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Initial support for Kubernetes ExternalName service type

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This commit is contained in:
Regner Blok-Andersen 2017-02-09 17:25:38 -08:00
parent 01e3d7952a
commit 0947aa901e
2 changed files with 80 additions and 19 deletions
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48
provider/kubernetes.go
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@ -193,28 +193,38 @@ func (provider *Kubernetes) loadIngresses(k8sClient k8s.Client) (*types.Configur
if port.Port == 443 {
protocol = "https"
}
endpoints, exists, err := k8sClient.GetEndpoints(service.ObjectMeta.Namespace, service.ObjectMeta.Name)
if err != nil || !exists {
log.Errorf("Error retrieving endpoints %s/%s: %v", service.ObjectMeta.Namespace, service.ObjectMeta.Name, 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(int(port.Port)),
if service.Spec.Type == "ExternalName" {
url := protocol + "://" + service.Spec.ExternalName
name := url
templateObjects.Backends[r.Host+pa.Path].Servers[name] = 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))
name := url
if address.TargetRef != nil && address.TargetRef.Name != "" {
name = address.TargetRef.Name
}
templateObjects.Backends[r.Host+pa.Path].Servers[name] = types.Server{
URL: url,
Weight: 1,
endpoints, exists, err := k8sClient.GetEndpoints(service.ObjectMeta.Namespace, service.ObjectMeta.Name)
if err != nil || !exists {
log.Errorf("Error retrieving endpoints %s/%s: %v", service.ObjectMeta.Namespace, service.ObjectMeta.Name, 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(int(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))
name := url
if address.TargetRef != nil && address.TargetRef.Name != "" {
name = address.TargetRef.Name
}
templateObjects.Backends[r.Host+pa.Path].Servers[name] = types.Server{
URL: url,
Weight: 1,
}
}
}
}