Migrate Applications from Remote Grids Using the Application Migrate Command

The Application Migrate command lets you migrate applications from remote grids.

To migrate the application from a remote grid using the application migrate command

Log in to the new grid with ssh agent forwarding enabled (ssh -A newgrid.myhosting.com)
Migrate the application (app migrate oldgrid.myhosting.com myapp --import)
If the old application was running, it will be stopped prior to the migration; in that case, once the migration is complete, the application will be started on the new grid. Otherwise, you need to start it guidely (app start myapp)

Once you are happy with the application running on the new grid, you can delete the application from the old grid (app destroy myapp executed on the old grid)

Be aware of the following:

If the application needs different IP addresses or other settings to run properly on the new grid, help ensure that you provide those new settings in the app migrate command. For example, to change the IP address and gateway during migration:
```
app migrate oldgrid.myhosting.com myapp --import primary_ip=209.100.101.12 gateway=209.100.101.1 
```
You can change any configuration parameters during the migration, except volume sizes. See the online help on app migrate and app config for more details (look at the app entity in Command Line Shell or use the shell's built-in help: help app migrate).
To migrate an application to a remote grid using the application migrate command, the procedure is the same as importing an application described above except that --import should be replaced with --export on the command line.