zfs-localpv/pkg/response/create.go
Pawan Prakash Sharma d0e97cddb2 adding topology support for zfspv (#7)
This PR adds support to allow the CSI driver to pick up a node matching the  topology specified in the storage class. Admin can specify allowedTopologies in the StorageClass to specify the nodes where the zfs pools are setup

```yaml
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: openebs-zfspv
allowVolumeExpansion: true
parameters:
  blocksize: "4k"
  compression: "on"
  dedup: "on"
  thinprovision: "yes"
  poolname: "zfspv-pool"
provisioner: zfs-localpv
volumeBindingMode: WaitForFirstConsumer
allowedTopologies:
- matchLabelExpressions:
  - key: kubernetes.io/hostname
    values:
      - gke-zfspv-pawan-default-pool-c8929518-cgd4
      - gke-zfspv-pawan-default-pool-c8929518-dxzc
```

Note: This PR picks up the first node from the list of nodes available.

Signed-off-by: Pawan <pawan@mayadata.io>
2019-11-01 06:46:04 +05:30

72 lines
2.2 KiB
Go

/*
Copyright © 2019 The OpenEBS 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 v1alpha1
import (
"github.com/container-storage-interface/spec/lib/go/csi"
)
// CreateVolumeResponseBuilder helps building an
// instance of csi CreateVolumeResponse
type CreateVolumeResponseBuilder struct {
response *csi.CreateVolumeResponse
}
// NewCreateVolumeResponseBuilder returns a new
// instance of CreateVolumeResponseBuilder
func NewCreateVolumeResponseBuilder() *CreateVolumeResponseBuilder {
return &CreateVolumeResponseBuilder{
response: &csi.CreateVolumeResponse{
Volume: &csi.Volume{},
},
}
}
// WithName sets the name against the
// CreateVolumeResponse instance
func (b *CreateVolumeResponseBuilder) WithName(name string) *CreateVolumeResponseBuilder {
b.response.Volume.VolumeId = name
return b
}
// WithName sets the capacity against the
// CreateVolumeResponse instance
func (b *CreateVolumeResponseBuilder) WithCapacity(capacity int64) *CreateVolumeResponseBuilder {
b.response.Volume.CapacityBytes = capacity
return b
}
// WithContext sets the context against the
// CreateVolumeResponse instance
func (b *CreateVolumeResponseBuilder) WithContext(ctx map[string]string) *CreateVolumeResponseBuilder {
b.response.Volume.VolumeContext = ctx
return b
}
// WithTopology sets the topology for the
// CreateVolumeResponse instance
func (b *CreateVolumeResponseBuilder) WithTopology(topology map[string]string) *CreateVolumeResponseBuilder {
b.response.Volume.AccessibleTopology = make([]*csi.Topology, 1)
b.response.Volume.AccessibleTopology[0] = &csi.Topology{Segments: topology}
return b
}
// Build returns the constructed instance
// of csi CreateVolumeResponse
func (b *CreateVolumeResponseBuilder) Build() *csi.CreateVolumeResponse {
return b.response
}