// NewSourceAPI creates config source that watches for changes to the services and endpoints.
func NewSourceAPI(c cache.Getter, period time.Duration, servicesChan chan<- ServiceUpdate, endpointsChan chan<- EndpointsUpdate) {
servicesLW := cache.NewListWatchFromClient(c, "services", api.NamespaceAll, fields.Everything())
cache.NewReflector(servicesLW, &api.Service{}, NewServiceStore(nil, servicesChan), period).Run()
endpointsLW := cache.NewListWatchFromClient(c, "endpoints", api.NamespaceAll, fields.Everything())
cache.NewReflector(endpointsLW, &api.Endpoints{}, NewEndpointsStore(nil, endpointsChan), period).Run()
}
func (c *FakeEvents) GetFieldSelector(involvedObjectName, involvedObjectNamespace, involvedObjectKind, involvedObjectUID *string) fields.Selector {
action := core.GenericActionImpl{}
action.Verb = "get-field-selector"
action.Resource = eventsResource
c.Fake.Invokes(action, nil)
return fields.Everything()
}
// NewServiceAccountsController returns a new *ServiceAccountsController.
func NewServiceAccountsController(cl clientset.Interface, options ServiceAccountsControllerOptions) *ServiceAccountsController {
e := &ServiceAccountsController{
client: cl,
serviceAccountsToEnsure: options.ServiceAccounts,
}
if cl != nil && cl.Core().GetRESTClient().GetRateLimiter() != nil {
metrics.RegisterMetricAndTrackRateLimiterUsage("serviceaccount_controller", cl.Core().GetRESTClient().GetRateLimiter())
}
accountSelector := fields.Everything()
if len(options.ServiceAccounts) == 1 {
// If we're maintaining a single account, we can scope the accounts we watch to just that name
accountSelector = fields.SelectorFromSet(map[string]string{api.ObjectNameField: options.ServiceAccounts[0].Name})
}
e.serviceAccounts, e.serviceAccountController = framework.NewIndexerInformer(
&cache.ListWatch{
ListFunc: func(options api.ListOptions) (runtime.Object, error) {
options.FieldSelector = accountSelector
return e.client.Core().ServiceAccounts(api.NamespaceAll).List(options)
},
WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
options.FieldSelector = accountSelector
return e.client.Core().ServiceAccounts(api.NamespaceAll).Watch(options)
},
},
&api.ServiceAccount{},
options.ServiceAccountResync,
framework.ResourceEventHandlerFuncs{
DeleteFunc: e.serviceAccountDeleted,
},
cache.Indexers{"namespace": cache.MetaNamespaceIndexFunc},
)
e.namespaces, e.namespaceController = framework.NewIndexerInformer(
&cache.ListWatch{
ListFunc: func(options api.ListOptions) (runtime.Object, error) {
return e.client.Core().Namespaces().List(options)
},
WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
return e.client.Core().Namespaces().Watch(options)
},
},
&api.Namespace{},
options.NamespaceResync,
framework.ResourceEventHandlerFuncs{
AddFunc: e.namespaceAdded,
UpdateFunc: e.namespaceUpdated,
},
cache.Indexers{"name": nameIndexFunc},
)
return e
}
func TestWatchParamParsing(t *testing.T) {
simpleStorage := &SimpleRESTStorage{}
handler := handle(map[string]rest.Storage{
"simples": simpleStorage,
"simpleroots": simpleStorage,
})
server := httptest.NewServer(handler)
defer server.Close()
dest, _ := url.Parse(server.URL)
rootPath := "/" + prefix + "/" + testGroupVersion.Group + "/" + testGroupVersion.Version + "/watch/simples"
namespacedPath := "/" + prefix + "/" + testGroupVersion.Group + "/" + testGroupVersion.Version + "/watch/namespaces/other/simpleroots"
table := []struct {
path string
rawQuery string
resourceVersion string
labelSelector string
fieldSelector string
namespace string
}{
{
path: rootPath,
rawQuery: "resourceVersion=1234",
resourceVersion: "1234",
labelSelector: "",
fieldSelector: "",
namespace: api.NamespaceAll,
}, {
path: rootPath,
rawQuery: "resourceVersion=314159&fieldSelector=Host%3D&labelSelector=name%3Dfoo",
resourceVersion: "314159",
labelSelector: "name=foo",
fieldSelector: "Host=",
namespace: api.NamespaceAll,
}, {
path: rootPath,
rawQuery: "fieldSelector=id%3dfoo&resourceVersion=1492",
