GNS3 server 3.0.0 dev14 crash on startup

[cristian-ciobanu]

I cloned the the latest 3.0 branch and I installed GNS3 server using the provided steps:

git clone https://github.com/GNS3/gns3-server
cd gns3-server
git checkout 3.0
python3 -m venv venv-gns3server
source venv-gns3server/bin/activate
python3 -m pip install .
python3 -m gns3server

Environment: Linux (ArchLinux)
Python: version 3.12.7
GNS3 server 3.0 default configuration

When I start manually the GNS3 server using the python3 -m gns3server command it crashes with the following error

`❯ python3 -m gns3server
2024-12-17 22:43:32 WARNING gns3server.config:250 No configuration file could be found or read
2024-12-17 22:43:32 INFO gns3server.server:250 GNS3 server version 3.0.0.dev14+0dd53d31
2024-12-17 22:43:32 INFO gns3server.server:252 Copyright (c) 2007-2024 GNS3 Technologies Inc.
2024-12-17 22:43:32 WARNING gns3server.server:264 Compute authentication is enabled with username 'gns3' and a randomly generated password. Please set a password in the config file if this compute is to be used by an external controller
2024-12-17 22:43:32 INFO gns3server.server:274 Running with Python 3.12.7 and has PID 9003
2024-12-17 22:43:32 INFO gns3server.server:91 Current locale is en_US.UTF-8
2024-12-17 22:43:32 INFO gns3server.server:292 Using system certificate store for SSL connections
2024-12-17 22:43:32 INFO gns3server.server:304 Starting server on 0.0.0.0:3080
2024-12-17 22:43:32 INFO uvicorn Started server process [9003]
2024-12-17 22:43:32 INFO uvicorn Waiting for application startup.
2024-12-17 22:43:32 INFO alembic.runtime.migration:215 Context impl SQLiteImpl.
2024-12-17 22:43:32 INFO alembic.runtime.migration:218 Will assume non-transactional DDL.
2024-12-17 22:43:33 INFO gns3server.db.tasks:87 Current database revision is None
2024-12-17 22:43:33 INFO alembic.runtime.migration:215 Context impl SQLiteImpl.
2024-12-17 22:43:33 INFO alembic.runtime.migration:218 Will assume non-transactional DDL.
2024-12-17 22:43:33 INFO alembic.runtime.migration:623 Running stamp_revision -> 9a5292aa4389
2024-12-17 22:43:33 INFO gns3server.controller:70 Loading controller vars file "/home/test/.config/GNS3/3.0/gns3_controller.vars"
2024-12-17 22:43:33 INFO gns3server.controller:74 Controller is starting
2024-12-17 22:43:33 INFO gns3server.controller:343 Installing base configs in '/home/test/GNS3/configs'
2024-12-17 22:43:33 INFO gns3server.controller:356 Installing built-in disks in '/home/test/GNS3/images/QEMU'
2024-12-17 22:43:33 INFO gns3server.controller:266 IOU license check is disabled on the controller
2024-12-17 22:43:33 INFO gns3server.controller:271 Comparing controller version 3.0.0.dev14+0dd53d31 with config version None
2024-12-17 22:43:33 INFO gns3server.controller.appliance_manager:119 Installing built-in appliances in '/home/test/.local/share/GNS3/appliances'
2024-12-17 22:43:33 INFO gns3server.controller.compute:69 Create compute local
2024-12-17 22:43:33 INFO gns3server.controller.compute:370 Connecting to compute 'local'
2024-12-17 22:43:33 WARNING gns3server.controller.compute:375 Cannot connect to compute 'local': Cannot connect to host 127.0.0.1:3080 ssl:default [Connect call failed ('127.0.0.1', 3080)]
2024-12-17 22:43:33 INFO gns3server.controller.compute:370 Connecting to compute 'local'
2024-12-17 22:43:33 WARNING gns3server.controller.compute:375 Cannot connect to compute 'local': Cannot connect to host 127.0.0.1:3080 ssl:default [Connect call failed ('127.0.0.1', 3080)]
2024-12-17 22:43:33 INFO gns3server.controller.compute:370 Connecting to compute 'local'
2024-12-17 22:43:33 WARNING gns3server.controller.compute:375 Cannot connect to compute 'local': Cannot connect to host 127.0.0.1:3080 ssl:default [Connect call failed ('127.0.0.1', 3080)]
2024-12-17 22:43:33 INFO gns3server.controller.compute:370 Connecting to compute 'local'
2024-12-17 22:43:33 WARNING gns3server.controller.compute:375 Cannot connect to compute 'local': Cannot connect to host 127.0.0.1:3080 ssl:default [Connect call failed ('127.0.0.1', 3080)]
2024-12-17 22:43:33 ERROR uvicorn Traceback (most recent call last):
File "/data/Development/gns3-web/backend/gns3server/controller/project.py", line 983, in open
await self.add_node(compute, name, node_id, dump=False, **node)
File "/data/Development/gns3-web/backend/gns3server/controller/project.py", line 611, in add_node
node = await self._create_node(compute, name, node_id, node_type, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/data/Development/gns3-web/backend/gns3server/controller/project.py", line 573, in _create_node
await compute.post("/projects", data=data)
File "/data/Development/gns3-web/backend/gns3server/controller/compute.py", line 598, in post
response = await self.http_query("POST", path, data, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/data/Development/gns3-web/backend/gns3server/controller/compute.py", line 349, in http_query
raise ComputeError(f"Cannot connect to compute '{self._name}' with request {method} {path}")
gns3server.controller.controller_error.ComputeError: Cannot connect to compute 'ARCH-DESKTOP (controller)' with request POST /projects

