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レガシーRailsアプリとの付き合い方について考える
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Yusaku ONO
November 17, 2017
Technology
2
400
レガシーRailsアプリとの付き合い方について考える
2018/11/17 万葉社内で発表した資料です
Yusaku ONO
November 17, 2017
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Transcript
ϨΨγʔ Rails ΞϓϦͱͷ ͖߹͍ํʹ͍ͭͯߟ͑Δ 2017/11/17 @yono
͜ͷࢿྉʹ͍ͭͯ • ࣾͰൃදͨ͠ࢿྉΛެ։͠·͢ • લ৬ͷܦݧΛࠓͷձࣾ(ສ༿)Ͱڞ༗͠Α͏ͱ ͍͏Ϟνϕʔγϣϯ͔Β࡞Γ·ͨ͠
ࠓͷ͓ॻ͖ • ͖߹͍ํͱ • ͦͷଞখωλʢ͕࣌ؒ͋Εʣ
ϨΨγʔ Rails ΞϓϦͱͷ͖߹͍ํͱ • Ruby/Rails όʔδϣϯΞοϓσʔτ • ӡ༻อकΛҾ͖ܧ͙ • ৽͍͠αʔόʔʹҠߦ͢Δ
• ഇࢭͯ͠ผγεςϜʹҠߦ͢Δ • => ಈ͔͠ଓ͚Δʢ߹͕ଟ͍ʣ
ಈ͔͠ଓ͚ΔͨΊʹ • ಈ͘ڥΛҡ࣋͢Δ • ߹ʹΑͬͯίʔυΛ͢ • ։ൃڥ͕ཉ͍͠ • อकʹ͓͍ͯιʔείʔυͦͷͷ͚ͩͰͳ͘ ڥߏஙڥҡ͕࣋ωοΫʹͳΔ߹͋Δ
ڥΛΔ • Rails ͷΠϯετʔϧํ๏ • Ruby ͷΠϯετʔϧํ๏ • σʔλϕʔε •
Web αʔόʔ / ΞϓϦέʔγϣϯαʔόʔ • ಈ࡞OS
Rails ͷΠϯετʔϧํ๏ • όʔδϣϯ͕໌ه͞Εͯͳ͍߹ʹಛఆ͢ΔࡐྉʹͳΔ • bundle install • gem install
rails • apt-get install rails ʢDebian ܥݶఆʣ • apt ܦ༝ͰΠϯετʔϧ͢Δͱ gem list ʹݱΕͳ͍ • gem list ʹݱΕͳ͍ͷʹ rails ίϚϯυ͕ଘࡏ͢Δ߹͜ ΕΛٙͬͯΈΔ
ͪͳΈʹ apt-get ͱ • Debianܥͷ OS ʹࡌ͞Ε͍ͯΔύοέʔδ Ϛωʔδϟʔ • CentOS
Ͱݴ͏ͱ͜Ζͷ yum • ྫ: apt-get install postgresql • աڈͷ apt Ͱ rails ͳͲͷ gem ͕ύοέʔδͱͯ͠ ఏڙ͞Ε͍ͯͨ
Ruby ͷΠϯετʔϧํ๏ • γεςϜΠϯετʔϧ (apt, yumʣ • جຊతʹݹ͍ʢྫ: CentOS6 =>
1.8.7ʣ • ࣮֬ʹϏϧυͰ͖ΔͷͰ҆৺ • rbenv • σϑΝΫτʁ • Ϗϧυ͢ΔͷʹҰ͍Δ߹͋Δ • Cron ܦ༝Ͱಈ͔͢ͱ͖ʹҰۤ࿑ • rvm • ͋·ΓΘΕͳ͘ͳͬͨ • ϏϧυͰ͖ΔΑ͏ʹσϑΥϧτͰύονΛ͋ͯͯ͘ΕΔ߹͋Γ
σʔλϕʔε • PostgreSQL / MySQL ͩͱخ͍͠ • ͨ·ʹ SQL Server
