Open
Description
Describe the bug
When running our Rails app on a docker container with a read-only Filesystem mount, we get
`/home/overlay` is not writable.
/usr/local/share/gems/gems/bundler-2.2.33/lib/bundler/shared_helpers.rb:117:in `rescue in filesystem_access': There was an error accessing `/app`. (Bundler::GenericSystemCallError)
The underlying system error is Errno::EROFS: Read-only file system @ dir_s_mkdir - /app/bundler20240702-392135-36ubeq392135
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler/shared_helpers.rb:102:in `filesystem_access'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler.rb:681:in `tmp_home_path'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler.rb:241:in `user_home'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler/shared_helpers.rb:40:in `default_bundle_dir'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler.rb:459:in `default_bundle_dir'
from /app/bundle/ruby/2.6.0/gems/elastic-apm-4.7.3/lib/elastic_apm/stacktrace_builder.rb:33:in `<class:StacktraceBuilder>'
from /app/bundle/ruby/2.6.0/gems/elastic-apm-4.7.3/lib/elastic_apm/stacktrace_builder.rb:25:in `<module:ElasticAPM>'
from /app/bundle/ruby/2.6.0/gems/elastic-apm-4.7.3/lib/elastic_apm/stacktrace_builder.rb:23:in `<top (required)>'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:291:in `require'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:291:in `block in require'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:257:in `load_dependency'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:291:in `require'
from /app/bundle/ruby/2.6.0/gems/elastic-apm-4.7.3/lib/elastic_apm/agent.rb:24:in `<top (required)>'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:291:in `require'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:291:in `block in require'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:257:in `load_dependency'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:291:in `require'
from /app/bundle/ruby/2.6.0/gems/elastic-apm-4.7.3/lib/elastic_apm.rb:37:in `<top (required)>'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:291:in `require'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:291:in `block in require'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:257:in `load_dependency'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:291:in `require'
from /app/bundle/ruby/2.6.0/gems/elastic-apm-4.7.3/lib/elastic-apm.rb:21:in `<top (required)>'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler/runtime.rb:60:in `require'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler/runtime.rb:60:in `block (2 levels) in require'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler/runtime.rb:55:in `each'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler/runtime.rb:55:in `block in require'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler/runtime.rb:44:in `each'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler/runtime.rb:44:in `require'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler.rb:175:in `require'
from /app/config/application.rb:15:in `<top (required)>'
from /app/bundle/ruby/2.6.0/gems/railties-5.2.8.1/lib/rails/command/actions.rb:22:in `require'
from /app/bundle/ruby/2.6.0/gems/railties-5.2.8.1/lib/rails/command/actions.rb:22:in `require_application!'
from /app/bundle/ruby/2.6.0/gems/railties-5.2.8.1/lib/rails/command/actions.rb:14:in `require_application_and_environment!'
from /app/bundle/ruby/2.6.0/gems/railties-5.2.8.1/lib/rails/commands/console/console_command.rb:95:in `perform'
from /app/bundle/ruby/2.6.0/gems/thor-1.2.1/lib/thor/command.rb:27:in `run'
from /app/bundle/ruby/2.6.0/gems/thor-1.2.1/lib/thor/invocation.rb:127:in `invoke_command'
from /app/bundle/ruby/2.6.0/gems/thor-1.2.1/lib/thor.rb:392:in `dispatch'
from /app/bundle/ruby/2.6.0/gems/railties-5.2.8.1/lib/rails/command/base.rb:69:in `perform'
from /app/bundle/ruby/2.6.0/gems/railties-5.2.8.1/lib/rails/command.rb:46:in `invoke'
from /app/bundle/ruby/2.6.0/gems/railties-5.2.8.1/lib/rails/commands.rb:18:in `<top (required)>'
from bin/rails:8:in `require'
from bin/rails:8:in `<main>'
/usr/share/ruby/tmpdir.rb:89:in `mkdir': Read-only file system @ dir_s_mkdir - /app/bundler20240702-392135-36ubeq392135 (Errno::EROFS)
from /usr/share/ruby/tmpdir.rb:89:in `block in mktmpdir'
from /usr/share/ruby/tmpdir.rb:135:in `create'
