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
コンテナは友だち! /friends-who-are-good-at-containers
Search
Sponsored
·
Ship Features Fearlessly
Turn features on and off without deploys. Used by thousands of Ruby developers.
→
KONDO Uchio
September 14, 2017
Technology
3k
13
Share
Embed
Copy iframe code
Copy JS code
Copy link
Start on current slide
コンテナは友だち! /friends-who-are-good-at-containers
2017年 pepabo 新卒エンジニア座学
----
追記・修正
p.16 LXDはGo言語で開発されている
https://github.com/lxc/lxd
KONDO Uchio
September 14, 2017
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
Device access filtering in cgroup v2
udzura
1
1k
"Story of Rucy" on RubyKaigi takeout 2021
udzura
0
930
Other Decks in Technology
See All in Technology
なぜ Temporal の大小比較には compare しかないのか / Why Does Temporal Only Have compare() for Comparisons
kazukihayase
1
200
形式手法特論:Hyperproperty とモデル検査 #kernelvm / Kernel VM Study Tokyo 19th
ytaka23
0
740
関東Kaggler会発表資料
takoi
1
290
Android skills に学ぶ
kokiko
0
160
型落ちシンクライアント端末のPoEモジュールを自作したかった話
logica0419
0
390
【CEDEC2026】Creative Approaches to Localizing the Dialects and Unique Speech of Umamusume: Pretty Derby Characters in English
cygames
PRO
4
26k
トークンマネジメントでAIにとって働きやすい環境を実現する
hikaruegashira
0
150
フィジカルAIの知識ゼロの僕でも AIを使えばここまでできた
tatsuya1970
0
160
DDDのエッセンスを取り入れたAIでの開発
ak2ie
1
220
LLM Internals: 언어 모델의 계보와 알고리즘 진화 (2023~2026)
inureyes
PRO
1
890
同じWAFが、攻撃の“形”は弾く── 正当な“形”の不正は通す
kuroneko13
0
270
AIで変わるエンジニアの働き方(仮)
naoinaoi
0
480
Featured
See All Featured
YesSQL, Process and Tooling at Scale
rocio
