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Railsエンジニア向けDocker入門 / Docker description for R...
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Takumi Shotoku
December 02, 2021
Technology
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Railsエンジニア向けDocker入門 / Docker description for Rails engineers
Omotesando.rb #69
https://omotesandorb.connpass.com/event/231730/
Takumi Shotoku
December 02, 2021
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Transcript
RailsΤϯδχΞ͚Dockerೖ Omotesando.rb #68 2021/12/02 1
ࣗݾհ • ໊લ: ਖ਼ಙ (aka: ਆ) • ձࣾ: ϝυϐΞגࣜձࣾ •
ॴଐ: CTOࣨSRE • GitHub: @sinsoku (ը૾ӈ্) • Twitter: @sinsoku_listy (ը૾ӈԼ) 2
࠷ߴͷϒϩάΞϓϦΛ࡞Δ (3min) $ rails new omotesando_blog $ cd omotesando_blog $
bin/rails g scaffold blog title body:text $ bin/rails db:prepare $ bin/rails s 3
ϒϩά͕ߘͰ͖Δʂ͍͢͝ʂ 4
ଞPCͰ؆୯ʹಈ͘Α͏ʹ͍ͨ͠ 5
Dockerͷ༻్ ͦͷ1 ΞϓϦ ͷίϯςφԽ 6
ΞϓϦͷίϯςφԽ omotesando_blog ͱ͍͏όΠφϦΛ࡞Δͷʹ͍ۙɻ $ docker run omotesando_blog bin/rails --version $
docker run omotesando_blog bin/rails stats omotesando_blog ͷDockerΠϝʔδʹιʔείʔυɺRubyɺ gemɺnpmؚ͕·Ε͍ͯΔͷͰɺར༻ऀDocker͚ͩ༻ҙ͢Ε ྑ͍ɻ 7
Dockerfile ͷྫ1 FROM ruby:3.0.3 WORKDIR /workspace # Install Node.js, Yarn
RUN curl -fsSL https://deb.nodesource.com/setup_14.x | bash - RUN apt-get update && apt-get install -y nodejs RUN npm install --global yarn # ιʔείʔυΛՃ͢Δ COPY . /workspace # gemnpmΛՃ͢Δ RUN bin/setup 8
Ϗϧυͯ͠ࢼ͢ $ docker build -t omotesando_blog . $ docker run
-p 3000:3000 \ omotesando_blog bin/rails s -b 0.0.0.0 9
Dockerศར 10
։ൃڥ ! ʹ͢Εศར...ʁ 11
Dockerfile ͷྫ1ʢ࠶ܝʣ FROM ruby:3.0.3 WORKDIR /workspace # Install Node.js, Yarn
RUN curl -fsSL https://deb.nodesource.com/setup_14.x | bash - RUN apt-get update && apt-get install -y nodejs RUN npm install --global yarn # ιʔείʔυΛՃ͢Δ COPY . /workspace # gemnpmΛՃ͢Δ RUN bin/setup 12
ίʔυมߋ͢ΔʹϏϧυ͕ඞཁ 13
Dockerͷ༻్ ͦͷ2 ڥ ͷίϯςφԽ 14
Dockerfile ͷྫ2 FROM ruby:3.0.3 WORKDIR /workspace # Install Node.js RUN
curl -fsSL https://deb.nodesource.com/setup_14.x | bash - RUN apt-get update && apt-get install -y nodejs # Install Yarn RUN curl -o- -L https://yarnpkg.com/install.sh | bash # Set env to install gems into /workspace/vendor/bundle ENV BUNDLE_PATH vendor/bundle 15
Ϗϧυͯ͠ࢼ͢ $ docker build -t omotesando_blog:v2 . $ docker run
-v `pwd`:/workspace \ omotesando_blog:v2 bin/setup $ docker run -v `pwd`:/workspace -p 3000:3000 \ omotesando_blog:v2 bin/rails s -b 0.0.0.0 omotesando_blog:v2 ʹRubyɺNode.jsɺYarnؚ·Ε͍ͯΔɻ ։ൃதʹมߋ͢Δ͜ͱͷ͋ΔίʔυɺgemɺnpmΠϝʔδʹؚ Ίͳ͍ɻ 16
·ͱΊ Dockerͷ༻్2ͭ͋Δɻ 1. ΞϓϦͷίϯςφԽ 2. ڥͷίϯςφԽ ༻్ʹΑͬͯDockerfileͰؾΛ͚ͭΔ͕มΘΔͷͰҙ͕͍Δɻ 17