27283699987

Committed 10 Jun 2026 02:32PM UTC coverage: 74.207% (+0.2%) from 74.029%

Build # 27283699987

Build Type

Pull #584

github

Committed by

web-flow

Commit Message

Merge d2ba32b2d into 0ca8f933c

Pull Request Pull Request #584: feat: improve resource polling and backoff

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39 of 44 new or added lines in 2 files covered. (88.64%)

12 existing lines in 2 files now uncovered.

2667 of 3594 relevant lines covered (74.21%)

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Source File
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72.17

/pkg/controller/target_controller.go

// Copyright 2026 BWI GmbH and Solution Arsenal contributors
// SPDX-License-Identifier: Apache-2.0

package controller

import (
        "context"
        "errors"
        "fmt"
        "net/url"
        "slices"
        "sort"
        "strings"
        "time"

        ociname "github.com/google/go-containerregistry/pkg/name"
        corev1 "k8s.io/api/core/v1"
        apiequality "k8s.io/apimachinery/pkg/api/equality"
        apierrors "k8s.io/apimachinery/pkg/api/errors"
        apimeta "k8s.io/apimachinery/pkg/api/meta"
        metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
        "k8s.io/apimachinery/pkg/labels"
        "k8s.io/apimachinery/pkg/runtime"
        "k8s.io/apimachinery/pkg/types"
        "k8s.io/client-go/tools/events"
        ctrl "sigs.k8s.io/controller-runtime"
        "sigs.k8s.io/controller-runtime/pkg/builder"
        "sigs.k8s.io/controller-runtime/pkg/client"
        "sigs.k8s.io/controller-runtime/pkg/handler"
        "sigs.k8s.io/controller-runtime/pkg/reconcile"

        solarv1alpha1 "go.opendefense.cloud/solar/api/solar/v1alpha1"
)

const (
        targetFinalizer = "solar.opendefense.cloud/target-finalizer"

        ConditionTypeRegistryResolved = "RegistryResolved"
        ConditionTypeReleasesResolved = "ReleasesResolved"
        ConditionTypeReleasesRendered = "ReleasesRendered"
        ConditionTypeBootstrapReady   = "BootstrapReady"
)

var ErrReleaseNotRenderedYet = errors.New("release is not rendered yet")

type releaseInfo struct {
        // bindingKey is "<namespace>/<name>" of the originating ReleaseBinding, used as a
        // deterministic tiebreaker when two releases share the same priority.
        bindingKey string
        name       string
        release    *solarv1alpha1.Release
        cv         *solarv1alpha1.ComponentVersion
        rtName     string
        chartURL   string
}

type TargetReconciler struct {
        client.Client
        Scheme   *runtime.Scheme
        Recorder events.EventRecorder
        // WatchNamespace restricts reconciliation to this namespace.
        // Should be empty in production (watches all namespaces).
        // Intended for use in integration tests only.
        WatchNamespace string
        // RegistryBindingStrict enables strict registry binding mode.
        // When true, rendering fails if a resource's registry host has no
        // matching RegistryBinding. When false (default/relaxed), unmatched
        // hosts are treated as anonymous pull (no secretRef rendered).
        RegistryBindingStrict bool
}

//+kubebuilder:rbac:groups=solar.opendefense.cloud,resources=targets,verbs=get;list;watch;create;update;patch;delete
//+kubebuilder:rbac:groups=solar.opendefense.cloud,resources=targets/status,verbs=get;update;patch
//+kubebuilder:rbac:groups=solar.opendefense.cloud,resources=targets/finalizers,verbs=update
//+kubebuilder:rbac:groups=solar.opendefense.cloud,resources=registries,verbs=get;list;watch
//+kubebuilder:rbac:groups=solar.opendefense.cloud,resources=releasebindings,verbs=get;list;watch
//+kubebuilder:rbac:groups=solar.opendefense.cloud,resources=registrybindings,verbs=get;list;watch
//+kubebuilder:rbac:groups=solar.opendefense.cloud,resources=releases,verbs=get;list;watch
//+kubebuilder:rbac:groups=solar.opendefense.cloud,resources=componentversions,verbs=get;list;watch
//+kubebuilder:rbac:groups=solar.opendefense.cloud,resources=referencegrants,verbs=get;list;watch
//+kubebuilder:rbac:groups=solar.opendefense.cloud,resources=rendertasks,verbs=get;list;watch;create;update;patch;delete
//+kubebuilder:rbac:groups=events.k8s.io,resources=events,verbs=create;patch

// Reconcile collects ReleaseBindings, resolves the render registry, creates per-release
// RenderTasks (with dedup), and creates a per-target bootstrap RenderTask.
func (r *TargetReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
        log := ctrl.LoggerFrom(ctx)

        log.V(1).Info("Target is being reconciled", "req", req)

        if r.WatchNamespace != "" && req.Namespace != r.WatchNamespace {
                return ctrl.Result{}, nil
        }

        // Fetch target
        target := &solarv1alpha1.Target{}
        if err := r.Get(ctx, req.NamespacedName, target); err != nil {
                if apierrors.IsNotFound(err) {
                        return ctrl.Result{}, nil
                }

                return ctrl.Result{}, errLogAndWrap(log, err, "failed to get object")
        }

        // Handle deletion
        if !target.DeletionTimestamp.IsZero() {
                log.V(1).Info("Target is being deleted")
                r.Recorder.Eventf(target, nil, corev1.EventTypeWarning, "Deleting", "Reconcile", "Target is being deleted, cleaning up RenderTasks")

                // Delete owned RenderTasks
                if err := r.deleteOwnedRenderTasks(ctx, target); err != nil {
                        return ctrl.Result{}, errLogAndWrap(log, err, "failed to delete owned RenderTasks")
                }

                // Remove finalizer
                if slices.Contains(target.Finalizers, targetFinalizer) {
                        latest := &solarv1alpha1.Target{}
                        if err := r.Get(ctx, req.NamespacedName, latest); err != nil {
                                return ctrl.Result{}, errLogAndWrap(log, err, "failed to get latest Target for finalizer removal")
                        }

                        original := latest.DeepCopy()
                        latest.Finalizers = slices.DeleteFunc(latest.Finalizers, func(s string) bool {
                                return s == targetFinalizer
                        })
                        if err := r.Patch(ctx, latest, client.MergeFrom(original)); err != nil {
                                return ctrl.Result{}, errLogAndWrap(log, err, "failed to remove finalizer from Target")
                        }
                }

                return ctrl.Result{}, nil
        }

        // Set finalizer if not set
        if !slices.Contains(target.Finalizers, targetFinalizer) {
                latest := &solarv1alpha1.Target{}
                if err := r.Get(ctx, req.NamespacedName, latest); err != nil {
                        return ctrl.Result{}, errLogAndWrap(log, err, "failed to get latest Target for finalizer addition")
                }

                original := latest.DeepCopy()
                latest.Finalizers = append(latest.Finalizers, targetFinalizer)
                if err := r.Patch(ctx, latest, client.MergeFrom(original)); err != nil {
                        return ctrl.Result{}, errLogAndWrap(log, err, "failed to add finalizer to Target")
                }

                return ctrl.Result{}, nil
        }

        // Resolve render registry — supports cross-namespace via ReferenceGrant
        registryNamespace := target.Namespace
        if target.Spec.RenderRegistryNamespace != "" {
                registryNamespace = target.Spec.RenderRegistryNamespace
        }

