Bharat Kumar 052c24c4d1 CLOUDSTACK-702: Multiple ip ranges in different subnets.
This feature enables adding of guest ip ranges (public ips)  form different subnets.

In order to provide the dhcp service to a different subnet we create an ipalias on the router. This allows the router to listen to the dhcp request from the guest vms and respond accordingly. Every time a vm is deployed in the new subnet we configure an ip alias on the router. Cloudstack uses dnsmasq to provide dhcp service. We need to configure the dnsmasq to issue ips on the new subnets. Added a new class dnsmasqconfigurator which generates the dnsmasq confg file, this file replaces the old config in the router.

The details of the alias ips are stored in db in the nic_ip_alias table. Every time a new subnet is added one of the ip from the subnet is used to configure the ip alias.

I have pushed the code to  https://github.com/bvbharatk/cloud-stack/tree/Cloudstack-702 , also rebased the code with master.
I need to test the code for advanced sg enabled network using kvm.

I have added the unit test
Marvin tests are at https://git-wip-us.apache.org/repos/asf?p=cloudstack.git;h=53e4965

Also accomodated some of the changes suggested by koushik.
corrected the import statements. renamed the IpAlias command to createIpAlias command.

This feature supports only ipv4
2013-05-13 17:06:44 +05:30
..
Storage motion for Xenserver changes: 1. Implemented Api findStoragePoolsForMigration. Added a new response objects to list storage pools available for migration. 2. Updated migrateVolume api for allowing migrating volumes of running vms. These changes are integrated into the latest storage refactoring changes. 3. Added the implementation for findHostsForMigration api. It lists the hosts to which an instance can be migrated, including hosts from within and across clusters to which an instance may be migrated with storage motion. The work of migrating a volume of a running vm is also done in copyAsync. 4. Updated the listHosts api for backward compatibility. 5. Added the implementation for migrateVirtualMachineWithVolume api. It migrates an instance with its volumes within a cluster and also across clusters. Also introduced a new XenServerStorageMotionStrategy for migrating volumes of a vm. When a vm is being migrated with its volumes, the vm is put in migrating state and a request is send to the volume manager to migrate the vm and its volumes. Volume manager calls into the volume service which forwards the request to data motion service after moving all the volumes to migrating state. Data motion service enumerates the strategies and the request reaches the XenServerStorageMotionStrategy. It calls in to the resource to complete the operation. 6. Resolved an issue where storage xenmotion of 2nd VM created from the same template to a host was failing with duplicate_vm exception. Made changes to remove the mac_seed key value pair from other_config when vms are created. This is was storage motion to fail. 7. Updated the db upgrade schema script. 8. Added the right permissions in commands.properties 9. Marvin tests for testing storage motion. Following scenarios are tested. 9.1. A virtual machine is migrated to another host. Its volumes are also migrated to another storage pool. 9.2. Just the volumes of a vm are migrated to another storage pool while the vm continues to run on the same host. 10. Unit tests for testing migration of a vm with its volumes.
2013-04-19 11:36:42 +05:30
2013-02-26 21:44:44 -08:00