Short Description of the issue

When starting teapot for the first time, it throws an exception if the logs directory does not exist because it can't store the log files and teapot_sessions.json

Environment

irrelevant.

• Operating System: all
• Other related components versions: irrelevant

Steps to reproduce

start teapot without /home/teapot//logs being created

Logs, stacktrace, or other symptoms

ERROR:    Traceback (most recent call last):
  File "/home/teapot/.local/lib/python3.10/site-packages/starlette/routing.py", line 677, in lifespan
    async with self.lifespan_context(app) as maybe_state:
  File "/usr/local/lib/python3.10/contextlib.py", line 199, in __aenter__
    return await anext(self.gen)
  File "/usr/share/teapot/teapot.py", line 44, in lifespan
    await load_session_state()
  File "/usr/share/teapot/teapot.py", line 482, in load_session_state
    with open(SESSION_STORE_PATH, "w") as f:
FileNotFoundError: [Errno 2] No such file or directory: '/home/teapot/logs/teapot_sessions.json'

ERROR:    Application startup failed. Exiting.

Summary of proposed changes

check if directory exists in lifespan function and create it if not.

some links in the readme.md are still pointing to resources in gitlab.desy.de.

courtesy of JR.

all configuration in teapot should be externalized into a .config file.

• use a config parser
• find all config options within teapot for teapot itself, user-config and storm-config
• write a default config file with all options
• make sure that default options are set for everything
• document the config.

Remove from source code part where it writes teapot-sessions.json

ERROR: Exception in ASGI application
Traceback (most recent call last):
File "/home/teapot/.local/lib/python3.10/site-packages/httpcore/_exceptions.py", line 10, in map_exceptions
yield
File "/home/teapot/.local/lib/python3.10/site-packages/httpcore/_backends/anyio.py", line 34, in read
return await self._stream.receive(max_bytes=max_bytes)
File "/home/teapot/.local/lib/python3.10/site-packages/anyio/streams/tls.py", line 196, in receive
data = await self._call_sslobject_method(self._ssl_object.read, max_bytes)
File "/home/teapot/.local/lib/python3.10/site-packages/anyio/streams/tls.py", line 138, in _call_sslobject_method
data = await self.transport_stream.receive()
File "/home/teapot/.local/lib/python3.10/site-packages/anyio/_backends/_asyncio.py", line 1210, in receive
raise ClosedResourceError from None
anyio.ClosedResourceError

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "/home/teapot/.local/lib/python3.10/site-packages/httpx/_transports/default.py", line 66, in map_httpcore_exceptions
yield
File "/home/teapot/.local/lib/python3.10/site-packages/httpx/_transports/default.py", line 249, in aiter
async for part in self._httpcore_stream:
File "/home/teapot/.local/lib/python3.10/site-packages/httpcore/_async/connection_pool.py", line 361, in aiter
async for part in self._stream:
File "/home/teapot/.local/lib/python3.10/site-packages/httpcore/_async/http11.py", line 337, in aiter
raise exc
File "/home/teapot/.local/lib/python3.10/site-packages/httpcore/_async/http11.py", line 329, in aiter
async for chunk in self._connection._receive_response_body(**kwargs):
File "/home/teapot/.local/lib/python3.10/site-packages/httpcore/_async/http11.py", line 198, in _receive_response_body
event = await self._receive_event(timeout=timeout)
File "/home/teapot/.local/lib/python3.10/site-packages/httpcore/_async/http11.py", line 212, in _receive_event
data = await self._network_stream.read(
File "/home/teapot/.local/lib/python3.10/site-packages/httpcore/_backends/anyio.py", line 31, in read
with map_exceptions(exc_map):
File "/usr/local/lib/python3.10/contextlib.py", line 153, in exit
self.gen.throw(typ, value, traceback)
File "/home/teapot/.local/lib/python3.10/site-packages/httpcore/_exceptions.py", line 14, in map_exceptions
raise to_exc(exc) from exc
httpcore.ReadError

