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! in RailsDM /container-ga-tokui-na-fri...
Search
KONDO Uchio
November 16, 2017
Technology
3
2.8k
コンテナは友だち! in RailsDM /container-ga-tokui-na-friends-in-railsdm
Rails Developers Meetup #7
https://techplay.jp/event/631428
KONDO Uchio
November 16, 2017
Tweet
Share
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
2.5k
Ruby x BPF in Action / RubyKaigi 2022
udzura
0
260
Narrative of Ruby & Rust
udzura
0
230
開発者生産性指標の可視化 / pepabo-four-keys
udzura
3
1.7k
Talk of RBS
udzura
0
460
Re: みなさん最近どうですか? / FGN tech meetup in 2021
udzura
0
790
Dockerとやわらかい仮想化 - ProSec-IT/SECKUN 2021 edition -
udzura
2
740
Device access filtering in cgroup v2
udzura
1
930
"Story of Rucy" on RubyKaigi takeout 2021
udzura
0
850
Other Decks in Technology
See All in Technology
LLM時代のパフォーマンスチューニング:MongoDB運用で試したコンテキスト活用の工夫
ishikawa_pro
0
170
5分でカオスエンジニアリングを分かった気になろう
pandayumi
0
260
[ JAWS-UG 東京 CommunityBuilders Night #2 ]SlackとAmazon Q Developerで 運用効率化を模索する
sh_fk2
3
460
Oracle Base Database Service 技術詳細
oracle4engineer
PRO
10
75k
Aurora DSQLはサーバーレスアーキテクチャの常識を変えるのか
iwatatomoya
1
1.2k
Django's GeneratedField by example - DjangoCon US 2025
pauloxnet
0
150
株式会社ログラス - 会社説明資料【エンジニア】/ Loglass Engineer
loglass2019
4
65k
AIのグローバルトレンド2025 #scrummikawa / global ai trend
kyonmm
PRO
1
310
AI時代を生き抜くエンジニアキャリアの築き方 (AI-Native 時代、エンジニアという道は 「最大の挑戦の場」となる) / Building an Engineering Career to Thrive in the Age of AI (In the AI-Native Era, the Path of Engineering Becomes the Ultimate Arena of Challenge)
jeongjaesoon
0
240
react-callを使ってダイヤログをいろんなとこで再利用しよう!
shinaps
2
260
Apache Spark もくもく会
taka_aki
0
130
今日から始めるAWSセキュリティ対策 3ステップでわかる実践ガイド
yoshidatakeshi1994
0
110
Featured
See All Featured
Done Done
chrislema
185