        // If the registry lives in a different namespace, verify a ReferenceGrant permits it
        // before attempting to fetch the object.
        if registryNamespace != target.Namespace {
                granted, err := r.registryGranted(ctx, registryNamespace, target.Namespace)
                if err != nil {
                        return ctrl.Result{}, errLogAndWrap(log, err, "failed to check ReferenceGrant for Registry")
                }
                if !granted {
                        if condErr := r.setCondition(ctx, target, ConditionTypeRegistryResolved, metav1.ConditionFalse, "NotGranted",
                                "No ReferenceGrant allows access to Registry "+target.Spec.RenderRegistryRef.Name+" in namespace "+registryNamespace); condErr != nil {
                                return ctrl.Result{}, condErr
                        }

                        return ctrl.Result{RequeueAfter: requeueAfterForCondition(
                                apimeta.FindStatusCondition(target.Status.Conditions, ConditionTypeRegistryResolved), time.Now())}, nil
                }
        }

        registry := &solarv1alpha1.Registry{}
        if err := r.Get(ctx, client.ObjectKey{
                Name:      target.Spec.RenderRegistryRef.Name,
                Namespace: registryNamespace,
        }, registry); err != nil {
                if apierrors.IsNotFound(err) {
                        if condErr := r.setCondition(ctx, target, ConditionTypeRegistryResolved, metav1.ConditionFalse, "NotFound",
                                "Registry not found: "+target.Spec.RenderRegistryRef.Name); condErr != nil {
                                return ctrl.Result{}, condErr
                        }

                        return ctrl.Result{RequeueAfter: requeueAfterForCondition(
                                apimeta.FindStatusCondition(target.Status.Conditions, ConditionTypeRegistryResolved), time.Now())}, nil
                }

                return ctrl.Result{}, errLogAndWrap(log, err, "failed to get Registry")
        }

        if registry.Spec.SolarSecretRef == nil {
                if condErr := r.setCondition(ctx, target, ConditionTypeRegistryResolved, metav1.ConditionFalse, "MissingSolarSecretRef",
                        "Registry does not have SolarSecretRef set, required for rendering"); condErr != nil {
                        return ctrl.Result{}, condErr
                }

                return ctrl.Result{}, nil
        }

        if condErr := r.setCondition(ctx, target, ConditionTypeRegistryResolved, metav1.ConditionTrue, "Resolved",
                "Registry resolved: "+registry.Name); condErr != nil {
                return ctrl.Result{}, condErr
        }

        // Build hostname→targetPullSecretName lookup from RegistryBindings for this target.
        pullSecretsByHost, err := r.buildPullSecretsLookup(ctx, target)
        if err != nil {
                if condErr := r.setCondition(ctx, target, ConditionTypeReleasesRendered, metav1.ConditionFalse, "RegistryBindingConflict",
                        err.Error()); condErr != nil {
                        return ctrl.Result{}, condErr
                }

                return ctrl.Result{}, errLogAndWrap(log, err, "failed to build pull secrets lookup from RegistryBindings")
        }

        // Collect ReleaseBindings for this target — same namespace first, then cross-namespace via ReferenceGrants.
        // Filter on targetNamespace="" to exclude cross-namespace bindings (targetNamespace set) that share the
        // target name but point to a target in a different namespace.
        bindingList := &solarv1alpha1.ReleaseBindingList{}
        if err := r.List(ctx, bindingList,
                client.InNamespace(target.Namespace),
                client.MatchingFields{
                        indexReleaseBindingTargetName:      target.Name,
                        indexReleaseBindingTargetNamespace: "",
                },
        ); err != nil {
                return ctrl.Result{}, errLogAndWrap(log, err, "failed to list ReleaseBindings")
        }

        // Collect cross-namespace ReleaseBindings authorized by ReferenceGrants in target's namespace.
        crossNsBindings, crossNsErr := r.collectCrossNamespaceReleaseBindings(ctx, target)
        if crossNsErr != nil {
                return ctrl.Result{}, errLogAndWrap(log, crossNsErr, "failed to collect cross-namespace ReleaseBindings")
        }
        bindingList.Items = append(bindingList.Items, crossNsBindings...)

        // FIXME: collect cross-namespace RegistryBindings here once ADR-010 is finalized and
        // RegistryBinding collection is wired into the rendering pipeline.

        if len(bindingList.Items) == 0 {
                log.V(1).Info("No ReleaseBindings found for target")
                if condErr := r.setCondition(ctx, target, ConditionTypeReleasesRendered, metav1.ConditionFalse, "NoReleaseBindings",
                        "No ReleaseBindings found for this target"); condErr != nil {
                        return ctrl.Result{}, condErr
                }

                if condErr := r.setCondition(ctx, target, ConditionTypeReleasesResolved, metav1.ConditionFalse, "NoReleaseBindings",
                        "No ReleaseBindings found for this target"); condErr != nil {
                        return ctrl.Result{}, condErr
                }

                return ctrl.Result{}, nil
        }

        // For each bound release, ensure a per-release RenderTask exists
        var releases []releaseInfo

        pendingDeps := false

        for _, binding := range bindingList.Items {
                rel := &solarv1alpha1.Release{}
                if err := r.Get(ctx, client.ObjectKey{
                        Name:      binding.Spec.ReleaseRef.Name,
                        Namespace: binding.Namespace,
                }, rel); err != nil {
                        if apierrors.IsNotFound(err) {
                                log.V(1).Info("Release not found", "release", binding.Spec.ReleaseRef.Name)
                                pendingDeps = true

                                continue
                        }

                        return ctrl.Result{}, errLogAndWrap(log, err, "failed to get Release")
                }

                cv := &solarv1alpha1.ComponentVersion{}
                cvNamespace := rel.Namespace
                if rel.Spec.ComponentVersionNamespace != "" {
                        cvNamespace = rel.Spec.ComponentVersionNamespace
                }

                if cvNamespace != rel.Namespace {
                        granted := false
                        grantList := &solarv1alpha1.ReferenceGrantList{}
                        if err := r.List(ctx, grantList, client.InNamespace(cvNamespace)); err != nil {
                                return ctrl.Result{}, errLogAndWrap(log, err, "failed to check ReferenceGrant for cross-namespace ComponentVersion")
                        }
                        for i := range grantList.Items {
                                if grantPermitsComponentVersionAccess(&grantList.Items[i], rel.Namespace) {
                                        granted = true
                                        break
                                }
                        }
                        if !granted {
                                log.V(1).Info("ComponentVersion access not granted", "cv", rel.Spec.ComponentVersionRef.Name, "namespace", cvNamespace)
                                pendingDeps = true