174
15k
The Success of Rails: Ensuring Growth for the Next 100 Years
eileencodes
47
8.3k
Breaking role norms: Why Content Design is so much more than writing copy - Taylor Woolridge
uxyall
0
380
Effective software design: The role of men in debugging patriarchy in IT @ Voxxed Days AMS
baasie
0
480
Making Projects Easy
brettharned
120
6.7k
The Curious Case for Waylosing
cassininazir
1
480
The Limits of Empathy - UXLibs8
cassininazir
1
610
A Modern Web Designer's Workflow
chriscoyier
698
190k
Bioeconomy Workshop: Dr. Julius Ecuru, Opportunities for a Bioeconomy in West Africa
akademiya2063
PRO
1
270
From π to Pie charts
rasagy
0
320
Scaling GitHub
holman
464
140k
Speed Design
sergeychernyshev
33
2k
Transcript
ා͘ͳ͍γεςϜϓϩάϥϛϯά ۙ౻Ӊஐ࿕(.01FQBCP *OD ৽ଔΤϯδχΞ࠲ֶ ίϯςφ༑ͩͪʂ
ΤϯδχΞ ۙ౻Ӊஐ࿕!VE[VSB ٕज़෦ٕज़ج൫νʔϜ ͖ͳϥʔϝϯΒʔΊΜཾ (.0ϖύϘॴଐ
ࠓͷΞδΣϯμ w ϓϩηεͱԿͩΖ͏ʁ w ίϯςφͱԿͩΖ͏ʁ w ΈΜͳίϯςφʹͳͬͯΈΑ͏ʁʁʁ
ϓϩηεͱʁ
'SPNް͍ຊ w-*/69ϓϩάϥϛϯάΠϯλʔϑΣʔε ΦϥΠϦʔ ͜ͷதͰҰ൪ް͍ຊ
ϓϩηεͱϓϩάϥϜͷ࣮ߦதͷ࢟Ͱ͢ ʮϓϩηεͱɺϓϩάϥϜͷ࣮ߦʹඞཁ ͳγεςϜϦιʔεΛׂΓͯΔͨΊɺΧʔ ωϧ͕ఆٛ͢ΔநΤϯςΟςΟͰ͋Δʯͱ ݴ͍͑ΒΕ·͢ɻ ʰ-JOVYϓϩάϥϛϯάΠϯλʔϑΣʔεʱষϓϩηε
ϓϩηεͱ৮Ε߹͏ wʮϓϩάϥϜͷ࣮ߦʹඞཁͳϦιʔεʯΛ͍ͯΈΔ wͦΕ͕ɺ͢ͳΘͪϓϩηεଐੑͰ͋Δ wྫ w 1*%ɺ1*% w εςʔλεʢ࣮ߦՄೳɺ*0ͪɺʣ w ڥม
w ϑΝΠϧσΟεΫϦϓλςʔϒϧ w 6TFS*%(SPVQ*% w ݖݶʢ,FSOFM$BQBCJMJUZʣ w ΧϨϯτσΟϨΫτϦ w ϝϞϦϚοϐϯά
TUSVDUUBTL@TUSVDU
QSPDQSPDGT wγεςϜϓϩηεͷใΛऔಘͰ͖ΔಛघϑΝΠϧγεςϜ wQSPDͷԼʹ࠷ॳ͔ΒϚϯτ͞Ε͍ͯΔ߹͕ଟ͍ɻ wϚϯτ͞Ε͍ͯͳ͍ͱ͑ͳ͍πʔϧ͋ΔʢQTɺUPQͦͷଞʣ
தΛݟͯΈΑ͏ wԋश ͘ଘࡏ͢ΔΑ͏ͳϓϩηεΛ࡞ͬͯΈΑ͏ɻ w ͦͷϓϩηεͷ1*%Λಛఆ͠Α͏ɻ w ͦͷϓϩηεʹ͍ͭͯɺҎԼͷใΛऔಘͯ͠ΈΑ͏ɻ
w ΧϨϯτσΟϨΫτϦ IJOUQSPD1*%DXE w ڥม IJOUQSPD1*%FOWJSPO w ϝϞϦϚοϐϯά IJOUQSPD1*%NBQT w εϨουͷ IJOUQSPD1*%UBTL
