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Check media before adding new/existing volume

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This commit is contained in:
catborise 2019-02-14 16:49:12 +03:00
parent ebf251ff5e
commit 2dc83f39a2
2 changed files with 12 additions and 5 deletions
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13
instances/views.py
View file

@ -195,6 +195,8 @@ def instance(request, compute_id, vname):
return msg
def get_new_disk_dev(media, disks, bus):
existing_disk_devs = []
existing_media_devs = []
if bus == "virtio":
dev_base = "vd"
elif bus == "ide":
@ -203,9 +205,14 @@ def instance(request, compute_id, vname):
dev_base = "fd"
else:
dev_base = "sd"
if disks:
existing_disk_devs = [disk['dev'] for disk in disks]
# cd-rom bus could be virtio/sata, because of that we should check it also
existing_media_devs = [disk['dev'] for disk in media]
if media:
existing_media_devs = [m['dev'] for m in media]
for l in string.lowercase:
dev = dev_base + l
if dev not in existing_disk_devs and dev not in existing_media_devs:
@ -465,7 +472,7 @@ def instance(request, compute_id, vname):
meta_prealloc = request.POST.get('meta_prealloc', False)
bus = request.POST.get('bus', default_bus)
cache = request.POST.get('cache', default_cache)
target = get_new_disk_dev(None, disks, bus)
target = get_new_disk_dev(media, disks, bus)
path = connCreate.create_volume(storage, name, size, format, meta_prealloc, default_owner)
conn.attach_disk(path, target, subdriver=format, cache=cache, targetbus=bus)
@ -487,7 +494,7 @@ def instance(request, compute_id, vname):
format = connCreate.get_volume_type(name)
path = connCreate.get_target_path()
target = get_new_disk_dev(None, disks, bus)
target = get_new_disk_dev(media, disks, bus)
source = path + "/" + name;
conn.attach_disk(source, target, subdriver=format, cache=cache, targetbus=bus)

2
storages/views.py
View file

@ -222,7 +222,7 @@ def get_volumes(request, compute_id, pool):
compute.type,
pool)
conn.refresh()
except libvirtError as liberr:
except libvirtError:
pass
data['vols'] = sorted(conn.get_volumes())
return HttpResponse(json.dumps(data))