def is_snapshot_on_nfs(apiclient, dbconn, config, zoneid, snapshotid):
"""
Checks whether a snapshot with id (not UUID) `snapshotid` is present on the nfs storage
@param apiclient: api client connection
@param @dbconn: connection to the cloudstack db
@param config: marvin configuration file
@param zoneid: uuid of the zone on which the secondary nfs storage pool is mounted
@param snapshotid: uuid of the snapshot
@return: True if snapshot is found, False otherwise
"""
# snapshot extension to be appended to the snapshot path obtained from db
snapshot_extensions = {"vmware": ".ovf",
"kvm": "",
"xenserver": ".vhd",
"simulator":""}
qresultset = dbconn.execute(
"select id from snapshots where uuid = '%s';" \
% str(snapshotid)
)
if len(qresultset) == 0:
raise Exception(
"No snapshot found in cloudstack with id %s" % snapshotid)
snapshotid = qresultset[0][0]
qresultset = dbconn.execute(
"select install_path,store_id from snapshot_store_ref where snapshot_id='%s' and store_role='Image';" % snapshotid
)
assert isinstance(qresultset, list), "Invalid db query response for snapshot %s" % snapshotid
if len(qresultset) == 0:
#Snapshot does not exist
return False
from base import ImageStore
#pass store_id to get the exact storage pool where snapshot is stored
secondaryStores = ImageStore.list(apiclient, zoneid=zoneid, id=int(qresultset[0][1]))
assert isinstance(secondaryStores, list), "Not a valid response for listImageStores"
assert len(secondaryStores) != 0, "No image stores found in zone %s" % zoneid
secondaryStore = secondaryStores[0]
if str(secondaryStore.providername).lower() != "nfs":
raise Exception(
"is_snapshot_on_nfs works only against nfs secondary storage. found %s" % str(secondaryStore.providername))
hypervisor = get_hypervisor_type(apiclient)
# append snapshot extension based on hypervisor, to the snapshot path
snapshotPath = str(qresultset[0][0]) + snapshot_extensions[str(hypervisor).lower()]
nfsurl = secondaryStore.url
from urllib2 import urlparse
parse_url = urlparse.urlsplit(nfsurl, scheme='nfs')
host, path = str(parse_url.netloc), str(parse_url.path)
if not config.mgtSvr:
raise Exception("Your marvin configuration does not contain mgmt server credentials")
mgtSvr, user, passwd = config.mgtSvr[0].mgtSvrIp, config.mgtSvr[0].user, config.mgtSvr[0].passwd
try:
ssh_client = SshClient(
mgtSvr,
22,
user,
passwd
)
pathSeparator = "" #used to form host:dir format
if not host.endswith(':'):
pathSeparator= ":"
cmds = [
"mkdir -p %s /mnt/tmp",
"mount -t %s %s%s%s /mnt/tmp" % (
'nfs',
host,
pathSeparator,
path,
),
"test -f %s && echo 'snapshot exists'" % (
os.path.join("/mnt/tmp", snapshotPath)
),
]
for c in cmds:
result = ssh_client.execute(c)
# Unmount the Sec Storage
cmds = [
"cd",
"umount /mnt/tmp",
]
for c in cmds:
ssh_client.execute(c)
except Exception as e:
raise Exception("SSH failed for management server: %s - %s" %
(config.mgtSvr[0].mgtSvrIp, e))
return 'snapshot exists' in result
def is_snapshot_on_nfs(apiclient, dbconn, config, zoneid, snapshotid):
"""
Checks whether a snapshot with id (not UUID) `snapshotid` is present on the nfs storage
@param apiclient: api client connection
@param @dbconn: connection to the cloudstack db
@param config: marvin configuration file
@param zoneid: uuid of the zone on which the secondary nfs storage pool is mounted
@param snapshotid: uuid of the snapshot
@return: True if snapshot is found, False otherwise
"""
from base import ImageStore, Snapshot
secondaryStores = ImageStore.list(apiclient, zoneid=zoneid)
assert isinstance(secondaryStores, list), "Not a valid response for listImageStores"