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/data/Development/gns3-web/backend/venv-gns3server/lib/python3.12/site-packages/starlette/routing.py", line 693, in lifespan
async with self.lifespan_context(app) as maybe_state:
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.12/contextlib.py", line 210, in aenter
return await anext(self.gen)
^^^^^^^^^^^^^^^^^^^^^
File "/data/Development/gns3-web/backend/venv-gns3server/lib/python3.12/site-packages/fastapi/routing.py", line 133, in merged_lifespan
async with original_context(app) as maybe_original_state:
^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.12/contextlib.py", line 210, in aenter
return await anext(self.gen)
^^^^^^^^^^^^^^^^^^^^^
File "/data/Development/gns3-web/backend/venv-gns3server/lib/python3.12/site-packages/fastapi/routing.py", line 133, in merged_lifespan
async with original_context(app) as maybe_original_state:
^^^^^^^^^^^^^^^^^^^^^
File "/data/Development/gns3-web/backend/venv-gns3server/lib/python3.12/site-packages/starlette/routing.py", line 569, in aenter
await self._router.startup()
File "/data/Development/gns3-web/backend/venv-gns3server/lib/python3.12/site-packages/starlette/routing.py", line 670, in startup
await handler()
File "/data/Development/gns3-web/backend/gns3server/core/tasks.py", line 57, in start_app
await Controller.instance().start(computes)
File "/data/Development/gns3-web/backend/gns3server/controller/init.py", line 137, in start
await self._project_auto_open()
File "/data/Development/gns3-web/backend/gns3server/controller/init.py", line 600, in _project_auto_open
await project.open()
File "/data/Development/gns3-web/backend/gns3server/utils/asyncio/init.py", line 146, in wrapper
return await f(oself, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/data/Development/gns3-web/backend/gns3server/controller/project.py", line 1040, in open
raise ControllerError(str(e))
gns3server.controller.controller_error.ControllerError: Cannot connect to compute 'ARCH-DESKTOP (controller)' with request POST /projects

2024-12-17 22:43:33 ERROR uvicorn Application startup failed. Exiting.`

By looking at the log it seems that the server is trying to connect using SSL although I did not specify to use SSL and I do not have it configured.

2024-12-17 22:43:32 INFO gns3server.server:292 **Using system certificate store for SSL connections**
2024-12-17 22:43:33 INFO gns3server.controller.compute:370 Connecting to compute 'local'
2024-12-17 22:43:33 WARNING gns3server.controller.compute:375 Cannot connect to compute 'local': **Cannot connect to host 127.0.0.1:3080 ssl:default** [Connect call failed ('127.0.0.1', 3080)]

[grossmj]

Did you have the same problem with RC2?

[cristian-ciobanu]

I also have RC2 installed through package manager and it has the same problem.
I'm assuming maybe some dependency got upgraded and might cause this.

[grossmj]

Thanks, it looks like there is an issue with the project auto open feature. I will investigate more soon.

Also, I plan to release 3.0 this week ;)

[grossmj]

Fixed, thanks for catching this 👍

[cristian-ciobanu]

I confirm that now it works fine. Thanks for fixing this.