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/

Transcript

1. RailsΤϯδχΞ޲͚Dockerೖ໳
   Omotesando.rb #68 2021/12/02
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2. ࣗݾ঺հ
   • ໊લ: ਖ਼ಙ ޼(aka: ਆ଎)
   • ձࣾ: ϝυϐΞגࣜձࣾ
   • ॴଐ: CTOࣨSRE
   • GitHub: @sinsoku (ը૾ӈ্)
   • Twitter: @sinsoku_listy (ը૾ӈԼ)
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3. ࠷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
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4. ϒϩά͕౤ߘͰ͖Δʂ͍͢͝ʂ
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5. ଞPCͰ؆୯ʹಈ͘Α͏ʹ͍ͨ͠
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6. Dockerͷ༻్ ͦͷ1
   ΞϓϦ ͷίϯςφԽ
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7. ΞϓϦͷίϯςφԽ
   omotesando_blog ͱ͍͏όΠφϦΛ࡞Δͷʹ͍ۙɻ
   $ docker run omotesando_blog bin/rails --version
   $ docker run omotesando_blog bin/rails stats
   omotesando_blog ͷDockerΠϝʔδʹ͸ιʔείʔυɺRubyɺ
   gemɺnpmؚ͕·Ε͍ͯΔͷͰɺར༻ऀ͸Docker͚ͩ༻ҙ͢Ε͹
   ྑ͍ɻ
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8. 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
   # ιʔείʔυΛ௥Ճ͢Δ
   COPY . /workspace
   # gem΍npmΛ௥Ճ͢Δ
   RUN bin/setup
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9. Ϗϧυͯ͠ࢼ͢
   $ docker build -t omotesando_blog .
   $ docker run -p 3000:3000 \
   omotesando_blog bin/rails s -b 0.0.0.0
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10. Dockerศར
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11. ։ൃ؀ڥ΋
    !
    ʹ͢Ε͹ศར...ʁ
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12. 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
    # ιʔείʔυΛ௥Ճ͢Δ
    COPY . /workspace
    # gem΍npmΛ௥Ճ͢Δ
    RUN bin/setup
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13. ίʔυมߋ͢Δ౓ʹϏϧυ͕ඞཁ
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14. Dockerͷ༻్ ͦͷ2
    ؀ڥ ͷίϯςφԽ
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15. 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
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16. 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 ʹ͸RubyɺNode.jsɺYarn͸ؚ·Ε͍ͯΔɻ
    ։ൃதʹมߋ͢Δ͜ͱͷ͋Δίʔυɺgemɺnpm͸Πϝʔδʹؚ
    Ίͳ͍ɻ
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17. ·ͱΊ
    Dockerͷ༻్͸2ͭ͋Δɻ
    1. ΞϓϦͷίϯςφԽ
    2. ؀ڥͷίϯςφԽ
    ༻్ʹΑͬͯDockerfileͰؾΛ͚ͭΔ఺͕มΘΔͷͰ஫ҙ͕͍Δɻ
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