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configurable pv recyclers

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This commit is contained in:
markturansky
2015-09-02 23:14:26 -04:00
parent 0902f80f8b
commit 7bc55b5aea
16 changed files with 468 additions and 178 deletions
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43
cmd/kube-controller-manager/app/plugins.go
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@@ -25,9 +25,12 @@ import (
_ "k8s.io/kubernetes/pkg/cloudprovider/providers"
// Volume plugins
"k8s.io/kubernetes/pkg/util/io"
"k8s.io/kubernetes/pkg/volume"
"k8s.io/kubernetes/pkg/volume/host_path"
"k8s.io/kubernetes/pkg/volume/nfs"
"github.com/golang/glog"
)
// ProbeRecyclableVolumePlugins collects all persistent volume plugins into an easy to use list.
@@ -41,15 +44,41 @@ func ProbeRecyclableVolumePlugins(flags VolumeConfigFlags) []volume.VolumePlugin
// Each plugin can make use of VolumeConfig. The single arg to this func contains *all* enumerated
// CLI flags meant to configure volume plugins. From that single config, create an instance of volume.VolumeConfig
// for a specific plugin and pass that instance to the plugin's ProbeVolumePlugins(config) func.
hostPathConfig := volume.VolumeConfig{
// transfer attributes from VolumeConfig to this instance of volume.VolumeConfig
}
nfsConfig := volume.VolumeConfig{
// TODO transfer config.PersistentVolumeRecyclerTimeoutNFS and other flags to this instance of VolumeConfig
// Configuring recyclers will be done in a follow-up PR
}
// HostPath recycling is for testing and development purposes only!
hostPathConfig := volume.VolumeConfig{
RecyclerMinimumTimeout: flags.PersistentVolumeRecyclerMinimumTimeoutHostPath,
RecyclerTimeoutIncrement: flags.PersistentVolumeRecyclerIncrementTimeoutHostPath,
RecyclerPodTemplate: volume.NewPersistentVolumeRecyclerPodTemplate(),
}
if err := attemptToLoadRecycler(flags.PersistentVolumeRecyclerPodTemplateFilePathHostPath, &hostPathConfig); err != nil {
glog.Fatalf("Could not create hostpath recycler pod from file %s: %+v", err)
}
allPlugins = append(allPlugins, host_path.ProbeVolumePlugins(hostPathConfig)...)
nfsConfig := volume.VolumeConfig{
RecyclerMinimumTimeout: flags.PersistentVolumeRecyclerMinimumTimeoutNFS,
RecyclerTimeoutIncrement: flags.PersistentVolumeRecyclerIncrementTimeoutNFS,
RecyclerPodTemplate: volume.NewPersistentVolumeRecyclerPodTemplate(),
}
if err := attemptToLoadRecycler(flags.PersistentVolumeRecyclerPodTemplateFilePathNFS, &nfsConfig); err != nil {
glog.Fatalf("Could not create NFS recycler pod from file %s: %+v", err)
}
allPlugins = append(allPlugins, nfs.ProbeVolumePlugins(nfsConfig)...)
return allPlugins
}
// attemptToLoadRecycler tries decoding a pod from a filepath for use as a recycler for a volume.
// If successful, this method will set the recycler on the config.
// If unsucessful, an error is returned.
func attemptToLoadRecycler(path string, config *volume.VolumeConfig) error {
if path != "" {
recyclerPod, err := io.LoadPodFromFile(path)
if err != nil {
return err
}
config.RecyclerPodTemplate = recyclerPod
}
return nil
}