CLOUDSTACK-10060:ListUsage API always displays the Virtual size as '0' for Usage type=9 (snapshot)

[PranaliM]

Bug Description:
In the listUsage API, the Virtual Size of Snapshot is always displayed as '0'.

Root Cause:
In case of snapshots, the usage is accounted for depending on the value of the global parameter, 'usage.snapshot.virtualsize.select'. If set to 'true', the usage calculation is done based on the Virtual Size, and if set to false, it is done based on the Physical size. In the Usage API, this value, (i.e. virtual or physical) is displayed as 'Size' field correctly, but the field 'VirtualSize' is always displayed as 0. This is misleading.

Expected Output:
Since this is a Usage API, ideally only that size should be displayed which is used for billing, depending on the value of 'usage.snapshot.virtualsize.select'.
There is another API - the ListSnapshot API that displays both, the physical as well as Virtual size and can be used to know both the sizes.

Fix Implemented:
Skipped showing the 'VirtualSize' Field for type=snapshot

[PranaliM]

After Fix: Only 1 field displayed as 'Size'

[SowjanyaPatha]

LGTM for Testing.
Created an instance.
Took a snapshot of root volume.
Executed the API command http://localhost:8080/client/api?command=listUsageRecords&startdate=2017-09-06&enddate=2017-09-06&type=9 it is showing Physical size when 'usage.snapshot.virtualsize.select' is false.
Changed the 'usage.snapshot.virtualsize.select' to true and took another snapshot and executed the API Command http://localhost:8080/client/api?command=listUsageRecords&startdate=2017-09-06&enddate=2017-09-06&type=9 it is showing the virtual size.

[yvsubhash]

LGTM for code

[PranaliM]

tag:mergeready

[rohityadavcloud]

@blueorangutan package

[rohityadavcloud]

@PranaliM fix indentation

[PranaliM]

@rhtyd - Fixed indentation

[rohityadavcloud]

@blueorangutan package

[blueorangutan]

@rhtyd a Jenkins job has been kicked to build packages. I'll keep you posted as I make progress.

[blueorangutan]

Packaging result: ✔centos6 ✔centos7 ✔debian. JID-1102

[rohityadavcloud]

@blueorangutan package

[blueorangutan]

@rhtyd a Jenkins job has been kicked to build packages. I'll keep you posted as I make progress.

[blueorangutan]

Packaging result: ✔centos6 ✔centos7 ✔debian. JID-1127

[rohityadavcloud]

@blueorangutan package

[blueorangutan]

@rhtyd a Jenkins job has been kicked to build packages. I'll keep you posted as I make progress.

[blueorangutan]

Packaging result: ✔centos6 ✔centos7 ✔debian. JID-1139

[rohityadavcloud]

@blueorangutan test

[blueorangutan]

@rhtyd a Trillian-Jenkins test job (centos7 mgmt + kvm-centos7) has been kicked to run smoke tests

[blueorangutan]

Trillian test result (tid-1566)
Environment: kvm-centos7 (x2), Advanced Networking with Mgmt server 7
Total time taken: 40630 seconds
Marvin logs: https://github.com/blueorangutan/acs-prs/releases/download/trillian/pr2257-t1566-kvm-centos7.zip
Intermitten failure detected: /marvin/tests/smoke/test_deploy_virtio_scsi_vm.py
Intermitten failure detected: /marvin/tests/smoke/test_privategw_acl.py
Intermitten failure detected: /marvin/tests/smoke/test_routers_network_ops.py
Intermitten failure detected: /marvin/tests/smoke/test_vpc_redundant.py
Intermitten failure detected: /marvin/tests/smoke/test_vpc_vpn.py
Test completed. 59 look OK, 3 have error(s)

Test	Result	Time (s)	Test File
test_01_vpc_remote_access_vpn	Failure	55.96	test_vpc_vpn.py
test_05_rvpc_multi_tiers	Failure	255.88	test_vpc_redundant.py
test_01_create_redundant_VPC_2tiers_4VMs_4IPs_4PF_ACL	Failure	358.66	test_vpc_redundant.py
test_04_rvpc_privategw_static_routes	Failure	356.21	test_privategw_acl.py
test_change_service_offering_for_vm_with_snapshots	Skipped	0.00	test_vm_snapshots.py
test_09_copy_delete_template	Skipped	0.02	test_templates.py
test_06_copy_template	Skipped	0.00	test_templates.py
test_static_role_account_acls	Skipped	0.02	test_staticroles.py
test_11_ss_nfs_version_on_ssvm	Skipped	0.02	test_ssvm.py
test_01_scale_vm	Skipped	0.00	test_scale_vm.py
test_01_primary_storage_iscsi	Skipped	0.11	test_primary_storage.py
test_vm_nic_adapter_vmxnet3	Skipped	0.00	test_nic_adapter_type.py
test_nested_virtualization_vmware	Skipped	0.00	test_nested_virtualization.py
test_06_copy_iso	Skipped	0.00	test_iso.py
test_list_ha_for_host_valid	Skipped	0.02	test_hostha_simulator.py
test_list_ha_for_host_invalid	Skipped	0.02	test_hostha_simulator.py
test_list_ha_for_host	Skipped	0.02	test_hostha_simulator.py
test_hostha_enable_feature_without_setting_provider	Skipped	0.02	test_hostha_simulator.py
test_hostha_enable_feature_valid	Skipped	0.02	test_hostha_simulator.py
test_hostha_disable_feature_valid	Skipped	0.02	test_hostha_simulator.py
test_hostha_configure_invalid_provider	Skipped	0.02	test_hostha_simulator.py
test_hostha_configure_default_driver	Skipped	0.02	test_hostha_simulator.py
test_ha_verify_fsm_recovering	Skipped	0.02	test_hostha_simulator.py
test_ha_verify_fsm_fenced	Skipped	0.02	test_hostha_simulator.py
test_ha_verify_fsm_degraded	Skipped	0.02	test_hostha_simulator.py
test_ha_verify_fsm_available	Skipped	0.02	test_hostha_simulator.py
test_ha_multiple_mgmt_server_ownership	Skipped	0.02	test_hostha_simulator.py
test_ha_list_providers	Skipped	0.02	test_hostha_simulator.py
test_ha_enable_feature_invalid	Skipped	0.02	test_hostha_simulator.py
test_ha_disable_feature_invalid	Skipped	0.02	test_hostha_simulator.py
test_ha_configure_enabledisable_across_clusterzones	Skipped	0.02	test_hostha_simulator.py
test_configure_ha_provider_valid	Skipped	0.02	test_hostha_simulator.py
test_configure_ha_provider_invalid	Skipped	0.02	test_hostha_simulator.py
test_deploy_vgpu_enabled_vm	Skipped	0.03	test_deploy_vgpu_enabled_vm.py
test_3d_gpu_support	Skipped	0.03	test_deploy_vgpu_enabled_vm.py