def if_block_exists(mnode, volname, blockname):
"""Check if block already exists
Args:
mnode (str): Node on which commands has to be executed
volname (str): Name of the volume.
blockname(str): block name
Returns:
bool : True if block exists. False Otherwise
"""
# Get block list for the volname
ret, out, err = block_list(mnode, volname)
if ret != 0:
g.log.error("Failed to get block list for the volume %s: %s", volname,
err)
return False
# Check if block exists for the volname
block_list_dict = g.load_json_string(out)
if blockname in block_list_dict['blocks']:
return True
else:
g.log.error("Block '%s' doesn't exists on volume %s", blockname,
volname)
return False
def match_heketi_and_gluster_block_volumes_by_prefix(gluster_pod,
heketi_block_volumes,
block_vol_prefix,
hostname=None):
"""Match block volumes from heketi and gluster. This function can't
be used for block volumes with custom prefixes
Args:
gluster_pod (podcmd | str): gluster pod class object has gluster
pod and ocp master node or gluster
pod name
heketi_block_volumes (list): list of heketi block volumes with
which gluster block volumes need to
be matched
block_vol_prefix (str): block volume prefix by which the block
volumes needs to be filtered
hostname (str): ocp master node on which oc command gets executed
"""
gluster_pod = _get_gluster_pod(gluster_pod, hostname)
gluster_vol_list = get_volume_list(gluster_pod)
gluster_vol_block_list = []
for gluster_vol in gluster_vol_list[1:]:
ret, out, err = block_list(gluster_pod, gluster_vol)
try:
if ret != 0 and json.loads(out)["RESULT"] == "FAIL":
msg = "failed to get block volume list with error: %s" % err
g.log.error(msg)
raise AssertionError(msg)
except Exception as e:
g.log.error(e)
raise
gluster_vol_block_list.extend([
block_vol.replace(block_vol_prefix, "")
for block_vol in json.loads(out)["blocks"]
if block_vol.startswith(block_vol_prefix)
])
if cmp(sorted(gluster_vol_block_list), heketi_block_volumes) != 0:
err_msg = "Gluster and Heketi Block volume list match failed"
err_msg += "\nGluster Volumes: %s, " % gluster_vol_block_list
err_msg += "\nBlock volumes %s" % heketi_block_volumes
err_msg += "\nDifference: %s" % (set(gluster_vol_block_list)
^ set(heketi_block_volumes))
raise AssertionError(err_msg)
def match_heketi_and_gluster_block_volumes_by_prefix(
heketi_block_volumes, block_vol_prefix):
"""Match block volumes from heketi and gluster. This function can't
be used for block volumes with custom prefixes
Args:
heketi_block_volumes (list): list of heketi block volumes with
which gluster block volumes need to
be matched
block_vol_prefix (str): block volume prefix by which the block
volumes needs to be filtered
"""
gluster_vol_list = get_volume_list("auto_get_gluster_endpoint")
gluster_vol_block_list = []
for gluster_vol in gluster_vol_list[1:]:
ret, out, err = block_list("auto_get_gluster_endpoint", gluster_vol)
try:
if ret != 0 and json.loads(out)["RESULT"] == "FAIL":
msg = "failed to get block volume list with error: %s" % err
g.log.error(msg)
raise AssertionError(msg)
except Exception as e:
g.log.error(e)
raise
gluster_vol_block_list.extend([
block_vol.replace(block_vol_prefix, "")
for block_vol in json.loads(out)["blocks"]
if block_vol.startswith(block_vol_prefix)
])
vol_difference = set(gluster_vol_block_list) ^ set(heketi_block_volumes)
if vol_difference:
err_msg = "Gluster and Heketi Block volume list match failed"
err_msg += "\nGluster Volumes: %s, " % gluster_vol_block_list
err_msg += "\nBlock volumes %s" % heketi_block_volumes
err_msg += "\nDifference: %s" % vol_difference
raise AssertionError(err_msg)
def match_heketi_and_gluster_block_volumes_by_prefix(
heketi_block_volumes, block_vol_prefix):
"""Match block volumes from heketi and gluster. This function can't
be used for block volumes with custom prefixes
Args:
heketi_block_volumes (list): list of heketi block volumes with
which gluster block volumes need to
be matched
block_vol_prefix (str): block volume prefix by which the block
volumes needs to be filtered
"""
gluster_vol_list = get_volume_list("auto_get_gluster_endpoint")
gluster_vol_block_list = []
for gluster_vol in gluster_vol_list[1:]:
ret, out, err = block_list("auto_get_gluster_endpoint", gluster_vol)
try:
if ret != 0 and json.loads(out)["RESULT"] == "FAIL":
msg = "failed to get block volume list with error: %s" % err
g.log.error(msg)
raise AssertionError(msg)
except Exception as e:
g.log.error(e)
raise
gluster_vol_block_list.extend([
block_vol.replace(block_vol_prefix, "")
for block_vol in json.loads(out)["blocks"]
if block_vol.startswith(block_vol_prefix)
])
if cmp(sorted(gluster_vol_block_list), heketi_block_volumes) != 0:
err_msg = "Gluster and Heketi Block volume list match failed"
err_msg += "\nGluster Volumes: %s, " % gluster_vol_block_list
err_msg += "\nBlock volumes %s" % heketi_block_volumes
err_msg += "\nDifference: %s" % (set(gluster_vol_block_list) ^
set(heketi_block_volumes))
raise AssertionError(err_msg)
def get_block_list(mnode, volname):
""" Get list of all blocks for the volume
Args:
mnode (str): Node on which commands has to be executed
volname (str): Name of the volume.
Returns:
list of block names if successful in getting block list, None if
block list command errors
"""
# get block list for the volname
ret, out, err = block_list(mnode, volname)
if ret != 0:
g.log.error("Failed to get block list for the volume %s: %s", volname,
err)
return None
block_list_dict = g.load_json_string(out)
blocknames = block_list_dict.get('blocks', None)
if blocknames is None:
g.log.error("No blocks present on volume %s", volname)
return blocknames