Question

运行带有卷的Rails docker容器时出错捆绑器：无法加载命令：rails（/ usr / local / bundle / bin / rails） Bundler :: GemNotFound：在任何来源中都无法找到rake-12.3.2

我可以在没有音量的情况下运行我的rails docker容器。但是当我这样附加音量时：

docker run --name rails-chat-tutorial-web \
            -e DATABASE_HOST=172.17.0.1 \
            -e DATABASE_PORT=5432 \
            -e DATABASE_USERNAME=postgres \
            -e DATABASE_PASSWORD=postgres \
            -e REDIS_URL=redis://172.17.0.1:6379/1 \
            -p 3000:3000 \
            -v $(pwd):/application rails-chat-tutorial

我将得到以下错误输出：

bundler: failed to load command: rails (/usr/local/bundle/bin/rails)
Bundler::GemNotFound: Could not find rake-12.3.2 in any of the sources
  /usr/local/bundle/gems/bundler-2.0.1/lib/bundler/spec_set.rb:87:in `block in materialize'
  /usr/local/bundle/gems/bundler-2.0.1/lib/bundler/spec_set.rb:81:in `map!'
  /usr/local/bundle/gems/bundler-2.0.1/lib/bundler/spec_set.rb:81:in `materialize'
  /usr/local/bundle/gems/bundler-2.0.1/lib/bundler/definition.rb:170:in `specs'
  /usr/local/bundle/gems/bundler-2.0.1/lib/bundler/definition.rb:237:in `specs_for'
  /usr/local/bundle/gems/bundler-2.0.1/lib/bundler/definition.rb:226:in `requested_specs'
  /usr/local/bundle/gems/bundler-2.0.1/lib/bundler/runtime.rb:108:in `block in definition_method'
  /usr/local/bundle/gems/bundler-2.0.1/lib/bundler/runtime.rb:20:in `setup'
  /usr/local/bundle/gems/bundler-2.0.1/lib/bundler.rb:107:in `setup'
  /usr/local/bundle/gems/bundler-2.0.1/lib/bundler/setup.rb:20:in `<top (required)>'
  /usr/local/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
  /usr/local/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'

我尝试将这些行添加到Dockerfile中，但仍然出现错误：

RUN gem install rake -v '12.3.2'
RUN bundle install --binstubs
RUN bundle install --path vendor/bundle
RUN bundle install --local
RUN bun

安装安装--local --path = vendor / cache

这是我的Dockerfile：

FROM ruby:2.5.0-stretch

COPY ./Gemfile ./application/
COPY ./Gemfile.lock ./application/

WORKDIR /application

ENV BUNDLER_VERSION 2.0.1

RUN gem install bundler -v '2.0.1' 
RUN bundle install --deployment --without development test 
RUN apt-get update -qq && apt-get install -y build-essential 
RUN curl -sL https://deb.nodesource.com/setup_10.x | bash - 
RUN apt-get install -y nodejs 
RUN bundle install --local --path=vendor/cache

RUN npm install yarn -g

COPY . .

ENV RAILS_ENV production 
ENV SECRET_KEY_BASE production_test_key rails c

RUN bundle exec rake assets:precompile

EXPOSE 3000

CMD bundle exec rails server

Gemfile的内容：

source 'https://rubygems.org'
git_source(:github) { |repo| "https://github.com/#{repo}.git" }

ruby '2.5.0'

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '~> 5.2.1'
# Use sqlite3 as the database for Active Record
gem 'sqlite3'
# Use Puma as the app server
gem 'puma', '~> 3.11'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 5.0'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# See https://github.com/rails/execjs#readme for more supported runtimes
# gem 'mini_racer', platforms: :ruby
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.5'
# Use Redis adapter to run Action Cable in production
# gem 'redis', '~> 4.0'
# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'

# Use ActiveStorage variant
# gem 'mini_magick', '~> 4.8'

# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development

# Reduces boot times through caching; required in config/boot.rb
gem 'bootsnap', '>= 1.1.0', require: false

group :development, :test do
  # Call 'byebug' anywhere in the code to stop execution and get a debugger console
  gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
end

group :development do
  # Access an interactive console on exception pages or by calling 'console' anywhere in the code.
  gem 'web-console', '>= 3.3.0'
  gem 'listen', '>= 3.0.5', '< 3.2'
  # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
  gem 'spring'
  gem 'spring-watcher-listen', '~> 2.0.0'
end

group :test do
  # Adds support for Capybara system testing and selenium driver
  gem 'capybara', '>= 2.15'
  gem 'selenium-webdriver'
  # Easy installation and use of chromedriver to run system tests with Chrome
  gem 'chromedriver-helper'
end

group :production do
  gem 'pg'
end

# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

gem 'devise'
gem 'bootstrap', '~> 4.3.1'
gem 'jquery-rails'
gem 'simple_form'
gem 'redis'
gem 'httparty', '~> 0.17.0'
gem 'rake', '12.3.2'

如果我用shell和gem列表运行rails容器，则会得到“ rake（12.3.2，12.3.0）”

过去2天，我一直在做这个，但没有任何进展。

在此先感谢您能提供一些指导。

Answer 1

添加docker run -v $(pwd):/application选项时，它将隐藏图像/application目录中的所有内容，并将其替换为主机系统中的内容。特别是其中包含/application/vendor目录：Dockerfile中的所有bundle命令都将被完全忽略，而将使用主机系统的./vendor目录。

如果您必须在已部署的容器中进行实时编辑和重新加载，那么对此并没有很好的答案。 Node生态系统是相似的（第三方库在./node_modules中），大多数相似的问题是关于Node而不是Ruby的。 Add a volume to Docker, but exclude a sub-folder建议为./vendor添加一个匿名卷； 仅是第一次运行您的应用程序，它将从图像中填充，但是if you later change your Gemfile it won't get updated和replicating this setup is unnecessarily complicated in cluster environments like Kubernetes。

如果您想尝试匿名卷路径，则可能看起来像

docker run --name rails-chat-tutorial-web ... \
  -v $PWD:/application -v /application/vendor \
  rails-chat-tutorial

$EDITOR Gemfile
bundle install
docker stop rails-chat-tutorial-web
docker rm -v rails-chat-tutorial-web
docker run ...

（{docker rm -v将删除匿名卷，并将在下一个docker run上使用更新的内容重新创建它。您已经告诉Docker目录包含重要的非代码数据，这些数据必须保留在运行。）

最适合我的顺序是在完全不了解Docker的情况下开发我的应用程序：在本地开发，运行它，编写良好的rspec测试，并且通常认为它可以工作。只有这样，我才docker build和docker run一个图像，而无需将源代码绑定安装到其中。如果问题解决了，那么我会在本地开发环境中重现该问题，为它编写一个测试，然后进行修复，然后重复docker build; docker run序列。

Bundler :: GemNotFound：在任何来源中都找不到rake-12.3.2

1 个答案: