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add KVM provider with virtio support
This commit is contained in:
Olivier Sallou
parent
03db9823f9
commit
f4ecac900f
8 changed files with 251 additions and 0 deletions
42
manifests/kvm-virtio.manifest.json
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42
manifests/kvm-virtio.manifest.json
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{
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"provider": "kvm",
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"bootstrapper": {
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"workspace": "/target",
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"mirror": "http://ftp.fr.debian.org/debian/",
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"virtio" : [ "virtio_pci", "virtio_blk" ]
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},
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"image": {
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"name": "debian-{system.release}-{system.architecture}-{%y}{%m}{%d}",
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"description": "Debian {system.release} {system.architecture}"
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},
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"system": {
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"release": "wheezy",
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"architecture": "amd64",
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"bootloader": "grub",
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"timezone": "UTC",
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"locale": "en_US",
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"charmap": "UTF-8"
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},
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"packages": {},
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"volume": {
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"backing": "raw",
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"partitions": {
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"type": "msdos",
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"boot": {
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"size": "32MiB",
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"filesystem": "ext2"
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},
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"root": {
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"size": "864MiB",
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"filesystem": "ext4"
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},
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"swap": {"size": "128MiB"}
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}
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},
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"plugins": {
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"root_password": {
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"enabled": true,
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"password": "test"
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}
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}
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}
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41
manifests/kvm.manifest.json
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41
manifests/kvm.manifest.json
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{
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"provider": "kvm",
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"bootstrapper": {
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"workspace": "/target",
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"mirror": "http://ftp.fr.debian.org/debian/"
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},
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"image": {
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"name": "debian-{system.release}-{system.architecture}-{%y}{%m}{%d}",
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"description": "Debian {system.release} {system.architecture}"
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},
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"system": {
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"release": "wheezy",
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"architecture": "amd64",
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"bootloader": "grub",
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"timezone": "UTC",
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"locale": "en_US",
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"charmap": "UTF-8"
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},
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"packages": {},
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"volume": {
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"backing": "raw",
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"partitions": {
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"type": "msdos",
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"boot": {
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"size": "32MiB",
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"filesystem": "ext2"
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},
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"root": {
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"size": "864MiB",
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"filesystem": "ext4"
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},
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"swap": {"size": "128MiB"}
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}
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},
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"plugins": {
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"root_password": {
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"enabled": true,
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"password": "test"
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}
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}
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}
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14
providers/kvm/README.md
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14
providers/kvm/README.md
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KVM provider
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===========
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This provider generates raw images for KVM.
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It also supports an optional virtio integration.
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Virtio
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======
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Add to bootstrapper the list of virtio modules to load, example:
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"virtio" : [ "virtio_pci", "virtio_blk" ]
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75
providers/kvm/__init__.py
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75
providers/kvm/__init__.py
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import tasks.packages
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from common.tasks import volume
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from common.tasks import loopback
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from common.tasks import partitioning
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from common.tasks import filesystem
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from common.tasks import bootstrap
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from common.tasks import security
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from common.tasks import network
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from common.tasks import initd
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from common.tasks import cleanup
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from common.tasks import workspace
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def initialize():
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pass
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def validate_manifest(data, validator, error):
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import os.path
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schema_path = os.path.normpath(os.path.join(os.path.dirname(__file__), 'manifest-schema.json'))
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validator(data, schema_path)
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if data['volume']['partitions']['type'] == 'none' and data['system']['bootloader'] != 'extlinux':
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error('Only extlinux can boot from unpartitioned disks', ['system', 'bootloader'])
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def resolve_tasks(tasklist, manifest):
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import common.task_sets
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tasklist.update(common.task_sets.base_set)
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tasklist.update(common.task_sets.volume_set)
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tasklist.update(common.task_sets.mounting_set)
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tasklist.update(common.task_sets.get_apt_set(manifest))
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tasklist.update(common.task_sets.locale_set)
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tasklist.update(common.task_sets.bootloader_set.get(manifest.system['bootloader']))
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if manifest.volume['partitions']['type'] != 'none':
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tasklist.update(common.task_sets.partitioning_set)
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tasklist.update([tasks.packages.DefaultPackages,
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loopback.Create,
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security.EnableShadowConfig,
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network.RemoveDNSInfo,
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network.ConfigureNetworkIF,
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network.RemoveHostname,
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initd.AddSSHKeyGeneration,
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initd.InstallInitScripts,
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cleanup.ClearMOTD,
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cleanup.CleanTMP,
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loopback.MoveImage,
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])
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if manifest.bootstrapper.get('tarball', False):
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tasklist.add(bootstrap.MakeTarball)
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if manifest.bootstrapper.get('virtio', []):
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from tasks import virtio
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tasklist.update([virtio.VirtIO])
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tasklist.update(common.task_sets.get_fs_specific_set(manifest.volume['partitions']))
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if 'boot' in manifest.volume['partitions']:
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tasklist.update(common.task_sets.boot_partition_set)
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def resolve_rollback_tasks(tasklist, manifest, counter_task):
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counter_task(loopback.Create, volume.Delete)
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counter_task(filesystem.CreateMountDir, filesystem.DeleteMountDir)
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counter_task(partitioning.MapPartitions, partitioning.UnmapPartitions)
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counter_task(filesystem.MountRoot, filesystem.UnmountRoot)
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counter_task(volume.Attach, volume.Detach)
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counter_task(workspace.CreateWorkspace, workspace.DeleteWorkspace)
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44
providers/kvm/manifest-schema.json
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44
providers/kvm/manifest-schema.json
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{
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"$schema": "http://json-schema.org/draft-04/schema#",
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"title": "KVM manifest",
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"type": "object",
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"properties": {
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"bootstrapper": {
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"type": "object",
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"properties": {
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"virtio": {
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"type": "array",
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"items": {
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"type": "string"
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},
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"minItems": 1
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}
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}
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},
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"system": {
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"type": "object",
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"properties": {
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"bootloader": {
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"type": "string",
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"enum": ["grub", "extlinux"]
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}
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}
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},
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"volume": {
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"type": "object",
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"properties": {
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"backing": {
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"type": "string",
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"enum": ["raw"]
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},
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"partitions": {
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"type": "object",
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"properties": {
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"type": { "enum": ["none", "msdos", "gpt"] }
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}
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}
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},
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"required": ["backing"]
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}
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}
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}
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0
providers/kvm/tasks/__init__.py
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0
providers/kvm/tasks/__init__.py
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16
providers/kvm/tasks/packages.py
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16
providers/kvm/tasks/packages.py
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from base import Task
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from common import phases
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from common.tasks import apt
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class DefaultPackages(Task):
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description = 'Adding image packages required for kvm'
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phase = phases.preparation
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predecessors = [apt.AddDefaultSources]
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@classmethod
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def run(cls, info):
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kernels = {'amd64': 'linux-image-amd64',
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'i386': 'linux-image-686', }
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info.packages.add(kernels.get(info.manifest.system['architecture']))
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info.packages.add('openssh-server')
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19
providers/kvm/tasks/virtio.py
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19
providers/kvm/tasks/virtio.py
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from base import Task
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from common import phases
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from common.tasks.packages import InstallPackages
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from common.exceptions import TaskError
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import os
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class VirtIO(Task):
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description = 'Install virtio modules'
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phase = phases.system_modification
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@classmethod
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def run(cls, info):
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from common.tools import log_call
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modules = os.path.join(info.root,'/etc/initramfs-tools/modules')
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with open(modules, "a") as modules_file:
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modules_file.write("\n");
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for module in info.manifest.bootstrapper.get('virtio', []):
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modules_file.write(module+"\n")
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