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
circuit_switch: small start to create gem
Search
makicamel
October 10, 2021
Programming
3
2.7k
circuit_switch: small start to create gem
at 2021.10.10. Kaigi on Rails _2021_ new
makicamel
October 10, 2021
Tweet
Share
More Decks by makicamel
See All by makicamel
First step to PicoRuby
makicamel
1
87
PicoRuby on Rails
makicamel
3
170
Take a small step beyond the api
makicamel
2
130
Road to RubyKaigi: Making Tinny Chiptunes with Ruby
makicamel
4
1.5k
Road to RubyKaigi
makicamel
3
490
Rails アプリ地図考 Flush Cut
makicamel
1
180
ErdMap: Thinking about a map for Rails applications
makicamel
2
3.6k
dRuby 入門者によるあなたの身近にあるdRuby 入門
makicamel
4
1.3k
BulletmarkRepairer: auto corrector for N+1 queries
makicamel
10
7.6k
Other Decks in Programming
See All in Programming
The State of Fluid (2025)
s2b
0
150
自作OSでDOOMを動かしてみた
zakki0925224
1
1.3k
Terraform やるなら公式スタイルガイドを読もう 〜重要項目 10選〜
hiyanger
13
3.1k
管你要 trace 什麼、bpftrace 用下去就對了 — COSCUP 2025
shunghsiyu
0
410
マイコンでもRustのtestがしたい その2/KernelVM Tokyo 18
tnishinaga
2
2.3k
あなたとJIT, 今すぐアセンブ ル
sisshiki1969
1
640
Portapad紹介プレゼンテーション
gotoumakakeru
1
130
Webinar: AI-Powered Development: Transformiere deinen Workflow mit Coding Tools und MCP Servern
danielsogl
0
120
抽象化という思考のツール - 理解と活用 - / Abstraction-as-a-Tool-for-Thinking
shin1x1
1
980
Gemini CLIの"強み"を知る! Gemini CLIとClaude Codeを比較してみた!
kotahisafuru
3
1k
一人でAIプロダクトを作るための工夫 〜技術選定・開発プロセス編〜 / I want AI to work harder
rkaga
12
2.6k
新世界の理解
koriym
0
130
Featured
See All Featured
Into the Great Unknown - MozCon
thekraken
40
2k
The Art of Delivering Value - GDevCon NA Keynote
reverentgeek
15
1.6k
Designing for humans not robots
tammielis
253
25k
Helping Users Find Their Own Way: Creating Modern Search Experiences
danielanewman
29
2.8k
Documentation Writing (for coders)
carmenintech
73
5k
Designing Experiences People Love
moore
142
24k
Art, The Web, and Tiny UX
lynnandtonic
301
21k
Understanding Cognitive Biases in Performance Measurement
bluesmoon
29
1.8k
Optimising Largest Contentful Paint
csswizardry
37
3.4k
For a Future-Friendly Web
