Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Device access filtering in cgroup v2
Search
KONDO Uchio
October 09, 2021
Technology
1k
1
Share
Embed
Copy iframe code
Copy JS code
Copy link
Start on current slide
Device access filtering in cgroup v2
第15回 コンテナ技術の情報交換会@オンライン ->
https://ct-study.connpass.com/event/223739/
KONDO Uchio
October 09, 2021
More Decks by KONDO Uchio
See All by KONDO Uchio
大規模レガシーテストを 倒すための CI基盤の作り方 / #CICD2023
udzura
5
2.6k
Ruby x BPF in Action / RubyKaigi 2022
udzura
0
310
Narrative of Ruby & Rust
udzura
0
270
開発者生産性指標の可視化 / pepabo-four-keys
udzura
3
1.8k
Talk of RBS
udzura
0
500
Re: みなさん最近どうですか? / FGN tech meetup in 2021
udzura
0
860
Dockerとやわらかい仮想化 - ProSec-IT/SECKUN 2021 edition -
udzura
2
820
"Story of Rucy" on RubyKaigi takeout 2021
udzura
0
920
生産性を可視化したい! / SUZURI's four keys
udzura
11
5.5k
Other Decks in Technology
See All in Technology
しくみを学んで使いこなそう GitHub Copilot app
torumakabe
2
290
Genie Ontologyは銀の弾丸かを考える / Is Genie Ontology a Silver Bullet?
nttcom
0
410
SoccerMaster: A Vision Foundation Model for Soccer Understanding
kzykmyzw
0
150
ゴールデンパスは敷いただけでは道にならない ─ 企画部門のエンジニアが技術標準を事業価値に変えるまで
mhrtech
1
230
SREとQA 二人三脚で進めるSLO運用/sre-qa-slo
sugitak
0
980
Gen3R: 3D Scene Generation Meets Feed-Forward Reconstruction
spatial_ai_network
0
130
Control Planeで育てるBtoB SaaSの認証基盤 - SRE NEXT 2026
pokohide
1
2.7k
AICoEでAIネイティブ組織への進化
yukiogawa
0
200
ヘルスケア領域における AI 活用と その安全性担保のための取り組み (Leveraging AI in Healthcare and Our Efforts to Ensure Its Safety) - Google I/O Extended Tokyo 2026, July 11, 2026
zettaittenani
0
430
生成AI×AWS CDK×AWS FISで"振り返れる"ミニGameDayをつくろう
yoshimi0227
1
420
ソニー銀行におけるビジネスアジリティ向上のためのクラウドシフト戦略
srenext
0
850
End-to-Endで考える信頼性 —LINEアプリにおけるクライアント開発×SRE連携の実践
maruloop
4
4.7k
Featured
See All Featured
sira's awesome portfolio website redesign presentation
elsirapls
0
300
Collaborative Software Design: How to facilitate domain modelling decisions
baasie
1
260
A Soul's Torment
seathinner
6
3.1k
Raft: Consensus for Rubyists
vanstee
141
7.6k
Thoughts on Productivity
jonyablonski
76
5.2k
How GitHub (no longer) Works
holman
316
150k
How To Speak Unicorn (iThemes Webinar)
marktimemedia
1
510
世界の人気アプリ100個を分析して見えたペイウォール設計の心得
akihiro_kokubo
PRO
72
40k
Intergalactic Javascript Robots from Outer Space
tanoku
273
27k
Why Your Marketing Sucks and What You Can Do About It - Sophie Logan
marketingsoph
0
280
The Anti-SEO Checklist Checklist. Pubcon Cyber Week
ryanjones
0
180
The Limits of Empathy - UXLibs8
cassininazir
1
500
Transcript
ͳΜͰ#1'ͰΔ࣌ͳΜͩͳΝ 6DIJP,POEP(.01FQBCP *OD DHSPVQWͷ σόΠεΞΫηεϑΟϧλ
γχΞɾϓϦϯγύϧΤϯδχΞ ۙ౻ Ӊஐ࿕ / @udzura https://blog.udzura.jp/ Uchio Kondo ٕज़෦ ٕज़ج൫νʔϜ/σʔλج൫νʔϜ
@ GMOϖύϘ ΤϯδχΞΧϑΣʢԬࢢẂנจԽձؗʣ αϙʔλʔ Duolingo Diamond Leaguer 💎 * ͖ͳγεςϜίʔϧ: open_by_handle_at(2) * ͖ͳLinux Namespace: Time Namespace * ࠷ۙݴޠ࣮ʼOSࣗ࡞ʼBPFɺίϯςφɺͱ͍͏ײ͡...
