mirror of
https://github.com/projectcapsule/capsule.git
synced 2026-03-05 11:10:58 +00:00
95 lines
2.7 KiB
Go
95 lines
2.7 KiB
Go
// Copyright 2020-2021 Clastix Labs
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// SPDX-License-Identifier: Apache-2.0
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package registry
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import (
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"context"
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"net/http"
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v1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/fields"
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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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capsulev1alpha1 "github.com/clastix/capsule/api/v1alpha1"
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"github.com/clastix/capsule/api/v1alpha1/domain"
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capsulewebhook "github.com/clastix/capsule/pkg/webhook"
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)
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// +kubebuilder:webhook:path=/validating-v1-registry,mutating=false,sideEffects=None,admissionReviewVersions=v1,failurePolicy=ignore,groups="",resources=pods,verbs=create,versions=v1,name=pod.capsule.clastix.io
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type webhook struct {
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handler capsulewebhook.Handler
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}
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func Webhook(handler capsulewebhook.Handler) capsulewebhook.Webhook {
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return &webhook{handler: handler}
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}
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func (w *webhook) GetName() string {
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return "registry"
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}
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func (w *webhook) GetPath() string {
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return "/validating-v1-registry"
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}
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func (w *webhook) GetHandler() capsulewebhook.Handler {
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return w.handler
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}
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type handler struct {
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}
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func Handler() capsulewebhook.Handler {
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return &handler{}
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}
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func (h *handler) OnCreate(c client.Client, decoder *admission.Decoder) capsulewebhook.Func {
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return func(ctx context.Context, req admission.Request) admission.Response {
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pod := &v1.Pod{}
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if err := decoder.Decode(req, pod); err != nil {
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return admission.Errored(http.StatusBadRequest, err)
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}
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tntList := &capsulev1alpha1.TenantList{}
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if err := c.List(ctx, tntList, client.MatchingFieldsSelector{
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Selector: fields.OneTermEqualSelector(".status.namespaces", pod.Namespace),
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}); err != nil {
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return admission.Errored(http.StatusBadRequest, err)
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}
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if len(tntList.Items) == 0 {
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return admission.Allowed("")
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}
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tnt := tntList.Items[0]
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if tnt.Spec.ContainerRegistries != nil {
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var valid, matched bool
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for _, container := range pod.Spec.Containers {
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registry := domain.NewRegistry(container.Image)
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valid = tnt.Spec.ContainerRegistries.ExactMatch(registry.Registry())
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matched = tnt.Spec.ContainerRegistries.RegexMatch(registry.Registry())
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if !valid && !matched {
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return admission.Errored(http.StatusBadRequest, NewContainerRegistryForbidden(container.Image, *tnt.Spec.ContainerRegistries))
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}
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}
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}
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return admission.Allowed("")
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}
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}
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func (h *handler) OnDelete(client client.Client, decoder *admission.Decoder) capsulewebhook.Func {
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return func(ctx context.Context, req admission.Request) admission.Response {
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return admission.Allowed("")
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}
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}
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func (h *handler) OnUpdate(client client.Client, decoder *admission.Decoder) capsulewebhook.Func {
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return func(ctx context.Context, req admission.Request) admission.Response {
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return admission.Allowed("")
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}
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}
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