I'm trying to upgrade the Prefect version we have deployed in our Kubernetes cluster from

2.14.13

to

2.14.17

, but the Server goes into a crash loop with the error below. The Agent runs fine with the updated version. This is image

2.14.17-python3.9

. Any thoughts on why this might be happening?

16:07:58.765 | DEBUG   | prefect.profiles - Using profile 'default'
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/runpy.py", line 197, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/usr/local/lib/python3.9/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/usr/local/lib/python3.9/site-packages/uvicorn/__main__.py", line 4, in <module>
    uvicorn.main()
  File "/usr/local/lib/python3.9/site-packages/click/core.py", line 1157, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/click/core.py", line 1078, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python3.9/site-packages/click/core.py", line 1434, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python3.9/site-packages/click/core.py", line 783, in invoke
    return __callback(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/uvicorn/main.py", line 418, in main
    run(
  File "/usr/local/lib/python3.9/site-packages/uvicorn/main.py", line 587, in run
    server.run()
  File "/usr/local/lib/python3.9/site-packages/uvicorn/server.py", line 62, in run
    return asyncio.run(self.serve(sockets=sockets))
  File "/usr/local/lib/python3.9/asyncio/runners.py", line 44, in run
    return loop.run_until_complete(main)
  File "/usr/local/lib/python3.9/asyncio/base_events.py", line 647, in run_until_complete
    return future.result()
  File "/usr/local/lib/python3.9/site-packages/uvicorn/server.py", line 69, in serve
    config.load()
  File "/usr/local/lib/python3.9/site-packages/uvicorn/config.py", line 464, in load
    self.loaded_app = self.loaded_app()
  File "/usr/local/lib/python3.9/site-packages/prefect/server/api/server.py", line 627, in create_app
    ui_app = create_ui_app(ephemeral)
  File "/usr/local/lib/python3.9/site-packages/prefect/server/api/server.py", line 397, in create_ui_app
    create_ui_static_subpath()
  File "/usr/local/lib/python3.9/site-packages/prefect/server/api/server.py", line 372, in create_ui_static_subpath
    os.makedirs(static_dir)
  File "/usr/local/lib/python3.9/os.py", line 225, in makedirs
    mkdir(name, mode)
OSError: [Errno 30] Read-only file system: '/usr/local/lib/python3.9/site-packages/prefect/server/ui_build'
Server stopped!

Hi Nick, thanks for raising this. We're currently looking into this on our end. If possible, I'd recommend setting the version to

2.14.16

Sounds good, thank you. Though

2.14.16

seems to have the same problem

Has there been any update on this? I'm still seeing the same problem up to

2.14.20

I am also still seeing the problem up through

2.14.20

I'm also having this issue on 2.16.3. Tried both the python 3.9 and python 3.12 images... @Andrea Armstrong what's your setup like?