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identity.go
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identity.go
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/*
*
* Copyright © 2021 Dell Inc. or its subsidiaries. All Rights Reserved.
*
* 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 identity provides CSI specification compatible identity service.
package identity
import (
"context"
"github.com/container-storage-interface/spec/lib/go/csi"
"github.com/golang/protobuf/ptypes/wrappers"
)
// NewIdentityService creates new identity service
func NewIdentityService(name string, version string, manifest map[string]string) *Service {
return &Service{
name: name,
version: version,
ready: true,
manifest: manifest,
}
}
// Service is a identity service allows driver to return capabilities, health, and other metadata
type Service struct {
name string
version string
manifest map[string]string
ready bool
}
// GetPluginInfo returns general information about plugin (driver) such as name, version and manifest
func (s Service) GetPluginInfo(_ context.Context, _ *csi.GetPluginInfoRequest) (*csi.GetPluginInfoResponse, error) {
return &csi.GetPluginInfoResponse{
Name: s.name,
VendorVersion: s.version,
Manifest: s.manifest,
}, nil
}
// GetPluginCapabilities returns capabilities that are supported by the driver
func (s Service) GetPluginCapabilities(_ context.Context, _ *csi.GetPluginCapabilitiesRequest) (*csi.GetPluginCapabilitiesResponse, error) {
var rep csi.GetPluginCapabilitiesResponse
rep.Capabilities = []*csi.PluginCapability{
{
Type: &csi.PluginCapability_Service_{
Service: &csi.PluginCapability_Service{
Type: csi.PluginCapability_Service_CONTROLLER_SERVICE,
},
},
},
{
Type: &csi.PluginCapability_VolumeExpansion_{
VolumeExpansion: &csi.PluginCapability_VolumeExpansion{
Type: csi.PluginCapability_VolumeExpansion_ONLINE,
},
},
},
{
Type: &csi.PluginCapability_VolumeExpansion_{
VolumeExpansion: &csi.PluginCapability_VolumeExpansion{
Type: csi.PluginCapability_VolumeExpansion_OFFLINE,
},
},
},
{
Type: &csi.PluginCapability_Service_{
Service: &csi.PluginCapability_Service{
Type: csi.PluginCapability_Service_VOLUME_ACCESSIBILITY_CONSTRAINTS,
},
},
},
}
return &rep, nil
}
// Probe returns current state of the driver and if it is ready to receive requests
func (s Service) Probe(_ context.Context, _ *csi.ProbeRequest) (*csi.ProbeResponse, error) {
return &csi.ProbeResponse{Ready: &wrappers.BoolValue{Value: s.ready}}, nil
}