16k
Helping Users Find Their Own Way: Creating Modern Search Experiences
danielanewman
29
2.9k
Building Adaptive Systems
keathley
43
2.7k
For a Future-Friendly Web
brad_frost
180
9.9k
XXLCSS - How to scale CSS and keep your sanity
sugarenia
248
1.3M
CSS Pre-Processors: Stylus, Less & Sass
bermonpainter
358
30k
Building Applications with DynamoDB
mza
96
6.6k
RailsConf 2023
tenderlove
30
1.2k
Side Projects
sachag
455
43k
BBQ
matthewcrist
89
9.8k
Statistics for Hackers
jakevdp
799
220k
Fireside Chat
paigeccino
39
3.6k
Transcript
ා͘ͳ͍γεςϜϓϩάϥϛϯάGPS3BJMT%. ۙ౻Ӊஐ࿕(.01FQBCP *OD 3BJMT%FWFMPQFST.FFUVQ ίϯςφ༑ͩͪʂ
ΤϯδχΞ ۙ౻Ӊஐ࿕!VE[VSB ٕज़෦ٕज़ج൫νʔϜ ͖ͳϥʔϝϯΒʔΊΜཾ (.0ϖύϘॴଐ
ུྺ w&$αΠτɺιʔγϟϧήʔϜͷ։ൃͳͲΛܦͯɺ ΑΓ(.0ϖύϘٕज़ج൫νʔϜɺಉԬʹҠॅɻ ͖ͳϥʔϝϯΒʔΊΜཾɺ͖ͳΧϨʔ5JLJɻ wஶॻʹʰύʔϑΣΫτ3VCZPO3BJMTʱ΄͔ɻ w3VCZ,BJHJʹࣗ࡞ίϯςφʮ)BDPOJXBʯͷ͕࠾ɻ w3BJMT(JSMT'VLVPLBΦʔΨφΠβɺԬ3VCZձ࣮ٞߦҕһɻ w΄͔ɺ3VCZίϯςφʹؔ͢Δ׆ಈଟɻ
࠷ۙͷࣄͷએͰ͢ w3VCZPO3BJMT͕͑ΔϗεςΟϯάαʔϏεͷ ΞʔΩςΫτʢࣗশʣΛ͍ͬͯ·͢ɻ wϑϩϯτΤϯυ/VYUKT &YQSFTTɺ443Ͱ͢ w෦"1*(Pͷ&DIPͰ͢ wྶΔͣ wࠓͷॴЋఏڙதɻ͓ͪΛ
Ԭ3VCZձٞ! IUUQSFHJPOBMSVCZLBJHJPSHGVLVPLB ചΓΕ·ͨ͠
ؓ ٳ
ࠓͷΞδΣϯμ w ϓϩηεͱԿͩΖ͏ʁ w ίϯςφͱԿͩΖ͏ʁ w ΈΜͳίϯςφʹͳͬͯΈΑ͏ʁʁʁ
ϓϩηεͱʁ
'SPNް͍ຊ w-*/69ϓϩάϥϛϯάΠϯλʔϑΣʔε ΦϥΠϦʔ ͜ͷதͰҰ൪ް͍ຊ
ϓϩηεͱϓϩάϥϜͷ࣮ߦதͷ࢟Ͱ͢ ʮϓϩηεͱɺϓϩάϥϜͷ࣮ߦʹඞཁ ͳγεςϜϦιʔεΛׂΓͯΔͨΊɺΧʔ ωϧ͕ఆٛ͢ΔநΤϯςΟςΟͰ͋Δʯͱ ݴ͍͑ΒΕ·͢ɻ ʰ-JOVYϓϩάϥϛϯάΠϯλʔϑΣʔεʱষϓϩηε
ϓϩηεͱ৮Ε߹͏ wʮϓϩάϥϜͷ࣮ߦʹඞཁͳϦιʔεʯΛ͍ͯΈΔ wͦΕ͕ɺ͢ͳΘͪϓϩηεଐੑͰ͋Δ wྫ w 1*%ɺ1*% w εςʔλεʢ࣮ߦՄೳɺ*0ͪɺʣ w ڥม
w ϑΝΠϧσΟεΫϦϓλςʔϒϧ w 6TFS*%(SPVQ*% w ݖݶʢ,FSOFM$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
ղྫ wσϞ͠·͢ w(JTUIUUQCJUMZSENDPOUBJOFST
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 $ (PMBOH 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$16ͷར༻Ͱ͋ͬͨΓɺϝϞϦͰ͋ͬͨ Γɺ1*%ͷͰ͋ͬͨΓɺͷ੍ݶΛ͔͚Δ͜ͱ͕Ͱ͖Δɻ͋Δ͍ɺ άϧʔϓผͷར༻ঢ়گΛ֬ೝͨ͠ΓͰ͖Δ wDHSPVQʹؔ͢Δૢ࡞ɺDHSPVQGTͱ͍͏ಛघϑΝΠϧγεςϜΛ ܦ༝ͯ͠Ͱ͖Δ
