[Bug] Agent Timeout Error - cant set Agent timeout

[nickwebcouk]

What’s the bug?

I cant view images - I keep getting an Agent Timeout error

Description

When using tugtainer with default values, I keep getting Agent Timeout errors when attempting to view images. My compose is almost identical to the provded example, expect I have added
DOCKER_TIMEOUT: 60
in an attempt to fix this issue. It has not made any difference.

The actual error is:

424 Failed Dependency

Agent timeout error
http://127.0.0.1:8001/api/image/list
POST
408

The problem is most likely related to the low Agent Timeout value, which you can increase in the host settings.

My change to docker-compose was made to the Env section - and only to sort this issue.

    environment:
      # The list of available variables is in env.example
      DOCKER_HOST: tcp://socket-proxy:2375
      DOCKER_TIMEOUT: 60

The images section worked fine (bit was slow0 when I had 4 containers. I now have 10 containers with multiple updates so looking ot use images to prune.

The error still shows after ~10 seconds, so seems ot be ignoring the timeout value.

Expected behaviour

To view images

To reproduce

Load tugtainer
load images
see error

Platform

Debian, rPi 4 (ARM)

Versions

latest

Relevant log output

tugtainer     | INFO  [alembic.runtime.migration] Context impl SQLiteImpl.
tugtainer     | INFO  [alembic.runtime.migration] Will assume non-transactional DDL.
tugtainer     | BACKEND - ERROR - 2026-04-10 22:36:17 - Agent timeout error
tugtainer     | Traceback (most recent call last):
tugtainer     |   File "/app/.venv/lib/python3.13/site-packages/aiohttp/client_reqrep.py", line 539, in start
tugtainer     |     message, payload = await protocol.read()  # type: ignore[union-attr]
tugtainer     |                        ^^^^^^^^^^^^^^^^^^^^^
tugtainer     |   File "/app/.venv/lib/python3.13/site-packages/aiohttp/streams.py", line 703, in read
tugtainer     |     await self._waiter
tugtainer     | asyncio.exceptions.CancelledError
tugtainer     |
tugtainer     | The above exception was the direct cause of the following exception:
tugtainer     |
tugtainer     | Traceback (most recent call last):
tugtainer     |   File "/app/backend/core/agent_client.py", line 115, in _request
tugtainer     |     async with session.request(
tugtainer     |                ~~~~~~~~~~~~~~~^
tugtainer     |         method,
tugtainer     |         ^^^^^^^
tugtainer     |     ...<5 lines>...
tugtainer     |         timeout=aiohttp.ClientTimeout(total=timeout),
tugtainer     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
tugtainer     |     ) as resp:
tugtainer     |     ^
tugtainer     |   File "/app/.venv/lib/python3.13/site-packages/aiohttp/client.py", line 1510, in __aenter__
tugtainer     |     self._resp: _RetType = await self._coro
tugtainer     |                            ^^^^^^^^^^^^^^^^
tugtainer     |   File "/app/.venv/lib/python3.13/site-packages/aiohttp/client.py", line 779, in _request
tugtainer     |     resp = await handler(req)
tugtainer     |            ^^^^^^^^^^^^^^^^^^
tugtainer     |   File "/app/.venv/lib/python3.13/site-packages/aiohttp/client.py", line 757, in _connect_and_send_request
tugtainer     |     await resp.start(conn)
tugtainer     |   File "/app/.venv/lib/python3.13/site-packages/aiohttp/client_reqrep.py", line 534, in start
tugtainer     |     with self._timer:
tugtainer     |          ^^^^^^^^^^^
tugtainer     |   File "/app/.venv/lib/python3.13/site-packages/aiohttp/helpers.py", line 713, in __exit__
tugtainer     |     raise asyncio.TimeoutError from exc_val
tugtainer     | TimeoutError

Extra

No response