| /* |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You under the Apache License, Version 2.0 |
| (the "License"); you may not use this file except in compliance with |
| the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| package trait |
| |
| import ( |
| "errors" |
| "fmt" |
| |
| v1 "github.com/apache/camel-k/pkg/apis/camel/v1" |
| |
| "k8s.io/api/extensions/v1beta1" |
| "k8s.io/apimachinery/pkg/util/intstr" |
| |
| corev1 "k8s.io/api/core/v1" |
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" |
| ) |
| |
| // The Ingress trait can be used to expose the service associated with the integration |
| // to the outside world with a Kubernetes Ingress. |
| // |
| // It's enabled by default whenever a Service is added to the integration (through the `service` trait). |
| // |
| // +camel-k:trait=ingress |
| type ingressTrait struct { |
| BaseTrait `property:",squash"` |
| // **Required**. To configure the host exposed by the ingress. |
| Host string `property:"host" json:"host,omitempty"` |
| // To automatically add an ingress whenever the integration uses a HTTP endpoint consumer. |
| Auto *bool `property:"auto" json:"auto,omitempty"` |
| } |
| |
| func newIngressTrait() Trait { |
| return &ingressTrait{ |
| BaseTrait: NewBaseTrait("ingress", 2400), |
| Host: "", |
| } |
| } |
| |
| // IsAllowedInProfile overrides default |
| func (t *ingressTrait) IsAllowedInProfile(profile v1.TraitProfile) bool { |
| return profile == v1.TraitProfileKubernetes |
| } |
| |
| func (t *ingressTrait) Configure(e *Environment) (bool, error) { |
| if t.Enabled != nil && !*t.Enabled { |
| e.Integration.Status.SetCondition( |
| v1.IntegrationConditionExposureAvailable, |
| corev1.ConditionFalse, |
| v1.IntegrationConditionIngressNotAvailableReason, |
| "explicitly disabled", |
| ) |
| return false, nil |
| } |
| |
| if !e.IntegrationInPhase(v1.IntegrationPhaseDeploying, v1.IntegrationPhaseRunning) { |
| return false, nil |
| } |
| |
| if t.Auto == nil || *t.Auto { |
| hasService := e.Resources.GetUserServiceForIntegration(e.Integration) != nil |
| hasHost := t.Host != "" |
| enabled := hasService && hasHost |
| |
| if !enabled { |
| e.Integration.Status.SetCondition( |
| v1.IntegrationConditionExposureAvailable, |
| corev1.ConditionFalse, |
| v1.IntegrationConditionIngressNotAvailableReason, |
| "no host or service defined", |
| ) |
| |
| return false, nil |
| } |
| } |
| |
| if t.Host == "" { |
| e.Integration.Status.SetCondition( |
| v1.IntegrationConditionExposureAvailable, |
| corev1.ConditionFalse, |
| v1.IntegrationConditionIngressNotAvailableReason, |
| "no host defined", |
| ) |
| |
| return false, errors.New("cannot Apply ingress trait: no host defined") |
| } |
| |
| return true, nil |
| } |
| |
| func (t *ingressTrait) Apply(e *Environment) error { |
| service := e.Resources.GetUserServiceForIntegration(e.Integration) |
| if service == nil { |
| return errors.New("cannot Apply ingress trait: no target service") |
| } |
| |
| ingress := v1beta1.Ingress{ |
| TypeMeta: metav1.TypeMeta{ |
| Kind: "Ingress", |
| APIVersion: v1beta1.SchemeGroupVersion.String(), |
| }, |
| ObjectMeta: metav1.ObjectMeta{ |
| Name: service.Name, |
| Namespace: service.Namespace, |
| }, |
| Spec: v1beta1.IngressSpec{ |
| Backend: &v1beta1.IngressBackend{ |
| ServiceName: service.Name, |
| ServicePort: intstr.FromString("http"), |
| }, |
| Rules: []v1beta1.IngressRule{ |
| { |
| Host: t.Host, |
| }, |
| }, |
| }, |
| } |
| |
| e.Resources.Add(&ingress) |
| |
| message := fmt.Sprintf("%s(%s) -> %s(%s)", |
| ingress.Name, |
| t.Host, |
| ingress.Spec.Backend.ServiceName, |
| ingress.Spec.Backend.ServicePort.String()) |
| |
| e.Integration.Status.SetCondition( |
| v1.IntegrationConditionExposureAvailable, |
| corev1.ConditionTrue, |
| v1.IntegrationConditionIngressAvailableReason, |
| message, |
| ) |
| |
| return nil |
| } |