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spec.go
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spec.go
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package cluster
import (
"fmt"
"strings"
eksdv1alpha1 "github.com/aws/eks-distro-build-tooling/release/api/v1alpha1"
eksav1alpha1 "github.com/aws/eks-anywhere/pkg/api/v1alpha1"
"github.com/aws/eks-anywhere/pkg/types"
"github.com/aws/eks-anywhere/release/api/v1alpha1"
)
type Spec struct {
*Config
Bundles *v1alpha1.Bundles
OIDCConfig *eksav1alpha1.OIDCConfig
AWSIamConfig *eksav1alpha1.AWSIamConfig
ManagementCluster *types.Cluster // TODO(g-gaston): cleanup, this doesn't belong here
EKSARelease *v1alpha1.EKSARelease
VersionsBundles map[eksav1alpha1.KubernetesVersion]*VersionsBundle
}
func (s *Spec) DeepCopy() *Spec {
ns := &Spec{
Config: s.Config.DeepCopy(),
OIDCConfig: s.OIDCConfig.DeepCopy(),
AWSIamConfig: s.AWSIamConfig.DeepCopy(),
Bundles: s.Bundles.DeepCopy(),
VersionsBundles: deepCopyVersionsBundles(s.VersionsBundles),
EKSARelease: s.EKSARelease.DeepCopy(),
}
if s.ManagementCluster != nil {
ns.ManagementCluster = s.ManagementCluster.DeepCopy()
}
return ns
}
type VersionsBundle struct {
*v1alpha1.VersionsBundle
KubeDistro *KubeDistro
}
func deepCopyVersionsBundles(v map[eksav1alpha1.KubernetesVersion]*VersionsBundle) map[eksav1alpha1.KubernetesVersion]*VersionsBundle {
m := make(map[eksav1alpha1.KubernetesVersion]*VersionsBundle, len(v))
for key, val := range v {
m[key] = &VersionsBundle{
VersionsBundle: val.VersionsBundle.DeepCopy(),
KubeDistro: val.KubeDistro.deepCopy(),
}
}
return m
}
// EKSD represents an eks-d release.
type EKSD struct {
// Channel is the minor Kubernetes version for the eks-d release (eg. "1.23", "1.24", etc.)
Channel string
// Number is the monotonically increasing number that distinguishes the different eks-d releases
// for the same Kubernetes minor version (channel).
Number int
}
func (k *KubeDistro) deepCopy() *KubeDistro {
k2 := *k
return &k2
}
type KubeDistro struct {
EKSD EKSD
Kubernetes VersionedRepository
CoreDNS VersionedRepository
Etcd VersionedRepository
NodeDriverRegistrar v1alpha1.Image
LivenessProbe v1alpha1.Image
ExternalAttacher v1alpha1.Image
ExternalProvisioner v1alpha1.Image
Pause v1alpha1.Image
EtcdImage v1alpha1.Image
EtcdVersion string
AwsIamAuthImage v1alpha1.Image
KubeProxy v1alpha1.Image
}
type VersionedRepository struct {
Repository, Tag string
}
// NewSpec builds a new [Spec].
func NewSpec(config *Config, bundles *v1alpha1.Bundles, eksdReleases []eksdv1alpha1.Release, eksaRelease *v1alpha1.EKSARelease) (*Spec, error) {
s := &Spec{}
s.Bundles = bundles
s.Config = config
vb, err := getAllVersionsBundles(s.Cluster, bundles, eksdReleases)
if err != nil {
return nil, err
}
s.VersionsBundles = vb
s.EKSARelease = eksaRelease
// Get first aws iam config if it exists
// Config supports multiple configs because Cluster references a slice
// But we validate that only one of each type is referenced
for _, ac := range s.Config.AWSIAMConfigs {
s.AWSIamConfig = ac
break
}
// Get first oidc config if it exists
for _, oc := range s.Config.OIDCConfigs {
s.OIDCConfig = oc
break
}
return s, nil
}
func getAllVersionsBundles(cluster *eksav1alpha1.Cluster, bundles *v1alpha1.Bundles, eksdReleases []eksdv1alpha1.Release) (map[eksav1alpha1.KubernetesVersion]*VersionsBundle, error) {
if len(eksdReleases) < 1 {
return nil, fmt.Errorf("no eksd releases were found")
}
m := make(map[eksav1alpha1.KubernetesVersion]*VersionsBundle, len(eksdReleases))
for _, eksd := range eksdReleases {
channel := strings.Replace(eksd.Spec.Channel, "-", ".", 1)
version := eksav1alpha1.KubernetesVersion(channel)
if _, ok := m[version]; ok {
continue
}
versionBundle, err := getVersionBundles(version, bundles, &eksd)
if err != nil {
return nil, err
}
m[version] = versionBundle
}
return m, nil
}
func getVersionBundles(version eksav1alpha1.KubernetesVersion, b *v1alpha1.Bundles, eksdRelease *eksdv1alpha1.Release) (*VersionsBundle, error) {
v, err := GetVersionsBundle(version, b)
if err != nil {
return nil, err
}
kd, err := buildKubeDistro(eksdRelease)
if err != nil {
return nil, err
}
vb := &VersionsBundle{
VersionsBundle: v,
KubeDistro: kd,
}
return vb, nil
}
// VersionsBundle returns a VersionsBundle if one exists for the provided kubernetes version and nil otherwise.
