csi

package
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 Go to latest Published: Jun 7, 2022 License: Apache-2.0 Imports: 19 Imported by: 0

Documentation

Overview

Package csi is CSI driver interface for OSD Copyright 2017 Portworx

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 csi is CSI driver interface for OSD Copyright 2017 Portworx

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 csi is CSI driver interface for OSD Copyright 2017 Portworx

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 csi is CSI driver interface for OSD Copyright 2017 Portworx

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.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func NewOsdCsiServer 

func NewOsdCsiServer(config *OsdCsiServerConfig) (grpcserver.Server, error)

NewOsdCsiServer creates a gRPC CSI complient server on the specified port and transport.

Types

type OsdCsiServer 

type OsdCsiServer struct {
	csi.ControllerServer
	csi.NodeServer
	csi.IdentityServer

	*grpcserver.GrpcServer
	// contains filtered or unexported fields
}

OsdCsiServer is a OSD CSI compliant server which proxies CSI requests for a single specific driver

func (*OsdCsiServer) ControllerGetCapabilities 

func (s *OsdCsiServer) ControllerGetCapabilities(
	ctx context.Context,
	req *csi.ControllerGetCapabilitiesRequest,
) (*csi.ControllerGetCapabilitiesResponse, error)

ControllerGetCapabilities is a CSI API functions which returns to the caller the capabilities of the OSD CSI driver.

func (*OsdCsiServer) ControllerPublishVolume 

func (s *OsdCsiServer) ControllerPublishVolume(
	context.Context,
	*csi.ControllerPublishVolumeRequest,
) (*csi.ControllerPublishVolumeResponse, error)

ControllerPublishVolume is a CSI API implements the attachment of a volume on to a node.

func (*OsdCsiServer) ControllerUnpublishVolume 

func (s *OsdCsiServer) ControllerUnpublishVolume(
	context.Context,
	*csi.ControllerUnpublishVolumeRequest,
) (*csi.ControllerUnpublishVolumeResponse, error)

ControllerUnpublishVolume is a CSI API which implements the detaching of a volume onto a node.

func (*OsdCsiServer) CreateSnapshot 

func (s *OsdCsiServer) CreateSnapshot(
	ctx context.Context,
	req *csi.CreateSnapshotRequest,
) (*csi.CreateSnapshotResponse, error)

CreateSnapshot is a CSI implementation to create a snapshot from the volume

func (*OsdCsiServer) CreateVolume 

func (s *OsdCsiServer) CreateVolume(
	ctx context.Context,
	req *csi.CreateVolumeRequest,
) (*csi.CreateVolumeResponse, error)

CreateVolume is a CSI API which creates a volume on OSD This function supports snapshots if the parent volume id is supplied in the parameters.

func (*OsdCsiServer) DeleteSnapshot 

func (s *OsdCsiServer) DeleteSnapshot(
	ctx context.Context,
	req *csi.DeleteSnapshotRequest,
) (*csi.DeleteSnapshotResponse, error)

DeleteSnapshot is a CSI implementation to delete a snapshot

func (*OsdCsiServer) DeleteVolume 

func (s *OsdCsiServer) DeleteVolume(
	ctx context.Context,
	req *csi.DeleteVolumeRequest,
) (*csi.DeleteVolumeResponse, error)

DeleteVolume is a CSI API which deletes a volume

func (*OsdCsiServer) GetPluginCapabilities 

func (s *OsdCsiServer) GetPluginCapabilities(
	ctx context.Context,
	req *csi.GetPluginCapabilitiesRequest,
) (*csi.GetPluginCapabilitiesResponse, error)

GetPluginCapabilities is a CSI API

func (*OsdCsiServer) GetPluginInfo 

func (s *OsdCsiServer) GetPluginInfo(
	ctx context.Context,
	req *csi.GetPluginInfoRequest) (*csi.GetPluginInfoResponse, error)

