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Viewing changes to src/maasserver/models/tests/test_bootresource.py

  • Committer: MAAS Lander
  • Author(s): Lee Trager
  • Date: 2016-10-06 17:34:26 UTC
  • mfrom: (5429.4.5 hwe_rolling)
  • Revision ID: maas_lander-20161006173426-fap6rsnm9czideia
[r=blake-rouse][bug=][author=ltrager] Add support for hwe-rolling kernels

hwe-rolling kernels are metapackages which depend on the latest kernel available. Instead of duplicating the kernels in the stream lp:maas-images will determine if an already published kernel is a dependency of a rolling kernel and set the 'rolling' field to True. This MP stores that field in the BootResource table. When listing supported kernels the region appends the hwe-rolling kernels if one of the supported kernels has the rolling field set true. The rack now creates hard links for hwe-rolling kernels if the 'rolling' field is set true. This allows grub to show its booting a rolling kernel even though it didn't need to download a second set of files.

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src/maasserver/models/tests/test_bootresource.py
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            "name": "ubuntu/trusty",
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            "arch": "amd64",
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            "subarch": "generic",
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            "kernels": ["hwe-t", "hwe-u", "hwe-v"],
 
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            "kernels": ["hwe-t", "hwe-u", "hwe-v", "hwe-rolling"],
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            }),
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        ("ubuntu/vivid", {
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            "name": "ubuntu/vivid",
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            "arch": "i386",
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            "subarch": "generic",
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            "kernels": ["hwe-v"],
 
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            "kernels": ["hwe-v", "hwe-rolling"],
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            }),
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        ("ubuntu/precise", {
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            "name": "ubuntu/precise",
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            "arch": "armfh",
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            "subarch": "generic",
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            "kernels": ["hwe-p", "hwe-t", "hwe-v"],
 
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            "kernels": ["hwe-p", "hwe-t", "hwe-v", "hwe-rolling"],
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            }),
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        ("ubuntu/wily", {
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            "name": "ubuntu/wily",
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            "name": "ubuntu/xenial",
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            "arch": "amd64",
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            "subarch": "generic",
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            "kernels": ["hwe-16.04", "hwe-16.04-lowlatency"],
 
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            "kernels": [
 
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                "hwe-16.04", "hwe-16.04-lowlatency", "hwe-rolling",
 
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                "hwe-rolling-lowlatency"],
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            }),
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        )
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                    generic_kernels.append(i)
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                factory.make_usable_boot_resource(
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                    name=self.name, rtype=BOOT_RESOURCE_TYPE.SYNCED,
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                    architecture="%s/%s" % (self.arch, i), kflavor=kflavor)
 
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                    architecture="%s/%s" % (self.arch, i), kflavor=kflavor,
 
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                    rolling=True)
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                factory.make_incomplete_boot_resource(
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                    name=self.name, rtype=BOOT_RESOURCE_TYPE.SYNCED,
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                    architecture="%s/%s" % (
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            generic_kernels = self.kernels
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            factory.make_usable_boot_resource(
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                name=self.name, rtype=BOOT_RESOURCE_TYPE.SYNCED,
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                architecture="%s/%s" % (self.arch, self.subarch))
 
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                architecture="%s/%s" % (self.arch, self.subarch), rolling=True)
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        self.assertEqual(
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            sorted(self.kernels),
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            sorted(BootResource.objects.get_usable_hwe_kernels(
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            "linux-image-generic-lts-trusty",
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            BootResource.objects.get_kpackage_for_node(node))
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    def test__returns_hwe_rolling(self):
 
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        node = factory.make_Node()
 
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        for hwe_kernel, kpackage in (
 
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                ['hwe-rolling', 'linux-generic-hwe-rolling'],
 
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                ['hwe-rolling-lowlatency', 'linux-lowlatency-hwe-rolling'],
 
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                ['hwe-rolling-edge', 'linux-generic-hwe-rolling-edge'],
 
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                [
 
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                    'hwe-rolling-lowlatency-edge',
 
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                    'linux-lowlatency-hwe-rolling-edge'],):
 
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            node.hwe_kernel = hwe_kernel
 
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            self.assertEqual(
 
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                kpackage, BootResource.objects.get_kpackage_for_node(node))
 
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    def test__returns_none(self):
 
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        node = factory.make_Node()
 
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        self.assertIsNone(BootResource.objects.get_kpackage_for_node(node))
 
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class TestBootResource(MAASServerTestCase):
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    """Tests for the `BootResource` model."""