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/
service.go
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/
service.go
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/*
* Copyright (c) 2019 WSO2 Inc. (http:www.wso2.org) All Rights Reserved.
*
* WSO2 Inc. 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 resources
import (
"fmt"
"strings"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/intstr"
"github.com/cellery-io/mesh-controller/pkg/apis/mesh/v1alpha2"
"github.com/cellery-io/mesh-controller/pkg/controller"
)
func MakeService(component *v1alpha2.Component) *corev1.Service {
return &corev1.Service{
ObjectMeta: metav1.ObjectMeta{
Name: ServiceName(component),
Namespace: component.Namespace,
Labels: makeLabels(component),
OwnerReferences: []metav1.OwnerReference{
*controller.CreateComponentOwnerRef(component),
},
},
Spec: corev1.ServiceSpec{
Ports: makeServicePorts(component),
Selector: makeLabels(component),
},
}
}
func makeServicePorts(component *v1alpha2.Component) []corev1.ServicePort {
var ports []corev1.ServicePort
for _, p := range component.Spec.Ports {
ports = append(ports, corev1.ServicePort{
Name: fmt.Sprintf("%s-%s", strings.ToLower(string(p.Protocol)), p.Name),
Protocol: corev1.ProtocolTCP,
Port: p.Port,
TargetPort: intstr.IntOrString{Type: intstr.Int, IntVal: p.TargetPort},
})
}
return ports
}
func RequireService(component *v1alpha2.Component) bool {
return len(component.Spec.Ports) > 0 &&
(component.Spec.Type == v1alpha2.ComponentTypeDeployment || component.Spec.Type == v1alpha2.ComponentTypeStatefulSet) &&
!component.Spec.ScalingPolicy.IsKpa()
}
func RequireServiceUpdate(component *v1alpha2.Component, service *corev1.Service) bool {
return component.Generation != component.Status.ObservedGeneration ||
service.Generation != component.Status.ServiceGeneration
}
func CopyService(source, destination *corev1.Service) {
destination.Spec.Ports = source.Spec.Ports
destination.Spec.Selector = source.Spec.Selector
destination.Labels = source.Labels
destination.Annotations = source.Annotations
}
func StatusFromService(component *v1alpha2.Component, service *corev1.Service) {
component.Status.ServiceName = service.Name
component.Status.ServiceGeneration = service.Generation
}