GetPluginInfo is a CSI API which returns the information about the plugin. This includes name, version, and any other OSD specific information

func (*OsdCsiServer) ListSnapshots 

func (s *OsdCsiServer) ListSnapshots(
	ctx context.Context,
	req *csi.ListSnapshotsRequest,
) (*csi.ListSnapshotsResponse, error)

ListSnapshots is not supported (we can add this later)

func (*OsdCsiServer) ListVolumes 

func (s *OsdCsiServer) ListVolumes(
	ctx context.Context,
	req *csi.ListVolumesRequest,
) (*csi.ListVolumesResponse, error)

ListVolumes is a CSI API which returns to the caller all volume ids on this cluster. This includes ids created by CSI and ids created using other interfaces. This is important because the user could be requesting to mount a OSD volume created using non-CSI interfaces.

This call does not yet implement tokens to due to the following issue: https://github.com/container-storage-interface/spec/issues/138

func (*OsdCsiServer) NodeGetCapabilities 

func (s *OsdCsiServer) NodeGetCapabilities(
	ctx context.Context,
	req *csi.NodeGetCapabilitiesRequest,
) (*csi.NodeGetCapabilitiesResponse, error)

NodeGetCapabilities is a CSI API function which seems to be setup for future patches

func (*OsdCsiServer) NodeGetId 

func (s *OsdCsiServer) NodeGetId(
	ctx context.Context,
	req *csi.NodeGetIdRequest,
) (*csi.NodeGetIdResponse, error)

NodeGetId is a CSI API which gets the PX NodeId for the local node

func (*OsdCsiServer) NodeGetInfo 

func (s *OsdCsiServer) NodeGetInfo(
	ctx context.Context,
	req *csi.NodeGetInfoRequest,
) (*csi.NodeGetInfoResponse, error)

func (*OsdCsiServer) NodePublishVolume 

func (s *OsdCsiServer) NodePublishVolume(
	ctx context.Context,
	req *csi.NodePublishVolumeRequest,
) (*csi.NodePublishVolumeResponse, error)

NodePublishVolume is a CSI API call which mounts the volume on the specified target path on the node.

TODO: Support READ ONLY Mounts

func (*OsdCsiServer) NodeUnpublishVolume 

func (s *OsdCsiServer) NodeUnpublishVolume(
	ctx context.Context,
	req *csi.NodeUnpublishVolumeRequest,
) (*csi.NodeUnpublishVolumeResponse, error)

NodeUnpublishVolume is a CSI API call which unmounts the volume.

func (*OsdCsiServer) Probe 

func (s *OsdCsiServer) Probe(
	ctx context.Context,
	req *csi.ProbeRequest,
) (*csi.ProbeResponse, error)

Probe is a CSI API

func (*OsdCsiServer) Start 

func (s *OsdCsiServer) Start() error

Start is used to start the server. It will return an error if the server is already running.

func (*OsdCsiServer) ValidateVolumeCapabilities 

func (s *OsdCsiServer) ValidateVolumeCapabilities(
	ctx context.Context,
	req *csi.ValidateVolumeCapabilitiesRequest,
) (*csi.ValidateVolumeCapabilitiesResponse, error)

ValidateVolumeCapabilities is a CSI API used by container orchestration systems to make sure a volume specification is validiated by the CSI driver. Note: The method used here to return errors is still not part of the spec. See: https://github.com/container-storage-interface/spec/pull/115 Discussion: https://groups.google.com/forum/#!topic/kubernetes-sig-storage-wg-csi/TpTrNFbRa1I

type OsdCsiServerConfig 

type OsdCsiServerConfig struct {
	Net        string
	Address    string
	DriverName string
	Cluster    cluster.Cluster

	// Name to be reported back to the CO. If not provided,
	// the name will be in the format of <driver>.openstorage.org
	CsiDriverName string
}

OsdCsiServerConfig provides the configuration to the the gRPC CSI server created by NewOsdCsiServer()

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