【Ruby on Rails】M1チップ搭載のMacで「Docker」を使った「Ruby on Rails 5」の開発環境を作る

softwareupdate --install-rosetta

mkdir nllllll_app

cd nllllll_app

touch {Dockerfile,Gemfile,Gemfile.lock,entrypoint.sh,docker-compose.yml}

FROM ruby:2.5
RUN apt-get update -qq && apt-get install -y nodejs postgresql-client
# nllllll_appと書かれている部分はディレクトリ名に応じて変更します。
WORKDIR /nllllll_app
COPY Gemfile /nllllll_app/Gemfile
COPY Gemfile.lock /nllllll_app/Gemfile.lock
RUN bundle install
COPY . /nllllll_app

# Add a script to be executed every time the container starts.
COPY entrypoint.sh /usr/bin/
RUN chmod +x /usr/bin/entrypoint.sh
ENTRYPOINT ["entrypoint.sh"]
EXPOSE 3000

# Configure the main process to run when running the image
CMD ["rails", "server", "-b", "0.0.0.0"]

source 'https://rubygems.org'
gem 'rails', '~>5'

#!/bin/bash
set -e

# Remove a potentially pre-existing server.pid for Rails.
rm -f /myapp/tmp/pids/server.pid

# Then exec the container's main process (what's set as CMD in the Dockerfile).
exec "$@"

version: "3.9"
services:
  db:
    image: postgres
    volumes:
      - ./tmp/db:/var/lib/postgresql/data
    environment:
      POSTGRES_PASSWORD: password
  web:
    build: .
    command: bash -c "rm -f tmp/pids/server.pid && bundle exec rails s -p 3000 -b '0.0.0.0'"
    volumes:
      - .:/nllllll_app #アプリケーション名に応じて変更します。
    ports:
      - "3000:3000"
    depends_on:
      - db

docker-compose run --no-deps web rails new . --force --database=postgresql

docker-compose build

default: &default
  adapter: postgresql
  encoding: unicode
  host: db
  username: postgres
  password: password
  pool: 5

development:
  <<: *default
  database: nllllll_app_development


test:
  <<: *default
  database: nllllll_app_test

docker-compose up

docker-compose down

docker-compose run web rake db:create

docker-compose up