如何从目录外执行docker compose？

Question

我可能做错了什么，但我会在这里问一下，以防万一，因为我找不到它。基本上，当我在pc上运行docker映像时，我没有问题，我只是做“Docker-compose run...”从ruby应用程序目录中。然而，当我将图像推到docker-hub时，我想在我的ubuntu服务器上拉出该图像，然后构建该图像。问题是，当我这么做的时候，我实际上没有权限访问ruby应用程序、gemfile或任何东西，所以它根本无法工作...

这是我的错误：

步骤10/23：复制Gemfile/myapp/Gemfile复制失败:stat/var/lib/docker/tmp/docker-builder296802662/Gemfile:没有这样的文件或目录

RUN curl -sL https://deb.nodesource.com/setup_12.x | bash -
RUN curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add -
RUN echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list

RUN apt-get update -qq && apt-get install -y nodejs yarn netcat libpq-dev nano tzdata apt-transport-https

RUN apt-get clean autoclean
RUN rm -rf /var/lib/apt /var/lib/dpkg /var/lib/cacbe /var/lib/log

RUN mkdir /myapp
WORKDIR /myapp
COPY Gemfile Gemfile.lock /myapp/

RUN bundle install

COPY . .

RUN rm -Rf node_modules/
RUN rm yarn.lock
RUN spring stop

RUN rails webpacker:install
RUN yarn install
RUN yarn upgrade
RUN yarn install --check-files

EXPOSE 3000

# Running the startup script before starting the server
ENTRYPOINT ["sh", "./config/docker/startup.sh"]
# Start the main process.
CMD ["rails", "server", "-b", "0.0.0.0"]

services:
  db:
    image: mysql:latest
    restart: always
    command: --default-authentication-plugin=mysql_native_password
    # volumes:
      # - ./tmp/db:/var/lib/postgresql/data
    environment:
      MYSQL_ROOT_PASSWORD: root
      MYSQL_DATABASE: test
      MYSQL_USERNAME: root
      MYSQL_PASSWORD: root
  web:
    build: .
    command: bash -c "rm -f tmp/pids/server.pid && bundle exec rails s -p 3000 -b '0.0.0.0'"
    volumes:
      - .:/myapp
    ports:
      - "3000:3000"
    depends_on:
      - db
    links: 
      - db
    environment: 
      DB_USER: root
      DB_NAME: test
      DB_PASSWORD: root
      DB_HOST: db
      DB_PORT: 3306
      RAILS_ENV: development

非常感谢。

附言。我也总是收到“你的纱线包装过时了！”...

Answer 1

如果您已经将应用程序图像推送到Docker Hub，则需要在Web服务中：

• 添加图像:您的Docker Hub图像的名称
• 删除生成:节
• 删除覆盖图像代码的卷:
• 删除命令:重写映像的cmd（考虑将rm-f server.pid命令添加到startup.shentrypoint脚本中）
• 删除陈旧的链接:设置

这就给您留下了：

version: '3.8'
services:
  db: *as_in_the_question
  web:
    image: 'myname/web:20200622'
    ports:
      - "3000:3000"
    depends_on:
      - db
    environment: 
      DB_USER: root
      DB_NAME: test
      DB_PASSWORD: root
      DB_HOST: db
      DB_PORT: 3306
      RAILS_ENV: development