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| 1 | +package k8sutil |
| 2 | + |
| 3 | +import ( |
| 4 | + networkingv1 "k8s.io/api/networking/v1" |
| 5 | + "k8s.io/apimachinery/pkg/api/errors" |
| 6 | + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" |
| 7 | + "k8s.io/apimachinery/pkg/types" |
| 8 | + |
| 9 | + "github.com/cisco-open/k8s-objectmatcher/patch" |
| 10 | + databasev1alpha1 "github.com/marklogic/marklogic-kubernetes-operator/api/v1alpha1" |
| 11 | + "github.com/marklogic/marklogic-kubernetes-operator/pkg/result" |
| 12 | +) |
| 13 | + |
| 14 | +func generateNetworkPolicyDef(networkPolicyMeta metav1.ObjectMeta, ownerRef metav1.OwnerReference, cr *databasev1alpha1.MarklogicGroup) *networkingv1.NetworkPolicy { |
| 15 | + networkPolicySpec := networkingv1.NetworkPolicySpec{ |
| 16 | + PolicyTypes: cr.Spec.NetworkPolicy.PolicyTypes, |
| 17 | + PodSelector: cr.Spec.NetworkPolicy.PodSelector, |
| 18 | + Ingress: cr.Spec.NetworkPolicy.Ingress, |
| 19 | + Egress: cr.Spec.NetworkPolicy.Egress, |
| 20 | + } |
| 21 | + networkPolicyDef := &networkingv1.NetworkPolicy{ |
| 22 | + TypeMeta: metav1.TypeMeta{ |
| 23 | + Kind: "NetworkPolicy", |
| 24 | + APIVersion: "v1", |
| 25 | + }, |
| 26 | + ObjectMeta: networkPolicyMeta, |
| 27 | + Spec: networkPolicySpec, |
| 28 | + } |
| 29 | + networkPolicyDef.SetOwnerReferences(append(networkPolicyDef.GetOwnerReferences(), ownerRef)) |
| 30 | + return networkPolicyDef |
| 31 | +} |
| 32 | + |
| 33 | +func (oc *OperatorContext) getNetworkPolicy(namespace string, networkPolicyName string) (*networkingv1.NetworkPolicy, error) { |
| 34 | + logger := oc.ReqLogger |
| 35 | + |
| 36 | + var networkPolicy *networkingv1.NetworkPolicy |
| 37 | + networkPolicy = &networkingv1.NetworkPolicy{} |
| 38 | + err := oc.Client.Get(oc.Ctx, types.NamespacedName{Name: networkPolicyName, Namespace: namespace}, networkPolicy) |
| 39 | + if err != nil { |
| 40 | + logger.Info("MarkLogic NetworkPolicy get action failed") |
| 41 | + return nil, err |
| 42 | + } |
| 43 | + logger.Info("MarkLogic NetworkPolicy get action is successful") |
| 44 | + return networkPolicy, nil |
| 45 | +} |
| 46 | + |
| 47 | +func generateNetworkPolicy(networkPolicyName string, cr *databasev1alpha1.MarklogicGroup) *networkingv1.NetworkPolicy { |
| 48 | + labels := getMarkLogicLabels(cr.Spec.Name) |
| 49 | + netObjectMeta := generateObjectMeta(networkPolicyName, cr.Namespace, labels, map[string]string{}) |
| 50 | + networkPolicy := generateNetworkPolicyDef(netObjectMeta, marklogicServerAsOwner(cr), cr) |
| 51 | + return networkPolicy |
| 52 | +} |
| 53 | + |
| 54 | +func (oc *OperatorContext) ReconcileNetworkPolicy() result.ReconcileResult { |
| 55 | + logger := oc.ReqLogger |
| 56 | + logger.Info("NetworkPolicy::Reconciling MarkLogic NetworkPolicy") |
| 57 | + client := oc.Client |
| 58 | + cr := oc.MarklogicGroup |
| 59 | + networkPolicyName := cr.Spec.Name |
| 60 | + currentNetworkPolicy, err := oc.getNetworkPolicy(cr.Namespace, networkPolicyName) |
| 61 | + networkPolicyDef := generateNetworkPolicy(networkPolicyName, cr) |
| 62 | + if err != nil { |
| 63 | + if errors.IsNotFound(err) { |
| 64 | + logger.Info("MarkLogic NetworkPolicy not found, creating a new one") |
| 65 | + err = client.Create(oc.Ctx, networkPolicyDef) |
| 66 | + if err != nil { |
| 67 | + logger.Info("MarkLogic NetworkPolicy creation has failed") |
| 68 | + return result.Error(err) |
| 69 | + } |
| 70 | + logger.Info("MarkLogic NetworkPolicy creation is successful") |
| 71 | + oc.Recorder.Event(oc.MarklogicGroup, "Normal", "NetworkPolicyCreated", "MarkLogic NetworkPolicy creation is successful") |
| 72 | + } else { |
| 73 | + logger.Error(err, "MarkLogic NetworkPolicy creation has failed") |
| 74 | + return result.Error(err) |
| 75 | + } |
| 76 | + } else { |
| 77 | + logger.Info("MarkLogic NetworkPolicy already exists") |
| 78 | + patchDiff, err := patch.DefaultPatchMaker.Calculate(currentNetworkPolicy, networkPolicyDef, |
| 79 | + patch.IgnoreStatusFields(), |
| 80 | + patch.IgnoreVolumeClaimTemplateTypeMetaAndStatus(), |
| 81 | + patch.IgnoreField("kind")) |
| 82 | + if err != nil { |
| 83 | + logger.Error(err, "Error calculating patch") |
| 84 | + return result.Error(err) |
| 85 | + } |
| 86 | + if !patchDiff.IsEmpty() { |
| 87 | + logger.Info("MarkLogic NetworkPolicy spec is different from the input NetworkPolicy spec, updating the NetworkPolicy") |
| 88 | + logger.Info(patchDiff.String()) |
| 89 | + err := oc.Client.Update(oc.Ctx, networkPolicyDef) |
| 90 | + if err != nil { |
| 91 | + logger.Error(err, "Error updating NetworkPolicy") |
| 92 | + return result.Error(err) |
| 93 | + } |
| 94 | + } else { |
| 95 | + logger.Info("MarkLogic NetworkPolicy spec is the same as the input NetworkPolicy spec") |
| 96 | + |
| 97 | + } |
| 98 | + logger.Info("MarkLogic NetworkPolicy is updated") |
| 99 | + } |
| 100 | + return result.Continue() |
| 101 | +} |
| 102 | + |
| 103 | +func (oc *OperatorContext) createNetworkPolicy(namespace string, networkPolicy *networkingv1.NetworkPolicy) error { |
| 104 | + logger := oc.ReqLogger |
| 105 | + client := oc.Client |
| 106 | + err := client.Create(oc.Ctx, networkPolicy) |
| 107 | + if err != nil { |
| 108 | + logger.Error(err, "MarkLogic NetworkPolicy creation has failed") |
| 109 | + return err |
| 110 | + } |
| 111 | + logger.Info("MarkLogic NetworkPolicy creation is successful") |
| 112 | + return nil |
| 113 | +} |
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