͜Ε·Ͱͷ͋Β͢͡ wF#1'ͱ͍͏ٕज़͕͋Δ w<F#1'DIJLVXBJU>·ͨ<F#1'JENNJ>Ͱݕࡧ wͳΜΧʔωϧͰ҆શߴʹϑΟϧλ͢Δٕज़
F#1'ͷϓϩάϥϜλΠϓ wW w ଟ͗ͯ͢ѲͰ͖ͳ͍ͷͰ ୭͔෩དྷͷγϨϯʹྫ͑ͯ؆ܿʹڭ͑ͯཉ͍͠
BPF_PROG_TYPE_CGROUP_DEVICE
DHSPVQWͷσόΠεΞΫηε੍ݶ wEFWJDFTͱ͍͏αϒγεςϜ͕͋ͬͨ wಛఆͷϑΥʔϚοτͰEFWJDFTBMMPXEFWJDFTEFOZʹॻ͖ࠐΉ IUUQTXXXLFSOFMPSHEPD%PDVNFOUBUJPODHSPVQWEFWJDFTUYU
DHSPVQWͰͷσόΠεΞΫηε੍ݶ wJOUFSGBDFpMF͕ͳ͘ͳΔʢʂʣ w#1'@$(3061@%&7*$&ͳϓϩάϥϜΛDHSPVQʹΞλον͢Δͱͷ͜ͱ wϓϩάϥϜͰΑΓࡉ੍͔͘ޚՄೳԿͳΒྫ͑ϩάΛͨ͠ΓͰ͖Δ IUUQTXXXLFSOFMPSHEPD%PDVNFOUBUJPODHSPVQWUYUɹ
σϞϓϩάϥϜ
ϑΟϧλ͢ΔϓϩάϥϜʢ$Ͱॻ͘ʣ
ϑΟϧλ͢ΔϓϩάϥϜʢ$Ͱॻ͘ʣ ηΫγϣϯ໊ͷࢦఆ EFWVSBOEPNͰ͋ΕΛฦ͢ σϑΥϧτΛฦ͢
Ϗϧυ͢Δ ͖ͬ͞ͷ$ίʔυ͕͜͏͍͏ #1'ϓϩάϥϜʹίϯύΠϧ͞Ε͍ͯΔ
Ξλον͢Δ w΄΅Χʔωϧಉࠝͷ αϯϓϧίʔυͦͷ ··Ͱ͕͢
None
ΧϨϯτϓϩηε͕UFTUCQGʹॴଐ͍ͯ͠Δ WͳͷͰͷߦͷΈݟΔ EFWVSBOEPNʹΞΫηεͰ͖ͳ͍ ʢͪͳΈʹSPPUͰͰ͖·ͤΜʣ ଞͷσόΠε0,
͔͜͜Β༨ஊ
3VDZͱ͍͏ϓϩάϥϜΛ࡞ͬͨ w3VCZͷεΫϦϓτΛ#1'ʹ͠·͢ SVDZίϚϯυͰΦϒδΣΫτϑΝΠϧΛ ੜ͠ɺಉ༷ʹϩʔυ͢Δͱ༗ޮʹͳΔ
Έ Ruby Script mruby OpCodes BPF OpCodes BPF Object (ELF
format) mruby Rucy transpiler wNSVCZͷ0Q$PEFΛ࡞ΓɺͦΕΛ#1'0Q$PEFʹ༁͢Δ
໋ྩηοτͷൺֱʢҰ෦ʣ wNSVCZ wϨδελϚγϯ7.ɺϨδελݸʢݸΛਪʣ w໋ྩՄมɺҾ3 3ɺҙͷϨδελΛฦ٫Մ w#1' wϨδελϚγϯ7.ɺϨδελݸ w໋ྩݪଇݻఆʢCJUɺඞཁͳ߹CJUʣ wҾ3 3ɺฦ٫ඞͣ3
มͷྫ
·ͱΊʁ
ॴײͱ͔ w#1'ϓϩάϥϜͷதͰɺσόΠεΞΫηεϑΟϧλ খ͍࣮͞Ͱࢼ͢͜ͱ͕Ͱ͖ΔͷͰɺ 3VDZͷ࣮Λ͢Δࡍʹςετઌͱͯ͠ศརͩͬͨɻ wΈͳ͞ΜσόΠεΞΫηεϑΟϧλ͔Β#1'࢝Ί·ͤΜ͔ʁ