docker run fail，Error with no such device

[172226325]

【env】
mac os
【cmd】
docker build --tag ebpf_exporter --target ebpf_exporter_with_examples .
docker run --rm -it --privileged -p 9435:9435
ebpf_exporter --config.dir=examples --config.names=timers --debug
【result】
2023/09/28 00:41:16 Error attaching fanotify, using on-demand resolution instead: error calling fanotify_mark for "/sys/fs/cgroup": no such device
2023/09/28 00:41:16 libbpf [debug]: libbpf: loading examples/timers.bpf.o
2023/09/28 00:41:16 libbpf [debug]: libbpf: elf: section(3) tp_btf/timer_start, size 232, link 0, flags 6, type=1
2023/09/28 00:41:16 libbpf [debug]: libbpf: sec 'tp_btf/timer_start': found program 'timer_start' at insn offset 0 (0 bytes), code size 29 insns (232 bytes)
2023/09/28 00:41:16 libbpf [debug]: libbpf: elf: section(4) .reltp_btf/timer_start, size 48, link 27, flags 40, type=9
2023/09/28 00:41:16 libbpf [debug]: libbpf: elf: section(5) license, size 4, link 0, flags 3, type=1
2023/09/28 00:41:16 libbpf [debug]: libbpf: license of examples/timers.bpf.o is GPL
2023/09/28 00:41:16 libbpf [debug]: libbpf: elf: section(6) .maps, size 32, link 0, flags 3, type=1
2023/09/28 00:41:16 libbpf [debug]: libbpf: elf: section(17) .BTF, size 1317, link 0, flags 0, type=1
2023/09/28 00:41:16 libbpf [debug]: libbpf: elf: section(19) .BTF.ext, size 300, link 0, flags 0, type=1
2023/09/28 00:41:16 libbpf [debug]: libbpf: elf: section(27) .symtab, size 408, link 1, flags 0, type=2
2023/09/28 00:41:16 libbpf [debug]: libbpf: looking for externs among 17 symbols...
2023/09/28 00:41:16 libbpf [debug]: libbpf: collected 0 externs total
2023/09/28 00:41:16 libbpf [debug]: libbpf: map 'timer_starts_total': at sec_idx 6, offset 0.
2023/09/28 00:41:16 libbpf [debug]: libbpf: map 'timer_starts_total': found type = 1.
2023/09/28 00:41:16 libbpf [debug]: libbpf: map 'timer_starts_total': found key [8], sz = 8.
2023/09/28 00:41:16 libbpf [debug]: libbpf: map 'timer_starts_total': found value [8], sz = 8.
2023/09/28 00:41:16 libbpf [debug]: libbpf: map 'timer_starts_total': found max_entries = 1024.
2023/09/28 00:41:16 libbpf [debug]: libbpf: sec '.reltp_btf/timer_start': collecting relocation for section(3) 'tp_btf/timer_start'
2023/09/28 00:41:16 libbpf [debug]: libbpf: sec '.reltp_btf/timer_start': relo #0: insn #7 against 'timer_starts_total'
2023/09/28 00:41:16 libbpf [debug]: libbpf: prog 'timer_start': found map 0 (timer_starts_total, sec 6, off 0) for insn #7
2023/09/28 00:41:16 libbpf [debug]: libbpf: sec '.reltp_btf/timer_start': relo #1: insn #15 against 'timer_starts_total'
2023/09/28 00:41:16 libbpf [debug]: libbpf: prog 'timer_start': found map 0 (timer_starts_total, sec 6, off 0) for insn #15
2023/09/28 00:41:16 libbpf [debug]: libbpf: sec '.reltp_btf/timer_start': relo #2: insn #20 against 'timer_starts_total'
2023/09/28 00:41:16 libbpf [debug]: libbpf: prog 'timer_start': found map 0 (timer_starts_total, sec 6, off 0) for insn #20
2023/09/28 00:41:16 libbpf [warn]: libbpf: failed to find valid kernel BTF
2023/09/28 00:41:16 libbpf [warn]: libbpf: Error loading vmlinux BTF: -3
2023/09/28 00:41:16 libbpf [warn]: libbpf: failed to load object 'examples/timers.bpf.o'
2023/09/28 00:41:16 Error attaching exporter: error loading bpf object from "examples/timers.bpf.o" for config "timers": failed to load BPF object: no such process

Mac os seems not have /sys/fs/cgroup, so I read the steps of README, found the way that can run without any bind mounts, but errors above occur, how I can solve this?

[bobrik]

libbpf: failed to find valid kernel BTF is the error. Docker for mac ships with a kernel that doesn't have BTF:

$ docker run --rm -it ubuntu:22.04 zcat /proc/config.gz | fgrep BTF | wc -l
       0

You are trying to run the timers example that requires it:

• https://github.com/cloudflare/ebpf_exporter/blob/v2.2.0/examples/timers.bpf.c#L12

See libbpf docs:

• https://github.com/libbpf/libbpf#bpf-co-re-compile-once--run-everywhere