Got Errno::ENOSYS with docker linux/amd64 on arm64 m1 mac with Rails

[sanemat]

I got error below with linux/amd64 container on arm64 m1 mac

with

config/environments/development.rb
config.file_watcher = ActiveSupport::EventedFileUpdateChecker

docker-compose up --build -d
docker-compose run -e SKIP_TEST_DATABASE=true web bin/rails db:setup --trace

then

$ docker-compose run -e SKIP_TEST_DATABASE=true web bin/rails db:setup --trace  
[+] Running 1/0
 ⠿ Container tmp-m1-rb-fsevent-db-1  Created                                                                                                              0.0s
[+] Running 1/1
 ⠿ Container tmp-m1-rb-fsevent-db-1  Started                                                                                                              0.4s
** Invoke db:setup (first_time)
** Invoke db:create (first_time)
** Invoke db:load_config (first_time)
** Invoke environment (first_time)
** Execute environment
rails aborted!
Errno::ENOSYS: Function not implemented - Failed to initialize inotify
/usr/local/bundle/gems/rb-inotify-0.10.1/lib/rb-inotify/notifier.rb:69:in `initialize'
/usr/local/bundle/gems/listen-3.7.0/lib/listen/adapter/linux.rb:29:in `new'
/usr/local/bundle/gems/listen-3.7.0/lib/listen/adapter/linux.rb:29:in `_configure'
/usr/local/bundle/gems/listen-3.7.0/lib/listen/adapter/base.rb:47:in `block in configure'
/usr/local/bundle/gems/listen-3.7.0/lib/listen/adapter/base.rb:42:in `each'
/usr/local/bundle/gems/listen-3.7.0/lib/listen/adapter/base.rb:42:in `configure'
/usr/local/bundle/gems/listen-3.7.0/lib/listen/adapter/base.rb:66:in `start'
/usr/local/lib/ruby/2.6.0/forwardable.rb:230:in `start'
/usr/local/bundle/gems/listen-3.7.0/lib/listen/listener.rb:71:in `block in <class:Listener>'
/usr/local/bundle/gems/listen-3.7.0/lib/listen/fsm.rb:124:in `instance_eval'
/usr/local/bundle/gems/listen-3.7.0/lib/listen/fsm.rb:124:in `call'
/usr/local/bundle/gems/listen-3.7.0/lib/listen/fsm.rb:105:in `transition_with_callbacks!'
/usr/local/bundle/gems/listen-3.7.0/lib/listen/fsm.rb:72:in `transition'
/usr/local/bundle/gems/listen-3.7.0/lib/listen/listener.rb:92:in `start'
/usr/local/bundle/gems/activesupport-6.1.4.1/lib/active_support/evented_file_update_checker.rb:109:in `start'
/usr/local/bundle/gems/activesupport-6.1.4.1/lib/active_support/evented_file_update_checker.rb:88:in `initialize'
/usr/local/bundle/gems/activesupport-6.1.4.1/lib/active_support/evented_file_update_checker.rb:44:in `new'
/usr/local/bundle/gems/activesupport-6.1.4.1/lib/active_support/evented_file_update_checker.rb:44:in `initialize'
/usr/local/bundle/gems/activesupport-6.1.4.1/lib/active_support/i18n_railtie.rb:64:in `new'
/usr/local/bundle/gems/activesupport-6.1.4.1/lib/active_support/i18n_railtie.rb:64:in `initialize_i18n'
/usr/local/bundle/gems/activesupport-6.1.4.1/lib/active_support/i18n_railtie.rb:20:in `block in <class:Railtie>'
/usr/local/bundle/gems/activesupport-6.1.4.1/lib/active_support/lazy_load_hooks.rb:68:in `block in execute_hook'
/usr/local/bundle/gems/activesupport-6.1.4.1/lib/active_support/lazy_load_hooks.rb:61:in `with_execution_control'
/usr/local/bundle/gems/activesupport-6.1.4.1/lib/active_support/lazy_load_hooks.rb:66:in `execute_hook'
/usr/local/bundle/gems/activesupport-6.1.4.1/lib/active_support/lazy_load_hooks.rb:52:in `block in run_load_hooks'
/usr/local/bundle/gems/activesupport-6.1.4.1/lib/active_support/lazy_load_hooks.rb:51:in `each'
/usr/local/bundle/gems/activesupport-6.1.4.1/lib/active_support/lazy_load_hooks.rb:51:in `run_load_hooks'
/usr/local/bundle/gems/railties-6.1.4.1/lib/rails/application/finisher.rb:140:in `block in <module:Finisher>'
/usr/local/bundle/gems/railties-6.1.4.1/lib/rails/initializable.rb:32:in `instance_exec'
/usr/local/bundle/gems/railties-6.1.4.1/lib/rails/initializable.rb:32:in `run'
/usr/local/bundle/gems/railties-6.1.4.1/lib/rails/initializable.rb:61:in `block in run_initializers'
/usr/local/lib/ruby/2.6.0/tsort.rb:228:in `block in tsort_each'
/usr/local/lib/ruby/2.6.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
/usr/local/lib/ruby/2.6.0/tsort.rb:431:in `each_strongly_connected_component_from'
/usr/local/lib/ruby/2.6.0/tsort.rb:349:in `block in each_strongly_connected_component'
/usr/local/lib/ruby/2.6.0/tsort.rb:347:in `each'
/usr/local/lib/ruby/2.6.0/tsort.rb:347:in `call'
/usr/local/lib/ruby/2.6.0/tsort.rb:347:in `each_strongly_connected_component'
/usr/local/lib/ruby/2.6.0/tsort.rb:226:in `tsort_each'
/usr/local/lib/ruby/2.6.0/tsort.rb:205:in `tsort_each'
/usr/local/bundle/gems/railties-6.1.4.1/lib/rails/initializable.rb:60:in `run_initializers'
/usr/local/bundle/gems/railties-6.1.4.1/lib/rails/application.rb:391:in `initialize!'
/app/config/environment.rb:5:in `<main>'
/usr/local/bundle/gems/bootsnap-1.9.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
/usr/local/bundle/gems/bootsnap-1.9.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
/usr/local/bundle/gems/bootsnap-1.9.1/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
/usr/local/bundle/gems/bootsnap-1.9.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
/usr/local/bundle/gems/bootsnap-1.9.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
