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ingress.go
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ingress.go
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package controllers
import (
"context"
"github.com/go-logr/logr"
"github.com/milvus-io/milvus-operator/apis/milvus.io/v1beta1"
"github.com/pkg/errors"
networkingv1 "k8s.io/api/networking/v1"
kerrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
runtime "k8s.io/apimachinery/pkg/runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
)
func (r *MilvusReconciler) ReconcileIngress(ctx context.Context, mc v1beta1.Milvus) error {
ingress := mc.Spec.GetServiceComponent().Ingress
if ingress == nil {
return nil
}
return reconcileIngress(ctx, r.logger, r.Client, r.Scheme, &mc, *ingress)
}
func reconcileIngress(ctx context.Context, logger logr.Logger,
cli client.Client, scheme *runtime.Scheme, crd client.Object, ingress v1beta1.MilvusIngress) error {
new := ingressRenderer.Render(crd, ingress)
if err := SetControllerReference(crd, new, scheme); err != nil {
return errors.Wrap(err, "failed to set controller reference")
}
old := &networkingv1.Ingress{}
key := client.ObjectKeyFromObject(crd)
key.Name = key.Name + "-milvus"
err := cli.Get(ctx, key, old)
if kerrors.IsNotFound(err) {
logger.Info("Create Ingress")
err = cli.Create(ctx, new)
return errors.Wrap(err, "failed to create ingress")
} else if err != nil {
return errors.Wrap(err, "failed to get ingress")
}
if IsEqual(old.Spec, new.Spec) && IsEqual(old.ObjectMeta, new.ObjectMeta) {
return nil
}
// we don't change status & type
new.TypeMeta = old.TypeMeta
// merge metadata
meta := old.ObjectMeta.DeepCopy()
meta.Labels = MergeLabels(old.Labels, new.Labels)
meta.Annotations = MergeLabels(old.Annotations, new.Annotations)
new.ObjectMeta = *meta
new.Status = *old.Status.DeepCopy()
logger.Info("Update Ingress")
err = cli.Update(ctx, new)
return errors.Wrap(err, "failed to update ingress")
}
//go:generate mockgen -package=controllers -source=ingress.go -destination=ingress_mock.go ingressRendererInterface
type ingressRendererInterface interface {
Render(crd client.Object, spec v1beta1.MilvusIngress) *networkingv1.Ingress
}
// ingressRender singleton
var ingressRenderer ingressRendererInterface = new(ingressRendererImpl)
type ingressRendererImpl struct {
}
// Render implements ingressRenderInterface
func (r *ingressRendererImpl) Render(crd client.Object, spec v1beta1.MilvusIngress) *networkingv1.Ingress {
ingress := &networkingv1.Ingress{
ObjectMeta: metav1.ObjectMeta{
Name: crd.GetName() + "-milvus",
Namespace: crd.GetNamespace(),
// TODO: we need provide merge common labels of milvus
Labels: spec.Labels,
Annotations: spec.Annotations,
},
}
ingress.Spec.IngressClassName = spec.IngressClassName
for secret, hosts := range spec.TLSSecretRefs {
ingress.Spec.TLS = append(ingress.Spec.TLS, networkingv1.IngressTLS{
Hosts: hosts,
SecretName: secret,
})
}
pathType := networkingv1.PathTypePrefix
for _, host := range spec.Hosts {
ingress.Spec.Rules = append(ingress.Spec.Rules, networkingv1.IngressRule{
Host: host,
IngressRuleValue: networkingv1.IngressRuleValue{
HTTP: &networkingv1.HTTPIngressRuleValue{
Paths: []networkingv1.HTTPIngressPath{
{
Path: "/",
PathType: &pathType,
Backend: networkingv1.IngressBackend{
Service: &networkingv1.IngressServiceBackend{
Name: GetServiceInstanceName(crd.GetName()),
Port: networkingv1.ServiceBackendPort{
Number: MilvusPort,
},
},
},
},
},
},
},
})
}
return ingress
}