k8s-csi-s3/pkg/driver/driver.go
Cyrill Troxler 26cb1d95e8 Use volume ID as a prefix if the bucket is fixed in the storage class
With this, each volume will get its own prefix within the bucket if it
is configured in the storage class. This also ensures backwards
compatibility with older volumes that have been created in earlier
versions of csi-s3.
2021-04-05 15:07:16 +02:00

88 lines
2.4 KiB
Go

/*
Copyright 2017 The Kubernetes 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 driver
import (
"github.com/container-storage-interface/spec/lib/go/csi"
"github.com/golang/glog"
csicommon "github.com/kubernetes-csi/drivers/pkg/csi-common"
)
type driver struct {
driver *csicommon.CSIDriver
endpoint string
ids *identityServer
ns *nodeServer
cs *controllerServer
}
var (
vendorVersion = "v1.1.1"
driverName = "ch.ctrox.csi.s3-driver"
)
// New initializes the driver
func New(nodeID string, endpoint string) (*driver, error) {
d := csicommon.NewCSIDriver(driverName, vendorVersion, nodeID)
if d == nil {
glog.Fatalln("Failed to initialize CSI Driver.")
}
s3Driver := &driver{
endpoint: endpoint,
driver: d,
}
return s3Driver, nil
}
func (s3 *driver) newIdentityServer(d *csicommon.CSIDriver) *identityServer {
return &identityServer{
DefaultIdentityServer: csicommon.NewDefaultIdentityServer(d),
}
}
func (s3 *driver) newControllerServer(d *csicommon.CSIDriver) *controllerServer {
return &controllerServer{
DefaultControllerServer: csicommon.NewDefaultControllerServer(d),
}
}
func (s3 *driver) newNodeServer(d *csicommon.CSIDriver) *nodeServer {
return &nodeServer{
DefaultNodeServer: csicommon.NewDefaultNodeServer(d),
}
}
func (s3 *driver) Run() {
glog.Infof("Driver: %v ", driverName)
glog.Infof("Version: %v ", vendorVersion)
// Initialize default library driver
s3.driver.AddControllerServiceCapabilities([]csi.ControllerServiceCapability_RPC_Type{csi.ControllerServiceCapability_RPC_CREATE_DELETE_VOLUME})
s3.driver.AddVolumeCapabilityAccessModes([]csi.VolumeCapability_AccessMode_Mode{csi.VolumeCapability_AccessMode_SINGLE_NODE_WRITER})
// Create GRPC servers
s3.ids = s3.newIdentityServer(s3.driver)
s3.ns = s3.newNodeServer(s3.driver)
s3.cs = s3.newControllerServer(s3.driver)
s := csicommon.NewNonBlockingGRPCServer()
s.Start(s3.endpoint, s3.ids, s3.cs, s3.ns)
s.Wait()
}