mirror of
https://github.com/ceph/ceph-csi.git
synced 2025-03-09 17:09:29 +00:00
f87d06ed85
Several packages are only used while running the e2e suite. These packages are less important to update, as the they can not influence the final executable that is part of the Ceph-CSI container-image. By moving these dependencies out of the main Ceph-CSI go.mod, it is easier to identify if a reported CVE affects Ceph-CSI, or only the testing (like most of the Kubernetes CVEs). Signed-off-by: Niels de Vos <ndevos@ibm.com>
80 lines
2.2 KiB
Go
80 lines
2.2 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package admission
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import (
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"time"
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"k8s.io/apimachinery/pkg/util/sets"
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)
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const (
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// timeToWaitForReady is the amount of time to wait to let an admission controller to be ready to satisfy a request.
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// this is useful when admission controllers need to warm their caches before letting requests through.
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timeToWaitForReady = 10 * time.Second
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)
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// ReadyFunc is a function that returns true if the admission controller is ready to handle requests.
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type ReadyFunc func() bool
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// Handler is a base for admission control handlers that
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// support a predefined set of operations
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type Handler struct {
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operations sets.String
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readyFunc ReadyFunc
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}
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// Handles returns true for methods that this handler supports
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func (h *Handler) Handles(operation Operation) bool {
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return h.operations.Has(string(operation))
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}
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// NewHandler creates a new base handler that handles the passed
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// in operations
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func NewHandler(ops ...Operation) *Handler {
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operations := sets.NewString()
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for _, op := range ops {
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operations.Insert(string(op))
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}
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return &Handler{
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operations: operations,
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}
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}
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// SetReadyFunc allows late registration of a ReadyFunc to know if the handler is ready to process requests.
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func (h *Handler) SetReadyFunc(readyFunc ReadyFunc) {
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h.readyFunc = readyFunc
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}
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// WaitForReady will wait for the readyFunc (if registered) to return ready, and in case of timeout, will return false.
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func (h *Handler) WaitForReady() bool {
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// there is no ready func configured, so we return immediately
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if h.readyFunc == nil {
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return true
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}
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timeout := time.After(timeToWaitForReady)
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for !h.readyFunc() {
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select {
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case <-time.After(100 * time.Millisecond):
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case <-timeout:
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return h.readyFunc()
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}
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}
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return true
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}
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