Adds filtering of hosts to DialContexts.

The provided DialContext wraps existing clients' DialContext in an attempt to
preserve any existing timeout configuration. In some cases, we may replace
infinite timeouts with golang defaults.

- scaleio: tcp connect/keepalive values changed from 0/15 to 30/30
- storageos: no change

pkg/volume/scaleio/sio_mgr.go

@@ -21,6 +21,7 @@ import (
 	"strconv"
 
 	"k8s.io/klog/v2"
+	"k8s.io/kubernetes/pkg/volume"
 	utilexec "k8s.io/utils/exec"
 
 	siotypes "github.com/thecodeteam/goscaleio/types/v1"
@@ -30,9 +31,10 @@ type sioMgr struct {
 	client     sioInterface
 	configData map[string]string
 	exec       utilexec.Interface
+	host       volume.VolumeHost
 }
 
-func newSioMgr(configs map[string]string, exec utilexec.Interface) (*sioMgr, error) {
+func newSioMgr(configs map[string]string, host volume.VolumeHost, exec utilexec.Interface) (*sioMgr, error) {
 	if configs == nil {
 		return nil, errors.New("missing configuration data")
 	}
@@ -41,7 +43,7 @@ func newSioMgr(configs map[string]string, exec utilexec.Interface) (*sioMgr, err
 	configs[confKey.sdcRootPath] = defaultString(configs[confKey.sdcRootPath], sdcRootPath)
 	configs[confKey.storageMode] = defaultString(configs[confKey.storageMode], "ThinProvisioned")
 
-	mgr := &sioMgr{configData: configs, exec: exec}
+	mgr := &sioMgr{configData: configs, host: host, exec: exec}
 	return mgr, nil
 }
 
@@ -61,7 +63,7 @@ func (m *sioMgr) getClient() (sioInterface, error) {
 		certsEnabled := b
 
 		klog.V(4).Info(log("creating new client for gateway %s", gateway))
-		client, err := newSioClient(gateway, username, password, certsEnabled, m.exec)
+		client, err := newSioClient(gateway, username, password, certsEnabled, m.exec, m.host.GetFilteredDialOptions())
 		if err != nil {
 			klog.Error(log("failed to create scaleio client: %v", err))
 			return nil, err