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operator: Add OpenShift CloudCredentials support for AWS STS (#11524)
Co-authored-by: Periklis Tsirakidis <periklis@redhat.com>
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71 changes: 71 additions & 0 deletions
71
operator/controllers/loki/credentialsrequests_controller.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| package controllers | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
||
| "github.com/go-logr/logr" | ||
| apierrors "k8s.io/apimachinery/pkg/api/errors" | ||
| "k8s.io/apimachinery/pkg/runtime" | ||
| ctrl "sigs.k8s.io/controller-runtime" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
|
|
||
| lokiv1 "github.com/grafana/loki/operator/apis/loki/v1" | ||
| "github.com/grafana/loki/operator/controllers/loki/internal/lokistack" | ||
| "github.com/grafana/loki/operator/controllers/loki/internal/management/state" | ||
| "github.com/grafana/loki/operator/internal/external/k8s" | ||
| "github.com/grafana/loki/operator/internal/handlers" | ||
| ) | ||
|
|
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| // CredentialsRequestsReconciler reconciles a single CredentialsRequest resource for each LokiStack request. | ||
| type CredentialsRequestsReconciler struct { | ||
| client.Client | ||
| Scheme *runtime.Scheme | ||
| Log logr.Logger | ||
| } | ||
|
|
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| // Reconcile creates a single CredentialsRequest per LokiStack for the OpenShift cloud-credentials-operator (CCO) to | ||
| // provide a managed cloud credentials Secret. On successful creation, the LokiStack resource is annotated | ||
| // with `loki.grafana.com/credentials-request-secret-ref` that refers to the secret provided by CCO. If the LokiStack | ||
| // resource is not found its accompanying CredentialsRequest resource is deleted. | ||
| func (r *CredentialsRequestsReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) { | ||
| var stack lokiv1.LokiStack | ||
| if err := r.Client.Get(ctx, req.NamespacedName, &stack); err != nil { | ||
| if apierrors.IsNotFound(err) { | ||
| return ctrl.Result{}, handlers.DeleteCredentialsRequest(ctx, r.Client, req.NamespacedName) | ||
| } | ||
| return ctrl.Result{}, err | ||
| } | ||
|
|
||
| managed, err := state.IsManaged(ctx, req, r.Client) | ||
| if err != nil { | ||
| return ctrl.Result{}, err | ||
| } | ||
| if !managed { | ||
| r.Log.Info("Skipping reconciliation for unmanaged LokiStack resource", "name", req.String()) | ||
| // Stop requeueing for unmanaged LokiStack custom resources | ||
| return ctrl.Result{}, nil | ||
| } | ||
|
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| secretRef, err := handlers.CreateCredentialsRequest(ctx, r.Client, req.NamespacedName) | ||
| if err != nil { | ||
| return ctrl.Result{}, err | ||
| } | ||
|
|
||
| if err := lokistack.AnnotateForCredentialsRequest(ctx, r.Client, req.NamespacedName, secretRef); err != nil { | ||
| return ctrl.Result{}, err | ||
| } | ||
|
|
||
| return ctrl.Result{}, nil | ||
| } | ||
|
|
||
| // SetupWithManager sets up the controller with the Manager. | ||
| func (r *CredentialsRequestsReconciler) SetupWithManager(mgr ctrl.Manager) error { | ||
| b := ctrl.NewControllerManagedBy(mgr) | ||
| return r.buildController(k8s.NewCtrlBuilder(b)) | ||
| } | ||
|
|
||
| func (r *CredentialsRequestsReconciler) buildController(bld k8s.Builder) error { | ||
| return bld. | ||
| For(&lokiv1.LokiStack{}). | ||
| Complete(r) | ||
| } |
155 changes: 155 additions & 0 deletions
155
operator/controllers/loki/credentialsrequests_controller_test.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,155 @@ | ||
| package controllers | ||
|
|
||
| import ( | ||
| "context" | ||
| "testing" | ||
|
|
