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
CRIUをホスティングで試していく #hostingcasual / My CRIU Life...
Search
KONDO Uchio
March 22, 2019
Technology
0
400
CRIUをホスティングで試していく #hostingcasual / My CRIU Life in Progress
@ホスティングカジュアル #5
直近のイベント宣伝等を抜いています。
KONDO Uchio
March 22, 2019
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
2.3k
Ruby x BPF in Action / RubyKaigi 2022
udzura
0
220
Narrative of Ruby & Rust
udzura
0
190
開発者生産性指標の可視化 / pepabo-four-keys
udzura
3
1.6k
Talk of RBS
udzura
0
410
Re: みなさん最近どうですか? / FGN tech meetup in 2021
udzura
0
740
Dockerとやわらかい仮想化 - ProSec-IT/SECKUN 2021 edition -
udzura
2
700
Device access filtering in cgroup v2
udzura
1
820
"Story of Rucy" on RubyKaigi takeout 2021
udzura
0
770
Other Decks in Technology
See All in Technology
設計を積み重ねてシステムを刷新する
sansantech
PRO
0
180
いまからでも遅くない!コンテナでWebアプリを動かしてみよう!コンテナハンズオン編
nomu
0
170
AIエージェント開発のノウハウと課題
pharma_x_tech
7
4.1k
ディスプレイ広告(Yahoo!広告・LINE広告)におけるバックエンド開発
lycorptech_jp
PRO
0
470
Ruby on Railsで持続可能な開発を行うために取り組んでいること
am1157154
3
160
IAMポリシーのAllow/Denyについて、改めて理解する
smt7174
2
210
Охота на косуль у древних
ashapiro
0
110
マーケットプレイス版Oracle WebCenter Content For OCI
oracle4engineer
PRO
3
530
Change Managerを活用して本番環境へのセキュアなGUIアクセスを統制する / Control Secure GUI Access to the Production Environment with Change Manager
yuj1osm
0
110
What's new in Go 1.24?
ciarana
1
110
あなたが人生で成功するための5つの普遍的法則 #jawsug #jawsdays2025 / 20250301 HEROZ
yoshidashingo
2
310
AWSアカウントのセキュリティ自動化、どこまで進める? 最適な設計と実践ポイント
yuobayashi
7
850
Featured
See All Featured
XXLCSS - How to scale CSS and keep your sanity
sugarenia
248
1.3M
Bootstrapping a Software Product
garrettdimon
PRO
306
110k
How to Ace a Technical Interview
jacobian
276
23k
4 Signs Your Business is Dying
shpigford
182
22k
Documentation Writing (for coders)
carmenintech
67
4.6k
The World Runs on Bad Software
bkeepers
PRO
67
11k
The Psychology of Web Performance [Beyond Tellerrand 2023]
tammyeverts
46
2.3k
For a Future-Friendly Web
brad_frost
176
9.6k
Sharpening the Axe: The Primacy of Toolmaking
bcantrill
40
2k
ReactJS: Keep Simple. Everything can be a component!
pedronauck
666
120k
[Rails World 2023 - Day 1 Closing Keynote] - The Magic of Rails
eileencodes
33
2.1k
Put a Button on it: Removing Barriers to Going Fast.
kastner
60
3.7k
Transcript
ϗεςΟϯάͰ$3*6Λ͓͏ ۙ౻Ӊஐ࿕(.01FQBCP *OD ϗεςΟϯάΧδϡΞϧ <)BDPOJXB$3*6ਐḿ><ݕࡧ>
γχΞɾϓϦϯγύϧΤϯδχΞ ۙ౻ Ӊஐ࿕ / @udzura https://blog.udzura.jp/ Uchio Kondo ٕज़෦ ٕज़ج൫νʔϜ
ίϯςφ
None
ϗεςΟϯάʹಋೖ
Web Proxy Web Request Dispatcher FastContainer Runtime CMDB ❌ FastContainer
