trivial: Final cleanup

Remove references to the feature from various comments scattered
throughout the code.

Change-Id: Ic353a2489389c557859c249218eaf6060974e1a9
Signed-off-by: Stephen Finucane <[email protected]>

Author: stephenfin

api-ref/source/servers-admin-action.inc

@@ -179,8 +179,7 @@ Resets networking on a server.
 
 .. note::
 
-    Only the XenServer driver implements this feature and only if the guest
-    has the XenAPI agent in the targeted server.
+    No longer supported by any in-tree virt driver.
 
 Specify the ``resetNetwork`` action in the request body.
 

nova/api/openstack/compute/agents.py

@@ -37,7 +37,6 @@ class AgentController(wsgi.Controller):
 
     You can find the design of agent update in this link:
     http://wiki.openstack.org/AgentUpdate
-    and find the code in nova.virt.xenapi.vmops.VMOps._boot_new_instance.
     In this design We need update agent in guest from host, so we need
     some interfaces to update the agent info in host.
 

nova/compute/manager.py

@@ -8440,8 +8440,8 @@ def _live_migration_cleanup_flags(self, migrate_data, migr_ctxt=None):
         """
         # NOTE(pkoniszewski): block migration specific params are set inside
         # migrate_data objects for drivers that expose block live migration
-        # information (i.e. Libvirt, Xenapi and HyperV). For other drivers
-        # cleanup is not needed.
+        # information (i.e. Libvirt, HyperV). For other drivers cleanup is not
+        # needed.
         do_cleanup = False
         destroy_disks = False
         if isinstance(migrate_data, migrate_data_obj.LibvirtLiveMigrateData):

nova/conf/netconf.py

@@ -68,8 +68,7 @@
 
 * String with hostname, FQDN or IP address. Default is hostname of this host.
 """),
-    # TODO(sfinucan): This option is tied into the XenAPI, VMWare and Libvirt
-    # drivers.
+    # TODO(sfinucan): This option is tied into the VMWare and Libvirt drivers.
     # We should remove this dependency by either adding a new opt for each
     # driver or simply removing the offending code. Until then we cannot
     # deprecate this option.
@@ -78,10 +77,10 @@
         help="""
 This option determines whether the network setup information is injected into
 the VM before it is booted. While it was originally designed to be used only
-by nova-network, it is also used by the vmware and xenapi virt drivers to
-control whether network information is injected into a VM. The libvirt virt
-driver also uses it when we use config_drive to configure network to control
-whether network information is injected into a VM.
+by nova-network, it is also used by the vmware virt driver to control whether
+network information is injected into a VM. The libvirt virt driver also uses it
+when we use config_drive to configure network to control whether network
+information is injected into a VM.
 """),
 ]
 

nova/image/glance.py

@@ -597,7 +597,7 @@ def _get_image_create_disk_format_default(self, context):
         """
         # These preferred disk formats are in order:
         # 1. we want qcow2 if possible (at least for backward compat)
-        # 2. vhd for xenapi and hyperv
+        # 2. vhd for hyperv
         # 3. vmdk for vmware
         # 4. raw should be universally accepted
         preferred_disk_formats = (
@@ -1276,20 +1276,19 @@ def download(self, context, id_or_uri, data=None, dest_path=None,
         Note that because of the poor design of the
         `glance.ImageService.download` method, the function returns different
         things depending on what arguments are passed to it. If a data argument
-        is supplied but no dest_path is specified (only done in the XenAPI virt
-        driver's image.utils module) then None is returned from the method. If
-        the data argument is not specified but a destination path *is*
-        specified, then a writeable file handle to the destination path is
-        constructed in the method and the image bits written to that file, and
-        again, None is returned from the method. If no data argument is
-        supplied and no dest_path argument is supplied (VMWare and XenAPI virt
-        drivers), then the method returns an iterator to the image bits that
-        the caller uses to write to wherever location it wants. Finally, if the
-        allow_direct_url_schemes CONF option is set to something, then the
-        nova.image.download modules are used to attempt to do an SCP copy of
-        the image bits from a file location to the dest_path and None is
-        returned after retrying one or more download locations (libvirt and
-        Hyper-V virt drivers through nova.virt.images.fetch).
+        is supplied but no dest_path is specified (not currently done by any
+        caller) then None is returned from the method. If the data argument is
+        not specified but a destination path *is* specified, then a writeable
+        file handle to the destination path is constructed in the method and
+        the image bits written to that file, and again, None is returned from
+        the method. If no data argument is supplied and no dest_path argument
+        is supplied (VMWare virt driver), then the method returns an iterator
+        to the image bits that the caller uses to write to wherever location it
+        wants. Finally, if the allow_direct_url_schemes CONF option is set to
+        something, then the nova.image.download modules are used to attempt to
+        do an SCP copy of the image bits from a file location to the dest_path
+        and None is returned after retrying one or more download locations
+        (libvirt and Hyper-V virt drivers through nova.virt.images.fetch).
 