ίϯςφͱʁ
ԾԽͷछྨʢҰྫʣ wϋΠύʔόΠβܕʢωΠςΟϒϋΠύʔόΠβʣ wઐ༻ͷ04ɺ-JOVY,FSOFMࣗମΛϋΠύʔόΠβͱ͍ͯ͠ɺͦͷ ্Ͱ04ΛΒͤΔ wϗετ04ܕʢϗετϋΠύʔόΠβʣ w൚༻తͳ04ͷ্ʹɺ7JSUVBM#PYͷΑ͏ͳԾԽͷͨΊͷઐ༻ιϑτ ΣΞΛೖΕͯΒͤΔ wίϯςφܕˠ
ίϯςφͱ wখ͞ͳಠཱͨ͠ڥΛɺҰͭͷ04ͷ্ʹ࡞Δٕज़ɻ wͨͩ͠ɺԾԽٕज़ͷΑ͏ʹѻΘΕΔ͕ɺԿ͔ΛԾతʹ࡞͍ͬͯΔ ͱ͍͏͜ͱͰͳ͍
ίϯςφ ಛघͳϓϩηεͰ͋Δ
͜Ε͚֮ͩ͑ͯؼͬͯ͘Εʂʂ̍
ίϯςφͷ࣮ w%PDLFS(PMBOHɻ,VCFSOFUFTͳͲͱ࿈ܞ͠ɺঃʑʹ׆༻γʔϯ ͕·͍ͬͯΔ w-9$-9%ΧʔωϧͷίϯςφϨϑΝϨϯε࣮తཱͪҐஔɻ$ w)BDPOJXBNSVCZ $ݴޠͰͰ͖ͨίϯςφɻ3VCZͷ%4-Ͱίϯ ςφΛఆٛͰ͖Δɻ(.0ϖύϘͱ͍͏ձ͕ࣾϚωʔδυΫϥυͷ όοΫΤϯυʹ࠾༻͠ʹɻ
ίϯςφͲ͏ͬͯ࡞ΒΕ͍ͯΔ͔ wࠓ͋͛ͨ-JOVYίϯςφͷ࣮Ͱɺجຊతʹಉ͡ΧʔωϧͷػೳΛ Έ߹Θͤͯɺʮখ͘͞ಠཱͨ͠ڥʯΛ࡞͍ͬͯΔɻ wͦͷػೳ͕ద༻͞Ε͍ͯΔ͔͍ͳ͍͔ɺϓϩηεͷଐੑͰ͋Δͷ ͰɺQSPDͷԼͳͲ͔Β֬ೝ͢Δ͜ͱ͕Ͱ͖·͢
%PDLFSͰίϯςφΛ࡞ͬͯΈΑ͏
QSPD1*%OTͷԼΛݟͯΈΑ͏
͜Εɺଞͷϓϩηεͱҧ͍ͬͯΔ wͱ͍͏͜ͱΛ֬ೝ͢Δ
͜Εɺଞͷϓϩηεͱҧ͍ͬͯΔ wͱ͍͏͜ͱΛ֬ೝ͢Δ ◀ ◀ ◀ ◀ ◀
-JOVY/BNFTQBDF
-JOVY/BNFTQBDFͱ wΧʔωϧɺάϩʔόϧͰཧ͍ͯ͠ΔϦιʔε͕ͨ͘͞Μ͋Δɻ wͦ͏͍͏Ϧιʔεͷ͏ͪҰ෦ɺ໊લۭؒΛͬͯɺಛఆͷϓϩηε ͨͪͷͨΊʹผͷϦιʔεΛ֬อ͢Δ͜ͱ͕Ͱ͖Δ w654/BNFTQBDFϗετ໊ͳͲ w1*%/BNFTQBDFϓϩηε*% w/FUXPSL/BNFTQBDFωοτϫʔΫઃఆʢ/*$ଞʣ wͳͲͳͲɻ࠷৽ͷ-JOVYͰਓͷࣆͭͷ/BNFTQBDF
QSPD1*%OTͱ wʮͦͷϓϩηε͕ॴଐ͢Δ/BNFTQBDFΛදݱ͢ΔϑΝΠϧʯΛ ݟ͚ͭΔ͜ͱ͕Ͱ͖ΔσΟϨΫτϦ w͋Δϓϩηεͱɺผͷϓϩηε͕ҧ͏ϑΝΠϧʢJOPEF൪߸ʣΛ ͍ࠩͯ͠Εɺͦͷϓϩηεͨͪผʑͷ໊લۭؒʹ͍ΔͶɺ ͱ֬ೝͰ͖Δ
DHSPVQ
QSPD1*%DHSPVQͱ͍͏ϑΝΠϧ wͳʹΒಛघͳจࣈྻ͕ॻ͔Ε͍ͯΔ
࣮ࡍͷσΟϨΫτϦʹରԠ͢Δ wTZTGTDHSPVQͱ͍͏ͱ͜ΖΛௐΔͱ
͜Ε͕DHSPVQ wDHSPVQɺͱͱϓϩηεΛάϧʔϐϯά͢ΔͨΊͷػೳɻ wϓϩηεͷάϧʔϓຖʹɺ$16ͷར༻Ͱ͋ͬͨΓɺϝϞϦͰ͋ͬͨ Γɺ1*%ͷͰ͋ͬͨΓɺͷ੍ݶΛ͔͚Δ͜ͱ͕Ͱ͖Δɻ͋Δ͍ɺ άϧʔϓผͷར༻ঢ়گΛ֬ೝͨ͠ΓͰ͖Δ wDHSPVQʹؔ͢Δૢ࡞ɺDHSPVQGTͱ͍͏ಛघϑΝΠϧγεςϜΛ ܦ༝ͯ͠Ͱ͖Δ
࣮ࡍͷ੍ݶΛ֬ೝ •docker run --pids-limit=128 -ti debian:jessie /bin/bash wͷΑ͏ͳίϚϯυͰɺϓϩηεͷDHSPVQ੍ݶΛ͔͚ΒΕΔ w͜ͷγΣϧͰɺGPSLCPNC߈ܸΛͯ͠ɺؼͬͯ͘Δ
None
ΈΜͳίϯςφʹ ͳͬͯΈΑ͏ʁʁʁ
͜͜·Ͱͷ·ͱΊ wίϯςφͨͩͷ ϓϩηεɻා͘ͳ͍Αʂ
ͱ͍͏͜ͱͰ wίϯςφΛܰʙ͘ϋϯυϝΠυͯ͠Έ·͠ΐ͏͔ɻ
