mirror of https://github.com/apache/cloudstack.git
33 lines
1.4 KiB
Python
33 lines
1.4 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
|
|
# or more contributor license agreements. See the NOTICE file
|
|
# distributed with this work for additional information
|
|
# regarding copyright ownership. The ASF licenses this file
|
|
# to you under the Apache License, Version 2.0 (the
|
|
# "License"); you may not use this file except in compliance
|
|
# with the License. You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing,
|
|
# software distributed under the License is distributed on an
|
|
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
|
|
# KIND, either express or implied. See the License for the
|
|
# specific language governing permissions and limitations
|
|
# under the License.
|
|
|
|
"""
|
|
CloudStack image server — HTTP server backed by NBD over Unix socket or a local file.
|
|
|
|
Transfer configs are registered/unregistered by the cloudstack-agent via a
|
|
Unix domain control socket (default: /var/run/cloudstack/image-server.sock)
|
|
and stored in-memory for the lifetime of the server process.
|
|
|
|
Supports two backends (configured per-transfer at registration time):
|
|
- nbd: proxy to an NBD server via Unix socket; supports range reads/writes
|
|
(GET/PUT/PATCH), extents, zero, flush.
|
|
- file: read/write a local qcow2/raw file; full PUT only, GET with optional
|
|
ranges, flush.
|
|
|
|
Run as a systemd service by the CreateImageTransfer CloudStack Agent Command
|
|
"""
|