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package computevm
import (
"context"
"crypto/sha256"
"encoding/hex"
"encoding/json"
"errors"
"fmt"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"github.com/johnandersen777/socialweb-computer-kcp/api/v1alpha1"
"github.com/johnandersen777/socialweb-computer-kcp/internal/atproto/market"
"github.com/johnandersen777/socialweb-computer-kcp/internal/controllers/runtime/kube"
commonv1 "github.com/johnandersen777/socialweb-computer-kcp/api/common/v1alpha1"
)
const (
TerminationSyncAdapter = "atproto.market.event"
TerminationSyncSourceLabel = "statesync.socialweb.computer/source"
TerminationSyncUIDLabel = "statesync.socialweb.computer/source-uid"
TerminationSyncVMNameLabel = "statesync.socialweb.computer/computevm-name"
TerminationSyncSource = "ComputeVM"
TerminationSyncPrefix = "termination-"
)
func TerminationSyncName(uid string) string {
sum := sha256.Sum256([]byte(uid))
return TerminationSyncPrefix + hex.EncodeToString(sum[:8])
}
func TerminationStateSync(o *v1alpha1.ComputeVM, workspace, reason, observedAt string, request *commonv1.StrongRef) (*v1alpha1.StateSync, error) {
if o == nil || o.Spec.Contract == nil {
return nil, errors.New("computevm: a termination StateSync needs a contract")
}
contract := o.Spec.Contract
if contract.Receipt.URI == "" || contract.Receipt.CID == "" {
return nil, errors.New("computevm: a termination StateSync needs a receipt")
}
if reason == "" || observedAt == "" {
return nil, errors.New("computevm: a termination StateSync needs a reason and an observed time")
}
if request == nil {
request = ReleaseRequestRef(o)
}
terminated := market.ComputeEventsVMTerminated{Reason: reason, ObservedAt: observedAt, CreatedAt: observedAt}
if request != nil && request.URI != "" {
ref := market.NewStrongRef(request.URI, request.CID)
terminated.Request = &ref
}
record, err := market.EncodeRecord(terminated)
if err != nil {
return nil, err
}
payload := map[string]any{
"collection": market.ComputeEventsVMTerminatedNSID,
"receipt": map[string]any{"uri": contract.Receipt.URI, "cid": contract.Receipt.CID},
"record": record,
}
if contract.SubmitEventURL != "" {
payload["submitEventUrl"] = contract.SubmitEventURL
}
raw, err := json.Marshal(payload)
if err != nil {
return nil, err
}
sync := &v1alpha1.StateSync{
TypeMeta: metav1.TypeMeta{APIVersion: v1alpha1.GroupVersion.String(), Kind: "StateSync"},
ObjectMeta: metav1.ObjectMeta{Name: TerminationSyncName(string(o.UID)), Labels: map[string]string{
TerminationSyncSourceLabel: TerminationSyncSource,
TerminationSyncUIDLabel: string(o.UID),
TerminationSyncVMNameLabel: o.Name,
}},
Spec: v1alpha1.StateSyncSpec{
Source: &v1alpha1.StateSyncSource{Workspace: workspace, ApiVersion: v1alpha1.GroupVersion.String(), Kind: "ComputeVM",
Name: o.Name, UID: string(o.UID)},
Sink: v1alpha1.StateSyncSink{Adapter: TerminationSyncAdapter},
Direction: v1alpha1.StateSyncDirectionOutbound,
Payload: raw,
IdempotencyKey: market.TerminationKey(contract.Receipt.URI),
ConflictPolicy: v1alpha1.StateSyncConflictSourceWins,
DeletionPolicy: v1alpha1.StateSyncDeletionRetain,
},
}
for _, owner := range o.OwnerReferences {
if owner.Kind != "Bid" || owner.UID == "" {
continue
}
sync.OwnerReferences = []metav1.OwnerReference{{APIVersion: owner.APIVersion, Kind: owner.Kind, Name: owner.Name, UID: owner.UID}}
break
}
return sync, nil
}
func TerminationReportable(o v1alpha1.ComputeVM) bool {
contract := o.Spec.Contract
return contract != nil && contract.Receipt.URI != "" && contract.Receipt.CID != ""
}
func (h *Host) EnsureTerminationSync(ctx context.Context, o v1alpha1.ComputeVM, reason, observedAt string, request *commonv1.StrongRef) error {
if !TerminationReportable(o) {
return nil
}
object, err := TerminationStateSync(&o, h.c.Workspace, reason, observedAt, request)
if err != nil {
return err
}
name := object.Name
_, err = kube.Get[v1alpha1.StateSync](ctx, h.syncs, name)
if err == nil {
return nil
}
if !apierrors.IsNotFound(err) {
return fmt.Errorf("computevm: reading the termination StateSync %s: %w", name, err)
}
if _, err := kube.Apply[v1alpha1.StateSync](ctx, h.syncs, object, kube.ApplyOptions{FieldManager: v1alpha1.FieldManagerComputeVMController, Force: true}); err != nil {
return fmt.Errorf("computevm: applying the termination StateSync %s: %w", name, err)
}
h.c.log().Info("a termination StateSync is created", "computevm", o.Name, "statesync", name)
return nil
}
