition, nested bool) []extensionsobj.JSONSchemaProps {
var s []extensionsobj.JSONSchemaProps
for _, schema := range schemas {
s = append(s, *SchemaPropsToJSONProps(&schema, openapiSpec, nested))
}
return s
}
// StringOrArrayToString converts StringOrArray to string
func StringOrArrayToString(strOrArray spec.StringOrArray) string {
if len(strOrArray) > 0 {
return strOrArray[0]
}
return ""
}
// EnumJSON converts []interface{} to []JSON
func EnumJSON(enum []interface{}) []extensionsobj.JSON {
var s []extensionsobj.JSON
for _, elt := range enum {
s = append(s, extensionsobj.JSON{
Raw: []byte(fmt.Sprintf("%v", elt)),
})
}
return s
}
// SchemaOrArrayToJSONItems converts *SchemaOrArray to *JSONSchemaPropsOrArray
func SchemaOrArrayToJSONItems(schemaOrArray *spec.SchemaOrArray, openapiSpec map[string]common.OpenAPIDefinition, nested bool) *extensionsobj.JSONSchemaPropsOrArray {
var array *extensionsobj.JSONSchemaPropsOrArray
if schemaOrArray == nil {
return array
}
return &extensionsobj.JSONSchemaPropsOrArray{
Schema: SchemaPropsToJSONProps(schemaOrArray.Schema, openapiSpec, nested),
JSONSchemas: SchemaPropsToJSONPropsArray(schemaOrArray.Schemas, openapiSpec, nested),
}
}
// SchemaOrBoolToJSONProps converts *SchemaOrBool to *JSONSchemaPropsOrBool
func SchemaOrBoolToJSONProps(schemaOrBool *spec.SchemaOrBool, openapiSpec map[string]common.OpenAPIDefinition, nested bool) *extensionsobj.JSONSchemaPropsOrBool {
var s *extensionsobj.JSONSchemaPropsOrBool
if schemaOrBool == nil {
return s
}
return &extensionsobj.JSONSchemaPropsOrBool{
Schema: SchemaPropsToJSONProps(schemaOrBool.Schema, openapiSpec, nested),
Allows: schemaOrBool.Allows,
}
}
// SchemPropsMapToJSONMap converts map[string]Schema to map[string]JSONSchemaProps
func SchemPropsMapToJSONMap(schemaMap map[string]spec.Schema, openapiSpec map[string]common.OpenAPIDefinition, nested bool) map[string]extensionsobj.JSONSchemaProps {
var m map[string]extensionsobj.JSONSchemaProps
m = make(map[string]extensionsobj.JSONSchemaProps)
for key, schema := range schemaMap {
m[key] = *SchemaPropsToJSONProps(&schema, openapiSpec, nested)
}
return m
}
// SchemaPropsToJSONProps converts a SchemaProps to a JSONProps
func SchemaPropsToJSONProps(schema *spec.Schema, openapiSpec map[string]common.OpenAPIDefinition, nested bool) *extensionsobj.JSONSchemaProps {
var props *extensionsobj.JSONSchemaProps
if schema == nil {
return props
}
schemaProps := &schema.SchemaProps
var ref *string
if schemaProps.Ref.String() != "" {
if nested {
propref := openapiSpec[schemaProps.Ref.String()].Schema
// If nested just return a pointer to the reference
return SchemaPropsToJSONProps(&propref, openapiSpec, nested)
}
ref = new(string)
*ref = schemaProps.Ref.String()
}
props = &extensionsobj.JSONSchemaProps{
Ref: ref,
ID: schemaProps.ID,
Schema: extensionsobj.JSONSchemaURL(string(schema.Schema)),
Description: schemaProps.Description,
Type: StringOrArrayToString(schemaProps.Type),
Format: schemaProps.Format,
Title: schemaProps.Title,
Maximum: schemaProps.Maximum,
ExclusiveMaximum: schemaProps.ExclusiveMaximum,
Minimum: schemaProps.Minimum,
ExclusiveMinimum: schemaProps.ExclusiveMinimum,
MaxLength: schemaProps.MaxLength,
MinLength: schemaProps.MinLength,
Pattern: schemaProps.Pattern,
MaxItems: schemaProps.MaxItems,
MinItems: schemaProps.MinItems,
UniqueItems: schemaProps.UniqueItems,
MultipleOf: schemaProps.MultipleOf,
Enum: EnumJSON(schemaProps.Enum),
MaxProperties: schemaProps.MaxProperties,
MinProperties: schemaProps.MinProperties,
