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コードを書いていなかったので追加しました
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と出てしまいました
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解決方法がわからないので教えて下さい
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コードはこちらになります
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```dockerfile
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FROM ruby:2.5.3
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# 必要なパッケージのインストール(基本的に必要になってくるものだと思うので削らないこと)
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RUN apt-get update -qq && \
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apt-get install -y build-essential \
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libpq-dev \
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nodejs
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# 作業ディレクトリの作成、設定
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RUN mkdir /app_name
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##作業ディレクトリ名をAPP_ROOTに割り当てて、以下$APP_ROOTで参照
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ENV APP_ROOT /app_name
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WORKDIR $APP_ROOT
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# ホスト側(ローカル)のGemfileを追加する(ローカルのGemfileは【3】で作成)
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ADD ./Gemfile $APP_ROOT/Gemfile
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ADD ./Gemfile.lock $APP_ROOT/Gemfile.lock
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# Gemfileのbundle install
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RUN bundle install
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ADD . $APP_ROOT
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```
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```yml
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version: '3.3'
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services:
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db:
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image: mysql:5.7
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environment:
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MYSQL_ROOT_PASSWORD: password
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MYSQL_DATABASE: root
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ports:
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- "3306:3306"
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web:
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build: .
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command: rails s -p 3000 -b '0.0.0.0'
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volumes:
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- .:/app_name
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ports:
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- "3000:3000"
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links:
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- db
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```
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以下、docker-rails.sh
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```
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#!/bin/bash
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echo "docker pull ruby:2.5.3"
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docker pull ruby:2.5.3
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echo "docker pull mysql:5.7"
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docker pull mysql:5.7
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echo "docker images"
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docker images
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# make Dockerfile
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cat <<'EOF' > Dockerfile
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FROM ruby:2.5.3
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ENV LANG C.UTF-8
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RUN apt-get update -qq && apt-get install -y build-essential libpq-dev nodejs && rm -rf /var/lib/apt/lists/*
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RUN gem install bundler
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WORKDIR /tmp
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COPY src/Gemfile Gemfile
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COPY src/Gemfile.lock Gemfile.lock
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RUN bundle install
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ENV APP_HOME /app_name
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RUN mkdir -p $APP_HOME
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WORKDIR $APP_HOME
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COPY . $APP_HOME
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EOF
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# make 'src' directory and cd 'src' directory
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mkdir src && cd src
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# make Gemfile
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cat <<'EOF' > Gemfile
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source 'https://rubygems.org'
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gem 'rails'
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EOF
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# make Gemfile.lock()
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touch Gemfile.lock
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# cd ../
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cd ../
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# make docker-compose.yml
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cat <<'EOF' > docker-compose.yml
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version: '3'
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services:
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db:
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image: mysql:5.7
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volumes:
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- ./src/db/mysql_data:/var/lib/mysql
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environment:
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- MYSQL_ROOT_PASSWORD=root
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- MYSQL_DATABASE=root
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ports:
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- "3306:3306"
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web:
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build: .
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command: rails s -p 3000 -b '0.0.0.0'
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volumes:
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- ./src:/app_name
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ports:
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- "3000:3000"
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links:
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- db
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tty: true
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stdin_open: true
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EOF
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echo "docker-compose run web rails new . --force --database=mysql --skip-bundle"
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docker-compose run web rails new . --force --database=mysql --skip-bundle
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# cd 'src'
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cd src
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# fix Gemfile
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echo "fix Gemfile(uncoment mini_racer)"
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cat Gemfile | sed "s/# gem 'mini_racer'/gem 'mini_racer'/" > __tmpfile__
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cat __tmpfile__ > Gemfile
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rm __tmpfile__
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# cd ../
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cd ../
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docker-compose build
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# cd src/
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cd src/
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# fix config/database.yml
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echo "fix config/database.yml"
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cat config/database.yml | sed 's/password:$/password: root/' | sed 's/host: localhost/host: db/' > __tmpfile__
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cat __tmpfile__ > config/database.yml
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rm __tmpfile__
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# cd ../
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cd ../
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echo "docker-compose run web rake db:create"
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docker-compose run web rake db:create
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echo "docker-compose up"
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docker-compose up
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```
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