def CreateVolume(self, request, context):
# TODO: volume_capabilities
if len(request.volume_capabilities) != 1:
context.abort(grpc.StatusCode.INVALID_ARGUMENT,
"Exactly one cap is supported")
volume_capability = request.volume_capabilities[0]
AccessModeEnum = csi_pb2.VolumeCapability.AccessMode.Mode
if volume_capability.access_mode.mode not in [
AccessModeEnum.SINGLE_NODE_WRITER
]:
context.abort(
grpc.StatusCode.INVALID_ARGUMENT,
f"Unsupported access mode: {AccessModeEnum.Name(volume_capability.access_mode.mode)}",
)
# FIXME: re-enable access_type after bd2fs is fixed
# access_type = volume_capability.WhichOneof("access_type")
# if access_type == "block":
# pass
# else:
# context.abort(
# grpc.StatusCode.INVALID_ARGUMENT,
# "PANIC! This should be handled by bd2fs!",
# )
MIN_SIZE = 16 * 1024 * 1024 # 16MiB: can't format xfs with smaller volumes
size = max(MIN_SIZE, request.capacity_range.required_bytes)
try:
node_name = request.accessibility_requirements.preferred[
0].segments[NODE_NAME_TOPOLOGY_KEY]
except IndexError:
context.abort(
grpc.StatusCode.INVALID_ARGUMENT,
"No preferred topology set. Is external-provisioner running in strict-topology mode?",
)
except KeyError:
context.abort(grpc.StatusCode.INVALID_ARGUMENT,
"Topology key not found... why?")
try:
init_rawfile(volume_id=request.name, size=size),
except CalledProcessError as exc:
if exc.returncode == RESOURCE_EXHAUSTED_EXIT_CODE:
context.abort(grpc.StatusCode.RESOURCE_EXHAUSTED,
"Not enough disk space")
else:
raise exc
return csi_pb2.CreateVolumeResponse(volume=csi_pb2.Volume(
volume_id=request.name,
capacity_bytes=size,
accessible_topology=[
csi_pb2.Topology(segments={NODE_NAME_TOPOLOGY_KEY: node_name})
],
))
def CreateVolume(self, request, context):
# TODO: volume_capabilities
if len(request.volume_capabilities) != 1:
context.abort(grpc.StatusCode.INVALID_ARGUMENT,
"Exactly one cap is supported")
volume_capability = request.volume_capabilities[0]
AccessModeEnum = csi_pb2.VolumeCapability.AccessMode.Mode
if volume_capability.access_mode.mode not in [
AccessModeEnum.SINGLE_NODE_WRITER
]:
context.abort(
grpc.StatusCode.INVALID_ARGUMENT,
f"Unsupported access mode: {AccessModeEnum.Name(volume_capability.access_mode.mode)}",
)
access_type = volume_capability.WhichOneof("access_type")
if access_type == "mount":
fs_type = volume_capability.mount.fs_type
if fs_type == "":
fs_type = "ext4"
elif access_type == "block":
context.abort(grpc.StatusCode.INVALID_ARGUMENT,
"Block mode not supported (yet)")
else:
context.abort(grpc.StatusCode.INVALID_ARGUMENT,
f"Unknown access type: {access_type}")
size = request.capacity_range.required_bytes
size = max(size, 10 * 1024 * 1024) # At least 10MB
try:
node_name = request.accessibility_requirements.preferred[
0].segments[NODE_NAME_TOPOLOGY_KEY]
except IndexError:
context.abort(
grpc.StatusCode.INVALID_ARGUMENT,
"No preferred topology set. Is external-provisioner running in strict-topology mode?",
)
except KeyError:
context.abort(grpc.StatusCode.INVALID_ARGUMENT,
"Topology key not found... why?")
run_on_node(
init_rawfile.as_cmd(volume_id=request.name,
size=size,
fs_type=fs_type),
node=node_name,
)
return csi_pb2.CreateVolumeResponse(volume=csi_pb2.Volume(
volume_id=request.name,
capacity_bytes=size,
accessible_topology=[
csi_pb2.Topology(segments={NODE_NAME_TOPOLOGY_KEY: node_name})
],
))
def NodeGetInfo(self, request, context):
return csi_pb2.NodeGetInfoResponse(
node_id=self.node_name,
accessible_topology=csi_pb2.Topology(
segments={NODE_NAME_TOPOLOGY_KEY: self.node_name}),
)