Docker / Rails-权限被拒绝@ dir_s_mkdir Errno :: EACCESS

Question

借助Docker，我想建立一个环境，在该环境中可以对本地文件进行更改，而容器则可以提供所述文件。

但是，在运行docker-compose run web之后，我一直收到以下错误：

=> Booting WEBrick
=> Rails 5.0.0.1 application starting in development on http://0.0.0.0:3000
=> Run `rails server -h` for more startup options
Exiting
/usr/local/lib/ruby/2.3.0/fileutils.rb:253:in `mkdir': Permission denied @ dir_s_mkdir - /usr/src/app/tmp (Errno::EACCES)
        from /usr/local/lib/ruby/2.3.0/fileutils.rb:253:in `fu_mkdir'
        from /usr/local/lib/ruby/2.3.0/fileutils.rb:227:in `block (2 levels) in mkdir_p'
        from /usr/local/lib/ruby/2.3.0/fileutils.rb:225:in `reverse_each'
        from /usr/local/lib/ruby/2.3.0/fileutils.rb:225:in `block in mkdir_p'
        from /usr/local/lib/ruby/2.3.0/fileutils.rb:211:in `each'
        from /usr/local/lib/ruby/2.3.0/fileutils.rb:211:in `mkdir_p'
        from /usr/local/bundle/gems/railties-5.0.0.1/lib/rails/commands/server.rb:119:in `block in create_tmp_directories'
        from /usr/local/bundle/gems/railties-5.0.0.1/lib/rails/commands/server.rb:118:in `each'
        from /usr/local/bundle/gems/railties-5.0.0.1/lib/rails/commands/server.rb:118:in `create_tmp_directories'
        from /usr/local/bundle/gems/railties-5.0.0.1/lib/rails/commands/server.rb:75:in `start'
        from /usr/local/bundle/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:90:in `block in server'
        from /usr/local/bundle/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:85:in `tap'
        from /usr/local/bundle/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:85:in `server'
        from /usr/local/bundle/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:49:in `run_command!'
        from /usr/local/bundle/gems/railties-5.0.0.1/lib/rails/commands.rb:18:in `<top (required)>'
        from bin/rails:4:in `require'
        from bin/rails:4:in `<main>'

这些驱动器在Docker设置上共享，我的Windows帐户是Administrator，运行我在这些命令上运行的PowerShell以Administrator身份运行，并且容器的用户是root，所以我真的找不到缺少的权限。

我正在将Hyper-v驱动程序用于Windows的Docker ，并且以下Dockerfile和docker-compose.yml位于应用程序的目录中：

Docker文件

# Official Ubuntu image with Ruby installed
FROM ruby:2.3.0

# Update package lists and install dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    libpq-dev \
    postgresql-client \
    nodejs \
    sqlite3 \
    libqt4-webkit \
    libqt4-dev \
    xvfb \
  && rm -rf /var/lib/apt/lists/*

# Define where the application will live inside the image
ENV APP_HOME /usr/src/app

# Create the application folder
RUN mkdir -p $APP_HOME

# Set the working directory inside the image
WORKDIR $APP_HOME

# Add Gemfile and install dependencies
COPY Gemfile* $APP_HOME/
RUN bundle install

# Copy local folder to work directory
COPY . $APP_HOME

docker-compose.yml

version: '2'
services:
  web:
    privileged: true
    build: .
    command: bundle exec rails server -p 3000 -b '0.0.0.0'
    volumes:
      - .:/usr/src/app
    ports:
      - "3000:3000"

Answer 1

@Filipe能否请您确认您的用户是否具有对目录“”的写权限。 在窗户上？ 由于具有samba集成，因此以管理员身份运行不能保证对装入的卷具有完全的读/写访问权限。

Answer 2

我遇到的问题是由于另一个安装的docker上的旧docker-machine故障，我忘记了删除该时间，却没有意识到在新的安装中仍然存在。

在删除并创建了新的docker-machine ， 根据官方文档添加了virtual switch ，我不再有权限问题。