         I think the above points to just how hacky/wacky all of this code is,
         and the reason it needs to be cleaned up and standardized across the

nova/objects/fields.py

@@ -382,8 +382,7 @@ class HVType(BaseNovaEnum):
     Provide the standard names for all known guest virtualization
     types. This is not to be confused with the Nova hypervisor driver
     types, since one driver may support multiple virtualization types
-    and one virtualization type (eg 'xen') may be supported by multiple
-    drivers ('XenAPI' or  'Libvirt-Xen').
+    and one virtualization type may be supported by multiple drivers.
     """
 
     BAREMETAL = 'baremetal'

nova/tests/unit/test_hacking.py

@@ -57,11 +57,11 @@ def test_virt_driver_imports(self):
 
         self.assertEqual(expect, checks.import_no_virt_driver_import_deps(
             "from nova.virt.libvirt import utils as libvirt_utils",
-            "./nova/virt/xenapi/driver.py"))
+            "./nova/virt/hyperv/driver.py"))
 
         self.assertEqual(expect, checks.import_no_virt_driver_import_deps(
             "import nova.virt.libvirt.utils as libvirt_utils",
-            "./nova/virt/xenapi/driver.py"))
+            "./nova/virt/hyperv/driver.py"))
 
         self.assertIsNone(checks.import_no_virt_driver_import_deps(
             "from nova.virt.libvirt import utils as libvirt_utils",
@@ -71,7 +71,7 @@ def test_virt_driver_config_vars(self):
         self.assertIsInstance(checks.import_no_virt_driver_config_deps(
             "CONF.import_opt('volume_drivers', "
             "'nova.virt.libvirt.driver', group='libvirt')",
-            "./nova/virt/xenapi/driver.py"), tuple)
+            "./nova/virt/hyperv/driver.py"), tuple)
 
         self.assertIsNone(checks.import_no_virt_driver_config_deps(
             "CONF.import_opt('volume_drivers', "

nova/virt/driver.py

@@ -138,8 +138,8 @@ class ComputeDriver(object):
     """Base class for compute drivers.
 
     The interface to this class talks in terms of 'instances' (Amazon EC2 and
-    internal Nova terminology), by which we mean 'running virtual machine'
-    (XenAPI terminology) or domain (Xen or libvirt terminology).
+    internal Nova terminology), by which we mean 'running virtual machine' or
+    domain (libvirt terminology).
 
     An instance has an ID, which is the identifier chosen by Nova to represent
     the instance further up the stack.  This is unfortunately also called a
@@ -1526,10 +1526,9 @@ def block_stats(self, instance, disk_id):
 
         All counters are long integers.
 
-        This method is optional.  On some platforms (e.g. XenAPI) performance
-        statistics can be retrieved directly in aggregate form, without Nova
-        having to do the aggregation.  On those platforms, this method is
-        unused.
+        This method is optional.  On some platforms performance statistics can
+        be retrieved directly in aggregate form, without Nova having to do the
+        aggregation.  On those platforms, this method is unused.
 
         Note that this function takes an instance ID.
 

nova/virt/libvirt/driver.py

@@ -2624,7 +2624,6 @@ def _can_set_admin_password(self, image_meta):
         elif not CONF.libvirt.virt_type == 'parallels':
             raise exception.SetAdminPasswdNotSupported()
 
-    # TODO(melwitt): Combine this with the similar xenapi code at some point.
     def _save_instance_password_if_sshkey_present(self, instance, new_pass):
         sshkey = instance.key_data if 'key_data' in instance else None
         if sshkey and sshkey.startswith("ssh-rsa"):

nova/virt/powervm/disk/driver.py

@@ -40,8 +40,6 @@ class IterableToFileAdapter(object):
 
     The Glance client returns an iterable, but PowerVM requires a file.  This
     is the adapter between the two.
-
-    Taken from xenapi/image/apis.py
     """
 
     def __init__(self, iterable):