resourceVersion: "1492",
labelSelector: "",
fieldSelector: "id=foo",
namespace: api.NamespaceAll,
}, {
path: rootPath,
rawQuery: "",
resourceVersion: "",
labelSelector: "",
fieldSelector: "",
namespace: api.NamespaceAll,
},
{
path: namespacedPath,
rawQuery: "resourceVersion=1234",
resourceVersion: "1234",
labelSelector: "",
fieldSelector: "",
namespace: "other",
}, {
path: namespacedPath,
rawQuery: "resourceVersion=314159&fieldSelector=Host%3D&labelSelector=name%3Dfoo",
resourceVersion: "314159",
labelSelector: "name=foo",
fieldSelector: "Host=",
namespace: "other",
}, {
path: namespacedPath,
rawQuery: "fieldSelector=id%3dfoo&resourceVersion=1492",
resourceVersion: "1492",
labelSelector: "",
fieldSelector: "id=foo",
namespace: "other",
}, {
path: namespacedPath,
rawQuery: "",
resourceVersion: "",
labelSelector: "",
fieldSelector: "",
namespace: "other",
},
}
for _, item := range table {
simpleStorage.requestedLabelSelector = labels.Everything()
simpleStorage.requestedFieldSelector = fields.Everything()
simpleStorage.requestedResourceVersion = "5" // Prove this is set in all cases
simpleStorage.requestedResourceNamespace = ""
dest.Path = item.path
dest.RawQuery = item.rawQuery
resp, err := http.Get(dest.String())
if err != nil {
t.Errorf("%v: unexpected error: %v", item.rawQuery, err)
continue
}
resp.Body.Close()
if e, a := item.namespace, simpleStorage.requestedResourceNamespace; e != a {
t.Errorf("%v: expected %v, got %v", item.rawQuery, e, a)
}
if e, a := item.resourceVersion, simpleStorage.requestedResourceVersion; e != a {
t.Errorf("%v: expected %v, got %v", item.rawQuery, e, a)
}
if e, a := item.labelSelector, simpleStorage.requestedLabelSelector.String(); e != a {
t.Errorf("%v: expected %v, got %v", item.rawQuery, e, a)
}
if e, a := item.fieldSelector, simpleStorage.requestedFieldSelector.String(); e != a {
t.Errorf("%v: expected %v, got %v", item.rawQuery, e, a)
}
}
}
// Run starts a background goroutine that watches for changes to services that
// have (or had) LoadBalancers=true and ensures that they have
// load balancers created and deleted appropriately.
// serviceSyncPeriod controls how often we check the cluster's services to
// ensure that the correct load balancers exist.
// nodeSyncPeriod controls how often we check the cluster's nodes to determine
// if load balancers need to be updated to point to a new set.
//
// It's an error to call Run() more than once for a given ServiceController
// object.
func (s *ServiceController) Run(serviceSyncPeriod, nodeSyncPeriod time.Duration) error {
if err := s.init(); err != nil {
return err
}
// We have to make this check beecause the ListWatch that we use in
// WatchServices requires Client functions that aren't in the interface
// for some reason.
if _, ok := s.kubeClient.(*clientset.Clientset); !ok {
return fmt.Errorf("ServiceController only works with real Client objects, but was passed something else satisfying the clientset.Interface.")
}
// Get the currently existing set of services and then all future creates
// and updates of services.
// A delta compressor is needed for the DeltaFIFO queue because we only ever
// care about the most recent state.
serviceQueue := cache.NewDeltaFIFO(
cache.MetaNamespaceKeyFunc,
cache.DeltaCompressorFunc(func(d cache.Deltas) cache.Deltas {
if len(d) == 0 {
return d
}
return cache.Deltas{*d.Newest()}
}),
s.cache,
)
lw := cache.NewListWatchFromClient(s.kubeClient.(*clientset.Clientset).CoreClient, "services", api.NamespaceAll, fields.Everything())
cache.NewReflector(lw, &api.Service{}, serviceQueue, serviceSyncPeriod).Run()
for i := 0; i < workerGoroutines; i++ {
go s.watchServices(serviceQueue)
}
nodeLW := cache.NewListWatchFromClient(s.kubeClient.(*clientset.Clientset).CoreClient, "nodes", api.NamespaceAll, fields.Everything())
cache.NewReflector(nodeLW, &api.Node{}, s.nodeLister.Store, 0).Run()
go s.nodeSyncLoop(nodeSyncPeriod)
return nil
}
