k8s-csi-s3/pkg/driver/driver.go

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/*
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
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import (
"github.com/container-storage-interface/spec/lib/go/csi"
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"github.com/golang/glog"
csicommon "github.com/kubernetes-csi/drivers/pkg/csi-common"
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)
type driver struct {
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driver *csicommon.CSIDriver
endpoint string
ids *identityServer
ns *nodeServer
cs *controllerServer
}
var (
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vendorVersion = "v1.1.1"
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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 {
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glog.Fatalln("Failed to initialize CSI Driver.")
}
s3Driver := &driver{
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endpoint: endpoint,
driver: d,
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}
return s3Driver, nil
}
func (s3 *driver) newIdentityServer(d *csicommon.CSIDriver) *identityServer {
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return &identityServer{
DefaultIdentityServer: csicommon.NewDefaultIdentityServer(d),
}
}
func (s3 *driver) newControllerServer(d *csicommon.CSIDriver) *controllerServer {
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return &controllerServer{
DefaultControllerServer: csicommon.NewDefaultControllerServer(d),
}
}
func (s3 *driver) newNodeServer(d *csicommon.CSIDriver) *nodeServer {
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return &nodeServer{
DefaultNodeServer: csicommon.NewDefaultNodeServer(d),
}
}
func (s3 *driver) Run() {
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glog.Infof("Driver: %v ", driverName)
glog.Infof("Version: %v ", vendorVersion)
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// 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()
}