࣮ࡍͷ੍ݶΛ֬ೝ •docker run --pids-limit=128 -ti debian:jessie /bin/bash wͷΑ͏ͳίϚϯυͰɺϓϩηεͷDHSPVQ੍ݶΛ͔͚ΒΕΔ w͜ͷγΣϧͰɺGPSLCPNC߈ܸΛͯ͠ɺؼͬͯ͘Δ
None
ͦͷଞͷػೳ wDISPPU Ͱɺಠཱͨ͠ϑΝΠϧγεςϜπϦʔʹʮೖΓࠐΉʯ wηΩϡϦςΟपΓͷػೳ੍ݶ w,FSOFM$BQBCJMJUZͰSPPUͷػೳΛߜΓࠐΉʢٯવΓʣ wTFDDPNQͰɺγεςϜίʔϧ୯Ґͷݺͼग़͠ΛϑΟϧλʔ w."$ .BOEBUPSZ"DDFTT$POUSPM 4&-JOVY
"QQ"SNPS
ΈΜͳίϯςφʹ ͳͬͯΈΑ͏ʁʁʁ
͜͜·Ͱͷ·ͱΊ wίϯςφͨͩͷ ϓϩηεɻා͘ͳ͍Αʂ
ͱ͍͏͜ͱͰ wίϯςφΛܰʙ͘ϋϯυϝΠυͯ͠Έ·͠ΐ͏͔ɻ
ಠཱͨ͠SPPUʹ͍Δ wEFCPPUTUSBQͱݴ͏ίϚϯυͰɺ%FCJBOͷϑΝΠϧγεςϜ͚ͩΛ ४උͰ͖Δɻ wDISPPU ͱݴ͏ίϚϯυͰɺͦͷதʹೖΔ͜ͱ͕Ͱ͖·͢ w ࣮%PDLFSͳ͠Ͱɺ6CVOUVͷதͰ%FCJBOڥΛಘΔ͜ͱͰ͖Δ mkdir
/root/railsdm-7th debootstrap --variant=minbase \ jessie \ /root/railsdm-7th \ http://ftp.jp.debian.org/debian
None
/BNFTQBDFΛ͢Δ wVOTIBSFͱݴ͏ίϚϯυΛ͏ͱͰ͖Δ •unshare --fork --pid --mount --uts wͷΑ͏ʹͯ͠ɺ1*%/BNFTQBDFɺ.PVOU/BNFTQBDFɺ654 /BNFTQBDFΛͰ͖Δ
ʢGPSL1*%/BNFTQBDFͷ༷ʹΑΔ੍ݶʣ
DHSPVQͷ੍ݶΛ͔͚Δ w৽͍͠DHSPVQɺ NLEJSͳͲͰ؆୯ʹ࡞ΕΔ wࣗΛॴଐͤ͞ΔʹɺUBTLTͱ͍͏ϑΝΠϧʹࣗͷ1*%Λॻ͖ࠐ Ί0,ɻ •echo $$ > /sys/fs/cgroup/cpu/7th-engineer/tasks
Ұ࿈ͷॲཧΛͭͳ͛Δ $ cat after-unshare.rb #!/usr/bin/env ruby container_name = ARGV[0]
raise unless container_name Dir.mkdir "/sys/fs/cgroup/cpu/#{container_name}" rescue puts("skip") File.write "/sys/fs/cgroup/cpu/#{container_name}/tasks", $$.to_s Dir.chroot "/root/#{container_name}" Dir.chdir "/" system "mount -t proc proc /proc" system "hostname #{container_name}.example.jp" exec "bash -l" ࠷ॳʹɺʮVOTIBSFޙʯͷॲཧΛ3VCZͰॻ͘
Ұ࿈ͷॲཧΛͭͳ͛Δɻ $ sudo unshare \ > --fork \ >
--pid \ > --mount \ > --uts \ > `pwd`/after-unshare.rb railsdm-7th ઌ΄ͲͷεΫϦϓτʹ࣮ߦݖݶΛ͚ͭͯVOTIBSFͷҾʹ
͜Είϯςφʁ wγεςϜ͕%FCJBOͰ͋Δ wϓϩηε͕ಠཱ͍ͯ͠Δɺϗετ໊ҧ͏
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.
ѹతࢀߟจݙ w ϖʔδͷຊΛಡΉલʹಡΜͰ͓͖͍ͨ wʮͳΔ΄Ͳ6OJYϓϩηεʯ wIUUQTUBUTV[JOFDPNCPPLTOBSVIPVOJY
͞ΒͳΔਂΈ w(.0ϖύϘڈͷ࠲ֶࢿྉ wIUUQTTQFBLFSEFDLDPNVE[VSBUIFTLFMUPOPGXIBMFT
13
ίϯςφϨΠϠͷࣄ ԬͰͷࠊΛਾٕ͑ͨज़త ͝ڵຯ͕͋Ε૬ஊʹΓ·͢ GPMMPX!QC@SFDSVJU ͘͠!VE[VSBʹ