Killed 1. Check 2. Boot 3. Forward 4. Terminate
ϦΫΤετ Ұఆ࣌ؒͷఀࢭ ఀࢭޙͷ࣍ͷϦΫΤετͰ Ұ͔Βىಈ OHY@NSVCZ $POUBJOFST ݱࡏͷڍಈ
࠶ىಈͷίετ
None
Memory dump Network conf File descriptors cgroup params ...... CRIU
Target process Syscalls, /proc files ... Kernel $3*6ͰΠϝʔδΛ࡞ɺ͔ͦ͜Βىಈ ˞ࢀߟ
ϦΫΤετ ఀࢭޙͷ࣍ͷϦΫΤετͰ $3*6Πϝʔδ͔Βىಈ OHY@NSVCZ $3*6ಋೖ ඇಉظͰ Πϝʔδͷ࠶࡞ $POUBJOFST $3*6JNBHF
ޮՌଌఆ
ڥ Ұ෦ Bench(Bastion) Compute(Users) Web Proxy Core API CMDB 8
Core 51GB Mem 1 Core 2GB Mem
ܭଌ݁Ռ
ܭଌ݁Ռ DPOUFOUSPPUFYU
ܭଌ݁Ռ
ܭଌ݁Ռ 3FTQPOTF5JNF NT ✴"QBDIF͕Ϩεϙϯε Λฦͨ࣌ؒ͠Λൺֱɻ ✴"QBDIFͯ͢ͷϫʔ Χʔ্ཱ͕͕ͪΔલʹ ϨεϙϯεΛฦͤΔ͜ ͱ͕ޙʹΘ͔ͬͨ
࣮
ϦετΞ͞ΕͨϓϩηεΛɺ )BDPOJXBͷԼʹ͍ͨ͠ɻ Haconiwa sv-sv \- criu restore \- Container Haconiwa
sv-sv \- Haconiwa sv \- Container ௨ৗىಈ CRIUܦ༝ͷىಈ ϑοΫॲཧ ओʹ͜͜Ͱߦ͏ ʁʁʁ
ํ๏ TXSLNPEF SFTUPSFTJCMJOH shd: vagrant@pts/0 \_ -bash \_ sudo
../mruby/bin/mruby example/restore_child.rb \_ ../mruby/bin/mruby example/restore_child.rb <- libcriuΛݺͼग़ͨ͠mruby script \_ /usr/local/apache2/bin/httpd -DFOREGROUND -X <- ͜Ε͕ίϯςφϓϩηε \_ /usr/local/sbin/criu swrk 6 <- ͜Ε͕swrkϞʔυͰ্ཱ͕ͪͬͨαʔϏεͰɺ cr_restore_tasks() ͜͜ͰಡΜͰ͍Δ \_ sh -c ps auxf <- ֬ೝͷͨΊʹ system() ͨ͠ͷ \_ ps auxf
$3*6ͷTXSLNPEF w·ͣTXSLϞʔυͷઆ໌Ͱ͕͢ɺ͜ΕMJCDSJVͰؔΛݺͼग़ͨ͠ࡍʹɺ ΞυϗοΫʹDSJVόΠφϦͦͷͷΛݺͼग़ͯ͠αʔϏεΛ࡞͠ɺݟ͔͚ ্αʔϏεͳ͠ͰDSJVͷػೳΛ͏ϞʔυͰ͢ʢਤ̎ࠨʣɻ
DMPOF $-0/&@1"3&/5 $ ./clone-tarou parent --use-clone-parent [!] Hey, maybe a
new sibling is added 26627 pts/1 S+ 0:00 \_ ./clone-tarou parent --use-clone-parent 26628 pts/1 S+ 0:00 \_ clone-tarou tarou --use-clone-parent 26629 pts/1 S+ 0:00 \_ clone-tarou jirou [!] exit: PID=26628 [!] exit: PID=26629 <DMPOFͷ$-0/&@1"3&/5ϑϥάͷڍಈΛ؍͢Δ><ݕࡧ>
clone(fun, ..., CLONE_PARENT|CLONE_NEWPID) ɺΧʔωϧͷόʔδϣϯʹΑͬͯ ಈ͔ͳ͍Β͍͠ $3*6ͷίϝϯτΑΓ
ํ๏ FYFDDNEͬͪ͜Λ࠾༻ Haconiwa sv \- criu restore \- Container
Haconiwa sv \- haconiwa _restored \- Container FYFD XBJU wDSJVίϚϯυͰϦετΞ͔ͯ͠ΒɺҙͷϓϩάϥϜʹFYFDWF Ͱ͖Δ wFYFDલʹGPSLͨ͠ϓϩηεΛɺ৽͍͠ϓϩάϥϜଆͰXBJU Ͱ͖Δ
&YUFSOBMCJOENPVOUରԠ /path/to/pivot_root `- / (bind-mount self) `- /etc -> /other/etc
`- /home/foo -> /other2/home `- /var/log -> /other3/log wSPPUGTͷ֎ଆʹ͋ΔϑΝΠϧγεςϜSPPUΛCJOENPVOUͯ͠ɺ DISPPUQJWPU@SPPU ͔ͯ͠Β͑ΔΑ͏ʹ͢Δ͜ͱ͕Α͋͘Δ™ wͦ͏͍͏֎ଆͷϑΝΠϧγεςϜΛ$3*6͕ཧղͰ͖ΔΑ͏ʹ͢Δ ͜͜ʹpivot_root
&YUFSOBMCJOENPVOU͕͏·͍͔͘Μ
Φϓγϣϯ͗͢ΜͶΜ
Ṗʹͭͳ͕Βͳ͍ωοτϫʔΫ
ωοτϫʔΫϩοΫ͕1"5)͕ͳ͍ͷͰ ղআ͞Εͳ͍ɻ
ͯ͠Δʁ Hotstart Start from CRIU
Web Proxy Web Request Dispatcher FastContainer Runtime CMDB ❌ FastContainer
Killed 1. Check 2. Boot 3. Forward 4. Terminate 'BTU3FNPUF$IFDLͱ͍͏ NHFNΛར༻͍ͯͬͯ͠Δ͕ɺ ઃఆ͕มʁ
'BTU3FNPUF$IFDLͷύϥϝʔλௐ
None
IUUQTHJUIVCDPNIBDPOJXBIBDPOJXBQVMMT RJT"QS JT"DMPTFE ͦͷ΄͔ wࡉʑͱࠔͬͨ͜ͱ͕͕͋ͬͨɺׂͱҰ௨ΓରԠͰ͖ͨؾ͕͢Δɻ wԼهࢀߟΣοϒϖʔδͰ͢
ࠓޙ
ϦϦʔεͰ͖ΔΑ͏ؤுΔͧʙ OPEB͞Μ͕
(SFOBEJOFͱ͍͏ͷΛ࡞ͬͨ
None