rebase: update kubernetes to v1.20.0

updated kubernetes packages to latest
release.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
This commit is contained in:
Madhu Rajanna
2020-12-17 17:58:29 +05:30
committed by mergify[bot]
parent 4abe128bd8
commit 83559144b1
1624 changed files with 247222 additions and 160270 deletions

View File

@ -32,7 +32,7 @@ import (
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/apimachinery/pkg/watch"
"k8s.io/client-go/tools/cache"
"k8s.io/klog"
"k8s.io/klog/v2"
)
// resourceVersionGetter is an interface used to get resource version from events.
@ -101,7 +101,8 @@ func (rw *RetryWatcher) send(event watch.Event) bool {
// If it is not done the second return value holds the time to wait before calling it again.
func (rw *RetryWatcher) doReceive() (bool, time.Duration) {
watcher, err := rw.watcherClient.Watch(metav1.ListOptions{
ResourceVersion: rw.lastResourceVersion,
ResourceVersion: rw.lastResourceVersion,
AllowWatchBookmarks: true,
})
// We are very unlikely to hit EOF here since we are just establishing the call,
// but it may happen that the apiserver is just shutting down (e.g. being restarted)
@ -174,10 +175,12 @@ func (rw *RetryWatcher) doReceive() (bool, time.Duration) {
return true, 0
}
// All is fine; send the event and update lastResourceVersion
ok = rw.send(event)
if !ok {
return true, 0
// All is fine; send the non-bookmark events and update resource version.
if event.Type != watch.Bookmark {
ok = rw.send(event)
if !ok {
return true, 0
}
}
rw.lastResourceVersion = resourceVersion

View File

@ -22,13 +22,11 @@ import (
"fmt"
"time"
"k8s.io/apimachinery/pkg/api/meta"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/apimachinery/pkg/watch"
"k8s.io/client-go/tools/cache"
"k8s.io/klog"
"k8s.io/klog/v2"
)
// PreconditionFunc returns true if the condition has been reached, false if it has not been reached yet,
@ -167,70 +165,3 @@ func ContextWithOptionalTimeout(parent context.Context, timeout time.Duration) (
return context.WithTimeout(parent, timeout)
}
// ListWatchUntil first lists objects, converts them into synthetic ADDED events
// and checks conditions for those synthetic events. If the conditions have not been reached so far
// it continues by calling Until which establishes a watch from resourceVersion of the list call
// to evaluate those conditions based on new events.
// ListWatchUntil provides the same guarantees as Until and replaces the old WATCH from RV "" (or "0")
// which was mixing list and watch calls internally and having severe design issues. (see #74022)
// There is no resourceVersion order guarantee for the initial list and those synthetic events.
func ListWatchUntil(ctx context.Context, lw cache.ListerWatcher, conditions ...ConditionFunc) (*watch.Event, error) {
if len(conditions) == 0 {
return nil, nil
}
list, err := lw.List(metav1.ListOptions{})
if err != nil {
return nil, err
}
initialItems, err := meta.ExtractList(list)
if err != nil {
return nil, err
}
// use the initial items as simulated "adds"
var lastEvent *watch.Event
currIndex := 0
passedConditions := 0
for _, condition := range conditions {
// check the next condition against the previous event and short circuit waiting for the next watch
if lastEvent != nil {
done, err := condition(*lastEvent)
if err != nil {
return lastEvent, err
}
if done {
passedConditions = passedConditions + 1
continue
}
}
ConditionSucceeded:
for currIndex < len(initialItems) {
lastEvent = &watch.Event{Type: watch.Added, Object: initialItems[currIndex]}
currIndex++
done, err := condition(*lastEvent)
if err != nil {
return lastEvent, err
}
if done {
passedConditions = passedConditions + 1
break ConditionSucceeded
}
}
}
if passedConditions == len(conditions) {
return lastEvent, nil
}
remainingConditions := conditions[passedConditions:]
metaObj, err := meta.ListAccessor(list)
if err != nil {
return nil, err
}
currResourceVersion := metaObj.GetResourceVersion()
return Until(ctx, currResourceVersion, lw, remainingConditions...)
}