func (s *Spec) VersionsBundle(version eksav1alpha1.KubernetesVersion) *VersionsBundle {
vb, ok := s.VersionsBundles[version]
if !ok {
return nil
}
return vb
}
// ControlPlaneVersionsBundle returns a VersionsBundle for the top level kubernetes version.
func (s *Spec) ControlPlaneVersionsBundle() *VersionsBundle {
return s.VersionsBundle(s.Cluster.Spec.KubernetesVersion)
}
// WorkerNodeGroupVersionsBundle returns a VersionsBundle for the Worker Node's kubernetes version.
func (s *Spec) WorkerNodeGroupVersionsBundle(w eksav1alpha1.WorkerNodeGroupConfiguration) *VersionsBundle {
if w.KubernetesVersion != nil {
return s.VersionsBundle(*w.KubernetesVersion)
}
return s.ControlPlaneVersionsBundle()
}
func buildKubeDistro(eksd *eksdv1alpha1.Release) (*KubeDistro, error) {
kubeDistro := &KubeDistro{
EKSD: EKSD{
Channel: eksd.Spec.Channel,
Number: eksd.Spec.Number,
},
}
assets := make(map[string]*eksdv1alpha1.AssetImage)
for _, component := range eksd.Status.Components {
for _, asset := range component.Assets {
if asset.Image != nil {
assets[asset.Name] = asset.Image
}
}
if component.Name == "etcd" {
kubeDistro.EtcdVersion = strings.TrimPrefix(component.GitTag, "v")
}
}
kubeDistroComponents := map[string]*v1alpha1.Image{
"node-driver-registrar-image": &kubeDistro.NodeDriverRegistrar,
"livenessprobe-image": &kubeDistro.LivenessProbe,
"external-attacher-image": &kubeDistro.ExternalAttacher,
"external-provisioner-image": &kubeDistro.ExternalProvisioner,
"pause-image": &kubeDistro.Pause,
"etcd-image": &kubeDistro.EtcdImage,
"aws-iam-authenticator-image": &kubeDistro.AwsIamAuthImage,
"kube-proxy-image": &kubeDistro.KubeProxy,
}
for assetName, image := range kubeDistroComponents {
i := assets[assetName]
if i == nil {
return nil, fmt.Errorf("asset %s is no present in eksd release %s", assetName, eksd.Spec.Channel)
}
image.URI = i.URI
}
kubeDistroRepositories := map[string]*VersionedRepository{
"coredns-image": &kubeDistro.CoreDNS,
"etcd-image": &kubeDistro.Etcd,
"kube-apiserver-image": &kubeDistro.Kubernetes,
}
for assetName, image := range kubeDistroRepositories {
i := assets[assetName]
if i == nil {
return nil, fmt.Errorf("asset %s is not present in eksd release %s", assetName, eksd.Spec.Channel)
}
image.Repository, image.Tag = kubeDistroRepository(i)
}
return kubeDistro, nil
}
func kubeDistroRepository(image *eksdv1alpha1.AssetImage) (repo, tag string) {
i := v1alpha1.Image{
URI: image.URI,
}
lastInd := strings.LastIndex(i.Image(), "/")
if lastInd == -1 {
return i.Image(), i.Tag()
}
return i.Image()[:lastInd], i.Tag()
}
func (vb *VersionsBundle) Ovas() []v1alpha1.Archive {
return vb.VersionsBundle.Ovas()
}
func BundlesRefDefaulter() Defaulter {
return func(c *Config) error {
if c.Cluster.Spec.BundlesRef == nil {
c.Cluster.Spec.BundlesRef = &eksav1alpha1.BundlesRef{}
}
return nil
}
}