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Implement OpenShift Route creation for InferenceGraphs
InferenceGraphs doesn't have any ingress reconciler. Despite that, in ODH we need a mechanism to expose InferenceGraphs. This implements exposing InferenceGraphs on OpenShift using Routes. Signed-off-by: Edgar Hernández <[email protected]>
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86 changes: 86 additions & 0 deletions
86
pkg/controller/v1alpha1/inferencegraph/openshift_route_reconciler.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| package inferencegraph | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "reflect" | ||
|
|
||
| v1 "github.com/openshift/api/route/v1" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/apimachinery/pkg/runtime" | ||
| "k8s.io/apimachinery/pkg/types" | ||
| "k8s.io/apimachinery/pkg/util/intstr" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| "sigs.k8s.io/controller-runtime/pkg/controller/controllerutil" | ||
| ctrlLog "sigs.k8s.io/controller-runtime/pkg/log" | ||
|
|
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| "github.com/kserve/kserve/pkg/apis/serving/v1alpha1" | ||
| ) | ||
|
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| type OpenShiftRouteReconciler struct { | ||
| Scheme *runtime.Scheme | ||
| Client client.Client | ||
| } | ||
|
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| func (r *OpenShiftRouteReconciler) Reconcile(ctx context.Context, inferenceGraph *v1alpha1.InferenceGraph) (string, error) { | ||
| logger := ctrlLog.FromContext(ctx, "subreconciler", "OpenShiftRoute") | ||
|
|
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| desiredRoute, err := r.buildOpenShiftRoute(inferenceGraph) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
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| nsName := types.NamespacedName{ | ||
| Namespace: desiredRoute.Namespace, | ||
| Name: desiredRoute.Name, | ||
| } | ||
|
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| actualRoute := v1.Route{} | ||
| err = client.IgnoreNotFound(r.Client.Get(ctx, nsName, &actualRoute)) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
|
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| if len(actualRoute.Name) == 0 { | ||
| logger.Info("Creating a new OpenShift Route for InferenceGraph", "namespace", desiredRoute.Namespace, "name", desiredRoute.Name) | ||
| err = r.Client.Create(ctx, &desiredRoute) | ||
| return getRouteHostname(&desiredRoute), err | ||
| } | ||
|
|
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| if !reflect.DeepEqual(actualRoute.Spec, desiredRoute.Spec) { | ||
| logger.Info("Updating OpenShift Route for InferenceGraph", "namespace", desiredRoute.Namespace, "name", desiredRoute.Name) | ||
| actualRoute.Spec = desiredRoute.Spec | ||
| err = r.Client.Update(ctx, &actualRoute) | ||
| } | ||
|
|
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| return getRouteHostname(&actualRoute), err | ||
| } | ||
|
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| func (r *OpenShiftRouteReconciler) buildOpenShiftRoute(inferenceGraph *v1alpha1.InferenceGraph) (v1.Route, error) { | ||
| route := v1.Route{ | ||
| TypeMeta: metav1.TypeMeta{}, | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: fmt.Sprintf("%s-route", inferenceGraph.Name), | ||
| Namespace: inferenceGraph.Namespace, | ||
| }, | ||
| Spec: v1.RouteSpec{ | ||
| To: v1.RouteTargetReference{ | ||
| Kind: "Service", | ||
| Name: inferenceGraph.GetName(), | ||
| }, | ||
| Port: &v1.RoutePort{ | ||
| TargetPort: intstr.FromString(inferenceGraph.GetName()), | ||
| }, | ||
| }, | ||
| } | ||
|
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| err := controllerutil.SetControllerReference(inferenceGraph, &route, r.Scheme) | ||
| return route, err | ||
| } | ||
|
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| func getRouteHostname(route *v1.Route) string { | ||
| for _, entry := range route.Status.Ingress { | ||
| return entry.Host | ||
| } | ||
| return "" | ||
| } |
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