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bundle.go
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bundle.go
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package registry
import (
"encoding/json"
"fmt"
"strings"
apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
apiextensionsv1beta1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1beta1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/serializer"
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
"k8s.io/apimachinery/pkg/util/yaml"
)
const (
v1beta1CRDVersion = "v1beta1"
v1CRDVersion = "v1"
CRDKind = "CustomResourceDefinition"
)
// Scheme is the default instance of runtime.Scheme to which types in the Kubernetes API are already registered.
var Scheme = runtime.NewScheme()
// Codecs provides access to encoding and decoding for the scheme
var Codecs = serializer.NewCodecFactory(Scheme)
func DefaultYAMLDecoder() runtime.Decoder {
return Codecs.UniversalDeserializer()
}
func init() {
utilruntime.Must(apiextensionsv1beta1.AddToScheme(Scheme))
utilruntime.Must(apiextensionsv1.AddToScheme(Scheme))
}
type Bundle struct {
Name string
Objects []*unstructured.Unstructured
Package string
Channels []string
BundleImage string
version string
csv *ClusterServiceVersion
v1beta1crds []*apiextensionsv1beta1.CustomResourceDefinition
v1crds []*apiextensionsv1.CustomResourceDefinition
Dependencies []*Dependency
Properties []Property
Annotations *Annotations
cacheStale bool
}
func NewBundle(name string, annotations *Annotations, objs ...*unstructured.Unstructured) *Bundle {
bundle := &Bundle{
Name: name,
Package: annotations.PackageName,
Annotations: annotations,
}
for _, o := range objs {
bundle.Add(o)
}
if annotations == nil {
return bundle
}
bundle.Channels = strings.Split(annotations.Channels, ",")
return bundle
}
func NewBundleFromStrings(name, version, pkg, defaultChannel, channels, objs string) (*Bundle, error) {
objStrs, err := BundleStringToObjectStrings(objs)
if err != nil {
return nil, err
}
unstObjs := []*unstructured.Unstructured{}
for _, o := range objStrs {
dec := yaml.NewYAMLOrJSONDecoder(strings.NewReader(o), 10)
unst := &unstructured.Unstructured{}
if err := dec.Decode(unst); err != nil {
return nil, err
}
unstObjs = append(unstObjs, unst)
}
annotations := &Annotations{
PackageName: pkg,
Channels: channels,
DefaultChannelName: defaultChannel,
}
bundle := NewBundle(name, annotations, unstObjs...)
bundle.version = version
return bundle, nil
}
func (b *Bundle) Size() int {
return len(b.Objects)
}
func (b *Bundle) Add(obj *unstructured.Unstructured) {
b.Objects = append(b.Objects, obj)
b.cacheStale = true
}
func (b *Bundle) ClusterServiceVersion() (*ClusterServiceVersion, error) {
if err := b.cache(); err != nil {
return nil, err
}
return b.csv, nil
}
func (b *Bundle) Version() (string, error) {
if b.version != "" {
return b.version, nil
}
var err error
if err = b.cache(); err != nil {
return "", err
}
if b.csv != nil {
b.version, err = b.csv.GetVersion()
}
return b.version, err
}
func (b *Bundle) SkipRange() (string, error) {
if err := b.cache(); err != nil {
return "", err
}
return b.csv.GetSkipRange(), nil
}
func (b *Bundle) Replaces() (string, error) {
if err := b.cache(); err != nil {
return "", err
}
return b.csv.GetReplaces()
}
func (b *Bundle) Skips() ([]string, error) {
if err := b.cache(); err != nil {
return nil, err
}
return b.csv.GetSkips()
}
func (b *Bundle) Icons() ([]Icon, error) {
if err := b.cache(); err != nil {
return nil, err
}
return b.csv.GetIcons()
}
func (b *Bundle) Description() (string, error) {
if err := b.cache(); err != nil {
return "", err
}
return b.csv.GetDescription()
}
func (b *Bundle) CustomResourceDefinitions() ([]runtime.Object, error) {
if err := b.cache(); err != nil {
return nil, err
}
var crds []runtime.Object
for _, crd := range b.v1crds {
crds = append(crds, crd)
}
for _, crd := range b.v1beta1crds {
crds = append(crds, crd)
}
return crds, nil
}
func (b *Bundle) ProvidedAPIs() (map[APIKey]struct{}, error) {
provided := map[APIKey]struct{}{}
crds, err := b.CustomResourceDefinitions()
if err != nil {
return nil, fmt.Errorf("error getting crds: %s", err)
}
for _, c := range crds {
switch crd := c.(type) {
case *apiextensionsv1.CustomResourceDefinition:
for _, v := range crd.Spec.Versions {
provided[APIKey{Group: crd.Spec.Group, Version: v.Name, Kind: crd.Spec.Names.Kind, Plural: crd.Spec.Names.Plural}] = struct{}{}
}
case *apiextensionsv1beta1.CustomResourceDefinition:
for _, v := range crd.Spec.Versions {
provided[APIKey{Group: crd.Spec.Group, Version: v.Name, Kind: crd.Spec.Names.Kind, Plural: crd.Spec.Names.Plural}] = struct{}{}
}
if crd.Spec.Version != "" {
provided[APIKey{Group: crd.Spec.Group, Version: crd.Spec.Version, Kind: crd.Spec.Names.Kind, Plural: crd.Spec.Names.Plural}] = struct{}{}
}
