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| kata-irc-bot4 | <eric.ernst> Looking at https://github.com/kata-containers/packaging/pull/956 - what’s bpf actually used for @julio.montes ? | 15:10 |
|---|---|---|
| devimc | to run bpf programs in cgroups v2 | 15:16 |
| devimc | @eric.ernst look https://github.com/opencontainers/runc/pull/2145/files | 15:17 |
| devimc | it's like a device cgroup implementation but for v2 | 15:18 |
| kata-irc-bot4 | <eric.ernst> V2 uses bpf at large, or runc / lib container does? | 15:29 |
| kata-irc-bot4 | <eric.ernst> Just trying to better understand what the bpf programs are used for in this case. | 15:30 |
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| devimc | runc/libcontainers does | 16:00 |
| gwhaley | just fyi @fuentess @jcvenegas - I added some Azure and Zuul CI trigger and link details to https://github.com/kata-containers/community/wiki/Controlling-the-CI :-) | 16:15 |
| devimc | gwhaley: jfyi - jcvenegas is ooo until Monday xD | 16:16 |
| kata-irc-bot4 | <salvador.fuentes> thanks gwhaley | 16:22 |
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| kata-irc-bot4 | <archana.m.shinde> @eric.ernst cgroupv2 device controller needs bpf | 18:14 |
| kata-irc-bot4 | <archana.m.shinde> ``` Device controller manages access to device files. It includes both creation of new device files (using mknod), and access to the existing device files. Cgroup v2 device controller has no interface files and is implemented on top of cgroup BPF. To control access to device files, a user may create bpf programs of the BPF_CGROUP_DEVICE type and attach them to cgroups. On an attempt to access a device file, corresponding BPF | 18:14 |
| kata-irc-bot4 | programs will be executed, and depending on the return value the attempt will succeed or fail with -EPERM``` | 18:14 |
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| kata-irc-bot4 | <eric.ernst> Thanks. | 19:44 |
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