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https://github.com/ceph/ceph-csi.git
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57 lines
1.7 KiB
Go
57 lines
1.7 KiB
Go
/*
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Copyright 2021 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 policy
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import (
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"strings"
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"sync/atomic"
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corev1 "k8s.io/api/core/v1"
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)
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func joinQuote(items []string) string {
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if len(items) == 0 {
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return ""
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}
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return `"` + strings.Join(items, `", "`) + `"`
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}
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func pluralize(singular, plural string, count int) string {
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if count == 1 {
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return singular
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}
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return plural
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}
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var relaxPolicyForUserNamespacePods = &atomic.Bool{}
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// RelaxPolicyForUserNamespacePods allows opting into relaxing runAsUser /
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// runAsNonRoot restricted policies for user namespace pods, before the
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// usernamespace feature has reached GA and propagated to the oldest supported
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// nodes.
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// This should only be opted into in clusters where the administrator ensures
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// all nodes in the cluster enable the user namespace feature.
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func RelaxPolicyForUserNamespacePods(relax bool) {
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relaxPolicyForUserNamespacePods.Store(relax)
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}
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// relaxPolicyForUserNamespacePod returns true if a policy should be relaxed
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// because of enabled user namespaces in the provided pod spec.
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func relaxPolicyForUserNamespacePod(podSpec *corev1.PodSpec) bool {
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return relaxPolicyForUserNamespacePods.Load() && podSpec != nil && podSpec.HostUsers != nil && !*podSpec.HostUsers
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}
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