default:
return nil, fmt.Errorf("unknown api version in crd: %#v", crd)
}
}
csv, err := b.ClusterServiceVersion()
if err != nil {
return nil, err
}
ownedAPIs, _, err := csv.GetApiServiceDefinitions()
if err != nil {
return nil, fmt.Errorf("error getting apiservice definitions: %s", err)
}
for _, api := range ownedAPIs {
provided[APIKey{Group: api.Group, Version: api.Version, Kind: api.Kind, Plural: api.Name}] = struct{}{}
}
return provided, nil
}
func (b *Bundle) RequiredAPIs() (map[APIKey]struct{}, error) {
required := map[APIKey]struct{}{}
csv, err := b.ClusterServiceVersion()
if err != nil {
return nil, err
}
_, requiredCRDs, err := csv.GetCustomResourceDefintions()
if err != nil {
return nil, err
}
for _, api := range requiredCRDs {
parts := strings.SplitN(api.Name, ".", 2)
if len(parts) < 2 {
return nil, fmt.Errorf("couldn't parse plural.group from crd name: %s", api.Name)
}
required[APIKey{parts[1], api.Version, api.Kind, parts[0]}] = struct{}{}
}
_, requiredAPIs, err := csv.GetApiServiceDefinitions()
if err != nil {
return nil, err
}
for _, api := range requiredAPIs {
required[APIKey{Group: api.Group, Version: api.Version, Kind: api.Kind, Plural: api.Name}] = struct{}{}
}
return required, nil
}
func (b *Bundle) AllProvidedAPIsInBundle() error {
csv, err := b.ClusterServiceVersion()
if err != nil {
return err
}
bundleAPIs, err := b.ProvidedAPIs()
if err != nil {
return err
}
ownedCRDs, _, err := csv.GetCustomResourceDefintions()
if err != nil {
return err
}
shouldExist := make(map[APIKey]struct{}, len(ownedCRDs))
for _, crdDef := range ownedCRDs {
parts := strings.SplitN(crdDef.Name, ".", 2)
if len(parts) < 2 {
return fmt.Errorf("couldn't parse plural.group from crd name: %s", crdDef.Name)
}
shouldExist[APIKey{parts[1], crdDef.Version, crdDef.Kind, parts[0]}] = struct{}{}
}
for key := range shouldExist {
if _, ok := bundleAPIs[key]; !ok {
return fmt.Errorf("couldn't find %v in bundle. found: %v", key, bundleAPIs)
}
}
// note: don't need to check bundle for extension apiserver types, which don't require extra bundle entries
return nil
}
func (b *Bundle) Serialize() (csvName, bundleImage string, csvBytes []byte, bundleBytes []byte, annotationBytes []byte, err error) {
csvCount := 0
for _, obj := range b.Objects {
objBytes, err := runtime.Encode(unstructured.UnstructuredJSONScheme, obj)
if err != nil {
return "", "", nil, nil, nil, err
}
bundleBytes = append(bundleBytes, objBytes...)
if obj.GroupVersionKind().Kind == "ClusterServiceVersion" {
csvName = obj.GetName()
csvBytes, err = runtime.Encode(unstructured.UnstructuredJSONScheme, obj)
if err != nil {
return "", "", nil, nil, nil, err
}
csvCount += 1
if csvCount > 1 {
return "", "", nil, nil, nil, fmt.Errorf("two csvs found in one bundle")
}
}
}
if b.Annotations != nil {
annotationBytes, err = json.Marshal(b.Annotations)
}
return csvName, b.BundleImage, csvBytes, bundleBytes, annotationBytes, nil
}
func (b *Bundle) Images() (map[string]struct{}, error) {
result := make(map[string]struct{})
if b.BundleImage != "" {
result[b.BundleImage] = struct{}{}
}
csv, err := b.ClusterServiceVersion()
if err != nil {
return nil, err
}
if csv == nil {
return result, nil
}
images, err := csv.GetOperatorImages()
if err != nil {
return nil, err
}
for img := range images {
result[img] = struct{}{}
}
relatedImages, err := csv.GetRelatedImages()
if err != nil {
return nil, err
}
for img := range relatedImages {
result[img] = struct{}{}
}
return result, nil
}
func (b *Bundle) cache() error {
if !b.cacheStale {
return nil
}
for _, o := range b.Objects {
if o.GroupVersionKind().Kind == "ClusterServiceVersion" {
csv := &ClusterServiceVersion{}
if err := runtime.DefaultUnstructuredConverter.FromUnstructured(o.UnstructuredContent(), csv); err != nil {
return err
}
b.csv = csv
break
}
}
for _, o := range b.Objects {
if o.GroupVersionKind().Kind == CRDKind {
// Marshal Unstructured and Decode as CustomResourceDefinition. FromUnstructured has issues
// converting JSON numbers to float64 for CRD minimum/maximum validation.
cb, err := o.MarshalJSON()
if err != nil {
return err
}
dec := serializer.NewCodecFactory(Scheme).UniversalDeserializer()
switch o.GroupVersionKind().Version {
case v1CRDVersion:
crd := &apiextensionsv1.CustomResourceDefinition{}
if _, _, err = dec.Decode(cb, nil, crd); err != nil {
return fmt.Errorf("error decoding v1 CRD: %v", err)
}
b.v1crds = append(b.v1crds, crd)
case v1beta1CRDVersion:
crd := &apiextensionsv1beta1.CustomResourceDefinition{}
if _, _, err = dec.Decode(cb, nil, crd); err != nil {
return fmt.Errorf("error decoding v1beta1 CRD: %v", err)
}
b.v1beta1crds = append(b.v1beta1crds, crd)
}
}
}
b.cacheStale = false
return nil
}
func (b *Bundle) SubstitutesFor() (string, error) {
if err := b.cache(); err != nil {
return "", err
}
return b.csv.GetSubstitutesFor(), nil
}