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https://issues.apache.org/jira/browse/CLOUDSTACK-9349?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15251917#comment-15251917
]
ASF GitHub Bot commented on CLOUDSTACK-9349:
--------------------------------------------
Github user jburwell commented on a diff in the pull request:
https://github.com/apache/cloudstack/pull/1500#discussion_r60582658
--- Diff: test/integration/component/test_volumes.py ---
@@ -603,7 +603,144 @@ def test_01_volume_attach_detach(self):
"Check the state of VM"
)
except Exception as e:
- self.fail("Exception occuered: %s" % e)
+ self.fail("Exception occurred: %s" % e)
+ return
+
+ @attr(tags=["advanced", "advancedns"], required_hardware="false")
+ def test_02_root_volume_attach_detach(self):
+ """Test Root Volume attach/detach to VM
+ """
+
+ # Validate the following
+ # 1. Deploy a VM
+ # 2. Verify that we are testing a supported hypervisor
+ # 3. Check for root volume
+ # 4. Stop VM
+ # 5. Detach root volume
+ # 6. Verify root volume detached
+ # 7. Attach root volume
+ # 8. Start VM
+
+ # Verify we are using a supported hypervisor
+ if (self.hypervisor.lower() == 'vmware'
+ or self.hypervisor.lower() == 'kvm'
+ or self.hypervisor.lower() == 'simulator'
+ or self.hypervisor.lower() == 'xenserver'):
+
+ try:
+ # Check for root volume
+ root_volume_response = Volume.list(
+ self.apiclient,
+ virtualmachineid=self.virtual_machine.id,
+ type='ROOT',
+ listall=True
+ )
+ self.assertNotEqual(
+ root_volume_response,
+ None,
+ "Check if root volume exists in ListVolumes"
+ )
+ self.assertEqual(
+ isinstance(root_volume_response, list),
+ True,
+ "Check list volumes response for valid list"
+ )
+ # Grab the root volume for later use
+ root_volume = root_volume_response[0]
+
+ # Stop VM
+ self.debug("Stopping the VM: %s" % self.virtual_machine.id)
+ self.virtual_machine.stop(self.apiclient)
+
+ # Ensure VM is stopped before detaching the root volume
+ time.sleep(self.services["sleep"])
+
+ vm_response = VirtualMachine.list(
+ self.apiclient,
+ id=self.virtual_machine.id,
+ )
+ vm = vm_response[0]
+ self.assertEqual(
+ vm.state,
+ 'Stopped',
+ "Check the state of VM"
+ )
+
+ # Detach root volume from VM
+ self.virtual_machine.detach_volume(
+ self.apiclient,
+ root_volume
+ )
+
+ # Verify that root disk is gone
+ no_root_volume_response = Volume.list(
+ self.apiclient,
+ virtualmachineid=self.virtual_machine.id,
+ type='ROOT',
+ listall=True
+ )
+ self.assertEqual(
+ no_root_volume_response,
+ None,
+ "Check if root volume exists in ListVolumes"
+ )
+
+ # Attach root volume to VM
+ self.virtual_machine.attach_volume(
+ self.apiclient,
+ root_volume,
+ 0
+ )
+
+ # Check for root volume
+ new_root_volume_response = Volume.list(
+ self.apiclient,
+ virtualmachineid=self.virtual_machine.id,
+ type='ROOT',
+ listall=True
+ )
+ self.assertNotEqual(
+ new_root_volume_response,
+ None,
+ "Check if root volume exists in ListVolumes"
+ )
+ self.assertEqual(
+ isinstance(new_root_volume_response, list),
+ True,
+ "Check list volumes response for valid list"
+ )
+
+ # Start VM
+ self.virtual_machine.start(self.apiclient)
+ # Sleep to ensure that VM is in ready state
+ time.sleep(self.services["sleep"])
--- End diff --
At a minimum, there should be an assert that the VM is ready. If some
reason it has not become ready, failing fast will make diagnosing the failure
much easier.
Also, if you do need to wait, please consider the new ``wait_until``
function that was recently added to Marvin utils which provides a more robust
mechanism for waiting for a condition before proceeding with a test.
> Unable to detach root volume when using Hypervisor Type KVM
> -----------------------------------------------------------
>
> Key: CLOUDSTACK-9349
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-9349
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Volumes
> Affects Versions: 4.5.1, 4.6.2, 4.7.1, 4.8.0, 4.9.0
> Environment: Centos 7
> Reporter: Simon Weller
> Priority: Minor
> Fix For: 4.7.2
>
>
> Back in 4.5, support was added in CLOUDSTACK-6284 for detaching root volumes.
> The original support was meant to work with Xen, VMware and KVM.
> After chatting with fuflo in the Cloudstack irc channel, it was pointed out
> that a constraint was not correctly modified in VolumeApiServiceImpl.java to
> allow the detach to occur when vm.getHypervisorType() == HypervisorType.KVM.
> This is a very useful feature, as it allows us to simulate a snapshot revert
> with Ceph by using createVolume sourced from a snapshot, then detaching and
> reattaching the root volume (new root volume needs to be attached as
> device=0).
> I'm going to propose a PR for this shortly
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