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "/home/teapot/.local/lib/python3.10/site-packages/uvicorn/protocols/http/h11_impl.py", line 408, in run_asgi
result = await app( # type: ignore[func-returns-value]
File "/home/teapot/.local/lib/python3.10/site-packages/uvicorn/middleware/proxy_headers.py", line 84, in call
return await self.app(scope, receive, send)
File "/home/teapot/.local/lib/python3.10/site-packages/fastapi/applications.py", line 1106, in call
await super().call(scope, receive, send)
File "/home/teapot/.local/lib/python3.10/site-packages/starlette/applications.py", line 122, in call
await self.middleware_stack(scope, receive, send)
File "/home/teapot/.local/lib/python3.10/site-packages/starlette/middleware/errors.py", line 184, in call
raise exc
File "/home/teapot/.local/lib/python3.10/site-packages/starlette/middleware/errors.py", line 162, in call
await self.app(scope, receive, _send)
File "/home/teapot/.local/lib/python3.10/site-packages/starlette/middleware/exceptions.py", line 79, in call
raise exc
File "/home/teapot/.local/lib/python3.10/site-packages/starlette/middleware/exceptions.py", line 68, in call
await self.app(scope, receive, sender)
File "/home/teapot/.local/lib/python3.10/site-packages/fastapi/middleware/asyncexitstack.py", line 20, in call
raise e
File "/home/teapot/.local/lib/python3.10/site-packages/fastapi/middleware/asyncexitstack.py", line 17, in call
await self.app(scope, receive, send)
File "/home/teapot/.local/lib/python3.10/site-packages/starlette/routing.py", line 718, in call
await route.handle(scope, receive, send)
File "/home/teapot/.local/lib/python3.10/site-packages/starlette/routing.py", line 276, in handle
await self.app(scope, receive, send)
File "/home/teapot/.local/lib/python3.10/site-packages/starlette/routing.py", line 69, in app
await response(scope, receive, send)
File "/home/teapot/.local/lib/python3.10/site-packages/starlette/responses.py", line 270, in call
async with anyio.create_task_group() as task_group:
File "/home/teapot/.local/lib/python3.10/site-packages/anyio/_backends/_asyncio.py", line 597, in aexit
raise exceptions[0]
File "/home/teapot/.local/lib/python3.10/site-packages/starlette/responses.py", line 273, in wrap
await func()
File "/home/teapot/.local/lib/python3.10/site-packages/starlette/responses.py", line 262, in stream_response
async for chunk in self.body_iterator:
File "/home/teapot/.local/lib/python3.10/site-packages/httpx/_models.py", line 990, in aiter_raw
async for raw_stream_bytes in self.stream:
File "/home/teapot/.local/lib/python3.10/site-packages/httpx/_client.py", line 146, in aiter
async for chunk in self._stream:
File "/home/teapot/.local/lib/python3.10/site-packages/httpx/_transports/default.py", line 248, in aiter
with map_httpcore_exceptions():
File "/usr/local/lib/python3.10/contextlib.py", line 153, in exit
self.gen.throw(typ, value, traceback)
File "/home/teapot/.local/lib/python3.10/site-packages/httpx/_transports/default.py", line 83, in map_httpcore_exceptions
raise mapped_exc(message) from exc
httpx.ReadError

When teapot is shutting down it gives the following error message:

ERROR:    Traceback (most recent call last):
  File "/usr/local/lib/python3.10/site-packages/starlette/routing.py", line 738, in lifespan
    async with self.lifespan_context(app) as maybe_state:
  File "/usr/local/lib/python3.10/contextlib.py", line 206, in __aexit__
    await anext(self.gen)
  File "/usr/share/teapot/teapot.py", line 62, in lifespan
    pathlib.Path.unlink(SESSION_STORE_PATH)
  File "/usr/local/lib/python3.10/pathlib.py", line 1206, in unlink
    self._accessor.unlink(self)
AttributeError: 'str' object has no attribute '_accessor'

ERROR:    Application shutdown failed. Exiting.

It would be easier to find issues in the log if the log entries had dates.

Users need permission to their configuration directories in /var/lib/teapot/ so storm-webdav servers can write in there (and read configuration information).

teapot needs the sudo rights to usermod -a -G teapot * in order to do that

need to add check for no storm instance created and then return 500

currently instances can be created but not stopped by teapot
fix this with process group, maybe?

Gave a 200 OK status when it was actually not working.