                                continue
                        }
                }

                if err := r.Get(ctx, client.ObjectKey{
                        Name:      rel.Spec.ComponentVersionRef.Name,
                        Namespace: cvNamespace,
                }, cv); err != nil {
                        if apierrors.IsNotFound(err) {
                                log.V(1).Info("ComponentVersion not found", "cv", rel.Spec.ComponentVersionRef.Name)
                                pendingDeps = true

                                continue
                        }

                        return ctrl.Result{}, errLogAndWrap(log, err, "failed to get ComponentVersion")
                }

                rtName := releaseRenderTaskName(rel.Namespace, rel.Name, target.Name, rel.GetGeneration())
                releases = append(releases, releaseInfo{
                        bindingKey: binding.Namespace + "/" + binding.Name,
                        name:       rel.Name,
                        release:    rel,
                        cv:         cv,
                        rtName:     rtName,
                })
        }

        // Resolve conflicts: deduplicate by uniqueName (priority wins) and apply anti-affinity rules.
        var skipped []string
        releases, skipped = resolveReleaseConflicts(releases)
        if condErr := r.setResolvedCondition(ctx, target, skipped); condErr != nil {
                return ctrl.Result{}, condErr
        }

        if len(releases) == 0 && !pendingDeps {
                if condErr := r.setCondition(ctx, target, ConditionTypeReleasesRendered, metav1.ConditionFalse, "AllReleaseBindingsFiltered",
                        "All ReleaseBindings were filtered out by the release resolver (uniqueName conflicts or anti-affinity rules)"); condErr != nil {
                        return ctrl.Result{}, condErr
                }

                return ctrl.Result{}, nil
        }

        // Create per-release RenderTasks (one per target+release pair).
        // The renderer job handles dedup by skipping if the chart already exists in the registry.
        allRendered := true

        for i, ri := range releases {
                rt := &solarv1alpha1.RenderTask{}
                err := r.Get(ctx, client.ObjectKey{Name: ri.rtName, Namespace: target.Namespace}, rt)

                switch {
                case apierrors.IsNotFound(err):
                        spec, specErr := r.computeReleaseRenderTaskSpec(ri.release, ri.cv, registry, target, pullSecretsByHost)
                        if specErr != nil {
                                if condErr := r.setCondition(ctx, target, ConditionTypeReleasesRendered, metav1.ConditionFalse, "MissingRegistryBinding",
                                        specErr.Error()); condErr != nil {
                                        return ctrl.Result{}, condErr
                                }

                                return ctrl.Result{}, errLogAndWrap(log, specErr, "failed to compute release RenderTask spec")
                        }

                        rt = &solarv1alpha1.RenderTask{
                                ObjectMeta: metav1.ObjectMeta{
                                        Name:      ri.rtName,
                                        Namespace: target.Namespace,
                                },
                                Spec: spec,
                        }

                        if err := r.Create(ctx, rt); err != nil {
                                return ctrl.Result{}, errLogAndWrap(log, err, "failed to create release RenderTask")
                        }

                        log.V(1).Info("Created release RenderTask", "release", ri.name, "renderTask", ri.rtName)
                        r.Recorder.Eventf(target, nil, corev1.EventTypeNormal, "Created", "Create",
                                "Created release RenderTask %s for release %s", ri.rtName, ri.name)
                case err != nil:
                        return ctrl.Result{}, errLogAndWrap(log, err, "failed to get release RenderTask")
                default:
                        // RenderTask exists — check for spec drift (e.g. pull secrets
                        // changed after a RegistryBinding was created/updated).
                        desiredSpec, specErr := r.computeReleaseRenderTaskSpec(ri.release, ri.cv, registry, target, pullSecretsByHost)
                        if specErr != nil {
                                if condErr := r.setCondition(ctx, target, ConditionTypeReleasesRendered, metav1.ConditionFalse, "MissingRegistryBinding",
                                        specErr.Error()); condErr != nil {
                                        return ctrl.Result{}, condErr
                                }

                                return ctrl.Result{}, errLogAndWrap(log, specErr, "failed to compute release RenderTask spec for comparison")
                        }

                        if !apiequality.Semantic.DeepEqual(rt.Spec, desiredSpec) {
                                if err := r.Delete(ctx, rt); err != nil {
                                        return ctrl.Result{}, errLogAndWrap(log, err, "failed to delete stale release RenderTask")
                                }

                                rt = &solarv1alpha1.RenderTask{
                                        ObjectMeta: metav1.ObjectMeta{
                                                Name:      ri.rtName,
                                                Namespace: target.Namespace,
                                        },
                                        Spec: desiredSpec,
                                }

                                if err := r.Create(ctx, rt); err != nil {
                                        return ctrl.Result{}, errLogAndWrap(log, err, "failed to recreate release RenderTask")
                                }

                                log.V(1).Info("Recreated release RenderTask (spec drift)", "release", ri.name, "renderTask", ri.rtName)
                                r.Recorder.Eventf(target, nil, corev1.EventTypeNormal, "Updated", "Update",
                                        "Recreated release RenderTask %s for release %s (spec drift)", ri.rtName, ri.name)
                        }
                }

                // Check if release RenderTask is complete
                if apimeta.IsStatusConditionTrue(rt.Status.Conditions, ConditionTypeJobFailed) {
                        if condErr := r.setCondition(ctx, target, ConditionTypeReleasesRendered, metav1.ConditionFalse, "ReleaseFailed",
                                fmt.Sprintf("Release %s rendering failed", ri.name)); condErr != nil {
                                return ctrl.Result{}, condErr
                        }