from /usr/share/ruby/tmpdir.rb:87:in `mktmpdir'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler.rb:315:in `tmp'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler.rb:682:in `block in tmp_home_path'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler/shared_helpers.rb:103:in `filesystem_access'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler.rb:681:in `tmp_home_path'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler.rb:241:in `user_home'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler/shared_helpers.rb:40:in `default_bundle_dir'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler.rb:459:in `default_bundle_dir'
from /app/bundle/ruby/2.6.0/gems/elastic-apm-4.7.3/lib/elastic_apm/stacktrace_builder.rb:33:in `<class:StacktraceBuilder>'
from /app/bundle/ruby/2.6.0/gems/elastic-apm-4.7.3/lib/elastic_apm/stacktrace_builder.rb:25:in `<module:ElasticAPM>'
from /app/bundle/ruby/2.6.0/gems/elastic-apm-4.7.3/lib/elastic_apm/stacktrace_builder.rb:23:in `<top (required)>'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:291:in `require'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:291:in `block in require'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:257:in `load_dependency'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:291:in `require'
from /app/bundle/ruby/2.6.0/gems/elastic-apm-4.7.3/lib/elastic_apm/agent.rb:24:in `<top (required)>'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:291:in `require'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:291:in `block in require'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:257:in `load_dependency'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:291:in `require'
from /app/bundle/ruby/2.6.0/gems/elastic-apm-4.7.3/lib/elastic_apm.rb:37:in `<top (required)>'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:291:in `require'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:291:in `block in require'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:257:in `load_dependency'
from /app/bundle/ruby/2.6.0/gems/activesupport-5.2.8.1/lib/active_support/dependencies.rb:291:in `require'
from /app/bundle/ruby/2.6.0/gems/elastic-apm-4.7.3/lib/elastic-apm.rb:21:in `<top (required)>'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler/runtime.rb:60:in `require'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler/runtime.rb:60:in `block (2 levels) in require'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler/runtime.rb:55:in `each'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler/runtime.rb:55:in `block in require'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler/runtime.rb:44:in `each'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler/runtime.rb:44:in `require'
from /usr/local/share/gems/gems/bundler-2.2.33/lib/bundler.rb:175:in `require'
from /app/config/application.rb:15:in `<top (required)>'
from /app/bundle/ruby/2.6.0/gems/railties-5.2.8.1/lib/rails/command/actions.rb:22:in `require'
from /app/bundle/ruby/2.6.0/gems/railties-5.2.8.1/lib/rails/command/actions.rb:22:in `require_application!'
from /app/bundle/ruby/2.6.0/gems/railties-5.2.8.1/lib/rails/command/actions.rb:14:in `require_application_and_environment!'
from /app/bundle/ruby/2.6.0/gems/railties-5.2.8.1/lib/rails/commands/console/console_command.rb:95:in `perform'
from /app/bundle/ruby/2.6.0/gems/thor-1.2.1/lib/thor/command.rb:27:in `run'
from /app/bundle/ruby/2.6.0/gems/thor-1.2.1/lib/thor/invocation.rb:127:in `invoke_command'
from /app/bundle/ruby/2.6.0/gems/thor-1.2.1/lib/thor.rb:392:in `dispatch'
from /app/bundle/ruby/2.6.0/gems/railties-5.2.8.1/lib/rails/command/base.rb:69:in `perform'
from /app/bundle/ruby/2.6.0/gems/railties-5.2.8.1/lib/rails/command.rb:46:in `invoke'
from /app/bundle/ruby/2.6.0/gems/railties-5.2.8.1/lib/rails/commands.rb:18:in `<top (required)>'
from bin/rails:8:in `require'
from bin/rails:8:in `<main>'
I suspect this is the commit that breaks compatibility with a RO FS:
23b4e4d
and browsing Issue history on the Bundler repo, it appears default_bundle_dir was not designed with the intent that it would be used outside of the install process.
Steps to reproduce
- Create Rails app with latest version of apm agent
- Build docker image with pre-bundled Rails app
- Deploy docker image to Kubernetes cluster using helm directive
securityContext:
readOnlyRootFilesystem: true
Expected behavior
Able to run bundle exec rails c or bundle exec rails s without encountering exception
Environment
- OS: Red Hat Universal Base Image 8
- Ruby version: 2.6.4
- Framework and version: Rails 5.2.8, Bundler 2.2.33
- APM Server version:
- Agent version: 4.7.3
Additional context
Add any other context about the problem here.
-
Agent config options
Click to expand
enabled: false log_path: log/elastic-apm-<%= ENV['HOSTNAME'] %>.log service_node_name: <%= ENV['HOSTNAME'] %>