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added fallback on dd if fallocate is not in the $PATH (#716)

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Signed-off-by: Tullio Sebastiani <tsebasti@redhat.com>
This commit is contained in:
Tullio Sebastiani
2024-10-10 11:15:03 +02:00
committed by GitHub
parent a36b0c76b2
commit 4b869bad83
1 changed files with 30 additions and 3 deletions
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33
krkn/scenario_plugins/pvc/pvc_scenario_plugin.py
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@@ -176,10 +176,37 @@ class PvcScenarioPlugin(AbstractScenarioPlugin):
start_time = int(time.time())
# Create temp file in the PVC
full_path = "%s/%s" % (str(mount_path), str(file_name))
command = "fallocate -l $((%s*1024)) %s" % (
str(file_size_kb),
str(full_path),
fallocate = lib_telemetry.get_lib_kubernetes().exec_cmd_in_pod(
["command -v fallocate"],
pod_name,
namespace,
container_name,
)
dd = lib_telemetry.get_lib_kubernetes().exec_cmd_in_pod(
["command -v dd"],
pod_name,
namespace,
container_name,
)
if fallocate:
command = "fallocate -l $((%s*1024)) %s" % (
str(file_size_kb),
str(full_path),
)
elif dd is not None:
logging.warning(
"fallocate not found, using dd, it may take longer based on the amount of data, please wait..."
)
command = f"dd if=/dev/urandom of={str(full_path)} bs=1024 count={str(file_size_kb)} oflag=direct"
else:
logging.error(
"failed to locate required binaries fallocate or dd to execute the scenario"
)
return 1
logging.debug("Create temp file in the PVC command:\n %s" % command)
lib_telemetry.get_lib_kubernetes().exec_cmd_in_pod(
[command],