ಠཱͨ͠SPPUʹ͍Δ wEFCPPUTUSBQͱݴ͏ίϚϯυͰɺ%FCJBOͷϑΝΠϧγεςϜ͚ͩΛ ४උͰ͖Δɻ wDISPPUͱݴ͏ίϚϯυͰɺͦͷதʹೖΔ͜ͱ͕Ͱ͖·͢ w ࣮%PDLFSͳ͠Ͱɺ6CVOUVͷதͰ%FCJBOڥΛಘΔ͜ͱͰ͖Δ mkdir /root/7th-engineer debootstrap
--variant=minbase \ jessie \ /root/7th-engineer \ http://ftp.jp.debian.org/debian
None
/BNFTQBDFΛ͢Δ wVOTIBSFͱݴ͏ίϚϯυΛ͏ͱͰ͖Δ •unshare --fork --pid --mount --uts wͷΑ͏ʹͯ͠ɺ1*%OBNFTQBDFɺ.PVOU/BNFTQBDFɺ654 /BNFTQBDFΛͰ͖Δ
DHSPVQͷ੍ݶΛ͔͚Δ w৽͍͠DHSPVQɺ NLEJSͳͲͰ؆୯ʹ࡞ΕΔ wࣗΛॴଐͤ͞ΔʹɺUBTLTͱ͍͏ϑΝΠϧʹࣗͷ1*%Λॻ͖ࠐ Ί0,ɻ •echo $$ > /sys/fs/cgroup/cpu/7th-engineer/tasks
Ұ࿈ͷॲཧΛͭͳ͛Δɻॱ൪ҙ mkdir -p /sys/fs/cgroup/cpu/7th-engineer unshare --fork --pid --mount --uts
echo $$ > /sys/fs/cgroup/cpu/7th-engineer/tasks chroot /root/7th-engineer cd / mount -t proc proc /proc hostname 7th-engineer.example bash -l ʮ͓·͡ͳ͍ʯతॲཧΛՃɻ্͔Βೖྗ࣮ͯ͠ߦͯ͠ΈΑ͏
͜Είϯςφʁ wγεςϜ͕%FCJBOͰ͋Δ wϓϩηε͕ಠཱ͍ͯ͠Δ wϗετ໊ҧ͏
ԋशͦͷ w ઌ΄Ͳͷʮࣗ࡞ίϯςφʯʹ͍ͭͯɺ ผͷλʔϛφϧ͔ΒϗετʹೖΓɺҎԼΛ͔֬ΊͯΈΑ͏ɻ w ϗετ͔Βݟͯίϯςφ͕ʮϓϩηεʯͰ͋Δ͜ͱ w
1*%ɺ.PVOUɺ654/BNFTQBDF͕͍ͯ͠Δ͜ͱ w ίϯςφͰ$16Λ͍͘Βͬͯɺϗετͷ$16Λ͔͠ Θͳ͘ͳΔΑ͏ɺDHSPVQΛઃఆͯ͠ΈΑ͏ɻ·ͨɺ֬ೝ͠Α͏ IJOUIUUQTBDDFTTSFEIBUDPNEPDVNFOUBUJPOKB+13FE@)BU@&OUFSQSJTF@-JOVY IUNM
[email protected]
@(VJEFTFDDQVIUNM
·ͱΊ
֮͑ͱ͘͜ͱͭ w-JOVYʹ͓͍ͯɺϓϩηεʹؔ͢Δͨ͘͞Μͷใ͕QSPDͷԼʹ ͋Δ͜ͱ w-JOVYίϯςφɺΧʔωϧͷϦιʔεʮʯͱʮ੍ݶʯͷػೳΛ ͬͨϓϩηεͰ͋Δ͜ͱ
֮͑ͱ͘͜ͱͭ w-JOVYʹ͓͍ͯɺϓϩηεʹؔ͢Δͨ͘͞Μͷใ͕QSPDͷԼʹ ͋Δ͜ͱ w-JOVYίϯςφɺΧʔωϧͷϦιʔεʮʯͱʮ੍ݶʯͷػೳΛ ͬͨϓϩηεͰ͋Δ͜ͱ wͲΜͳʹͦ͠͏ͳπʔϧͰɺ୭͔͕ॻ͍ͨͷͰ͋Γɺ ͦͯ͠044Ͱ͋ΔݶΓதΛਂ͘Δ͜ͱ͕Ͱ͖Δͱ͍͏͜ͱ
ࠓ͞ͳ͔ͬͨ͜ͱ wίϯςφؔ࿈ͷͦͷଞͷػೳͷօ͞Μ wQJWPU@SPPU w,FSOFM$BQBCJMJUZ w3FTPVSDF-JNJU SMJNJU wTFDDPNQ#1' w."$ 4&-JOVY"QQ"SNPS
-JOVY4FDVSJUZ.PEVMFT -4.
͞ΒͳΔਂΈ w͋ͷ!SZΛҭͯͨ ڈͷ࠲ֶࢿྉ wIUUQTTQFBLFSEFDLDPNVE[VSBUIFTLFMUPOPGXIBMFT