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
Sponsored
·
Ship Features Fearlessly
Turn features on and off without deploys. Used by thousands of Ruby developers.
→
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
320
Narrative of Ruby & Rust
udzura
0
280
開発者生産性指標の可視化 / pepabo-four-keys
udzura
3
1.9k
Talk of RBS
udzura
0
510
Re: みなさん最近どうですか? / FGN tech meetup in 2021
udzura
0
870
Dockerとやわらかい仮想化 - ProSec-IT/SECKUN 2021 edition -
udzura
2
830
"Story of Rucy" on RubyKaigi takeout 2021
udzura
0
930
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
現場の暗黙知を継承するAIエージェント — 対話から生まれる長期記憶と Skills
atsukish
0
130
Claude Codeで開発以外の業務も爆速化しよう!
minorun365
PRO
11
9k
信頼性はSREだけのものじゃない
hkawaras
0
300
最新技術に積極チャレンジ!EKS共通基盤のこれまでとこれから
daitak
0
250
AI駆動開発を組織で促すために
lycorptech_jp
PRO
7
8.7k
会計事務所と顧問先の契約関係をOIDC・OAuthで表現する
terara
0
490
【5分でわかる】セーフィー エンジニア向け会社紹介
safie_recruit
0
54k
Bill One 開発エンジニア 紹介資料
sansan33
PRO
7
20k
研究開発部の紹介 / Sansan R&D Profile
sansan33
PRO
4
24k
Point Cloud as a Foreign Language for Multi-modal Large Language Model
takmin
0
300
Cloudflare製品を活用した AIガバナンス実践入門 / AI governance with Cloudflare Service
delta_tech
1
120
「面白い!」を信じ抜け。激動の時代を貫く、オンリーワン・エンジニアの条件
kizawa2020
2
390
Featured
See All Featured
Are puppies a ranking factor?
jonoalderson
2
3.8k
Automating Front-end Workflow
addyosmani
1369
210k
AI Search: Implications for SEO and How to Move Forward - #ShenzhenSEOConference
aleyda
1
1.3k
Utilizing Notion as your number one productivity tool
mfonobong
4
560
How to optimise 3,500 product descriptions for ecommerce in one day using ChatGPT
katarinadahlin
PRO
2
3.8k
Building the Perfect Custom Keyboard
takai
2
850
Pawsitive SEO: Lessons from My Dog (and Many Mistakes) on Thriving as a Consultant in the Age of AI
davidcarrasco
0
220
Embracing the Ebb and Flow
colly
88
5.1k
Ethics towards AI in product and experience design
skipperchong
2
350
Agile that works and the tools we love
rasmusluckow
331
22k
A designer walks into a library…
pauljervisheath
211
24k
How to Grow Your eCommerce with AI & Automation
katarinadahlin
PRO
1
250
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