ͱ͔͋Γ·͢ • ΫϥαόͰΘΕ͍ͯΔDBʢSQL ServerʣΛࢀর͢ΔΑ͏ͳέʔε • ͪΖΜDBͷόʔδϣϯॏཁͰ͢ • όʔδϣϯʹΑͬͯΫΤϦͷৼΔ͍͕มΘΔέʔε͕͋Δ • SQLͨॻ͖ͯ͠ΔΑ͏ͳ߹ʹҾ͔͔ͬΓ͕ͪ
Webαʔόʔ / ΞϓϦέʔγϣϯαʔόʔ • Webαʔόʔ • Apache / nginx •
ΞϓϦέʔγϣϯαʔόʔ • mongrel / Passenger / unicorn • WebαʔόʔΘͣΞϓϦέʔγϣϯαʔόʔͰ ड͚Δέʔε
ಈ࡞OS • CentOS • Debian / Ubuntu • كʹ Windows
• Bitnami Redmine ͱ͍͏ Window ༻ͷ Redmine Πϯετʔϥ͕ఏڙ͞Ε͍ͯΔ
֎෦ͱͷ࿈ܞ • ଞͷ Rails ΞϓϦͱ࿈ܞ • ActiveResource ( 4.0 Ͱݸผ
gem ʹͳͬͨʣ • ActionWebService (1ܥݶఆ) • Web API ܦ༝Ͱଞͷ Web ΞϓϦͱ࿈ܞ • DB Λࢀরʢ͢Δ/͞ΕΔέʔε྆ํ͋Γ͏Δʣ • αʔόʔΛௐࠪ͢Δ͚ͩͰݟ͚͖ͭΕͳ͍ʢಛʹࢀর͞ΕΔ߹ʣ
ຊͷ·ͱΊ • ϨΨγʔ Rails ΞϓϦͱͷ͖߹͍ํ • ͖߹͍ํͱ͍༷ͬͯʑ͋Δ • ιʔείʔυͦͷͷͰͳ͘ ڥߏஙҡ͕࣋ωοΫʹͳΔ߹͋Δ
• ͋Β͔͡Ί͓ͬͯ͘ͱ҆৺
ͦͷଞখωλ ʢ͕࣌ؒ͋Εʣ
Rails 2 → 3.0 • ҙ֎ͱͳΜͱ͔ͳΔҹ • rails_upgrade plugin Λ͏ͱมߋ͕ඞཁͳ
ՕॴΛચ͍ग़ͯ͘͠ΕΔ • https://github.com/rails/rails_upgrade
Rails 3.0 → 3.2 • ݸਓతʹҰ൪ͭΒ͍ • assets pipeline… •
CSS, ը૾ೖΓͷڊେͳ JavaScript ϥΠϒϥϦΛಋೖ͍ͯ͠Δͱ ٧Έ͍͢ʢ٧Μͩʣ • prototype.js ༻ͷϔϧύʔϝιου͕ফ͑Δ • ࠷ऴखஈ: https://github.com/rails/prototype_legacy_helper
Rails 3.2 → 4 • vendor/plugins → Bundler • Bundler
ಋೖલͷ rails vendor/plugins ҎԼʹ plugin ͷιʔείʔυΛஔ͢ΔܗࣜΛऔͬͯ ͍ͨ • ΞϓϦͷϦϙδτϦʹ֤ plugin ͷιʔείʔυ Λ߹Θͤͯίϛοτ͍ͯͨ͠
Rails 3.2 → 4 • plugin ͷιʔείʔυΛϦϙδτϦʹؚΊΔ͜ͱͰԿ ͕ى͜Δ͔ • plugin
ࣗମʹखΛՃ͍͑ͯͯؾ͖ͮʹ͍͘ • ޓੑͷ͋Δ࠷৽൛ͷ gem ʹஔ͖͑ͯಈ͔ͳ͍ • όʔδϣχϯά͕͔ͬ͠Γ͍ͯ͠Δ pluginͰͳ͍ͱ Ͳͷόʔδϣϯ͕ΘΕ͍ͯΔ͔Ѳ͢Δͷ͕େม
ຊͷ·ͱΊ • ϨΨγʔ Rails ΞϓϦͱͷ͖߹͍ํ • ͖߹͍ํͱ͍༷ͬͯʑ͋Δ • ιʔείʔυͦͷͷͰͳ͘ ڥߏஙҡ͕࣋ωοΫʹͳΔ߹͋Δ
• ͋Β͔͡Ί͓ͬͯ͘ͱ҆৺