我使用Docker编写了一个非常简单的Rails 5应用程序（及其PostgreSQL数据库）。当我原生运行它时，它工作正常，但如果我在Docker容器内运行它，并转到主页，我收到以下错误：
web_1 | ActionView::Template::Error (could not find a temporary directory):
web_1 | 9: <meta http-equiv='Content-Type' content='text/html; charset=utf-8'>
web_1 | 10: <%= csrf_meta_tags %>
web_1 | 11:
web_1 | 12: <%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track': 'reload' %>
web_1 | 13: <%= javascript_include_tag 'application', 'data-turbolinks-track': 'reload' %>
web_1 | 14: <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
web_1 | 15: </head>
web_1 |
web_1 | app/views/layouts/application.html.erb:12:in `_app_views_layouts_application_html_erb__1331678602890151203_70235895526140'
web_1 | Rendering /usr/local/bundle/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/rescues/template_error.html.erb within rescues/layout
web_1 | Rendering /usr/local/bundle/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/rescues/_source.html.erb
web_1 | Rendered /usr/local/bundle/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/rescues/_source.html.erb (6.5ms)
web_1 | Rendering /usr/local/bundle/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/rescues/_trace.html.erb
web_1 | Rendered /usr/local/bundle/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/rescues/_trace.html.erb (2.6ms)
web_1 | Rendering /usr/local/bundle/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/rescues/_request_and_response.html.erb
web_1 | Rendered /usr/local/bundle/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/rescues/_request_and_response.html.erb (1.1ms)
web_1 | Rendered /usr/local/bundle/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/rescues/template_error.html.erb within rescues/layout (35.4ms)
我在其他帖子中看到它可能取决于容器内/tmp目录的权限，所以我给了它完全权限，我也尝试指定TMPDIR容器的目录，但它没有用。
有什么想法吗？
答案 0 :(得分：0)
遇到了同样的问题，我认为你的docker root不是＆＃39; / var / lib / docker＆＃39;但是位于文件系统树中的其他位置。
在我的情况下，docker root位于使用NTFS格式化的外部SSD上。但是，此文件系统不支持临时目录所需的权限，该临时目录位于＆＃39; / tmp /＆＃39;之下。所以我调整了磁盘的大小，创建了一个额外的EXT4分区并配置了docker来将其数据存储在该分区上。这解决了这个问题。
如果这不起作用，请尝试以下命令： chmod + t / tmp 例如： chmod + t / var / lib / docker / tmp