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Fix golint issues

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This commit is contained in:
Madhu Rajanna
2019-01-15 23:56:50 +05:30
parent 52cf4aa902
commit 227dec63e0
11 changed files with 63 additions and 68 deletions
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26
pkg/rbd/controllerserver.go
View File

@ -24,6 +24,7 @@ import (
"time"
"github.com/ceph/ceph-csi/pkg/util"
"github.com/container-storage-interface/spec/lib/go/csi/v0"
"github.com/golang/glog"
"github.com/kubernetes-csi/drivers/pkg/csi-common"
@ -89,10 +90,10 @@ func (cs *controllerServer) CreateVolume(ctx context.Context, req *csi.CreateVol
// check for the requested capacity and already allocated capacity
if exVol, err := getRBDVolumeByName(req.GetName()); err == nil {
// Since err is nil, it means the volume with the same name already exists
// need to check if the size of exisiting volume is the same as in new
// need to check if the size of existing volume is the same as in new
// request
if exVol.VolSize >= int64(req.GetCapacityRange().GetRequiredBytes()) {
// exisiting volume is compatible with new request and should be reused.
// existing volume is compatible with new request and should be reused.
// TODO (sbezverk) Do I need to make sure that RBD volume still exists?
return &csi.CreateVolumeResponse{
Volume: &csi.Volume{
@ -102,7 +103,7 @@ func (cs *controllerServer) CreateVolume(ctx context.Context, req *csi.CreateVol
},
}, nil
}
return nil, status.Error(codes.AlreadyExists, fmt.Sprintf("Volume with the same name: %s but with different size already exist", req.GetName()))
return nil, status.Errorf(codes.AlreadyExists, "Volume with the same name: %s but with different size already exist", req.GetName())
}
// TODO (sbezverk) Last check for not exceeding total storage capacity
@ -268,7 +269,7 @@ func (cs *controllerServer) CreateSnapshot(ctx context.Context, req *csi.CreateS
},
}, nil
}
return nil, status.Error(codes.AlreadyExists, fmt.Sprintf("Snapshot with the same name: %s but with different source volume id already exist", req.GetName()))
return nil, status.Errorf(codes.AlreadyExists, "Snapshot with the same name: %s but with different source volume id already exist", req.GetName())
}
rbdSnap, err := getRBDSnapshotOptions(req.GetParameters())
@ -281,7 +282,7 @@ func (cs *controllerServer) CreateSnapshot(ctx context.Context, req *csi.CreateS
uniqueID := uuid.NewUUID().String()
rbdVolume, err := getRBDVolumeByID(req.GetSourceVolumeId())
if err != nil {
return nil, status.Error(codes.NotFound, fmt.Sprintf("Source Volume ID %s cannot found", req.GetSourceVolumeId()))
return nil, status.Errorf(codes.NotFound, "Source Volume ID %s cannot found", req.GetSourceVolumeId())
}
if !hasSnapshotFeature(rbdVolume.ImageFeatures) {
return nil, fmt.Errorf("Volume(%s) has not snapshot feature(layering)", req.GetSourceVolumeId())
@ -322,7 +323,7 @@ func (cs *controllerServer) CreateSnapshot(ctx context.Context, req *csi.CreateS
if err != nil {
return nil, fmt.Errorf("snapshot is created but failed to protect and delete snapshot: %v", err)
}
return nil, fmt.Errorf("Snapshot is created but failed to protect snapshot")
