96 lines
2.4 KiB
Go
96 lines
2.4 KiB
Go
/*
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Copyright 2016 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 flocker
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import (
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"fmt"
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"time"
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"k8s.io/apimachinery/pkg/util/rand"
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"k8s.io/kubernetes/pkg/api/v1"
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"k8s.io/kubernetes/pkg/volume"
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flockerapi "github.com/clusterhq/flocker-go"
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"github.com/golang/glog"
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)
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type FlockerUtil struct{}
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func (util *FlockerUtil) DeleteVolume(d *flockerVolumeDeleter) error {
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var err error
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if d.flockerClient == nil {
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d.flockerClient, err = d.plugin.newFlockerClient("")
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if err != nil {
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return err
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}
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}
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datasetUUID, err := d.GetDatasetUUID()
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if err != nil {
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return err
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}
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return d.flockerClient.DeleteDataset(datasetUUID)
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}
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func (util *FlockerUtil) CreateVolume(c *flockerVolumeProvisioner) (datasetUUID string, volumeSizeGB int, labels map[string]string, err error) {
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if c.flockerClient == nil {
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c.flockerClient, err = c.plugin.newFlockerClient("")
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if err != nil {
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return
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}
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}
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nodes, err := c.flockerClient.ListNodes()
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if err != nil {
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return
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}
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if len(nodes) < 1 {
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err = fmt.Errorf("no nodes found inside the flocker cluster to provision a dataset")
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return
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}
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// select random node
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rand.Seed(time.Now().UTC().UnixNano())
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node := nodes[rand.Intn(len(nodes))]
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glog.V(2).Infof("selected flocker node with UUID '%s' to provision dataset", node.UUID)
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capacity := c.options.PVC.Spec.Resources.Requests[v1.ResourceName(v1.ResourceStorage)]
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requestBytes := capacity.Value()
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volumeSizeGB = int(volume.RoundUpSize(requestBytes, 1024*1024*1024))
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createOptions := &flockerapi.CreateDatasetOptions{
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MaximumSize: requestBytes,
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Metadata: map[string]string{
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"type": "k8s-dynamic-prov",
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"pvc": c.options.PVC.Name,
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},
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Primary: node.UUID,
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}
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datasetState, err := c.flockerClient.CreateDataset(createOptions)
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if err != nil {
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return
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}
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datasetUUID = datasetState.DatasetID
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glog.V(2).Infof("successfully created Flocker dataset with UUID '%s'", datasetUUID)
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return
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}
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