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Simplify Service Lookup

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Since we already know the name and namespace
of the service(s) we want we can just get the
correct one back from the API without filtering
the results.
This commit is contained in:
Ed Robinson 2016-05-26 00:53:51 +01:00
parent e948a013cd
commit 6accb90c47
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GPG key ID: EC501FCA6421CCF0
3 changed files with 41 additions and 54 deletions
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59
provider/kubernetes.go
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@ -190,49 +190,42 @@ func (provider *Kubernetes) loadIngresses(k8sClient k8s.Client) (*types.Configur
Rule: ruleType + ":" + pa.Path,
}
}
services, err := k8sClient.GetServices(func(service k8s.Service) bool {
return service.ObjectMeta.Namespace == i.ObjectMeta.Namespace && service.Name == pa.Backend.ServiceName
})
service, err := k8sClient.GetService(pa.Backend.ServiceName, i.ObjectMeta.Namespace)
if err != nil {
log.Warnf("Error retrieving services: %v", err)
continue
}
if len(services) == 0 {
// no backends found, delete frontend...
delete(templateObjects.Frontends, r.Host+pa.Path)
log.Warnf("Error retrieving services %s", pa.Backend.ServiceName)
continue
}
for _, service := range services {
protocol := "http"
for _, port := range service.Spec.Ports {
if equalPorts(port, pa.Backend.ServicePort) {
if port.Port == 443 {
protocol = "https"
protocol := "http"
for _, port := range service.Spec.Ports {
if equalPorts(port, pa.Backend.ServicePort) {
if port.Port == 443 {
protocol = "https"
}
endpoints, err := k8sClient.GetEndpoints(service.ObjectMeta.Name, service.ObjectMeta.Namespace)
if err != nil {
log.Errorf("Error retrieving endpoints: %v", err)
continue
}
if len(endpoints.Subsets) == 0 {
log.Warnf("Endpoints not found for %s/%s, falling back to Service ClusterIP", service.ObjectMeta.Namespace, service.ObjectMeta.Name)
templateObjects.Backends[r.Host+pa.Path].Servers[string(service.UID)] = types.Server{
URL: protocol + "://" + service.Spec.ClusterIP + ":" + strconv.Itoa(port.Port),
Weight: 1,
}
endpoints, err := k8sClient.GetEndpoints(service.ObjectMeta.Name, service.ObjectMeta.Namespace)
if err != nil {
log.Errorf("Error retrieving endpoints: %v", err)
continue
}
if len(endpoints.Subsets) == 0 {
log.Warnf("Endpoints not found for %s/%s, falling back to Service ClusterIP", service.ObjectMeta.Namespace, service.ObjectMeta.Name)
templateObjects.Backends[r.Host+pa.Path].Servers[string(service.UID)] = types.Server{
URL: protocol + "://" + service.Spec.ClusterIP + ":" + strconv.Itoa(port.Port),
Weight: 1,
}
} else {
for _, subset := range endpoints.Subsets {
for _, address := range subset.Addresses {
url := protocol + "://" + address.IP + ":" + strconv.Itoa(endpointPortNumber(port, subset.Ports))
templateObjects.Backends[r.Host+pa.Path].Servers[url] = types.Server{
URL: url,
Weight: 1,
}
} else {
for _, subset := range endpoints.Subsets {
for _, address := range subset.Addresses {
url := protocol + "://" + address.IP + ":" + strconv.Itoa(endpointPortNumber(port, subset.Ports))
templateObjects.Backends[r.Host+pa.Path].Servers[url] = types.Server{
URL: url,
Weight: 1,
}
}
}
break
}
break
}
}
}