fix(controller): revert fail on publish volume when host doesn't exists

This reverts commit 07203cb.

pkg/controller/publisher.go

@@ -3,7 +3,6 @@ package controller
 import (
 	"context"
 	"errors"
-	"fmt"
 	"sort"
 	"strconv"
 	"strings"
@@ -15,22 +14,6 @@ import (
 	"k8s.io/klog"
 )
 
-func (driver *Driver) showHosts(hostName string) (interface{}, error) {
-	data, _, err := driver.dothillClient.Request("/show/hosts/")
-
-	if err != nil {
-		return nil, err
-	}
-
-	for _, object := range data.Objects {
-		if object.Name == "hosts" && object.PropertiesMap["host-id"].Data == hostName {
-			return object, nil
-		}
-	}
-
-	return nil, errors.New("host not found")
-}
-
 // ControllerPublishVolume attaches the given volume to the node
 func (driver *Driver) ControllerPublishVolume(ctx context.Context, req *csi.ControllerPublishVolumeRequest) (*csi.ControllerPublishVolumeResponse, error) {
 	if len(req.GetVolumeId()) == 0 {
@@ -53,11 +36,7 @@ func (driver *Driver) ControllerPublishVolume(ctx context.Context, req *csi.Cont
 	}
 
 	initiatorName := req.GetNodeId()
-	_, err = driver.showHosts(initiatorName)
-	if err != nil {
-		return nil, status.Error(codes.NotFound, fmt.Sprintf("cannot map volume, reason: \"%v\"", err.Error()))
-	}
-	klog.Infof("attach request for initiator %s, volume id: %s", initiatorName, req.GetVolumeId())
+	klog.Infof("attach request for initiator %s, volume id : %s", initiatorName, req.GetVolumeId())
 
 	lun, err := driver.chooseLUN()
 	if err != nil {
@@ -125,7 +104,7 @@ func (driver *Driver) chooseLUN() (int, error) {
 	sort.Sort(Volumes(volumes))
 	index := 1
 	for ; index < len(volumes); index++ {
-		if volumes[index].LUN-volumes[index-1].LUN > 1 {
+		if volumes[index].LUN - volumes[index-1].LUN > 1 {
 			return volumes[index-1].LUN + 1, nil
 		}
 	}
@@ -134,7 +113,7 @@ func (driver *Driver) chooseLUN() (int, error) {
 		return 1, nil
 	}
 
-	if volumes[len(volumes)-1].LUN+1 < common.MaximumLUN {
+	if volumes[len(volumes)-1].LUN + 1 < common.MaximumLUN {
 		return volumes[len(volumes)-1].LUN + 1, nil
 	}