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service.go
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service.go
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package kubernetes
import (
"fmt"
"strconv"
"github.com/zalando/skipper/dataclients/kubernetes/definitions"
)
type servicePort struct {
Name string `json:"name"`
Port int `json:"port"`
TargetPort *definitions.BackendPort `json:"targetPort"` // string or int
}
func (sp *servicePort) matchingPort(svcPort definitions.BackendPort) bool {
s := svcPort.String()
spt := strconv.Itoa(sp.Port)
return s != "" && (spt == s || sp.Name == s)
}
func (sp *servicePort) matchingPortV1(svcPort definitions.BackendPortV1) bool {
s := svcPort.String()
spt := strconv.Itoa(sp.Port)
return s != "" && (spt == s || sp.Name == s)
}
func (sp *servicePort) String() string {
return fmt.Sprintf("%s %d %s", sp.Name, sp.Port, sp.TargetPort)
}
type serviceSpec struct {
Type string `json:"type"`
ClusterIP string `json:"clusterIP"`
ExternalName string `json:"externalName"`
Ports []*servicePort `json:"ports"`
}
type service struct {
Meta *definitions.Metadata `json:"Metadata"`
Spec *serviceSpec `json:"spec"`
}
type serviceList struct {
Items []*service `json:"items"`
}
func (s *service) getServicePortV1(port definitions.BackendPortV1) (*servicePort, error) {
for _, sp := range s.Spec.Ports {
if sp.matchingPortV1(port) && sp.TargetPort != nil {
return sp, nil
}
}
return nil, fmt.Errorf("getServicePortV1: service port not found %v given %v", s.Spec.Ports, port)
}
func (s *service) getTargetPortByValue(p int) (*definitions.BackendPort, bool) {
for _, pi := range s.Spec.Ports {
if pi.Port == p {
return pi.TargetPort, true
}
}
return nil, false
}