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make it possible to allow discovery errors for controllers

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Kubernetes-commit: b7286f3188e997c98c89e1a8755b58ae69fbd4b0
This commit is contained in:
deads2k 2017-07-24 09:56:31 -04:00 committed by Kubernetes Publisher
parent 54dc2e8920
commit 203206d11a
1 changed files with 5 additions and 14 deletions
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19
discovery/discovery_client.go
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@ -187,7 +187,7 @@ func (d *DiscoveryClient) ServerResourcesForGroupVersion(groupVersion string) (r
}
// serverResources returns the supported resources for all groups and versions.
func (d *DiscoveryClient) serverResources(failEarly bool) ([]*metav1.APIResourceList, error) {
func (d *DiscoveryClient) serverResources() ([]*metav1.APIResourceList, error) {
apiGroups, err := d.ServerGroups()
if err != nil {
return nil, err
@ -203,9 +203,6 @@ func (d *DiscoveryClient) serverResources(failEarly bool) ([]*metav1.APIResource
if err != nil {
// TODO: maybe restrict this to NotFound errors
failedGroups[gv] = err
if failEarly {
return nil, &ErrGroupDiscoveryFailed{Groups: failedGroups}
}
continue
}
@ -249,7 +246,7 @@ func IsGroupDiscoveryFailedError(err error) bool {
}
// serverPreferredResources returns the supported resources with the version preferred by the server.
func (d *DiscoveryClient) serverPreferredResources(failEarly bool) ([]*metav1.APIResourceList, error) {
func (d *DiscoveryClient) serverPreferredResources() ([]*metav1.APIResourceList, error) {
serverGroupList, err := d.ServerGroups()
if err != nil {
return nil, err
@ -269,9 +266,6 @@ func (d *DiscoveryClient) serverPreferredResources(failEarly bool) ([]*metav1.AP
if err != nil {
// TODO: maybe restrict this to NotFound errors
failedGroups[groupVersion] = err
if failEarly {
return nil, &ErrGroupDiscoveryFailed{Groups: failedGroups}
}
continue
}
@ -316,9 +310,7 @@ func (d *DiscoveryClient) serverPreferredResources(failEarly bool) ([]*metav1.AP
// ServerPreferredResources returns the supported resources with the version preferred by the
// server.
func (d *DiscoveryClient) ServerPreferredResources() ([]*metav1.APIResourceList, error) {
return withRetries(defaultRetries, func(retryEarly bool) ([]*metav1.APIResourceList, error) {
return d.serverPreferredResources(retryEarly)
})
return withRetries(defaultRetries, d.serverPreferredResources)
}
// ServerPreferredNamespacedResources returns the supported namespaced resources with the
@ -394,12 +386,11 @@ func (d *DiscoveryClient) OpenAPISchema() (*openapi_v2.Document, error) {
}
// withRetries retries the given recovery function in case the groups supported by the server change after ServerGroup() returns.
func withRetries(maxRetries int, f func(failEarly bool) ([]*metav1.APIResourceList, error)) ([]*metav1.APIResourceList, error) {
func withRetries(maxRetries int, f func() ([]*metav1.APIResourceList, error)) ([]*metav1.APIResourceList, error) {
var result []*metav1.APIResourceList
var err error
for i := 0; i < maxRetries; i++ {
failEarly := i < maxRetries-1
result, err = f(failEarly)
result, err = f()
if err == nil {
return result, nil
}