Required: schemaProps.Required,
Items: SchemaOrArrayToJSONItems(schemaProps.Items, openapiSpec, nested),
AllOf: SchemaPropsToJSONPropsArray(schemaProps.AllOf, openapiSpec, nested),
OneOf: SchemaPropsToJSONPropsArray(schemaProps.OneOf, openapiSpec, nested),
AnyOf: SchemaPropsToJSONPropsArray(schemaProps.AnyOf, openapiSpec, nested),
Not: SchemaPropsToJSONProps(schemaProps.Not, openapiSpec, nested),
Properties: SchemPropsMapToJSONMap(schemaProps.Properties, openapiSpec, nested),
// @TODO(01-25-2018) Field not accepted by the current CRD Validation Spec
// AdditionalProperties: SchemaOrBoolToJSONProps(schemaProps.AdditionalProperties, openapiSpec, nested),
PatternProperties: SchemPropsMapToJSONMap(schemaProps.PatternProperties, openapiSpec, nested),
AdditionalItems: SchemaOrBoolToJSONProps(schemaProps.AdditionalItems, openapiSpec, nested),
}
return props
}

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vendor/github.com/ant31/crd-validation/pkg/crdvalidation.go generated vendored Normal file
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package crdvalidation
import (
spec "github.com/go-openapi/spec"
extensionsobj "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1beta1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
common "k8s.io/kube-openapi/pkg/common"
)
// CustomResourceDefinitionTypeMeta set the default kind/apiversion of CRD
var CustomResourceDefinitionTypeMeta = metav1.TypeMeta{
Kind: "CustomResourceDefinition",
APIVersion: "apiextensions.k8s.io/v1beta1",
}
// OpenAPIRefCallBack returns a jsonref using the input string without modification
func OpenAPIRefCallBack(name string) spec.Ref {
return spec.MustCreateRef(name)
}
// GetAPIDefinition is a function returning a map with all Definition
type GetAPIDefinitions func(ref common.ReferenceCallback) map[string]common.OpenAPIDefinition
// GetCustomResourceValidations returns a CRD validation spec map. It took the openapi generated definition from kube-openapi as argument
func GetCustomResourceValidations(fn GetAPIDefinitions) map[string]*extensionsobj.CustomResourceValidation {
openapiSpec := fn(OpenAPIRefCallBack)
var definitions map[string]*extensionsobj.CustomResourceValidation
definitions = make(map[string]*extensionsobj.CustomResourceValidation)
for key, definition := range openapiSpec {
schema := definition.Schema
definitions[key] = &extensionsobj.CustomResourceValidation{
OpenAPIV3Schema: SchemaPropsToJSONProps(&schema, openapiSpec, true),
}
}
return definitions
}
// GetCustomResourceValidation returns the validation definition for a CRD name
func GetCustomResourceValidation(name string, fn func(ref common.ReferenceCallback) map[string]common.OpenAPIDefinition) *extensionsobj.CustomResourceValidation {
openapiSpec := fn(OpenAPIRefCallBack)
fixKnownTypes(openapiSpec)
schema := openapiSpec[name].Schema
crv := &extensionsobj.CustomResourceValidation{
OpenAPIV3Schema: SchemaPropsToJSONProps(&schema, openapiSpec, true),
}
crv.OpenAPIV3Schema.Description = ""
crv.OpenAPIV3Schema.Required = nil
return crv
}
// ref: https://github.com/kubernetes/kubernetes/issues/62329
func fixKnownTypes(openapiSpec map[string]common.OpenAPIDefinition) {
openapiSpec["k8s.io/apimachinery/pkg/util/intstr.IntOrString"] = common.OpenAPIDefinition{
Schema: spec.Schema{
SchemaProps: spec.SchemaProps{
AnyOf: []spec.Schema{
{
SchemaProps: spec.SchemaProps{
Type: []string{"string"},
},
},
{
SchemaProps: spec.SchemaProps{
Type: []string{"integer"},
},
},
},
},
},
}
}