return nil, errors.New("snapshot is created but failed to protect snapshot")
}
}
@ -333,12 +334,12 @@ func (cs *controllerServer) CreateSnapshot(ctx context.Context, req *csi.CreateS
// Unprotect snapshot
err := unprotectSnapshot(rbdSnap, rbdSnap.AdminId, req.GetCreateSnapshotSecrets())
if err != nil {
return nil, status.Error(codes.Unknown, fmt.Sprintf("This Snapshot should be removed but failed to unprotect snapshot: %s/%s with error: %v", rbdSnap.Pool, rbdSnap.SnapName, err))
return nil, status.Errorf(codes.Unknown, "This Snapshot should be removed but failed to unprotect snapshot: %s/%s with error: %v", rbdSnap.Pool, rbdSnap.SnapName, err)
}
// Deleting snapshot
glog.V(4).Infof("deleting Snaphot %s", rbdSnap.SnapName)
if err := deleteSnapshot(rbdSnap, rbdSnap.AdminId, req.GetCreateSnapshotSecrets()); err != nil {
return nil, status.Error(codes.Unknown, fmt.Sprintf("This Snapshot should be removed but failed to delete snapshot: %s/%s with error: %v", rbdSnap.Pool, rbdSnap.SnapName, err))
return nil, status.Errorf(codes.Unknown, "This Snapshot should be removed but failed to delete snapshot: %s/%s with error: %v", rbdSnap.Pool, rbdSnap.SnapName, err)
}
return nil, err
}
@ -378,13 +379,13 @@ func (cs *controllerServer) DeleteSnapshot(ctx context.Context, req *csi.DeleteS
// Unprotect snapshot
err := unprotectSnapshot(rbdSnap, rbdSnap.AdminId, req.GetDeleteSnapshotSecrets())
if err != nil {
return nil, status.Error(codes.FailedPrecondition, fmt.Sprintf("failed to unprotect snapshot: %s/%s with error: %v", rbdSnap.Pool, rbdSnap.SnapName, err))
return nil, status.Errorf(codes.FailedPrecondition, "failed to unprotect snapshot: %s/%s with error: %v", rbdSnap.Pool, rbdSnap.SnapName, err)
}
// Deleting snapshot
glog.V(4).Infof("deleting Snaphot %s", rbdSnap.SnapName)
if err := deleteSnapshot(rbdSnap, rbdSnap.AdminId, req.GetDeleteSnapshotSecrets()); err != nil {
return nil, status.Error(codes.FailedPrecondition, fmt.Sprintf("failed to delete snapshot: %s/%s with error: %v", rbdSnap.Pool, rbdSnap.SnapName, err))
return nil, status.Errorf(codes.FailedPrecondition, "failed to delete snapshot: %s/%s with error: %v", rbdSnap.Pool, rbdSnap.SnapName, err)
}
if err := cs.MetadataStore.Delete(snapshotID); err != nil {
@ -412,7 +413,7 @@ func (cs *controllerServer) ListSnapshots(ctx context.Context, req *csi.ListSnap
if rbdSnap, ok := rbdSnapshots[snapshotID]; ok {
// if source volume ID also set, check source volume id on the cache.
if len(sourceVolumeId) != 0 && rbdSnap.SourceVolumeID != sourceVolumeId {
return nil, status.Error(codes.Unknown, fmt.Sprintf("Requested Source Volume ID %s is different from %s", sourceVolumeId, rbdSnap.SourceVolumeID))
return nil, status.Errorf(codes.Unknown, "Requested Source Volume ID %s is different from %s", sourceVolumeId, rbdSnap.SourceVolumeID)
}
return &csi.ListSnapshotsResponse{
Entries: []*csi.ListSnapshotsResponse_Entry{
@ -429,9 +430,8 @@ func (cs *controllerServer) ListSnapshots(ctx context.Context, req *csi.ListSnap
},
},
}, nil
} else {
return nil, status.Error(codes.NotFound, fmt.Sprintf("Snapshot ID %s cannot found", snapshotID))
}
return nil, status.Errorf(codes.NotFound, "Snapshot ID %s cannot found", snapshotID)
}
entries := []*csi.ListSnapshotsResponse_Entry{}

