YueGuobin ce90b2b92c fix(docker): handle container name conflict automatically
When a Docker container with the same name already exists (e.g., from a
   previous crashed GNS3 session), Docker returns a 409 Conflict error
   when trying to create a new container with that name. This causes the
   project open operation to fail.

   This fix adds automatic cleanup of stale containers when encountering
   a name conflict:
   - Added DockerHttp409Error exception class
   - Updated http_query to detect 409 status codes
   - Modified create() to remove conflicting containers and retry

   Fixes the issue where opening a project fails with:
   "Docker has returned an error: 409 Conflict. The container name
   '/GNS3.xxx' is already in use by container 'xxx'"
2026-02-27 23:35:11 +08:00

38 lines
954 B
Python

#
# Copyright (C) 2015 GNS3 Technologies Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
Custom exceptions for the Docker module.
"""
from ..error import NodeError
class DockerError(NodeError):
pass
class DockerHttp304Error(DockerError):
pass
class DockerHttp404Error(DockerError):
pass
class DockerHttp409Error(DockerError):
pass