Peering webhooks #1310
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| package v1alpha1 | ||
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| import ( | ||
| "testing" | ||
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| "github.com/stretchr/testify/require" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| ) | ||
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|
There was a problem hiding this comment. Tests CR level validations (fields cannot be nil) |
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| func TestPeeringAcceptor_Validate(t *testing.T) { | ||
| cases := map[string]struct { | ||
| acceptor *PeeringAcceptor | ||
| expectedErrMsgs []string | ||
| }{ | ||
| "valid": { | ||
| acceptor: &PeeringAcceptor{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: "api", | ||
| }, | ||
| Spec: PeeringAcceptorSpec{ | ||
| Peer: &Peer{ | ||
| Secret: &Secret{ | ||
| Name: "api-token", | ||
| Key: "data", | ||
| Backend: "kubernetes", | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| "no peer specified": { | ||
| acceptor: &PeeringAcceptor{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: "api", | ||
| }, | ||
| Spec: PeeringAcceptorSpec{}, | ||
| }, | ||
| expectedErrMsgs: []string{ | ||
| `spec.peer: Invalid value: "null": peer must be specified`, | ||
| }, | ||
| }, | ||
| "no secret specified": { | ||
| acceptor: &PeeringAcceptor{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: "api", | ||
| }, | ||
| Spec: PeeringAcceptorSpec{ | ||
| Peer: &Peer{}, | ||
| }, | ||
| }, | ||
| expectedErrMsgs: []string{ | ||
| `spec.peer.secret: Invalid value: "null": secret must be specified`, | ||
| }, | ||
| }, | ||
| "invalid secret backend": { | ||
| acceptor: &PeeringAcceptor{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: "api", | ||
| }, | ||
| Spec: PeeringAcceptorSpec{ | ||
| Peer: &Peer{ | ||
| Secret: &Secret{ | ||
| Backend: "invalid", | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| expectedErrMsgs: []string{ | ||
| `spec.peer.secret.backend: Invalid value: "invalid": backend must be "kubernetes"`, | ||
| }, | ||
| }, | ||
| } | ||
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| for name, testCase := range cases { | ||
| t.Run(name, func(t *testing.T) { | ||
| err := testCase.acceptor.Validate() | ||
| if len(testCase.expectedErrMsgs) != 0 { | ||
| require.Error(t, err) | ||
| for _, s := range testCase.expectedErrMsgs { | ||
| require.Contains(t, err.Error(), s) | ||
| } | ||
| } else { | ||
| require.NoError(t, err) | ||
| } | ||
| }) | ||
| } | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| package v1alpha1 | ||
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| import ( | ||
| "context" | ||
| "fmt" | ||
| "net/http" | ||
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| "github.com/go-logr/logr" | ||
| capi "github.com/hashicorp/consul/api" | ||
| admissionv1 "k8s.io/api/admission/v1" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| "sigs.k8s.io/controller-runtime/pkg/webhook/admission" | ||
| ) | ||
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| // +kubebuilder:object:generate=false | ||
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| type PeeringAcceptorWebhook struct { | ||
| client.Client | ||
| ConsulClient *capi.Client | ||
| Logger logr.Logger | ||
| decoder *admission.Decoder | ||
| //ConsulMeta common.ConsulMeta | ||
| } | ||
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| // NOTE: The path value in the below line is the path to the webhook. | ||
| // If it is updated, run code-gen, update subcommand/controller/command.go | ||
| // and the consul-helm value for the path to the webhook. | ||
| // | ||
| // NOTE: The below line cannot be combined with any other comment. If it is | ||
| // it will break the code generation. | ||
| // | ||
| // +kubebuilder:webhook:verbs=create;update,path=/mutate-v1alpha1-peeringacceptors,mutating=true,failurePolicy=fail,groups=consul.hashicorp.com,resources=peeringacceptors,versions=v1alpha1,name=mutate-peeringacceptors.consul.hashicorp.com,sideEffects=None,admissionReviewVersions=v1beta1;v1 | ||
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| func (v *PeeringAcceptorWebhook) Handle(ctx context.Context, req admission.Request) admission.Response { | ||
| var acceptor PeeringAcceptor | ||
| var acceptorList PeeringAcceptorList | ||
| err := v.decoder.Decode(req, &acceptor) | ||
| if err != nil { | ||
| return admission.Errored(http.StatusBadRequest, err) | ||
| } | ||
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| // Call validate first to ensure all the fields are validated before checking for secret name duplicates. | ||
| if err := acceptor.Validate(); err != nil { | ||
| return admission.Errored(http.StatusBadRequest, err) | ||
| } | ||
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| if req.Operation == admissionv1.Create { | ||
| v.Logger.Info("validate create", "name", acceptor.KubernetesName()) | ||
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| if err := v.Client.List(ctx, &acceptorList); err != nil { | ||
| return admission.Errored(http.StatusInternalServerError, err) | ||
| } | ||
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| for _, item := range acceptorList.Items { | ||
| // If any peering acceptor resource has the same secret name as this one, reject it. | ||
| if item.Namespace == acceptor.Namespace && item.Secret().Name == acceptor.Secret().Name { | ||
| return admission.Errored(http.StatusBadRequest, | ||
| fmt.Errorf("an existing PeeringAcceptor resource has the same secret name `name: %s, namespace: %s`", acceptor.Secret().Name, acceptor.Namespace)) | ||
| } | ||
| } | ||
| } | ||
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| return admission.Allowed(fmt.Sprintf("valid %s request", acceptor.KubeKind())) | ||
| } | ||
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| func (v *PeeringAcceptorWebhook) InjectDecoder(d *admission.Decoder) error { | ||
| v.decoder = d | ||
| return nil | ||
| } |
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These functions are similarly named to the config entry webhooks but we don't need all the functions here because we don't need to implement the config entry webhook interface.