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kubereader.go
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kubereader.go
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package hardware
import (
"context"
"fmt"
tinkv1alpha1 "github.com/tinkerbell/tink/pkg/apis/core/v1alpha1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"sigs.k8s.io/controller-runtime/pkg/client"
rufiov1alpha1 "github.com/aws/eks-anywhere/pkg/api/v1alpha1/thirdparty/tinkerbell/rufio"
"github.com/aws/eks-anywhere/pkg/constants"
)
// OwnerNameLabel is the label set by CAPT to mark a hardware as part of a cluster.
const OwnerNameLabel string = "v1alpha1.tinkerbell.org/ownerName"
// KubeReader reads the tinkerbell hardware objects from the cluster.
// It holds the objects in a catalogue.
type KubeReader struct {
client client.Client
catalogue *Catalogue
}
// NewKubeReader returns a new instance of KubeReader.
// Defines a new Catalogue for each KubeReader instance.
func NewKubeReader(client client.Client) *KubeReader {
return &KubeReader{
client: client,
catalogue: NewCatalogue(
WithHardwareIDIndex(),
WithHardwareBMCRefIndex(),
WithBMCNameIndex(),
WithSecretNameIndex(),
),
}
}
// LoadHardware fetches the unprovisioned tinkerbell hardware objects and inserts in to KubeReader catalogue.
func (kr *KubeReader) LoadHardware(ctx context.Context) error {
hwList, err := kr.getUnprovisionedTinkerbellHardware(ctx)
if err != nil {
return fmt.Errorf("failed to build catalogue: %v", err)
}
for i := range hwList {
if err := kr.catalogue.InsertHardware(&hwList[i]); err != nil {
return err
}
}
return nil
}
// GetCatalogue returns the KubeReader catalogue.
func (kr *KubeReader) GetCatalogue() *Catalogue {
return kr.catalogue
}
// getUnprovisionedTinkerbellHardware fetches the tinkerbell hardware objects on the cluster which do not have an ownerName label.
func (kr *KubeReader) getUnprovisionedTinkerbellHardware(ctx context.Context) ([]tinkv1alpha1.Hardware, error) {
var selectedHardware tinkv1alpha1.HardwareList
selector, err := metav1.LabelSelectorAsSelector(&metav1.LabelSelector{
MatchExpressions: []metav1.LabelSelectorRequirement{
{
Key: OwnerNameLabel,
Operator: metav1.LabelSelectorOpDoesNotExist,
},
},
})
if err != nil {
return nil, fmt.Errorf("converting label selector: %w", err)
}
if err := kr.client.List(ctx, &selectedHardware, &client.ListOptions{LabelSelector: selector}, client.InNamespace(constants.EksaSystemNamespace)); err != nil {
return nil, fmt.Errorf("listing hardware without owner: %v", err)
}
return selectedHardware.Items, nil
}
// LoadRufioMachines fetches rufio machine objects from the cluster and inserts into KubeReader catalogue.
func (kr *KubeReader) LoadRufioMachines(ctx context.Context) error {
var rufioMachines rufiov1alpha1.MachineList
if err := kr.client.List(ctx, &rufioMachines, &client.ListOptions{Namespace: constants.EksaSystemNamespace}); err != nil {
return fmt.Errorf("listing rufio machines: %v", err)
}
for i := range rufioMachines.Items {
if err := kr.catalogue.InsertBMC(&rufioMachines.Items[i]); err != nil {
return err
}
}
return nil
}