-
Notifications
You must be signed in to change notification settings - Fork 0
/
finalizer.go
61 lines (51 loc) · 2.19 KB
/
finalizer.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
package reconcile
import (
"fmt"
"time"
"github.com/kristofferahl/aeto/internal/pkg/util"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
)
type Finalizer interface {
Name() string
Handler() func(Context) Result
}
func WithFinalizer(client client.Client, ctx Context, obj client.Object, finalizer Finalizer) (*ctrl.Result, error) {
objTypeName := obj.GetObjectKind().GroupVersionKind().Kind
// Examine DeletionTimestamp to determine if object is under deletion
if obj.GetDeletionTimestamp().IsZero() {
if !util.SliceContainsString(obj.GetFinalizers(), finalizer.Name()) {
ctx.Log.V(1).Info(fmt.Sprintf("ensuring finalizer is present on %s", objTypeName), "finalizer", finalizer.Name())
finalizers := append(obj.GetFinalizers(), finalizer.Name())
obj.SetFinalizers(finalizers)
if err := client.Update(ctx.Context, obj); err != nil {
return &ctrl.Result{}, err
}
ctx.Log.V(1).Info(fmt.Sprintf("finalizer set on %s", objTypeName), "finalizer", finalizer.Name())
}
} else {
// The object is being deleted
if util.SliceContainsString(obj.GetFinalizers(), finalizer.Name()) {
ctx.Log.Info(fmt.Sprintf("%s is being deleted, finalizer is present", objTypeName), "finalizer", finalizer.Name())
result := finalizer.Handler()(ctx)
if result.RequiresRequeue() {
ctx.Log.V(1).Info(fmt.Sprintf("finalizer requires requeue for %s", objTypeName), "reason", result.requeueReason, "result", result, "finalizer", finalizer.Name())
res, err := result.asCtrlResultError()
return &res, err
}
ctx.Log.V(1).Info(fmt.Sprintf("removing finalizer for %s", objTypeName), "finalizer", finalizer.Name())
finalizers := util.SliceRemoveString(obj.GetFinalizers(), finalizer.Name())
obj.SetFinalizers(finalizers)
if err := client.Update(ctx.Context, obj); err != nil {
return &ctrl.Result{}, err
}
time.Sleep(5 * time.Second) // NOTE: Sleeping to stop new reconcile where object still exists in cache
ctx.Log.Info(fmt.Sprintf("finalizer removed for %s", objTypeName), "finalizer", finalizer.Name())
}
return &ctrl.Result{}, nil
}
return nil, nil
}
func FinalizerInProgress(r *ctrl.Result, err error) bool {
return r != nil || err != nil
}