assert len(secondaryStores) != 0, "No image stores found in zone %s" % zoneid
secondaryStore = secondaryStores[0]
if str(secondaryStore.providername).lower() != "nfs":
raise Exception(
"is_snapshot_on_nfs works only against nfs secondary storage. found %s" % str(secondaryStore.providername))
qresultset = dbconn.execute(
"select id from snapshots where uuid = '%s';" \
% str(snapshotid)
)
if len(qresultset) == 0:
raise Exception(
"No snapshot found in cloudstack with id %s" % snapshotid)
snapshotid = qresultset[0][0]
qresultset = dbconn.execute(
"select install_path from snapshot_store_ref where snapshot_id='%s' and store_role='Image';" % snapshotid
)
assert isinstance(qresultset, list), "Invalid db query response for snapshot %s" % snapshotid
assert len(qresultset) != 0, "No such snapshot %s found in the cloudstack db" % snapshotid
snapshotPath = qresultset[0][0]
nfsurl = secondaryStore.url
# parse_url = ['nfs:', '', '192.168.100.21', 'export', 'test']
from urllib2 import urlparse
parse_url = urlparse.urlsplit(nfsurl, scheme='nfs')
host, path = parse_url.netloc, parse_url.path
if not config.mgtSvr:
raise Exception("Your marvin configuration does not contain mgmt server credentials")
host, user, passwd = config.mgtSvr[0].mgtSvrIp, config.mgtSvr[0].user, config.mgtSvr[0].passwd
try:
ssh_client = remoteSSHClient(
host,
22,
user,
passwd,
)
cmds = [
"mkdir -p %s /mnt/tmp",
"mount -t %s %s%s /mnt/tmp" % (
'nfs',
host,
path,
),
"test -f %s && echo 'snapshot exists'" % (
os.path.join("/mnt/tmp", snapshotPath)
),
]
for c in cmds:
result = ssh_client.execute(c)
# Unmount the Sec Storage
cmds = [
"cd",
"umount /mnt/tmp",
]
for c in cmds:
ssh_client.execute(c)
except Exception as e:
raise Exception("SSH failed for management server: %s - %s" %
(config[0].mgtSvrIp, e))
return 'snapshot exists' in result
def is_snapshot_on_nfs(apiclient, dbconn, config, zoneid, snapshotid):
"""
Checks whether a snapshot with id
(not UUID) `snapshotid` is present on the nfs storage
@param apiclient: api client connection
@param @dbconn: connection to the cloudstack db
@param config: marvin configuration file
@param zoneid: uuid of the zone on which the
secondary nfs storage pool is mounted
@param snapshotid: uuid of the snapshot
@return: True if snapshot is found, False otherwise
"""
# snapshot extension to be appended to the snapshot path obtained from db
snapshot_extensions = {"vmware": ".ovf",
"kvm": "",
"xenserver": ".vhd",
"simulator": ""}
qresultset = dbconn.execute(
"select id from snapshots where uuid = '%s';"
% str(snapshotid)
)
if len(qresultset) == 0:
raise Exception(
"No snapshot found in cloudstack with id %s" % snapshotid)
snapshotid = qresultset[0][0]
qresultset = dbconn.execute(
"select install_path,store_id from snapshot_store_ref"
" where snapshot_id='%s' and "
"store_role='Image';" % snapshotid
)
assert isinstance(
qresultset, list), "Invalid db query " \
"response for snapshot " \
"%s" % snapshotid
if len(qresultset) == 0:
# Snapshot does not exist
return False
from base import ImageStore
# pass store_id to get the exact storage pool where snapshot is stored
secondaryStores = ImageStore.list(
apiclient,
zoneid=zoneid,
id=int(
qresultset[0][1]))
assert isinstance(
secondaryStores, list), "Not a valid response for listImageStores"
assert len(
secondaryStores) != 0, "No image stores found in zone %s" % zoneid
secondaryStore = secondaryStores[0]
if str(secondaryStore.providername).lower() != "nfs":
raise Exception(
"is_snapshot_on_nfs works only "
"against nfs secondary storage."
