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middleware/kubernetes: Implement current federation beta (#723)

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* federation initial commit

* UTs/bugfixes

* federation bits

* polish, cover UT gaps

* add TODO

* go fmt & todo note

* remove unrelated change

* pr changes

* start node watcher

* get real node name

* remove unused case
This commit is contained in:
Chris O'Haver
2017-06-14 09:38:00 -04:00
committed by John Belamaric
parent 8e86fa6f23
commit 930c54ef62
9 changed files with 420 additions and 17 deletions
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33
middleware/kubernetes/controller.go
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@@ -39,6 +39,9 @@ type dnsController interface {
ServiceList() []*api.Service
PodIndex(string) []interface{}
EndpointsList() api.EndpointsList
GetNodeByName(string) (api.Node, error)
Run()
Stop() error
}
@@ -48,10 +51,11 @@ type dnsControl struct {
selector *labels.Selector
svcController *cache.Controller
podController *cache.Controller
nsController *cache.Controller
epController *cache.Controller
svcController *cache.Controller
podController *cache.Controller
nsController *cache.Controller
epController *cache.Controller
nodeController *cache.Controller
svcLister cache.StoreToServiceLister
podLister cache.StoreToPodLister
@@ -66,8 +70,12 @@ type dnsControl struct {
stopCh chan struct{}
}
type dnsControlOpts struct {
initPodCache bool
}
// newDNSController creates a controller for CoreDNS.
func newdnsController(kubeClient *kubernetes.Clientset, resyncPeriod time.Duration, lselector *labels.Selector, initPodCache bool) *dnsControl {
func newdnsController(kubeClient *kubernetes.Clientset, resyncPeriod time.Duration, lselector *labels.Selector, opts dnsControlOpts) *dnsControl {
dns := dnsControl{
client: kubeClient,
selector: lselector,
@@ -84,7 +92,7 @@ func newdnsController(kubeClient *kubernetes.Clientset, resyncPeriod time.Durati
cache.ResourceEventHandlerFuncs{},
cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc})
if initPodCache {
if opts.initPodCache {
dns.podLister.Indexer, dns.podController = cache.NewIndexerInformer(
&cache.ListWatch{
ListFunc: podListFunc(dns.client, namespace, dns.selector),
@@ -368,3 +376,16 @@ func (dns *dnsControl) EndpointsList() api.EndpointsList {
return epl
}
func (dns *dnsControl) GetNodeByName(name string) (api.Node, error) {
v1node, err := dns.client.Core().Nodes().Get(name)
if err != nil {
return api.Node{}, err
}
var apinode api.Node
err = v1.Convert_v1_Node_To_api_Node(v1node, &apinode, nil)
if err != nil {
return api.Node{}, err
}
return apinode, nil
}