2
pkg/rbd/rbd.go
View File

@ -104,7 +104,7 @@ func (rbd *rbd) Run(driverName, nodeID, endpoint string, containerized bool, cac
rbd.ids = NewIdentityServer(rbd.driver)
rbd.ns, err = NewNodeServer(rbd.driver, containerized)
if err != nil {
glog.Fatalln("failed to start node server, err %v", err)
glog.Fatalf("failed to start node server, err %v \n", err)
}
rbd.cs = NewControllerServer(rbd.driver, cachePersister)

8
pkg/rbd/rbd_attach.go
View File

@ -61,15 +61,15 @@ func getDevFromImageAndPool(pool, image string) (string, bool) {
// Search /sys/bus for rbd device that matches given pool and image.
func getRbdDevFromImageAndPool(pool string, image string) (string, bool) {
// /sys/bus/rbd/devices/X/name and /sys/bus/rbd/devices/X/pool
sys_path := "/sys/bus/rbd/devices"
if dirs, err := ioutil.ReadDir(sys_path); err == nil {
sysPath := "/sys/bus/rbd/devices"
if dirs, err := ioutil.ReadDir(sysPath); err == nil {
for _, f := range dirs {
// Pool and name format:
// see rbd_pool_show() and rbd_name_show() at
// https://github.com/torvalds/linux/blob/master/drivers/block/rbd.c
name := f.Name()
// First match pool, then match name.
poolFile := path.Join(sys_path, name, "pool")
poolFile := path.Join(sysPath, name, "pool")
poolBytes, err := ioutil.ReadFile(poolFile)
if err != nil {
glog.V(4).Infof("error reading %s: %v", poolFile, err)
@ -79,7 +79,7 @@ func getRbdDevFromImageAndPool(pool string, image string) (string, bool) {
glog.V(4).Infof("device %s is not %q: %q", name, pool, string(poolBytes))
continue
}
imgFile := path.Join(sys_path, name, "name")
imgFile := path.Join(sysPath, name, "name")
imgBytes, err := ioutil.ReadFile(imgFile)
if err != nil {
glog.V(4).Infof("error reading %s: %v", imgFile, err)

30
pkg/rbd/rbd_util.go
View File

@ -102,13 +102,14 @@ func getMon(pOpts *rbdVolume, credentials map[string]string) (string, error) {
// if mons are set in secret, retrieve them
if len(pOpts.MonValueFromSecret) == 0 {
// yet another sanity check
return "", fmt.Errorf("either monitors or monValueFromSecret must be set")
return "", errors.New("either monitors or monValueFromSecret must be set")
}
if val, ok := credentials[pOpts.MonValueFromSecret]; !ok {
val, ok := credentials[pOpts.MonValueFromSecret]
if !ok {
return "", fmt.Errorf("mon data %s is not set in secret", pOpts.MonValueFromSecret)
} else {
mon = val
}
mon = val
}
return mon, nil
}
@ -187,10 +188,9 @@ func rbdStatus(pOpts *rbdVolume, userId string, credentials map[string]string) (
if strings.Contains(output, imageWatcherStr) {
glog.V(4).Infof("rbd: watchers on %s: %s", image, output)
return true, output, nil
} else {
glog.Warningf("rbd: no watchers on %s", image)
return false, output, nil
}
glog.Warningf("rbd: no watchers on %s", image)
return false, output, nil
}
// DeleteImage deletes a ceph image with provision and volume options.
@ -234,13 +234,13 @@ func getRBDVolumeOptions(volOptions map[string]string) (*rbdVolume, error) {
rbdVol := &rbdVolume{}
rbdVol.Pool, ok = volOptions["pool"]
if !ok {
return nil, fmt.Errorf("Missing required parameter pool")
return nil, errors.New("Missing required parameter pool")
}
rbdVol.Monitors, ok = volOptions["monitors"]
if !ok {
// if mons are not set in options, check if they are set in secret
if rbdVol.MonValueFromSecret, ok = volOptions["monValueFromSecret"]; !ok {
return nil, fmt.Errorf("Either monitors or monValueFromSecret must be set")
return nil, errors.New("Either monitors or monValueFromSecret must be set")
}
}
rbdVol.ImageFormat, ok = volOptions["imageFormat"]
@ -282,13 +282,13 @@ func getRBDSnapshotOptions(snapOptions map[string]string) (*rbdSnapshot, error)
rbdSnap := &rbdSnapshot{}
rbdSnap.Pool, ok = snapOptions["pool"]
if !ok {
return nil, fmt.Errorf("Missing required parameter pool")
return nil, errors.New("Missing required parameter pool")
}
rbdSnap.Monitors, ok = snapOptions["monitors"]
if !ok {
// if mons are not set in options, check if they are set in secret
if rbdSnap.MonValueFromSecret, ok = snapOptions["monValueFromSecret"]; !ok {
return nil, fmt.Errorf("Either monitors or monValueFromSecret must be set")
return nil, errors.New("Either monitors or monValueFromSecret must be set")
}
}
rbdSnap.AdminId, ok = snapOptions["adminid"]
@ -344,13 +344,13 @@ func getSnapMon(pOpts *rbdSnapshot, credentials map[string]string) (string, erro
// if mons are set in secret, retrieve them
if len(pOpts.MonValueFromSecret) == 0 {
// yet another sanity check
return "", fmt.Errorf("either monitors or monValueFromSecret must be set")
return "", errors.New("either monitors or monValueFromSecret must be set")
}
if val, ok := credentials[pOpts.MonValueFromSecret]; !ok {
val, ok := credentials[pOpts.MonValueFromSecret]
if !ok {
return "", fmt.Errorf("mon data %s is not set in secret", pOpts.MonValueFromSecret)
} else {
mon = val
}
mon = val
}
return mon, nil
}