mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
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121 lines
3.8 KiB
Go
121 lines
3.8 KiB
Go
/*
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Copyright 2017 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 testing
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import (
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"context"
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"fmt"
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v1 "k8s.io/api/core/v1"
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kubetypes "k8s.io/apimachinery/pkg/types"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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runtimeapi "k8s.io/cri-api/pkg/apis/runtime/v1"
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"k8s.io/kubernetes/pkg/features"
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kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
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)
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// FakeRuntimeHelper implements RuntimeHelper interfaces for testing purposes.
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type FakeRuntimeHelper struct {
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DNSServers []string
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DNSSearches []string
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DNSOptions []string
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HostName string
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HostDomain string
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PodContainerDir string
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RuntimeHandlers map[string]kubecontainer.RuntimeHandler
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Err error
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}
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func (f *FakeRuntimeHelper) GenerateRunContainerOptions(_ context.Context, pod *v1.Pod, container *v1.Container, podIP string, podIPs []string, imageVolumes kubecontainer.ImageVolumes) (*kubecontainer.RunContainerOptions, func(), error) {
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var opts kubecontainer.RunContainerOptions
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if len(container.TerminationMessagePath) != 0 {
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opts.PodContainerDir = f.PodContainerDir
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}
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return &opts, nil, nil
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}
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func (f *FakeRuntimeHelper) GetPodCgroupParent(pod *v1.Pod) string {
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return ""
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}
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func (f *FakeRuntimeHelper) GetPodDNS(pod *v1.Pod) (*runtimeapi.DNSConfig, error) {
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return &runtimeapi.DNSConfig{
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Servers: f.DNSServers,
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Searches: f.DNSSearches,
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Options: f.DNSOptions}, f.Err
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}
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// This is not used by docker runtime.
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func (f *FakeRuntimeHelper) GeneratePodHostNameAndDomain(pod *v1.Pod) (string, string, error) {
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return f.HostName, f.HostDomain, f.Err
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}
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func (f *FakeRuntimeHelper) GetPodDir(podUID kubetypes.UID) string {
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return "/poddir/" + string(podUID)
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}
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func (f *FakeRuntimeHelper) GetExtraSupplementalGroupsForPod(pod *v1.Pod) []int64 {
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return nil
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}
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func (f *FakeRuntimeHelper) GetOrCreateUserNamespaceMappings(pod *v1.Pod, runtimeHandler string) (*runtimeapi.UserNamespace, error) {
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featureEnabled := utilfeature.DefaultFeatureGate.Enabled(features.UserNamespacesSupport)
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if pod == nil || pod.Spec.HostUsers == nil {
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return nil, nil
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}
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// pod.Spec.HostUsers is set to true/false
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if !featureEnabled {
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return nil, fmt.Errorf("the feature gate %q is disabled: can't set spec.HostUsers", features.UserNamespacesSupport)
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}
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if *pod.Spec.HostUsers {
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return nil, nil
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}
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// From here onwards, hostUsers=false and the feature gate is enabled.
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// if the pod requested a user namespace and the runtime doesn't support user namespaces then return an error.
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if h, ok := f.RuntimeHandlers[runtimeHandler]; !ok {
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return nil, fmt.Errorf("RuntimeClass handler %q not found", runtimeHandler)
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} else if !h.SupportsUserNamespaces {
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return nil, fmt.Errorf("RuntimeClass handler %q does not support user namespaces", runtimeHandler)
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}
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ids := &runtimeapi.IDMapping{
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HostId: 65536,
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ContainerId: 0,
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Length: 65536,
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}
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return &runtimeapi.UserNamespace{
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Mode: runtimeapi.NamespaceMode_POD,
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Uids: []*runtimeapi.IDMapping{ids},
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Gids: []*runtimeapi.IDMapping{ids},
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}, nil
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}
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func (f *FakeRuntimeHelper) PrepareDynamicResources(ctx context.Context, pod *v1.Pod) error {
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return nil
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}
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func (f *FakeRuntimeHelper) UnprepareDynamicResources(ctx context.Context, pod *v1.Pod) error {
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return nil
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}
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func (f *FakeRuntimeHelper) SetPodWatchCondition(_ kubetypes.UID, _ string, _ func(*kubecontainer.PodStatus) bool) {
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// Not implemented.
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}
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