mirror of
https://github.com/projectcapsule/capsule.git
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e286dc94a7
* chore(deps): update dependency golangci/golangci-lint to v2 * chore(golint): bump v2 and satisfy linters Signed-off-by: Oliver Bähler <oliverbaehler@hotmail.com> --------- Signed-off-by: Oliver Bähler <oliverbaehler@hotmail.com> Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> Co-authored-by: Oliver Bähler <oliverbaehler@hotmail.com>
90 lines
3.1 KiB
Go
90 lines
3.1 KiB
Go
// Copyright 2020-2023 Project Capsule Authors.
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// SPDX-License-Identifier: Apache-2.0
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package tenant
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import (
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"context"
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"fmt"
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"strings"
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corev1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/fields"
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"k8s.io/client-go/tools/record"
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"sigs.k8s.io/controller-runtime/pkg/client"
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"sigs.k8s.io/controller-runtime/pkg/webhook/admission"
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capsulev1beta2 "github.com/projectcapsule/capsule/api/v1beta2"
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"github.com/projectcapsule/capsule/pkg/indexer/tenantresource"
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capsulewebhook "github.com/projectcapsule/capsule/pkg/webhook"
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"github.com/projectcapsule/capsule/pkg/webhook/utils"
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)
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type cordoningHandler struct{}
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func WriteOpsHandler() capsulewebhook.Handler {
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return &cordoningHandler{}
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}
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func (h *cordoningHandler) OnCreate(client.Client, admission.Decoder, record.EventRecorder) capsulewebhook.Func {
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return func(context.Context, admission.Request) *admission.Response {
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return nil
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}
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}
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func (h *cordoningHandler) OnDelete(client client.Client, _ admission.Decoder, recorder record.EventRecorder) capsulewebhook.Func {
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return func(ctx context.Context, req admission.Request) *admission.Response {
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return h.handler(ctx, client, req, recorder)
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}
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}
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func (h *cordoningHandler) OnUpdate(client client.Client, _ admission.Decoder, recorder record.EventRecorder) capsulewebhook.Func {
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return func(ctx context.Context, req admission.Request) *admission.Response {
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return h.handler(ctx, client, req, recorder)
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}
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}
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func (h *cordoningHandler) handler(ctx context.Context, clt client.Client, req admission.Request, recorder record.EventRecorder) *admission.Response {
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tntList := &capsulev1beta2.TenantList{}
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if err := clt.List(ctx, tntList, client.MatchingFieldsSelector{Selector: fields.OneTermEqualSelector(".status.namespaces", req.Namespace)}); err != nil {
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return utils.ErroredResponse(err)
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}
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// resource is not inside a Tenant namespace:
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// we can avoid any kind of extra check.
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if len(tntList.Items) == 0 {
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return nil
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}
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// Checking if the object is managed by a TenantResource, local or global
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ors := capsulev1beta2.ObjectReferenceStatus{
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ObjectReferenceAbstract: capsulev1beta2.ObjectReferenceAbstract{
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Kind: req.Kind.Kind,
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Namespace: req.Namespace,
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APIVersion: req.Kind.Version,
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},
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Name: req.Name,
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}
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global, local := &capsulev1beta2.GlobalTenantResourceList{}, &capsulev1beta2.TenantResourceList{}
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if err := clt.List(ctx, global, client.MatchingFieldsSelector{Selector: fields.OneTermEqualSelector(tenantresource.IndexerFieldName, ors.String())}); err != nil {
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return utils.ErroredResponse(err)
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}
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if err := clt.List(ctx, local, client.MatchingFieldsSelector{Selector: fields.OneTermEqualSelector(tenantresource.IndexerFieldName, ors.String())}); err != nil {
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return utils.ErroredResponse(err)
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}
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if len(local.Items) > 0 || len(global.Items) > 0 {
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tnt := tntList.Items[0]
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recorder.Eventf(&tnt, corev1.EventTypeWarning, "TenantResourceWriteOp", "%s %s/%s cannot be %sd, resource is managed by the Tenant", req.Kind.String(), req.Namespace, req.Name, strings.ToLower(string(req.Operation)))
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response := admission.Denied(fmt.Sprintf("resource %s is managed at the Tenant level", req.Name))
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return &response
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}
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return nil
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}
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