                        return ctrl.Result{}, nil
                }

                if apimeta.IsStatusConditionTrue(rt.Status.Conditions, ConditionTypeJobSucceeded) && rt.Status.ChartURL != "" {
                        releases[i].chartURL = rt.Status.ChartURL
                } else {
                        allRendered = false
                }
        }

        if pendingDeps {
                if condErr := r.setCondition(ctx, target, ConditionTypeReleasesRendered, metav1.ConditionFalse, "MissingDependencies",
                        "One or more bound Releases or ComponentVersions not found"); condErr != nil {
                        return ctrl.Result{}, condErr
                }

                return ctrl.Result{RequeueAfter: requeueAfterForCondition(
                        apimeta.FindStatusCondition(target.Status.Conditions, ConditionTypeReleasesRendered), time.Now())}, nil
        }

        if !allRendered {
                if condErr := r.setCondition(ctx, target, ConditionTypeReleasesRendered, metav1.ConditionFalse, "Pending",
                        "Waiting for release RenderTasks to complete"); condErr != nil {
                        return ctrl.Result{}, condErr
                }

                return ctrl.Result{RequeueAfter: requeueAfterForCondition(
                        apimeta.FindStatusCondition(target.Status.Conditions, ConditionTypeReleasesRendered), time.Now())}, nil
        }

        if condErr := r.setCondition(ctx, target, ConditionTypeReleasesRendered, metav1.ConditionTrue, "AllRendered",
                "All releases rendered successfully"); condErr != nil {
                return ctrl.Result{}, condErr
        }

        // Determine if a new bootstrap render is needed by checking whether the
        // current bootstrapVersion's RenderTask still matches the desired release set.
        bootstrapVersion := target.Status.BootstrapVersion
        bootstrapRTName := targetRenderTaskName(target.Name, bootstrapVersion)
        bootstrapRT := &solarv1alpha1.RenderTask{}
        err = r.Get(ctx, client.ObjectKey{Name: bootstrapRTName, Namespace: target.Namespace}, bootstrapRT)

        needsNewBootstrap := false

        switch {
        case apierrors.IsNotFound(err):
                // No RenderTask for the current version yet — create one
                needsNewBootstrap = true
        case err != nil:
                return ctrl.Result{}, errLogAndWrap(log, err, "failed to get bootstrap RenderTask")
        default:
                // RenderTask exists — check if the desired bootstrap input changed
                // (release set, resolved refs/tags, or userdata)
                desiredInput, inputErr := buildBootstrapInput(target, releases, registry.Spec.TargetPullSecretName)
                if inputErr != nil {
                        return ctrl.Result{}, errLogAndWrap(log, inputErr, "failed to build desired bootstrap input for comparison")
                }

                existingInput := bootstrapRT.Spec.RendererConfig.BootstrapConfig.Input
                if !apiequality.Semantic.DeepEqual(desiredInput, existingInput) {
                        bootstrapVersion++
                        needsNewBootstrap = true
                }
        }

        if needsNewBootstrap {
                spec, specErr := r.computeBootstrapRenderTaskSpec(target, releases, registry, bootstrapVersion)
                if specErr != nil {
                        return ctrl.Result{}, errLogAndWrap(log, specErr, "failed to compute bootstrap RenderTask spec")
                }

                bootstrapRTName = targetRenderTaskName(target.Name, bootstrapVersion)
                bootstrapRT = &solarv1alpha1.RenderTask{
                        ObjectMeta: metav1.ObjectMeta{
                                Name:      bootstrapRTName,
                                Namespace: target.Namespace,
                        },
                        Spec: spec,
                }

                if err := r.Create(ctx, bootstrapRT); err != nil {
                        if !apierrors.IsAlreadyExists(err) {
                                return ctrl.Result{}, errLogAndWrap(log, err, "failed to create bootstrap RenderTask")
                        }

                        if err := r.Get(ctx, client.ObjectKey{Name: bootstrapRTName, Namespace: target.Namespace}, bootstrapRT); err != nil {
                                return ctrl.Result{}, errLogAndWrap(log, err, "failed to get existing bootstrap RenderTask")
                        }
                } else {
                        log.V(1).Info("Created bootstrap RenderTask", "renderTask", bootstrapRTName, "bootstrapVersion", bootstrapVersion)
                        r.Recorder.Eventf(target, nil, corev1.EventTypeNormal, "Created", "Create",
                                "Created bootstrap RenderTask %s (version %d)", bootstrapRTName, bootstrapVersion)
                }

                // Persist the new bootstrapVersion in status
                if bootstrapVersion != target.Status.BootstrapVersion {
                        target.Status.BootstrapVersion = bootstrapVersion
                        if err := r.Status().Update(ctx, target); err != nil {
                                return ctrl.Result{}, errLogAndWrap(log, err, "failed to update Target bootstrapVersion")
                        }
                }
        }

        // Update target status from bootstrap RenderTask
        if apimeta.IsStatusConditionTrue(bootstrapRT.Status.Conditions, ConditionTypeJobFailed) {
                if condErr := r.setCondition(ctx, target, ConditionTypeBootstrapReady, metav1.ConditionFalse, "Failed",
                        "Bootstrap rendering failed"); condErr != nil {
                        return ctrl.Result{}, condErr
                }

                return ctrl.Result{}, nil
        }

        if apimeta.IsStatusConditionTrue(bootstrapRT.Status.Conditions, ConditionTypeJobSucceeded) {
                if condErr := r.setCondition(ctx, target, ConditionTypeBootstrapReady, metav1.ConditionTrue, "Ready",
                        "Bootstrap rendered successfully: "+bootstrapRT.Status.ChartURL); condErr != nil {
                        return ctrl.Result{}, condErr
                }

                // Clean up stale RenderTasks owned by this target (old versions)
                currentRTNames := map[string]struct{}{bootstrapRTName: {}}
                for _, ri := range releases {
                        currentRTNames[ri.rtName] = struct{}{}
                }
                if err := r.deleteStaleRenderTasks(ctx, target, currentRTNames); err != nil {
                        log.Error(err, "failed to clean up stale RenderTasks")
                }

                return ctrl.Result{}, nil
        }

        // Still running
        return ctrl.Result{}, nil
}

func (r *TargetReconciler) setCondition(ctx context.Context, target *solarv1alpha1.Target, condType string, status metav1.ConditionStatus, reason, message string) error {
        changed := apimeta.SetStatusCondition(&target.Status.Conditions, metav1.Condition{
                Type:               condType,
                Status:             status,
                ObservedGeneration: target.Generation,
                Reason:             reason,
                Message:            message,
        })
        if changed {
                if err := r.Status().Update(ctx, target); err != nil {
                        return fmt.Errorf("failed to update Target status condition %s: %w", condType, err)
                }
        }

        return nil
}

func (r *TargetReconciler) setResolvedCondition(ctx context.Context, target *solarv1alpha1.Target, skipped []string) error {
        if len(skipped) == 0 {
                return r.setCondition(ctx, target, ConditionTypeReleasesResolved, metav1.ConditionTrue, "NoConflicts", "")
        }

        return r.setCondition(ctx, target, ConditionTypeReleasesResolved, metav1.ConditionTrue, "Resolved", strings.Join(skipped, "; "))
}

// resolveReleaseConflicts deduplicates releases by uniqueName (keeping the highest-priority
// binding) and filters releases that violate anti-affinity rules of already-accepted releases.
// Releases without a uniqueName are deduplicated using the parent Component name from the CV.
// It returns the accepted releases and a slice of human-readable filter messages.
func resolveReleaseConflicts(releases []releaseInfo) ([]releaseInfo, []string) {
        if len(releases) == 0 {
                return releases, nil
        }

