113 lines
3.7 KiB
Go
113 lines
3.7 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 pod
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import "k8s.io/kubernetes/pkg/api"
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const (
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// TODO: to be de!eted after v1.3 is released. PodSpec has a dedicated Hostname field.
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// The annotation value is a string specifying the hostname to be used for the pod e.g 'my-webserver-1'
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PodHostnameAnnotation = "pod.beta.kubernetes.io/hostname"
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// TODO: to be de!eted after v1.3 is released. PodSpec has a dedicated Subdomain field.
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// The annotation value is a string specifying the subdomain e.g. "my-web-service"
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// If specified, on the pod itself, "<hostname>.my-web-service.<namespace>.svc.<cluster domain>" would resolve to
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// the pod's IP.
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// If there is a headless service named "my-web-service" in the same namespace as the pod, then,
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// <hostname>.my-web-service.<namespace>.svc.<cluster domain>" would be resolved by the cluster DNS Server.
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PodSubdomainAnnotation = "pod.beta.kubernetes.io/subdomain"
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)
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// VisitPodSecretNames invokes the visitor function with the name of every secret
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// referenced by the pod spec. If visitor returns false, visiting is short-circuited.
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// Transitive references (e.g. pod -> pvc -> pv -> secret) are not visited.
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// Returns true if visiting completed, false if visiting was short-circuited.
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func VisitPodSecretNames(pod *api.Pod, visitor func(string) bool) bool {
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for _, reference := range pod.Spec.ImagePullSecrets {
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if !visitor(reference.Name) {
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return false
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}
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}
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for i := range pod.Spec.InitContainers {
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if !visitContainerSecretNames(&pod.Spec.InitContainers[i], visitor) {
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return false
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}
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}
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for i := range pod.Spec.Containers {
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if !visitContainerSecretNames(&pod.Spec.Containers[i], visitor) {
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return false
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}
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}
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var source *api.VolumeSource
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for i := range pod.Spec.Volumes {
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source = &pod.Spec.Volumes[i].VolumeSource
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switch {
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case source.AzureFile != nil:
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if len(source.AzureFile.SecretName) > 0 && !visitor(source.AzureFile.SecretName) {
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return false
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}
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case source.CephFS != nil:
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if source.CephFS.SecretRef != nil && !visitor(source.CephFS.SecretRef.Name) {
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return false
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}
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case source.FlexVolume != nil:
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if source.FlexVolume.SecretRef != nil && !visitor(source.FlexVolume.SecretRef.Name) {
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return false
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}
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case source.Projected != nil:
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for j := range source.Projected.Sources {
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if source.Projected.Sources[j].Secret != nil {
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if !visitor(source.Projected.Sources[j].Secret.Name) {
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return false
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}
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}
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}
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case source.RBD != nil:
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if source.RBD.SecretRef != nil && !visitor(source.RBD.SecretRef.Name) {
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return false
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}
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case source.Secret != nil:
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if !visitor(source.Secret.SecretName) {
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return false
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}
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case source.ScaleIO != nil:
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if source.ScaleIO.SecretRef != nil && !visitor(source.ScaleIO.SecretRef.Name) {
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return false
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}
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}
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}
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return true
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}
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func visitContainerSecretNames(container *api.Container, visitor func(string) bool) bool {
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for _, env := range container.EnvFrom {
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if env.SecretRef != nil {
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if !visitor(env.SecretRef.Name) {
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return false
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}
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}
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}
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for _, envVar := range container.Env {
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if envVar.ValueFrom != nil && envVar.ValueFrom.SecretKeyRef != nil {
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if !visitor(envVar.ValueFrom.SecretKeyRef.Name) {
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return false
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}
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}
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}
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return true
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}
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