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Add controller to deploy netobserv network policy
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| package networkpolicy | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
|
|
||
| networkingv1 "k8s.io/api/networking/v1" | ||
| ctrl "sigs.k8s.io/controller-runtime" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| "sigs.k8s.io/controller-runtime/pkg/log" | ||
|
|
||
| flowslatest "github.com/netobserv/network-observability-operator/apis/flowcollector/v1beta2" | ||
| "github.com/netobserv/network-observability-operator/controllers/constants" | ||
| "github.com/netobserv/network-observability-operator/controllers/reconcilers" | ||
| "github.com/netobserv/network-observability-operator/pkg/helper" | ||
| "github.com/netobserv/network-observability-operator/pkg/manager" | ||
| "github.com/netobserv/network-observability-operator/pkg/manager/status" | ||
| ) | ||
|
|
||
| type Reconciler struct { | ||
| client.Client | ||
| mgr *manager.Manager | ||
| status status.Instance | ||
| } | ||
|
|
||
| func Start(ctx context.Context, mgr *manager.Manager) error { | ||
| log := log.FromContext(ctx) | ||
| log.Info("Starting Network Policy controller") | ||
| r := Reconciler{ | ||
| Client: mgr.Client, | ||
| mgr: mgr, | ||
| status: mgr.Status.ForComponent(status.NetworkPolicy), | ||
| } | ||
| return ctrl.NewControllerManagedBy(mgr). | ||
| For(&flowslatest.FlowCollector{}, reconcilers.IgnoreStatusChange). | ||
| Named("networkPolicy"). | ||
| Owns(&networkingv1.NetworkPolicy{}). | ||
| Complete(&r) | ||
| } | ||
|
|
||
| // Reconcile is the controller entry point for reconciling current state with desired state. | ||
| // It manages the controller status at a high level. Business logic is delegated into `reconcile`. | ||
| func (r *Reconciler) Reconcile(ctx context.Context, _ ctrl.Request) (ctrl.Result, error) { | ||
| l := log.Log.WithName("networkpolicy") // clear context (too noisy) | ||
| ctx = log.IntoContext(ctx, l) | ||
|
|
||
| // Get flowcollector & create dedicated client | ||
| clh, desired, err := helper.NewFlowCollectorClientHelper(ctx, r.Client) | ||
| if err != nil { | ||
| return ctrl.Result{}, fmt.Errorf("failed to get FlowCollector: %w", err) | ||
| } else if desired == nil { | ||
| // Delete case | ||
| return ctrl.Result{}, nil | ||
| } | ||
|
|
||
| r.status.SetUnknown() | ||
| defer r.status.Commit(ctx, r.Client) | ||
|
|
||
| err = r.reconcile(ctx, clh, desired) | ||
| if err != nil { | ||
| l.Error(err, "Network policy reconcile failure") | ||
| // Set status failure unless it was already set | ||
| if !r.status.HasFailure() { | ||
| r.status.SetFailure("NetworkPolicyError", err.Error()) | ||
| } | ||
| return ctrl.Result{}, err | ||
| } | ||
|
|
||
| r.status.SetReady() | ||
| return ctrl.Result{}, nil | ||
| } | ||
|
|
||
| func (r *Reconciler) reconcile(ctx context.Context, clh *helper.Client, desired *flowslatest.FlowCollector) error { | ||
| // log := log.FromContext(ctx) | ||
| ns := helper.GetNamespace(&desired.Spec) | ||
| privilegedNs := ns + constants.EBPFPrivilegedNSSuffix | ||
| authorizedNs := append([]string{privilegedNs}, desired.Spec.NetworkPolicy.AdditionalNamespaces...) | ||
| if desired.Spec.Loki.Mode == flowslatest.LokiModeLokiStack && desired.Spec.Loki.LokiStack.Namespace != "" { | ||
| authorizedNs = append(authorizedNs, desired.Spec.Loki.LokiStack.Namespace) | ||
| } | ||
| npName, desiredNp := buildNetworkPolicy(ns, desired, authorizedNs) | ||
| if err := reconcilers.ReconcileNetworkPolicy(ctx, clh, npName, desiredNp); err != nil { | ||
| return err | ||
| } | ||
| privilegedNpName, desiredPrivilegedNp := buildNetworkPolicy(privilegedNs, desired, append([]string{ns}, desired.Spec.NetworkPolicy.AdditionalNamespaces...)) | ||
|
|
||
| err := reconcilers.ReconcileNetworkPolicy(ctx, clh, privilegedNpName, desiredPrivilegedNp) | ||
|
|
||
| return err | ||
| } |
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