mirror of https://github.com/kubernetes/kops.git
79 lines
2.4 KiB
Go
79 lines
2.4 KiB
Go
/*
|
|
Copyright 2019 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package kubemanifest
|
|
|
|
import (
|
|
v1 "k8s.io/api/core/v1"
|
|
)
|
|
|
|
// HostPathMappingOption implements the "functional options pattern" for named variable parameters.
|
|
type HostPathMappingOption func(volumeMount *v1.VolumeMount, volume *v1.Volume)
|
|
|
|
// AddHostPathMapping is a helper function for mapping a host path into a container
|
|
// It returns a HostPathMapping for tweaking the defaults (which are notably read-only)
|
|
func AddHostPathMapping(pod *v1.Pod, container *v1.Container, name, path string, options ...HostPathMappingOption) {
|
|
pod.Spec.Volumes = append(pod.Spec.Volumes, v1.Volume{
|
|
Name: name,
|
|
VolumeSource: v1.VolumeSource{
|
|
HostPath: &v1.HostPathVolumeSource{
|
|
Path: path,
|
|
},
|
|
},
|
|
})
|
|
|
|
container.VolumeMounts = append(container.VolumeMounts, v1.VolumeMount{
|
|
Name: name,
|
|
MountPath: path,
|
|
ReadOnly: true,
|
|
})
|
|
|
|
volume := &pod.Spec.Volumes[len(pod.Spec.Volumes)-1]
|
|
volumeMount := &container.VolumeMounts[len(container.VolumeMounts)-1]
|
|
|
|
for _, option := range options {
|
|
option(volumeMount, volume)
|
|
}
|
|
}
|
|
|
|
// WithReadWrite changes the hostpath mapping to be read-write (the default is read-only)
|
|
func WithReadWrite() HostPathMappingOption {
|
|
return func(volumeMount *v1.VolumeMount, volume *v1.Volume) {
|
|
volumeMount.ReadOnly = false
|
|
}
|
|
}
|
|
|
|
// WithType changes the hostpath mount type
|
|
func WithType(t v1.HostPathType) HostPathMappingOption {
|
|
return func(volumeMount *v1.VolumeMount, volume *v1.Volume) {
|
|
volume.VolumeSource.HostPath.Type = &t
|
|
}
|
|
}
|
|
|
|
// WithHostPath changes the host path (the path in the host)
|
|
func WithHostPath(p string) HostPathMappingOption {
|
|
return func(volumeMount *v1.VolumeMount, volume *v1.Volume) {
|
|
volume.VolumeSource.HostPath.Path = p
|
|
}
|
|
}
|
|
|
|
// WithMountPath changes the mount path (the path in the container)
|
|
func WithMountPath(p string) HostPathMappingOption {
|
|
return func(volumeMount *v1.VolumeMount, volume *v1.Volume) {
|
|
volumeMount.MountPath = p
|
|
}
|
|
}
|