        // Step A: uniqueName deduplication.
        // When UniqueName is empty, fall back to the parent Component name from the CV.
        namedGroups := map[string][]releaseInfo{}

        for _, ri := range releases {
                uniqueName := ri.release.Spec.UniqueName
                if uniqueName == "" {
                        uniqueName = ri.cv.Spec.ComponentRef.Name
                }

                namedGroups[uniqueName] = append(namedGroups[uniqueName], ri)
        }

        var accepted []releaseInfo

        var skipped []string

        // byPriority sorts releases with highest priority first; bindingKey breaks ties.
        byPriority := func(a, b releaseInfo) bool {
                if a.release.Spec.Priority != b.release.Spec.Priority {
                        return a.release.Spec.Priority > b.release.Spec.Priority
                }

                return a.bindingKey < b.bindingKey
        }

        uniqueNames := make([]string, 0, len(namedGroups))
        for k := range namedGroups {
                uniqueNames = append(uniqueNames, k)
        }

        sort.Strings(uniqueNames)

        for _, uniqueName := range uniqueNames {
                group := namedGroups[uniqueName]
                sort.Slice(group, func(i, j int) bool { return byPriority(group[i], group[j]) })

                accepted = append(accepted, group[0])

                for _, loser := range group[1:] {
                        skipped = append(skipped, fmt.Sprintf(
                                "binding %s filtered: uniqueName %q conflict, lower priority than %s",
                                loser.bindingKey, uniqueName, group[0].bindingKey,
                        ))
                }
        }

        // Step B: anti-affinity evaluation.
        // Walk in deterministic order (priority desc, bindingKey asc); accept each release only
        // if its AntiAffinity selector does not match any already-accepted release's labels.
        sort.Slice(accepted, func(i, j int) bool { return byPriority(accepted[i], accepted[j]) })

        resolved := make([]releaseInfo, 0, len(accepted))

        for _, ri := range accepted {
                // Parse ri's own anti-affinity selector once; bail early on invalid selector.
                var riSelector labels.Selector
                if ri.release.Spec.AntiAffinity != nil {
                        sel, err := metav1.LabelSelectorAsSelector(ri.release.Spec.AntiAffinity)
                        if err != nil {
                                skipped = append(skipped, fmt.Sprintf(
                                        "binding %s filtered: invalid antiAffinity selector: %v",
                                        ri.bindingKey, err,
                                ))

                                continue
                        }

                        riSelector = sel
                }

                // Check both directions: ri's anti-affinity against already-resolved labels,
                // and already-resolved anti-affinities against ri's labels.
                conflict := ""
                for _, other := range resolved {
                        if riSelector != nil && riSelector.Matches(labels.Set(other.release.Labels)) {
                                conflict = other.bindingKey
                                break
                        }

                        if other.release.Spec.AntiAffinity != nil {
                                otherSel, err := metav1.LabelSelectorAsSelector(other.release.Spec.AntiAffinity)
                                if err == nil && otherSel.Matches(labels.Set(ri.release.Labels)) {
                                        conflict = other.bindingKey
                                        break
                                }
                        }
                }

                if conflict != "" {
                        skipped = append(skipped, fmt.Sprintf(
                                "binding %s filtered: anti-affinity conflict with %s",
                                ri.bindingKey, conflict,
                        ))
                } else {
                        resolved = append(resolved, ri)
                }
        }

        return resolved, skipped
}

// deleteStaleRenderTasks removes RenderTasks owned by this target that are no
// longer needed. Any owned RenderTask whose name is not in currentRTNames is
// deleted. This covers both old bootstrap versions and old release generations.
func (r *TargetReconciler) deleteStaleRenderTasks(ctx context.Context, target *solarv1alpha1.Target, currentRTNames map[string]struct{}) error {
        log := ctrl.LoggerFrom(ctx)

        rtList := &solarv1alpha1.RenderTaskList{}
        if err := r.List(ctx, rtList,
                client.InNamespace(target.Namespace),
                client.MatchingFields{indexOwnerKind: "Target"},
        ); err != nil {
                return err
        }

        for i := range rtList.Items {
                rt := &rtList.Items[i]
                if rt.Spec.OwnerName != target.Name || rt.Spec.OwnerNamespace != target.Namespace {
                        continue
                }

                if _, current := currentRTNames[rt.Name]; current {
                        continue
                }

                log.V(1).Info("Deleting stale RenderTask", "renderTask", rt.Name)
                if err := r.Delete(ctx, rt, client.PropagationPolicy(metav1.DeletePropagationBackground)); client.IgnoreNotFound(err) != nil {
                        return err
                }

                r.Recorder.Eventf(target, nil, corev1.EventTypeNormal, "Deleted", "Delete",
                        "Deleted stale RenderTask %s", rt.Name)
        }

        return nil
}

func (r *TargetReconciler) deleteOwnedRenderTasks(ctx context.Context, target *solarv1alpha1.Target) error {
        rtList := &solarv1alpha1.RenderTaskList{}
        if err := r.List(ctx, rtList,
                client.InNamespace(target.Namespace),
                client.MatchingFields{indexOwnerKind: "Target"},
        ); err != nil {
                return err
        }

        for i := range rtList.Items {
                rt := &rtList.Items[i]
                if rt.Spec.OwnerName == target.Name && rt.Spec.OwnerNamespace == target.Namespace {
                        if err := r.Delete(ctx, rt, client.PropagationPolicy(metav1.DeletePropagationBackground)); client.IgnoreNotFound(err) != nil {
                                return err
                        }
                }
        }

        return nil
}

func (r *TargetReconciler) computeReleaseRenderTaskSpec(rel *solarv1alpha1.Release, cv *solarv1alpha1.ComponentVersion, registry *solarv1alpha1.Registry, target *solarv1alpha1.Target, pullSecretsByHost map[string]string) (solarv1alpha1.RenderTaskSpec, error) {
        chartName := fmt.Sprintf("release-%s", rel.Name)
        repo := fmt.Sprintf("%s/%s/%s", target.Namespace, rel.Namespace, chartName)

        var targetNamespace string
        if rel.Spec.TargetNamespace != nil {
                targetNamespace = *rel.Spec.TargetNamespace
        }

        resolvedResources, err := resolveResources(cv.Spec.Resources, pullSecretsByHost, r.RegistryBindingStrict)
        if err != nil {
                return solarv1alpha1.RenderTaskSpec{}, fmt.Errorf("release %s: %w", rel.Name, err)
        }

