如何基于 docker 开始一个新的Rails项目

[alvin2ye]

cat <<EOF >> Dockerfile

FROM ruby:3-alpine3.13
EXPOSE 3000

RUN apk add --update \
  build-base \
  mariadb-dev \
  nodejs yarn \
  tzdata \
  && rm -rf /var/cache/apk/*

RUN mkdir -p /app
WORKDIR /app
VOLUME /app

ADD Dockerfile /Dockerfile
CMD ["sh", "-c", "env >> /etc/environment ; tail -f /dev/null"]

EOF

# docker-compose.yml

cat <<EOF >> docker-compose.yml

version: "3"

services:
  mysql:
    image: mysql:8.0
    environment:
      - MYSQL_ROOT_PASSWORD=root
    volumes:
      - "mysql_data:/var/lib/mysql"
      - ".:/app"
  main:
    build: .
    ports:
      - "3000:3000"
    volumes:
      - ".:/app"
      - "ruby_bundle:/usr/local/bundle"
      - "~/.ssh/id_rsa:/root/.ssh/id_rsa"
    depends_on:
      - mysql
volumes:
  mysql_data:

EOF

docker-compose up -d
docker-compose exec main sh -c "gem install rails"
docker-compose exec main sh -c "rails new . -d mysql"
vim database.yml
docker-compose exec main sh -c "rake db:create"
docker-compose exec main sh -c "rails s -b 0.0.0.0"


# 可能用到
# docker-compose exec main sh -c "bundle"
# docker-compose exec main sh -c "rails webpacker:install"