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This was missed when moving the ebpf stuff into a project. Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
23 lines
1.0 KiB
Markdown
23 lines
1.0 KiB
Markdown
## Using eBPF programs
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There is now a development image `mobylinux/ebpf:_tag_`. These are currently being built
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manually, I will tag one for each kernel release, as you should have a close one, eg
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`mobylinux/ebpf:4.9` is currently available.
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This image has all the kernel headers, `iovisor/bcc` built with support for C, Python and Lua,
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and all sources installed. It is very large so if we are shipping stuff based on this we will
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just extract compiled eBPF programs probably, but it is also usable for experiments, debug,
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benchmarks etc.
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You probably want to run with
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`docker run -it -v /sys/kernel/debug:/sys/kernel/debug --privileged --pid=host mobylinux/ebpf:tag sh` for
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interactive use as some things use debugfs. You need at least `CAP_SYS_ADMIN` to do anything.
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There are examples in `bcc/examples` that should generally just work, I have tried several of
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the Lua ones.
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Some of the `iovisor/bcc` samples try to access the kernel symbols. For them to work correctly you should also execute:
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```sh
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echo 0 > /proc/sys/kernel/kptr_restrict
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```
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