mysql – Docker无法链接到正在运行的容器

我需要创建rails和mysql容器与docker-compose当我尝试创建链接容器与docker-compose up我得到

Cannot start container
9b271c58cf6aecaf017dadaf5b Cannot link to a non running container:
/puma_db_1 AS /puma_web_1/db

文件

Dockerfile

FROM ubuntu:14.04

RUN apt-get -y update
RUN apt-get -y install git curl zlib1g-dev build-essential libssl-dev libreadline-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt1-dev libcurl4-openssl-dev python-software-properties libffi-dev

RUN apt-get -y install libmysqlclient-dev
RUN git clone https://github.com/sstephenson/rbenv.git /root/.rbenv
RUN git clone https://github.com/sstephenson/ruby-build.git /root/.rbenv/plugins/ruby-build
RUN echo 'eval "$(rbenv init -)"' >> $HOME/.profile
RUN echo 'eval "$(rbenv init -)"' >> $HOME/.bashrc

RUN rbenv install 2.1.5
RUN rbenv global 2.1.5
RUN gem install rails -v 4.0.11

ADD app.tar.gz /home/
WORKDIR /home/app

RUN bundle install
EXPOSE 3000
CMD ["rails", "server", "-b", "0.0.0.0"]

docker-compose.yml

db:  
  image: mysql:latest
  environment:
    MYSQL_DATABASE: app_development
    MYSQL_USER: mysql
    DATABASE_PASSWORD: onetwo
    ROOT_PASSWORD: onetwo
web:
  build: .
  command: bundle exec rails s -p 3000 -b '0.0.0.0'
  ports:
    - "4000:3000"
  links:
    - db
最佳答案
最可能的db容器启动失败。

通过仅启动db服务,确保它工作正常。您可以使用以下命令:

docker-compose up db

如果看起来MySQL服务没有在这个命令之后运行,那么你发现了你的问题的根源。

转载注明原文:mysql – Docker无法链接到正在运行的容器 - 代码日志