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| cloudcredentialsv1 "github.com/openshift/cloud-credential-operator/pkg/apis/cloudcredential/v1" | ||
| "github.com/stretchr/testify/require" | ||
| apierrors "k8s.io/apimachinery/pkg/api/errors" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/apimachinery/pkg/runtime/schema" | ||
| "k8s.io/apimachinery/pkg/types" | ||
| ctrl "sigs.k8s.io/controller-runtime" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
|
|
||
| lokiv1 "github.com/grafana/loki/operator/apis/loki/v1" | ||
| "github.com/grafana/loki/operator/internal/external/k8s/k8sfakes" | ||
| "github.com/grafana/loki/operator/internal/manifests/storage" | ||
| ) | ||
|
|
||
| func TestCredentialsRequestController_RegistersCustomResource_WithDefaultPredicates(t *testing.T) { | ||
| b := &k8sfakes.FakeBuilder{} | ||
| k := &k8sfakes.FakeClient{} | ||
| c := &CredentialsRequestsReconciler{Client: k, Scheme: scheme} | ||
|
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| b.ForReturns(b) | ||
| b.OwnsReturns(b) | ||
|
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| err := c.buildController(b) | ||
| require.NoError(t, err) | ||
|
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| // Require only one For-Call for the custom resource | ||
| require.Equal(t, 1, b.ForCallCount()) | ||
|
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| // Require For-call with LokiStack resource | ||
| obj, _ := b.ForArgsForCall(0) | ||
| require.Equal(t, &lokiv1.LokiStack{}, obj) | ||
| } | ||
|
|
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| func TestCredentialsRequestController_DeleteCredentialsRequest_WhenLokiStackNotFound(t *testing.T) { | ||
| k := &k8sfakes.FakeClient{} | ||
| c := &CredentialsRequestsReconciler{Client: k, Scheme: scheme} | ||
| r := ctrl.Request{ | ||
| NamespacedName: types.NamespacedName{ | ||
| Name: "my-stack", | ||
| Namespace: "ns", | ||
| }, | ||
| } | ||
|
|
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| // Set managed auth environment | ||
| t.Setenv("ROLEARN", "a-role-arn") | ||
|
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| k.GetStub = func(_ context.Context, key types.NamespacedName, _ client.Object, _ ...client.GetOption) error { | ||
| if key.Name == r.Name && key.Namespace == r.Namespace { | ||
| return apierrors.NewNotFound(schema.GroupResource{}, "lokistack not found") | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| res, err := c.Reconcile(context.Background(), r) | ||
| require.NoError(t, err) | ||
| require.Equal(t, ctrl.Result{}, res) | ||
| require.Equal(t, 1, k.DeleteCallCount()) | ||
| } | ||
|
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| func TestCredentialsRequestController_CreateCredentialsRequest_WhenLokiStackNotAnnotated(t *testing.T) { | ||
| k := &k8sfakes.FakeClient{} | ||
| c := &CredentialsRequestsReconciler{Client: k, Scheme: scheme} | ||
| r := ctrl.Request{ | ||
| NamespacedName: types.NamespacedName{ | ||
| Name: "my-stack", | ||
| Namespace: "ns", | ||
| }, | ||
| } | ||
| s := lokiv1.LokiStack{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: "my-stack", | ||
| Namespace: "ns", | ||
| }, | ||
| Spec: lokiv1.LokiStackSpec{ | ||
| ManagementState: lokiv1.ManagementStateManaged, | ||
| }, | ||
| } | ||
|
|
||
| // Set managed auth environment | ||
| t.Setenv("ROLEARN", "a-role-arn") | ||
|
|
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| k.GetStub = func(_ context.Context, key types.NamespacedName, out client.Object, _ ...client.GetOption) error { | ||
| if key.Name == r.Name && key.Namespace == r.Namespace { | ||
| k.SetClientObject(out, &s) | ||
| return nil | ||
| } | ||
| return apierrors.NewNotFound(schema.GroupResource{}, "lokistack not found") | ||
| } | ||
|
|
||
| k.CreateStub = func(_ context.Context, o client.Object, _ ...client.CreateOption) error { | ||
