-
Notifications
You must be signed in to change notification settings - Fork 110
/
backendgroup_mutator.go
65 lines (53 loc) · 2.23 KB
/
backendgroup_mutator.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
62
63
64
65
package appmesh
import (
"context"
appmesh "github.com/aws/aws-app-mesh-controller-for-k8s/apis/appmesh/v1beta2"
"github.com/aws/aws-app-mesh-controller-for-k8s/pkg/mesh"
"github.com/aws/aws-app-mesh-controller-for-k8s/pkg/webhook"
"github.com/pkg/errors"
"k8s.io/apimachinery/pkg/runtime"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/webhook/admission"
)
const apiPathMutateAppMeshBackendGroup = "/mutate-appmesh-k8s-aws-v1beta2-backendgroup"
// NewBackendGroupMutator returns a mutator for BackendGroup.
func NewBackendGroupMutator(meshMembershipDesignator mesh.MembershipDesignator) *backendGroupMutator {
return &backendGroupMutator{
meshMembershipDesignator: meshMembershipDesignator,
}
}
var _ webhook.Mutator = &backendGroupMutator{}
type backendGroupMutator struct {
meshMembershipDesignator mesh.MembershipDesignator
}
func (m *backendGroupMutator) Prototype(req admission.Request) (runtime.Object, error) {
return &appmesh.BackendGroup{}, nil
}
func (m *backendGroupMutator) MutateCreate(ctx context.Context, obj runtime.Object) (runtime.Object, error) {
bg := obj.(*appmesh.BackendGroup)
if err := m.designateMeshMembership(ctx, bg); err != nil {
return nil, err
}
return bg, nil
}
func (m *backendGroupMutator) MutateUpdate(ctx context.Context, obj runtime.Object, oldObj runtime.Object) (runtime.Object, error) {
return obj, nil
}
func (m *backendGroupMutator) designateMeshMembership(ctx context.Context, bg *appmesh.BackendGroup) error {
if bg.Spec.MeshRef != nil {
return errors.Errorf("%s create may not specify read-only field: %s", "BackendGroup", "spec.meshRef")
}
mesh, err := m.meshMembershipDesignator.Designate(ctx, bg)
if err != nil {
return err
}
bg.Spec.MeshRef = &appmesh.MeshReference{
Name: mesh.Name,
UID: mesh.UID,
}
return nil
}
// +kubebuilder:webhook:path=/mutate-appmesh-k8s-aws-v1beta2-backendgroup,mutating=true,failurePolicy=fail,groups=appmesh.k8s.aws,resources=backendgroups,verbs=create;update,versions=v1beta2,name=mbackendgroup.appmesh.k8s.aws,sideEffects=None,webhookVersions=v1beta1
func (m *backendGroupMutator) SetupWithManager(mgr ctrl.Manager) {
mgr.GetWebhookServer().Register(apiPathMutateAppMeshBackendGroup, webhook.MutatingWebhookForMutator(m))
}