        // Include a hash of pull-secret names in the tag so that charts whose
        // content differs only in secretRef get unique OCI tags. Without this,
        // the renderer's exists-check skips re-pushing after a spec-drift
        // recreation (e.g. RegistryBinding created after the first render).
        tag := fmt.Sprintf("v0.0.%d-%s", rel.GetGeneration(), pullSecretsTag(resolvedResources))

        return solarv1alpha1.RenderTaskSpec{
                RendererConfig: solarv1alpha1.RendererConfig{
                        Type: solarv1alpha1.RendererConfigTypeRelease,
                        ReleaseConfig: solarv1alpha1.ReleaseConfig{
                                Chart: solarv1alpha1.ChartConfig{
                                        Name:        chartName,
                                        Description: fmt.Sprintf("Release of %s", rel.Spec.ComponentVersionRef.Name),
                                        Version:     tag,
                                        AppVersion:  tag,
                                },
                                Input: solarv1alpha1.ReleaseInput{
                                        Component:  solarv1alpha1.ReleaseComponent{Name: cv.Spec.ComponentRef.Name},
                                        Resources:  resolvedResources,
                                        Entrypoint: cv.Spec.Entrypoint,
                                },
                                Values:          rel.Spec.Values,
                                TargetNamespace: targetNamespace,
                        },
                },
                Repository:     repo,
                Tag:            tag,
                BaseURL:        registry.Spec.Hostname,
                PushSecretRef:  registry.Spec.SolarSecretRef,
                FailedJobTTL:   rel.Spec.FailedJobTTL,
                OwnerName:      target.Name,
                OwnerNamespace: target.Namespace,
                OwnerKind:      "Target",
        }, nil
}

// buildBootstrapInput constructs the desired BootstrapInput from the current
// target and resolved releases. Used for both comparison and spec construction.
func buildBootstrapInput(target *solarv1alpha1.Target, releases []releaseInfo, renderRegistryPullSecret string) (solarv1alpha1.BootstrapInput, error) {
        resolvedReleases := map[string]solarv1alpha1.ResolvedResourceAccess{}

        for _, ri := range releases {
                ref, err := ociname.ParseReference(ri.chartURL)
                if err != nil {
                        return solarv1alpha1.BootstrapInput{}, fmt.Errorf("failed to parse chartURL %s: %w", ri.chartURL, err)
                }

                repo, err := url.JoinPath(ref.Context().RegistryStr(), ref.Context().RepositoryStr())
                if err != nil {
                        return solarv1alpha1.BootstrapInput{}, err
                }

                resolvedReleases[ri.name] = solarv1alpha1.ResolvedResourceAccess{
                        Repository:     strings.TrimPrefix(repo, "oci://"),
                        Tag:            ref.Identifier(),
                        PullSecretName: renderRegistryPullSecret,
                }
        }

        return solarv1alpha1.BootstrapInput{
                Releases: resolvedReleases,
                Userdata: target.Spec.Userdata,
        }, nil
}

func (r *TargetReconciler) computeBootstrapRenderTaskSpec(target *solarv1alpha1.Target, releases []releaseInfo, registry *solarv1alpha1.Registry, bootstrapVersion int64) (solarv1alpha1.RenderTaskSpec, error) {
        input, err := buildBootstrapInput(target, releases, registry.Spec.TargetPullSecretName)
        if err != nil {
                return solarv1alpha1.RenderTaskSpec{}, err
        }

        releaseNames := make([]string, 0, len(releases))
        for _, ri := range releases {
                releaseNames = append(releaseNames, ri.name)
        }

        sort.Strings(releaseNames)

        chartName := fmt.Sprintf("bootstrap-%s", target.Name)
        repo := fmt.Sprintf("%s/%s", target.Namespace, chartName)
        tag := fmt.Sprintf("v0.0.%d", bootstrapVersion)

        return solarv1alpha1.RenderTaskSpec{
                RendererConfig: solarv1alpha1.RendererConfig{
                        Type: solarv1alpha1.RendererConfigTypeBootstrap,
                        BootstrapConfig: solarv1alpha1.BootstrapConfig{
                                Chart: solarv1alpha1.ChartConfig{
                                        Name:        chartName,
                                        Description: fmt.Sprintf("Bootstrap of %v", releaseNames),
                                        Version:     tag,
                                        AppVersion:  tag,
                                },
                                Input: input,
                        },
                },
                Repository:     repo,
                Tag:            tag,
                BaseURL:        registry.Spec.Hostname,
                PushSecretRef:  registry.Spec.SolarSecretRef,
                OwnerName:      target.Name,
                OwnerNamespace: target.Namespace,
                OwnerKind:      "Target",
        }, nil
}

// SetupWithManager sets up the controller with the Manager.
func (r *TargetReconciler) SetupWithManager(mgr ctrl.Manager) error {
        return ctrl.NewControllerManagedBy(mgr).
                For(&solarv1alpha1.Target{}).
                Watches(
                        &solarv1alpha1.ReleaseBinding{},
                        handler.EnqueueRequestsFromMapFunc(r.mapReleaseBindingToTarget),
                ).
                Watches(
                        &solarv1alpha1.RenderTask{},
                        handler.EnqueueRequestsFromMapFunc(mapRenderTaskToOwner("Target")),
                        builder.WithPredicates(renderTaskStatusChangePredicate()),
                ).
                Watches(
                        &solarv1alpha1.Registry{},
                        handler.EnqueueRequestsFromMapFunc(r.mapRegistryToTargets),
                ).
                Watches(
                        &solarv1alpha1.RegistryBinding{},
                        handler.EnqueueRequestsFromMapFunc(r.mapRegistryBindingToTarget),
                ).
                Watches(
                        &solarv1alpha1.ReferenceGrant{},
                        handler.EnqueueRequestsFromMapFunc(r.mapReferenceGrantToTargets),
                ).
                Watches(
                        &solarv1alpha1.Release{},
                        handler.EnqueueRequestsFromMapFunc(r.mapReleaseToTargets),
                ).
                Complete(r)
}

// registryGranted checks whether a ReferenceGrant in registryNamespace permits
// fromNamespace to reference the named registry.
func (r *TargetReconciler) registryGranted(ctx context.Context, registryNamespace, fromNamespace string) (bool, error) {
        grantList := &solarv1alpha1.ReferenceGrantList{}
        if err := r.List(ctx, grantList, client.InNamespace(registryNamespace)); err != nil {
                return false, err
        }
        for i := range grantList.Items {
                grant := &grantList.Items[i]
                if grantPermitsRegistryAccess(grant, fromNamespace) {
                        return true, nil
                }
        }

        return false, nil
}

// grantPermitsRegistryAccess returns true if the ReferenceGrant allows a Target in
// fromNamespace to reference Registry resources in the grant's namespace.
func grantPermitsRegistryAccess(grant *solarv1alpha1.ReferenceGrant, fromNamespace string) bool {
        return grantPermits(grant, solarGroup, "Target", fromNamespace, solarGroup, "Registry")
}