| _, isCredReq := o.(*cloudcredentialsv1.CredentialsRequest) | ||
| if !isCredReq { | ||
| return apierrors.NewBadRequest("something went wrong creating a credentials request") | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| k.UpdateStub = func(_ context.Context, o client.Object, _ ...client.UpdateOption) error { | ||
| stack, ok := o.(*lokiv1.LokiStack) | ||
| if !ok { | ||
| return apierrors.NewBadRequest("something went wrong creating a credentials request") | ||
| } | ||
|
|
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| _, hasSecretRef := stack.Annotations[storage.AnnotationCredentialsRequestsSecretRef] | ||
| if !hasSecretRef { | ||
| return apierrors.NewBadRequest("something went updating the lokistack annotations") | ||
| } | ||
| return nil | ||
| } | ||
|
|
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| res, err := c.Reconcile(context.Background(), r) | ||
| require.NoError(t, err) | ||
| require.Equal(t, ctrl.Result{}, res) | ||
| require.Equal(t, 1, k.CreateCallCount()) | ||
| require.Equal(t, 1, k.UpdateCallCount()) | ||
| } | ||
|
|
||
| func TestCredentialsRequestController_SkipsUnmanaged(t *testing.T) { | ||
| k := &k8sfakes.FakeClient{} | ||
| c := &CredentialsRequestsReconciler{Client: k, Scheme: scheme} | ||
| r := ctrl.Request{ | ||
| NamespacedName: types.NamespacedName{ | ||
| Name: "my-stack", | ||
| Namespace: "ns", | ||
| }, | ||
| } | ||
|
|
||
| s := lokiv1.LokiStack{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: "my-stack", | ||
| Namespace: "ns", | ||
| }, | ||
| Spec: lokiv1.LokiStackSpec{ | ||
| ManagementState: lokiv1.ManagementStateUnmanaged, | ||
| }, | ||
| } | ||
|
|
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| k.GetStub = func(_ context.Context, key types.NamespacedName, out client.Object, _ ...client.GetOption) error { | ||
| if key.Name == s.Name && key.Namespace == s.Namespace { | ||
| k.SetClientObject(out, &s) | ||
| return nil | ||
| } | ||
| return apierrors.NewNotFound(schema.GroupResource{}, "something not found") | ||
| } | ||
|
|
||
| res, err := c.Reconcile(context.Background(), r) | ||
| require.NoError(t, err) | ||
| require.Equal(t, ctrl.Result{}, res) | ||
| } |
30 changes: 30 additions & 0 deletions
30
operator/controllers/loki/internal/lokistack/credentialsrequest_discovery.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| package lokistack | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
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| "github.com/ViaQ/logerr/v2/kverrors" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
|
|
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| "github.com/grafana/loki/operator/internal/external/k8s" | ||
| "github.com/grafana/loki/operator/internal/manifests/storage" | ||
| ) | ||
|
|
||
| // AnnotateForCredentialsRequest adds the `loki.grafana.com/credentials-request-secret-ref` annotation | ||
| // to the named Lokistack. If no LokiStack is found, then skip reconciliation. Or else return an error. | ||
| func AnnotateForCredentialsRequest(ctx context.Context, k k8s.Client, key client.ObjectKey, secretRef string) error { | ||
| stack, err := getLokiStack(ctx, k, key) | ||
| if stack == nil || err != nil { | ||
| return err | ||
| } | ||
|
|
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| if val, ok := stack.Annotations[storage.AnnotationCredentialsRequestsSecretRef]; ok && val == secretRef { | ||
| return nil | ||
| } | ||
|
|
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| if err := updateAnnotation(ctx, k, stack, storage.AnnotationCredentialsRequestsSecretRef, secretRef); err != nil { | ||
| return kverrors.Wrap(err, "failed to update lokistack `credentialsRequestSecretRef` annotation", "key", key) | ||
| } | ||
|
|
||
| return nil | ||
| } |
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