github.com/1aal/kubeblocks@v0.0.0-20231107070852-e1c03e598921/pkg/controller/builder/builder_service.go (about)

     1  /*
     2  Copyright (C) 2022-2023 ApeCloud Co., Ltd
     3  
     4  This file is part of KubeBlocks project
     5  
     6  This program is free software: you can redistribute it and/or modify
     7  it under the terms of the GNU Affero General Public License as published by
     8  the Free Software Foundation, either version 3 of the License, or
     9  (at your option) any later version.
    10  
    11  This program is distributed in the hope that it will be useful
    12  but WITHOUT ANY WARRANTY; without even the implied warranty of
    13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    14  GNU Affero General Public License for more details.
    15  
    16  You should have received a copy of the GNU Affero General Public License
    17  along with this program.  If not, see <http://www.gnu.org/licenses/>.
    18  */
    19  
    20  package builder
    21  
    22  import (
    23  	corev1 "k8s.io/api/core/v1"
    24  	"k8s.io/apimachinery/pkg/util/intstr"
    25  )
    26  
    27  type ServiceBuilder struct {
    28  	BaseBuilder[corev1.Service, *corev1.Service, ServiceBuilder]
    29  }
    30  
    31  func NewServiceBuilder(namespace, name string) *ServiceBuilder {
    32  	builder := &ServiceBuilder{}
    33  	builder.init(namespace, name, &corev1.Service{}, builder)
    34  	return builder
    35  }
    36  
    37  func NewHeadlessServiceBuilder(namespace, name string) *ServiceBuilder {
    38  	builder := &ServiceBuilder{}
    39  	builder.init(namespace, name, &corev1.Service{}, builder)
    40  	builder.SetType(corev1.ServiceTypeClusterIP)
    41  	builder.get().Spec.ClusterIP = corev1.ClusterIPNone
    42  	return builder
    43  }
    44  
    45  func (builder *ServiceBuilder) AddSelector(key, value string) *ServiceBuilder {
    46  	keyValues := make(map[string]string, 1)
    47  	keyValues[key] = value
    48  	return builder.AddSelectorsInMap(keyValues)
    49  }
    50  
    51  func (builder *ServiceBuilder) AddSelectors(keyValues ...string) *ServiceBuilder {
    52  	return builder.AddSelectorsInMap(WithMap(keyValues...))
    53  }
    54  
    55  func (builder *ServiceBuilder) AddSelectorsInMap(keyValues map[string]string) *ServiceBuilder {
    56  	selectors := builder.get().Spec.Selector
    57  	if selectors == nil {
    58  		selectors = make(map[string]string, 0)
    59  	}
    60  	for k, v := range keyValues {
    61  		selectors[k] = v
    62  	}
    63  	builder.get().Spec.Selector = selectors
    64  	return builder
    65  }
    66  
    67  func (builder *ServiceBuilder) AddPorts(ports ...corev1.ServicePort) *ServiceBuilder {
    68  	portList := builder.get().Spec.Ports
    69  	if portList == nil {
    70  		portList = make([]corev1.ServicePort, 0)
    71  	}
    72  	portList = append(portList, ports...)
    73  	builder.get().Spec.Ports = portList
    74  	return builder
    75  }
    76  
    77  func (builder *ServiceBuilder) AddContainerPorts(ports ...corev1.ContainerPort) *ServiceBuilder {
    78  	servicePorts := make([]corev1.ServicePort, 0)
    79  	for _, containerPort := range ports {
    80  		servicePort := corev1.ServicePort{
    81  			Name:       containerPort.Name,
    82  			Protocol:   containerPort.Protocol,
    83  			Port:       containerPort.ContainerPort,
    84  			TargetPort: intstr.FromString(containerPort.Name),
    85  		}
    86  		servicePorts = append(servicePorts, servicePort)
    87  	}
    88  	return builder.AddPorts(servicePorts...)
    89  }
    90  
    91  func (builder *ServiceBuilder) SetType(serviceType corev1.ServiceType) *ServiceBuilder {
    92  	if serviceType == "" {
    93  		return builder
    94  	}
    95  	builder.get().Spec.Type = serviceType
    96  	if serviceType == corev1.ServiceTypeLoadBalancer {
    97  		// Set externalTrafficPolicy to Local has two benefits:
    98  		// 1. preserve client IP
    99  		// 2. improve network performance by reducing one hop
   100  		builder.get().Spec.ExternalTrafficPolicy = corev1.ServiceExternalTrafficPolicyTypeLocal
   101  	}
   102  	return builder
   103  }