// mapRegistryToTargets maps a Registry event to reconcile requests for all
// Targets that reference it — either in the same namespace or cross-namespace.
func (r *TargetReconciler) mapRegistryToTargets(ctx context.Context, obj client.Object) []reconcile.Request {
        reg, ok := obj.(*solarv1alpha1.Registry)
        if !ok {
                return nil
        }

        // Same-namespace targets
        targetList := &solarv1alpha1.TargetList{}
        if err := r.List(ctx, targetList, client.InNamespace(reg.Namespace)); err != nil {
                ctrl.LoggerFrom(ctx).Error(err, "failed to list Targets for Registry", "registry", reg.Name)

                return nil
        }

        var requests []reconcile.Request
        for _, t := range targetList.Items {
                if t.Spec.RenderRegistryRef.Name == reg.Name &&
                        (t.Spec.RenderRegistryNamespace == "" || t.Spec.RenderRegistryNamespace == reg.Namespace) {
                        requests = append(requests, reconcile.Request{
                                NamespacedName: types.NamespacedName{
                                        Name:      t.Name,
                                        Namespace: t.Namespace,
                                },
                        })
                }
        }

        // Cross-namespace targets: find namespaces that have been granted access to
        // registries in reg.Namespace, then check their targets.
        grantList := &solarv1alpha1.ReferenceGrantList{}
        if err := r.List(ctx, grantList, client.InNamespace(reg.Namespace)); err != nil {
                ctrl.LoggerFrom(ctx).Error(err, "failed to list ReferenceGrants for cross-namespace Registry mapping")
                return requests
        }

        for i := range grantList.Items {
                grant := &grantList.Items[i]
                if !grantsRegistryResource(grant) {
                        continue
                }
                for _, from := range grant.Spec.From {
                        if from.Kind != "Target" || from.Group != solarGroup {
                                continue
                        }
                        crossTargets := &solarv1alpha1.TargetList{}
                        if err := r.List(ctx, crossTargets, client.InNamespace(from.Namespace)); err != nil {
                                ctrl.LoggerFrom(ctx).Error(err, "failed to list cross-namespace Targets", "namespace", from.Namespace)
                                continue
                        }
                        for _, t := range crossTargets.Items {
                                if t.Spec.RenderRegistryRef.Name == reg.Name && t.Spec.RenderRegistryNamespace == reg.Namespace {
                                        requests = append(requests, reconcile.Request{
                                                NamespacedName: types.NamespacedName{
                                                        Name:      t.Name,
                                                        Namespace: t.Namespace,
                                                },
                                        })
                                }
                        }
                }
        }

        return requests
}

// buildPullSecretsLookup lists RegistryBindings for the given target, resolves
// each bound Registry, and returns a map from registry hostname to
// targetPullSecretName. Registries without a targetPullSecretName are included
// with an empty string (anonymous pull).
func (r *TargetReconciler) buildPullSecretsLookup(ctx context.Context, target *solarv1alpha1.Target) (map[string]string, error) {
        rbList := &solarv1alpha1.RegistryBindingList{}
        if err := r.List(ctx, rbList,
                client.InNamespace(target.Namespace),
                client.MatchingFields{indexRegistryBindingTargetName: target.Name},
        ); err != nil {
                return nil, err
        }

        type hostEntry struct {
                pullSecret  string
                bindingName string
        }

        lookup := make(map[string]hostEntry, len(rbList.Items))

        for _, rb := range rbList.Items {
                reg := &solarv1alpha1.Registry{}
                if err := r.Get(ctx, client.ObjectKey{
                        Name:      rb.Spec.RegistryRef.Name,
                        Namespace: rb.Namespace,
                }, reg); err != nil {
                        return nil, fmt.Errorf("failed to get Registry %s referenced by RegistryBinding %s: %w",
                                rb.Spec.RegistryRef.Name, rb.Name, err)
                }

                host := strings.ToLower(reg.Spec.Hostname)
                if prev, ok := lookup[host]; ok && prev.pullSecret != reg.Spec.TargetPullSecretName {
                        return nil, fmt.Errorf("conflicting RegistryBindings for host %q: RegistryBinding %s (pull secret %q) vs RegistryBinding %s (pull secret %q)",
                                host, prev.bindingName, prev.pullSecret, rb.Name, reg.Spec.TargetPullSecretName)
                }

                lookup[host] = hostEntry{pullSecret: reg.Spec.TargetPullSecretName, bindingName: rb.Name}
        }

        result := make(map[string]string, len(lookup))
        for host, entry := range lookup {
                result[host] = entry.pullSecret
        }

        return result, nil
}

// mapRegistryBindingToTarget maps a RegistryBinding event to a reconcile request
// for the referenced Target.
func (r *TargetReconciler) mapRegistryBindingToTarget(ctx context.Context, obj client.Object) []reconcile.Request {
        rb, ok := obj.(*solarv1alpha1.RegistryBinding)
        if !ok {
                return nil
        }

        if rb.Spec.TargetRef.Name == "" {
                return nil
        }

        return []reconcile.Request{
                {
                        NamespacedName: types.NamespacedName{
                                Name:      rb.Spec.TargetRef.Name,
                                Namespace: rb.Namespace,
                        },
                },
        }
}

// mapReferenceGrantToTargets enqueues Targets affected by a ReferenceGrant change
// either because the grant controls Registry access (Target → Registry) or because
// it controls ComponentVersion access (Release → ComponentVersion).
func (r *TargetReconciler) mapReferenceGrantToTargets(ctx context.Context, obj client.Object) []reconcile.Request {
        grant, ok := obj.(*solarv1alpha1.ReferenceGrant)
        if !ok {
                return nil
        }

        var requests []reconcile.Request

        if grantsRegistryResource(grant) {
                for _, from := range grant.Spec.From {
                        if from.Kind != "Target" || from.Group != solarGroup {
                                continue
                        }
                        targets := &solarv1alpha1.TargetList{}
                        if err := r.List(ctx, targets, client.InNamespace(from.Namespace)); err != nil {
                                ctrl.LoggerFrom(ctx).Error(err, "failed to list Targets for ReferenceGrant mapping", "namespace", from.Namespace)
                                continue
                        }
                        for _, t := range targets.Items {
                                // Enqueue targets that reference a registry specifically in the grant's namespace
                                if t.Spec.RenderRegistryNamespace == grant.Namespace {
                                        requests = append(requests, reconcile.Request{
                                                NamespacedName: types.NamespacedName{
                                                        Name:      t.Name,
                                                        Namespace: t.Namespace,
                                                },
                                        })
                                }
                        }
                }
        }

