[Bug]: Monitoring Docker on Windows cause error

[Eisaichen]

Description

2025/01/24 13:06:16 ERROR Error getting container stats err="container2 - no memory stats - see https://github.com/henrygd/beszel/issues/144"
2025/01/24 13:06:16 ERROR Error getting container stats err="container1 - no memory stats - see https://github.com/henrygd/beszel/issues/144"

This error occurs for every update cycle. No data for "Docker Memory Usage" in the Hub.
This is not related to #144, docker stats is able to run.
The cause seems obvious, Docker on Windows doesn't report memory usage in the same format as Linux.

# Windows
CONTAINER ID   NAME       CPU %     PRIV WORKING SET   NET I/O          BLOCK I/O
f66a34bf45ca   container1   0.00%     269.9MiB           470MB / 7.26MB   2.07GB / 2.05GB
5a9f7dab0b95   container2     0.00%     57.12MiB           310MB / 10.9MB   5.1GB / 7.18GB


# Linux
CONTAINER ID   NAME           CPU %     MEM USAGE / LIMIT     MEM %     NET I/O       BLOCK I/O   PIDS
2f5895f9a7c4   busy_neumann   0.00%     1.984MiB / 15.23GiB   0.01%     1.11kB / 0B   0B / 0B     1

Expected Behavior

Report container memory usage data as designed.

Steps to Reproduce

1. Run some Windows Containers.
2. Setup DOCKER_HOST for beszel agent.
3. observe the error.

OS / Architecture

Windows/amd64 (agent), Linux/amd64 (Hub)

Beszel version

0.9.1

Installation method

Binary

Configuration

Hub Logs

Agent Logs

2025/01/24 13:03:28 INFO Detected root device name=\
2025/01/24 13:03:28 WARN Device not found in diskstats name=\
2025/01/24 13:03:28 INFO DOCKER_HOST host=tcp://127.0.0.1:2375
2025/01/24 13:03:28 INFO Starting SSH server address=:45876
2025/01/24 13:04:16 ERROR Error getting container stats err="container1 - no memory stats - see https://github.com/henrygd/beszel/issues/144"
2025/01/24 13:04:16 ERROR Error getting container stats err="container2 - no memory stats - see https://github.com/henrygd/beszel/issues/144"
2025/01/24 13:05:16 ERROR Error getting container stats err="container2 - no memory stats - see https://github.com/henrygd/beszel/issues/144"
2025/01/24 13:05:16 ERROR Error getting container stats err="container1 - no memory stats - see https://github.com/henrygd/beszel/issues/144"
2025/01/24 13:06:16 ERROR Error getting container stats err="container2 - no memory stats - see https://github.com/henrygd/beszel/issues/144"
2025/01/24 13:06:16 ERROR Error getting container stats err="container1 - no memory stats - see https://github.com/henrygd/beszel/issues/144"
2025/01/24 13:07:16 ERROR Error getting container stats err="container1 - no memory stats - see https://github.com/henrygd/beszel/issues/144"

[henrygd]

I'll try to check out the Windows bugs this week or over the weekend.

If you get a chance, can you try to hit the stats endpoint directly and let me know what you get?

curl --unix-socket //./pipe/docker_engine "http://localhost/containers/YOUR_CONTAINER_NAME/stats?stream=0&one-shot=1"

(I haven't tested this command directly on windows yet so it may not work.)

[Eisaichen]

I think Windows doesn't have a Unix socket, which is also why I exposed the dockerd through HTTP. the API call is succeeded without socket argument.

linux:~$ curl --unix-socket //./pipe/docker_engine "http://192.168.1.1:2375/containers/container1/stats?stream=0&one-shot=1"
curl: (7) Couldn't connect to server

linux:~$ nc -vz 192.168.1.1 2375
Connection to 192.168.1.1 2375 port [tcp/*] succeeded!

linux:~$ curl "http://192.168.1.1:2375/containers/container1/stats?stream=0&one-shot=1"
{"read":"2025-01-28T21:31:25.1723024-06:00","preread":"0001-01-01T00:00:00Z","pids_stats":{},"blkio_stats":{"io_service_bytes_recursive":null,"io_serviced_recursive":null,"io_queue_recursive":null,"io_service_time_recursive":null,"io_wait_time_recursive":null,"io_merged_recursive":null,"io_time_recursive":null,"sectors_recursive":null},"num_procs":16,"storage_stats":{"read_count_normalized":841825,"read_size_bytes":5629033472,"write_count_normalized":622312,"write_size_bytes":4672738816},"cpu_stats":{"cpu_usage":{"total_usage":5768125000,"usage_in_kernelmode":2231093750,"usage_in_usermode":3537031250},"throttling_data":{"periods":0,"throttled_periods":0,"throttled_time":0}},"precpu_stats":{"cpu_usage":{"total_usage":0,"usage_in_kernelmode":0,"usage_in_usermode":0},"throttling_data":{"periods":0,"throttled_periods":0,"throttled_time":0}},"memory_stats":{"commitbytes":482381824,"commitpeakbytes":891002880,"privateworkingset":247332864},"networks":{"B7CD3EF9-85BD-47AA-9D6A-6864A96593F4":{"rx_bytes":515498421,"rx_packets":369265,"rx_errors":0,"rx_dropped":106,"tx_bytes":34068836,"tx_packets":84887,"tx_errors":0,"tx_dropped":0}}}