brad_frost
179
9.9k
Dealing with People You Can't Stand - Big Design 2015
cassininazir
367
26k
The Invisible Side of Design
smashingmag
301
51k
Transcript
DJSDVJU_TXJUDI ͍ͪ࢝͘͞ΊΔHFNͮ͘Γ 2021.10.10. Kaigi on Rails _2021_ new @makicamel
w!NBLJDBNFMݪສق w3VCZͱϏʔϧɹɹͱ͓ञ͕͖ w͖ͳ73ήʔϜ ࣗݾհ
࠷ۙࠔ͍ͬͯΔ͜ͱ ͓ࣄͰ
ো͕ଟ͍
•ӨڹൣғௐࠪΛ͕ΜΖ͏ •ϨϏϡʔΛ͕ΜΖ͏ •ࣗಈςετͷՃɾϝϯςΛ͕ΜΖ͏ •खಈςετΛ͕ΜΖ͏ •ΤϥʔࢹΛ͕ΜΖ͏ োΛىͨ͜͠ਓྨͷߟ͕͑ͪͳ͜ͱ ͬͱ ͬͱ ͬͱ ͬͱ
ͬͱ
͕ΜΓͨ͘ͳ͍
•͕ΜΔͱϛεΔ •͕ΜΓݸਓʹґଘ •͕ΜΔͱർΕΔ •͕ΜΔӬԕʹܧଓͰ͖ͳ͍ ͕ΜΓͨ͘ͳ͍
ΈͰͳΜͱ͔͍ͨ͠
ɹো͕ଟ͍ΜͰ͢Α…😣 ɹ90% ϛε͕ͳ͍͜ͱͷอূͦͦ͜͜Ͱ͖Δ͚Ͳ ɹ100% ϛε͕ͳ͍͜ͱͷอূͱͯߴίετ ɹϦϦʔεසΛ্͛Δͷ͕ͯ͘͠…😭 ɹ͙͢ʹΓͤΔΑ͏ʹͨ͠ํ͕ ɹ݈શ͔͠Ε·ͤΜͶ
•ϦϦʔεिʹ 1 ճ ˞ ˞োରԠΛআ͘
•ϦϦʔεिʹ 1 ճ •100ʙ200 Pull Requests •500ʙ1,000 commits •10Kʙ60K lines
˞ ϏοάόϯϦϦʔε ˞Ұ൪ݹ͘ػೳ͕ଟ͍ϞϊϦγοΫϦϙδτϦʹ͓͚Δɻଟ͘ͷଞϦϙδτϦͬͱԺ͔Ͱ͢ ˞োରԠΛআ͘ ˞
ϦϦʔείετ͕ߴͯ͘ো͕ଟ͘ɾେ͖͘ͳΓ͕ͪ ো͕ଟͯ͘ϦϦʔεසΛ্͛ΒΕͳ͍ ϏοάόϯϦϦʔε
ͱ͍͏Θ͚Ͱ
ͭͬͨ͘ NBLJDBNFMDJSDVJU@TXJUDI IUUQTHJUIVCDPNNBLJDBNFMDJSDVJU@TXJUI
circuit_switch
ɹো͕ଟ͍ΜͰ͢Α…😣 ɹ90% ϛε͕ͳ͍͜ͱͷอূͦͦ͜͜Ͱ͖Δ͚Ͳ ɹ100% ϛε͕ͳ͍͜ͱͷอূͱͯߴίετ ɹϦϦʔεසΛ্͛Δͷ͕ͯ͘͠…😭 ɹ͙͢ʹΓͤΔΑ͏ʹͨ͠ํ͕ ɹ݈શ͔͠Ε·ͤΜͶ
circuit_switch Γ͍ͨ͜ͱɿ ϦϦʔεසΛ͋͛Δ ˞ϦϦʔεස͍͋͛ͨͰ͢
circuit_switch Γ͍ͨ͜ͱɿ ίετʹΓ͢
circuit_switch if CircuitSwitch.open?(close_if_reach_limit: false) do_something_experimental else call_existing_codes end
CircuitSwitch.report(if: unexpected_happen)
circuit_switch if CircuitSwitch.open?(close_if_reach_limit: false) do_something_experimental else call_existing_codes end
circuit_switch •CircuitSwitch ͕։͍͍ͯΔ࣌ do_something_experimental ΛݺͿ •CircuitSwitch ͕ด͡ΒΕͨ࣌ call_existing_codes ΛݺͿ
if CircuitSwitch.open?(close_if_reach_limit: false) do_something_experimental else call_existing_codes end
circuit_switch •CircuitSwitch ͷ։ด݅ نఆ্ݶճʹ౸ୡ ։์݅ͱҰக ด݅ͱҰக ৗ࣮࣌ߦʴڧ੍ด
circuit_switch •CircuitSwitch ͷ։ด݅ if CircuitSwitch.open?(reach_limit: 100) do_something_experimental else call_existing_codes
end نఆ্ݶճʹ౸ୡ ։์݅ͱҰக ด݅ͱҰக ৗ࣮࣌ߦʴڧ੍ด
circuit_switch if CircuitSwitch.open?(if: current_user.testing?) do_something_experimental else call_existing_codes end •CircuitSwitch
ͷ։ด݅ نఆ্ݶճʹ౸ୡ ։์݅ͱҰக ด݅ͱҰக ৗ࣮࣌ߦʴڧ੍ด
circuit_switch if CircuitSwitch.open?( close_if: Date.today > some_period ) do_something_experimental