        if grantsComponentVersionResource(grant) {
                seen := map[string]struct{}{}
                for _, from := range grant.Spec.From {
                        if from.Kind != "Release" || from.Group != solarGroup {
                                continue
                        }
                        bindings := &solarv1alpha1.ReleaseBindingList{}
                        if err := r.List(ctx, bindings, client.InNamespace(from.Namespace)); err != nil {
                                ctrl.LoggerFrom(ctx).Error(err, "failed to list ReleaseBindings for ComponentVersion grant mapping", "namespace", from.Namespace)
                                continue
                        }
                        for _, rb := range bindings.Items {
                                if rb.Spec.TargetRef.Name == "" {
                                        continue
                                }
                                targetNs := rb.Namespace
                                if rb.Spec.TargetNamespace != "" {
                                        targetNs = rb.Spec.TargetNamespace
                                }
                                key := targetNs + "/" + rb.Spec.TargetRef.Name
                                if _, ok := seen[key]; ok {
                                        continue
                                }
                                seen[key] = struct{}{}
                                requests = append(requests, reconcile.Request{
                                        NamespacedName: types.NamespacedName{
                                                Name:      rb.Spec.TargetRef.Name,
                                                Namespace: targetNs,
                                        },
                                })
                        }
                }
        }

        if grantsReleaseBindingToTargetResource(grant) {
                // The grant lives in the Target's namespace and authorizes ReleaseBindings from
                // other namespaces. Enqueue all Targets in the grant's namespace so they pick up
                // the new or removed cross-namespace ReleaseBindings.
                targets := &solarv1alpha1.TargetList{}
                if err := r.List(ctx, targets, client.InNamespace(grant.Namespace)); err != nil {
                        ctrl.LoggerFrom(ctx).Error(err, "failed to list Targets for ReleaseBinding grant mapping", "namespace", grant.Namespace)
                } else {
                        for _, t := range targets.Items {
                                requests = append(requests, reconcile.Request{
                                        NamespacedName: types.NamespacedName{
                                                Name:      t.Name,
                                                Namespace: t.Namespace,
                                        },
                                })
                        }
                }
        }

        return requests
}

// grantsRegistryResource returns true if the ReferenceGrant includes Registry in its To list.
func grantsRegistryResource(grant *solarv1alpha1.ReferenceGrant) bool {
        for _, t := range grant.Spec.To {
                if t.Kind == "Registry" && t.Group == solarGroup {
                        return true
                }
        }

        return false
}

// grantsReleaseBindingToTargetResource returns true if the ReferenceGrant authorizes
// ReleaseBindings in another namespace to reference Targets in the grant's namespace.
func grantsReleaseBindingToTargetResource(grant *solarv1alpha1.ReferenceGrant) bool {
        hasReleaseBindingFrom := false
        for _, f := range grant.Spec.From {
                if f.Kind == "ReleaseBinding" && f.Group == solarGroup {
                        hasReleaseBindingFrom = true
                        break
                }
        }
        if !hasReleaseBindingFrom {
                return false
        }
        for _, t := range grant.Spec.To {
                if t.Kind == "Target" && t.Group == solarGroup {
                        return true
                }
        }

        return false
}

// collectCrossNamespaceReleaseBindings returns ReleaseBindings from other namespaces
// that reference target via spec.targetRef.name + spec.targetNamespace, authorized by
// a ReferenceGrant in target's namespace.
func (r *TargetReconciler) collectCrossNamespaceReleaseBindings(ctx context.Context, target *solarv1alpha1.Target) ([]solarv1alpha1.ReleaseBinding, error) {
        grantList := &solarv1alpha1.ReferenceGrantList{}
        if err := r.List(ctx, grantList, client.InNamespace(target.Namespace)); err != nil {
                return nil, err
        }

        seen := make(map[string]struct{})
        var result []solarv1alpha1.ReleaseBinding
        for i := range grantList.Items {
                grant := &grantList.Items[i]
                if !grantsReleaseBindingToTargetResource(grant) {
                        continue
                }
                for _, from := range grant.Spec.From {
                        if from.Kind != "ReleaseBinding" || from.Group != solarGroup {
                                continue
                        }
                        crossBindings := &solarv1alpha1.ReleaseBindingList{}
                        if err := r.List(ctx, crossBindings,
                                client.InNamespace(from.Namespace),
                                client.MatchingFields{indexReleaseBindingTargetName: target.Name},
                        ); err != nil {
                                return nil, err
                        }
                        for _, rb := range crossBindings.Items {
                                if rb.Spec.TargetNamespace != target.Namespace {
                                        continue
                                }
                                key := rb.Namespace + "/" + rb.Name
                                if _, exists := seen[key]; exists {
                                        continue
                                }
                                seen[key] = struct{}{}
                                result = append(result, rb)
                        }
                }
        }

        return result, nil
}

// mapReleaseToTargets maps a Release event to reconcile requests for all
// Targets that are bound to the release via ReleaseBindings.
func (r *TargetReconciler) mapReleaseToTargets(ctx context.Context, obj client.Object) []reconcile.Request {
        rel, ok := obj.(*solarv1alpha1.Release)
        if !ok {
                return nil
        }

        bindingList := &solarv1alpha1.ReleaseBindingList{}
        if err := r.List(ctx, bindingList,
                client.InNamespace(rel.Namespace),
                client.MatchingFields{indexReleaseBindingReleaseName: rel.Name},
        ); err != nil {
                ctrl.LoggerFrom(ctx).Error(err, "failed to list ReleaseBindings for Release", "release", rel.Name)

                return nil
        }

        seen := map[string]struct{}{}
        var requests []reconcile.Request

        for _, rb := range bindingList.Items {
                targetNs := rb.Namespace
                if rb.Spec.TargetNamespace != "" {
                        targetNs = rb.Spec.TargetNamespace
                }

                key := targetNs + "/" + rb.Spec.TargetRef.Name
                if _, ok := seen[key]; ok {
                        continue
                }

                seen[key] = struct{}{}
                requests = append(requests, reconcile.Request{
                        NamespacedName: types.NamespacedName{
                                Name:      rb.Spec.TargetRef.Name,
                                Namespace: targetNs,
                        },
                })
        }

        return requests
}

func (r *TargetReconciler) mapReleaseBindingToTarget(_ context.Context, obj client.Object) []reconcile.Request {
        rb, ok := obj.(*solarv1alpha1.ReleaseBinding)
        if !ok || rb.Spec.TargetRef.Name == "" {
                return nil
        }

        targetNs := rb.Namespace
        if rb.Spec.TargetNamespace != "" {
                targetNs = rb.Spec.TargetNamespace
        }

        return []reconcile.Request{
                {
                        NamespacedName: types.NamespacedName{
                                Name:      rb.Spec.TargetRef.Name,
                                Namespace: targetNs,
                        },
                },
        }
}

opendefensecloud / solution-arsenal / 27283699987

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