/
tenant_delete_reconciler.go
99 lines (85 loc) · 2.52 KB
/
tenant_delete_reconciler.go
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package core
import (
"fmt"
corev1alpha1 "github.com/kristofferahl/aeto/apis/core/v1alpha1"
"github.com/kristofferahl/aeto/internal/pkg/config"
"github.com/kristofferahl/aeto/internal/pkg/eventsource"
"github.com/kristofferahl/aeto/internal/pkg/kubernetes"
"github.com/kristofferahl/aeto/internal/pkg/reconcile"
"github.com/kristofferahl/aeto/internal/pkg/tenant"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
"sigs.k8s.io/controller-runtime/pkg/client"
)
func ReconcileDelete(ctx reconcile.Context, k8s kubernetes.Client, store eventsource.Repository, stream eventsource.Stream) reconcile.Result {
state := deleteState{
Deleted: false,
ResourceSets: make([]string, 0),
}
handler := NewDeleteEventHandler(&state)
res := eventsource.Replay(handler, stream.Events())
if res.Failed() {
ctx.Log.Error(res.Error, "failed to replay delete instructions from events")
return ctx.Error(res.Error)
}
if !state.Deleted {
return ctx.RequeueIn(5, "waiting for delete event to appear")
}
deletedResourceSets := 0
if len(state.ResourceSets) > 0 {
for _, rs := range state.ResourceSets {
nn := types.NamespacedName{
Namespace: config.Operator.Namespace,
Name: rs,
}
var existing corev1alpha1.ResourceSet
if err := k8s.Get(ctx, nn, &existing); err != nil {
if client.IgnoreNotFound(err) != nil {
// Failed to fetch
continue
} else {
// Already deleted, all good...
deletedResourceSets++
}
} else {
if err := k8s.Delete(ctx, &corev1alpha1.ResourceSet{
ObjectMeta: metav1.ObjectMeta{
Namespace: nn.Namespace,
Name: nn.Name,
},
}); client.IgnoreNotFound(err) != nil {
continue
}
}
}
}
if deletedResourceSets != len(state.ResourceSets) {
return ctx.RequeueIn(15, fmt.Sprintf("%d out of %d ResourceSets deleted", deletedResourceSets, len(state.ResourceSets)))
}
err := store.Delete(stream)
if err != nil {
ctx.Log.Error(err, "failed to delete EventStoreChunk(s)")
return ctx.Error(err)
}
return ctx.Done()
}
type DeleteEventHandler struct {
state *deleteState
}
type deleteState struct {
Deleted bool
ResourceSets []string
}
func NewDeleteEventHandler(state *deleteState) eventsource.EventHandler {
return &DeleteEventHandler{
state: state,
}
}
func (h *DeleteEventHandler) On(e eventsource.Event) {
switch event := e.(type) {
case *tenant.ResourceSetCreated:
h.state.ResourceSets = append(h.state.ResourceSets, event.Name)
case *tenant.TenantDeleted:
h.state.Deleted = true
}
}