" found %s" % str(secondaryStore.providername))
hypervisor = get_hypervisor_type(apiclient)
# append snapshot extension based on hypervisor, to the snapshot path
snapshotPath = str(qresultset[0][0]) + \
snapshot_extensions[str(hypervisor).lower()]
nfsurl = secondaryStore.url
from urllib2 import urlparse
parse_url = urlparse.urlsplit(nfsurl, scheme='nfs')
host, path = str(parse_url.netloc), str(parse_url.path)
if not config.mgtSvr:
raise Exception(
"Your marvin configuration does "
"not contain mgmt server credentials")
mgtSvr, user, passwd = config.mgtSvr[
0].mgtSvrIp, config.mgtSvr[0].user, config.mgtSvr[0].passwd
try:
ssh_client = SshClient(
mgtSvr,
22,
user,
passwd
)
pathSeparator = "" #used to form host:dir format
if not host.endswith(':'):
pathSeparator= ":"
cmds = [
"mkdir -p %s /mnt/tmp",
"mount -t %s %s%s%s /mnt/tmp" % (
'nfs',
host,
pathSeparator,
path,
),
"test -f %s && echo 'snapshot exists'" % (
os.path.join("/mnt/tmp", snapshotPath)
),
]
for c in cmds:
result = ssh_client.execute(c)
# Unmount the Sec Storage
cmds = [
"cd",
"umount /mnt/tmp",
]
for c in cmds:
ssh_client.execute(c)
except Exception as e:
raise Exception("SSH failed for management server: %s - %s" %
(config.mgtSvr[0].mgtSvrIp, e))
return 'snapshot exists' in result
def is_snapshot_on_nfs(apiclient, dbconn, config, zoneid, snapshotid):
"""
Checks whether a snapshot with id (not UUID) `snapshotid` is present on the nfs storage
@param apiclient: api client connection
@param @dbconn: connection to the cloudstack db
@param config: marvin configuration file
@param zoneid: uuid of the zone on which the secondary nfs storage pool is mounted
@param snapshotid: uuid of the snapshot
@return: True if snapshot is found, False otherwise
"""
from base import ImageStore, Snapshot
secondaryStores = ImageStore.list(apiclient, zoneid=zoneid)
assert isinstance(secondaryStores,
list), "Not a valid response for listImageStores"
assert len(
secondaryStores) != 0, "No image stores found in zone %s" % zoneid
secondaryStore = secondaryStores[0]
if str(secondaryStore.providername).lower() != "nfs":
raise Exception(
"is_snapshot_on_nfs works only against nfs secondary storage. found %s"
% str(secondaryStore.providername))
qresultset = dbconn.execute(
"select id from snapshots where uuid = '%s';" \
% str(snapshotid)
)
if len(qresultset) == 0:
raise Exception("No snapshot found in cloudstack with id %s" %
snapshotid)
snapshotid = qresultset[0][0]
qresultset = dbconn.execute(
"select install_path from snapshot_store_ref where snapshot_id='%s' and store_role='Image';"
% snapshotid)
assert isinstance(
qresultset,
list), "Invalid db query response for snapshot %s" % snapshotid
assert len(
qresultset
) != 0, "No such snapshot %s found in the cloudstack db" % snapshotid
snapshotPath = qresultset[0][0]
nfsurl = secondaryStore.url
# parse_url = ['nfs:', '', '192.168.100.21', 'export', 'test']
from urllib2 import urlparse
parse_url = urlparse.urlsplit(nfsurl, scheme='nfs')
host, path = parse_url.netloc, parse_url.path
if not config.mgtSvr:
raise Exception(
"Your marvin configuration does not contain mgmt server credentials"
)
host, user, passwd = config.mgtSvr[0].mgtSvrIp, config.mgtSvr[
0].user, config.mgtSvr[0].passwd
try:
ssh_client = remoteSSHClient(
host,
22,
user,
passwd,
)
cmds = [
"mkdir -p %s /mnt/tmp",
"mount -t %s %s:%s /mnt/tmp" % (
'nfs',
host,
path,
),
"test -f %s && echo 'snapshot exists'" %
(os.path.join("/mnt/tmp", snapshotPath)),
]
for c in cmds:
result = ssh_client.execute(c)
# Unmount the Sec Storage
cmds = [
"cd",
"umount /mnt/tmp",
]
for c in cmds:
ssh_client.execute(c)
except Exception as e:
raise Exception("SSH failed for management server: %s - %s" %
(config[0].mgtSvrIp, e))
return 'snapshot exists' in result