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https://github.com/ceph/ceph-csi.git
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32839948ef
The internal/ directory in Go has a special meaning, and indicates that those packages are not meant for external consumption. Ceph-CSI does provide public APIs for other projects to consume. There is no plan to keep the API of the internally used packages stable. Closes: #903 Signed-off-by: Niels de Vos <ndevos@redhat.com>
110 lines
3.0 KiB
Go
110 lines
3.0 KiB
Go
/*
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Copyright 2017 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 csicommon
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import (
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"fmt"
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"github.com/container-storage-interface/spec/lib/go/csi"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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"k8s.io/klog"
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)
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// CSIDriver stores driver information
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type CSIDriver struct {
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name string
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nodeID string
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version string
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// topology constraints that this nodeserver will advertise
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topology map[string]string
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cap []*csi.ControllerServiceCapability
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vc []*csi.VolumeCapability_AccessMode
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}
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// NewCSIDriver Creates a NewCSIDriver object. Assumes vendor
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// version is equal to driver version & does not support optional
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// driver plugin info manifest field. Refer to CSI spec for more details.
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func NewCSIDriver(name, v, nodeID string) *CSIDriver {
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if name == "" {
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klog.Errorf("Driver name missing")
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return nil
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}
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if nodeID == "" {
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klog.Errorf("NodeID missing")
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return nil
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}
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// TODO version format and validation
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if v == "" {
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klog.Errorf("Version argument missing")
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return nil
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}
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driver := CSIDriver{
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name: name,
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version: v,
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nodeID: nodeID,
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}
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return &driver
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}
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// ValidateControllerServiceRequest validates the controller
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// plugin capabilities
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func (d *CSIDriver) ValidateControllerServiceRequest(c csi.ControllerServiceCapability_RPC_Type) error {
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if c == csi.ControllerServiceCapability_RPC_UNKNOWN {
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return nil
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}
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for _, cap := range d.cap {
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if c == cap.GetRpc().GetType() {
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return nil
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}
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}
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return status.Error(codes.InvalidArgument, fmt.Sprintf("%s", c)) //nolint
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}
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// AddControllerServiceCapabilities stores the controller capabilities
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// in driver object
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func (d *CSIDriver) AddControllerServiceCapabilities(cl []csi.ControllerServiceCapability_RPC_Type) {
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var csc []*csi.ControllerServiceCapability
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for _, c := range cl {
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klog.V(1).Infof("Enabling controller service capability: %v", c.String())
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csc = append(csc, NewControllerServiceCapability(c))
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}
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d.cap = csc
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}
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// AddVolumeCapabilityAccessModes stores volume access modes
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func (d *CSIDriver) AddVolumeCapabilityAccessModes(vc []csi.VolumeCapability_AccessMode_Mode) []*csi.VolumeCapability_AccessMode {
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var vca []*csi.VolumeCapability_AccessMode
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for _, c := range vc {
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klog.V(1).Infof("Enabling volume access mode: %v", c.String())
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vca = append(vca, NewVolumeCapabilityAccessMode(c))
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}
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d.vc = vca
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return vca
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}
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// GetVolumeCapabilityAccessModes returns access modes
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func (d *CSIDriver) GetVolumeCapabilityAccessModes() []*csi.VolumeCapability_AccessMode {
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return d.vc
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}
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