modify pod app link support

Signed-off-by: Petr Fedchenkov <giggsoff@gmail.com>

Author: giggsoff

cmd/podModify.go

@@ -11,6 +11,8 @@ import (
 	"github.com/spf13/cobra"
 )
 
+var podLink string
+
 //podModifyCmd is a command to modify app
 var podModifyCmd = &cobra.Command{
 	Use:   "modify",
@@ -51,9 +53,31 @@ var podModifyCmd = &cobra.Command{
 					opts = append(opts, expect.WithPortsPublish(portPublish))
 				}
 				opts = append(opts, expect.WithOldApp(appName))
-				expectation := expect.AppExpectationFromURL(ctrl, dev, defaults.DefaultDummyExpect, appName, opts...)
-				appInstanceConfig := expectation.Application()
+				link := defaults.DefaultDummyExpect
+				newLink := false
 				needPurge := false
+				if podLink != "" {
+					needPurge = true
+					newLink = true
+					link = podLink
+					volumeIDs := dev.GetVolumes()
+					// we need to purge old volumes from controller
+					utils.DelEleInSliceByFunction(&volumeIDs, func(i interface{}) bool {
+						vol, err := ctrl.GetVolume(i.(string))
+						if err != nil {
+							log.Fatalf("no volume in cloud %s: %s", i.(string), err)
+						}
+						for _, volRef := range app.VolumeRefList {
+							if vol.Uuid == volRef.Uuid {
+								return true
+							}
+						}
+						return false
+					})
+					dev.SetVolumeConfigs(volumeIDs)
+				}
+				expectation := expect.AppExpectationFromURL(ctrl, dev, link, appName, opts...)
+				appInstanceConfig := expectation.Application()
 				if len(app.Interfaces) != len(appInstanceConfig.Interfaces) {
 					needPurge = true
 				} else {
@@ -64,14 +88,17 @@ var podModifyCmd = &cobra.Command{
 						}
 					}
 				}
+				app.Interfaces = appInstanceConfig.Interfaces
+				if newLink {
+					app.VolumeRefList = appInstanceConfig.VolumeRefList
+					app.Drives = appInstanceConfig.Drives
+				}
 				if needPurge {
 					if app.Purge == nil {
 						app.Purge = &config.InstanceOpsCmd{Counter: 0}
 					}
 					app.Purge.Counter++
 				}
-				//now we only change networks
-				app.Interfaces = appInstanceConfig.Interfaces
 				if err = changer.setControllerAndDev(ctrl, dev); err != nil {
 					log.Fatalf("setControllerAndDev: %s", err)
 				}
@@ -88,4 +115,5 @@ func podModifyInit() {
 	podModifyCmd.Flags().StringSliceVarP(&portPublish, "publish", "p", nil, "Ports to publish in format EXTERNAL_PORT:INTERNAL_PORT")
 	podModifyCmd.Flags().BoolVar(&aclOnlyHost, "only-host", false, "Allow access only to host and external networks")
 	podModifyCmd.Flags().StringSliceVar(&podNetworks, "networks", nil, "Networks to connect to app (ports will be mapped to first network)")
+	podModifyCmd.Flags().StringVar(&podLink, "link", "", "Set new app link for pod")
 }