Docker + Rails + Remote-Containers【VSCode】

Docker + Next.js + Remote-Containers

.devcontainer/devcontainer.json

{
  "name": "myapp-backend",
  "dockerComposeFile": "../docker-compose.yml",
  "service": "api",
  "workspaceFolder": "/",
  "initializeCommand": "ssh-add ~/.ssh/id_rsa"
}

.devcontainer/Dockerfile

FROM ruby:3.1.2
ARG APP_NAME=myapp-backend
ARG USER_NAME=ruby
ENV RUBYGEMS_VERSION=3.3.10
ENV TZ=Asia/Tokyo

WORKDIR /${APP_NAME}

COPY Gemfile Gemfile.lock /${APP_NAME}
RUN gem update --system ${RUBYGEMS_VERSION} && \
    bundle install

COPY /docker/api/entrypoint.sh /usr/bin/
RUN chmod +x /usr/bin/entrypoint.sh
ENTRYPOINT ["entrypoint.sh"]

RUN adduser ${USER_NAME} && \
    chown -R ${USER_NAME} /${APP_NAME} && \
    chown -R ${USER_NAME} ${GEM_HOME}
USER ${USER_NAME}

EXPOSE 3000

CMD ["rails", "server", "-b", "0.0.0.0"]

/docker-compose.yml

version: '3.9'
services:
  db:
    platform: linux/x86_64
    image: mysql:8.0.28
    command: --default-authentication-plugin=mysql_native_password
    volumes:
      - ./src/db/mysql_data:/var/lib/mysql
    environment:
      MYSQL_ROOT_PASSWORD: password

  api:
    build: .
    command: bundle exec rails s -p 3000 -b '0.0.0.0'
    volumes:
      - ./src:/app
    ports:
      - "3000:3000"
    depends_on:
      - db