else call_existing_codes end •CircuitSwitch ͷ։ด݅ نఆ্ݶճʹ౸ୡ ։์݅ͱҰக ด݅ͱҰக ৗ࣮࣌ߦʴڧ੍ด
circuit_switch rake circuit_switch:terminate_to_run [/app/services/greetings_service:21 block in
validate] •CircuitSwitch ͷ։ด݅ if CircuitSwitch.open?(close_if_reach_limit: false) do_something_experimental else call_existing_codes end نఆ্ݶճʹ౸ୡ ։์݅ͱҰக ด݅ͱҰக ৗ࣮࣌ߦʴڧ੍ด
circuit_switch CircuitSwitch.report(if: unexpected_happen) •CircuitSwitch ͕։͍͍ͯΔ࣌ report ΛૹΔ •Slack
Bugsnag ͳͲҙͷϨϙʔτπʔϧΛࢦఆ •։ด݅ open? ͱྨࣅͷ݅Λࢦఆ
circuit_switch •ґଘϥΠϒϥϦ •ActiveRecord •࣮ߦߦʢcallerʣɾCircuitSwitch ͷ։ดঢ়ଶΛ DB ʹอଘ •ActiveJob •DB ߋ৽ɾϨϙʔτ
circuit_switch •ίʔυϦʔμʔͷΈͲ͜Ζ
circuit_switch •ίʔυϦʔμʔͷΈͲ͜Ζ •ͳ͍
circuit_switch •ίʔυϦʔμʔͷΈͲ͜Ζ •ͳ͍ •ͳ͍ͷ͕ΈͲ͜Ζʢʁʣ
ΈͲ͜Ζ •ԿมΘͬͨ͜ͱΛ͍ͬͯͳ͍ •Rails ͷίʔυ͕ॻ͚ͨΒॻ͚Δ •ࠓ͙͢ॻ͖࢝ΊΒΕΔ
ΈͲ͜Ζ •;ͭ͏ͷ Rails ΞϓϦ͕ґଘ͍ͯ͠ΔϥΠϒϥϦʹґଘ •ࠓ͙͢ಋೖͰ͖Δ
ͱ͜ΖͰ͓ؾ͖͔ͮͱࢥ͍·͕͢
Inspired by •Feature Toggles •CircuitBreaker 'FBUVSF5PHHMFTNBSUJOGPXMFSDPN IUUQTNBSUJOGPXMFSDPNBSUJDMFTGFBUVSFUPHHMFTIUNM $JSDVJU#SFBLFSNBSUJOGPXMFSDPN
IUUQTNBSUJOGPXMFSDPNCMJLJ$JSDVJU#SFBLFSIUNM
Feature Toggles •৽ػೳΛಛఆϢʔβʹ҆શɾ͔ʹఏڙ͢ΔͨΊͷΈ •ؔ࿈ɿDark Launch •🙅 େن feature ϒϥϯν্Ͱͷ։ൃ
🙆 master(main) ϒϥϯνʹ߹ྲྀͨ͠։ൃ 'FBUVSF5PHHMFTNBSUJOGPXMFSDPN IUUQTNBSUJOGPXMFSDPNBSUJDMFTGFBUVSFUPHHMFTIUNM
Feature Toggles •ΧφϦΞϦϦʔε •ϥϯμϜબग़ͷۃҰ෦ͷҰൠϢʔβʹػೳ։์༷ͯ͠ࢠݟ •A / B ςετ 'FBUVSF5PHHMFTNBSUJOGPXMFSDPN
IUUQTNBSUJOGPXMFSDPNBSUJDMFTGFBUVSFUPHHMFTIUNM
CircuitBreaker •αʔόʹಛఆճҎ্ͷো͕ൃੜͨ࣌͠ʹ ϦΫΤετΛड͚͚ͣʹΤϥʔΛฦ͢Έ •োͷ࿈తͳൃੜΛ͙ •αʔό͕վળͨ͠ΒࣗಈͰ෮ؼ͢Δ $JSDVJU#SFBLFSNBSUJOGPXMFSDPN IUUQTNBSUJOGPXMFSDPNCMJLJ$JSDVJU#SFBLFSIUNM
Inspired by … ?
Inspired by … ? •ΠϯεύΠΞ͞Εͨͱ͍͏ʹΈ͕͠ΐ΅͍ •τάϧͷཧʹ͕͋Δ •ϒϨʔΧʔΛམͱ͕݅ͨͩ͢ͷճ •ࣗಈ෮ؼ͠ͳ͍ •DB ΞΫηεΛ͢ΔͷͰΦʔόʔϔου͕ੜ͡Δ
ɹো͕ଟ͍ΜͰ͢Α…😣 ɹ90% ϛε͕ͳ͍͜ͱͷอূͦͦ͜͜Ͱ͖Δ͚Ͳ ɹ100% ϛε͕ͳ͍͜ͱͷอূͱͯߴίετ ɹϦϦʔεසΛ্͛Δͷ͕ͯ͘͠…😭 ɹ͙͢ʹΓͤΔΑ͏ʹͨ͠ํ͕ ɹ݈શ͔͠Ε·ͤΜͶ
Ұूத •΄͍͠ͷʮίετʹΓͤΔʯΈ •ͱʹ͔͘ࠓ΄͍͠ ػೳ͚ͩΛ࣮ͯ͠ϦϦʔε
ॠൃྗ •ͱΓ͋͑ͣ΄͔ͬͨ͠ •ϨϏϡʔɾௐࠪɾςετίετ͕૿େ͍ͯ͠Δঢ়گΛվળ͍ͨ͠ •ݱͷࠓ͋Δ՝Λࠓ͙͢ղܾ͍ͨ͠ •Γͳ͍ࣝɾٕज़ͨ͘͞Μ͋Δ •४උ͕Ͱ͖Δ·Ͱͭͱ͋ͬͱ͍͏ؒʹ݄͕ա͗Δ
ॠൃྗ •MVP •Minimum Viable Product •࣮༻࠷খݶͷ •ఏڙ͠ͳ͕Β։ൃ͢Δ
Βͳ͍ཧ༝ •ͦ͏͔͠Εͳ͍ •ͦ͏Ͱͳ͍͔͠Εͳ͍ •OSS ʹ͓͚ͯ͠୭͔ͷʹཱ͔ͭ͠Εͳ͍ •OSS ʹ͠ͳ͍ཧ༝ͳ͍ ɹgem ʹ͠ͳ͍͍ͯ͘Μ͡Όͳ͍ʁ
՝ʹΞϓϩʔν͢Δ •ίʔυͷ͠͞ͱϥΠϒϥϦͷՁؔͳ͍ ɹ͜Μͳ͠ΐ΅͍ίʔυΛੈʹग़͢ͳΜͯ…
·͍ͣͪ࢝͘͞ΊΔ
͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