/usr/local/bundle/gems/zeitwerk-2.4.2/lib/zeitwerk/kernel.rb:34:in `require'
/usr/local/bundle/gems/activesupport-6.1.4.1/lib/active_support/dependencies.rb:332:in `block in require'
/usr/local/bundle/gems/activesupport-6.1.4.1/lib/active_support/dependencies.rb:299:in `load_dependency'
/usr/local/bundle/gems/activesupport-6.1.4.1/lib/active_support/dependencies.rb:332:in `require'
/usr/local/bundle/gems/railties-6.1.4.1/lib/rails/application.rb:367:in `require_environment!'
/usr/local/bundle/gems/railties-6.1.4.1/lib/rails/application.rb:533:in `block in run_tasks_blocks'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/task.rb:281:in `block in execute'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/task.rb:281:in `each'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/task.rb:281:in `execute'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/task.rb:219:in `block in invoke_with_call_chain'
/usr/local/lib/ruby/2.6.0/monitor.rb:235:in `mon_synchronize'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/task.rb:199:in `invoke_with_call_chain'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/task.rb:243:in `block in invoke_prerequisites'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/task.rb:241:in `each'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/task.rb:241:in `invoke_prerequisites'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/task.rb:218:in `block in invoke_with_call_chain'
/usr/local/lib/ruby/2.6.0/monitor.rb:235:in `mon_synchronize'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/task.rb:199:in `invoke_with_call_chain'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/task.rb:243:in `block in invoke_prerequisites'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/task.rb:241:in `each'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/task.rb:241:in `invoke_prerequisites'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/task.rb:218:in `block in invoke_with_call_chain'
/usr/local/lib/ruby/2.6.0/monitor.rb:235:in `mon_synchronize'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/task.rb:199:in `invoke_with_call_chain'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/task.rb:243:in `block in invoke_prerequisites'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/task.rb:241:in `each'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/task.rb:241:in `invoke_prerequisites'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/task.rb:218:in `block in invoke_with_call_chain'
/usr/local/lib/ruby/2.6.0/monitor.rb:235:in `mon_synchronize'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/task.rb:199:in `invoke_with_call_chain'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/task.rb:188:in `invoke'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/application.rb:160:in `invoke_task'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/application.rb:116:in `block (2 levels) in top_level'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/application.rb:116:in `each'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/application.rb:116:in `block in top_level'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/application.rb:125:in `run_with_threads'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/application.rb:110:in `top_level'
/usr/local/bundle/gems/railties-6.1.4.1/lib/rails/commands/rake/rake_command.rb:24:in `block (2 levels) in perform'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/application.rb:186:in `standard_exception_handling'
/usr/local/bundle/gems/railties-6.1.4.1/lib/rails/commands/rake/rake_command.rb:24:in `block in perform'
/usr/local/bundle/gems/rake-13.0.6/lib/rake/rake_module.rb:59:in `with_application'
/usr/local/bundle/gems/railties-6.1.4.1/lib/rails/commands/rake/rake_command.rb:18:in `perform'
/usr/local/bundle/gems/railties-6.1.4.1/lib/rails/command.rb:50:in `invoke'
/usr/local/bundle/gems/railties-6.1.4.1/lib/rails/commands.rb:18:in `<main>'
/usr/local/bundle/gems/bootsnap-1.9.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
/usr/local/bundle/gems/bootsnap-1.9.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
/usr/local/bundle/gems/bootsnap-1.9.1/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
/usr/local/bundle/gems/bootsnap-1.9.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
/usr/local/bundle/gems/bootsnap-1.9.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
/app/bin/rails:5:in `<top (required)>'
/usr/local/bundle/gems/spring-3.0.0/lib/spring/client/rails.rb:28:in `load'
/usr/local/bundle/gems/spring-3.0.0/lib/spring/client/rails.rb:28:in `call'
/usr/local/bundle/gems/spring-3.0.0/lib/spring/client/command.rb:7:in `call'
/usr/local/bundle/gems/spring-3.0.0/lib/spring/client.rb:30:in `run'
/usr/local/bundle/gems/spring-3.0.0/bin/spring:49:in `<top (required)>'
/usr/local/bundle/gems/spring-3.0.0/lib/spring/binstub.rb:11:in `load'
/usr/local/bundle/gems/spring-3.0.0/lib/spring/binstub.rb:11:in `<top (required)>'
/usr/local/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
/usr/local/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
/app/bin/spring:10:in `block in <top (required)>'
/app/bin/spring:7:in `tap'
/app/bin/spring:7:in `<top (required)>'
bin/rails:2:in `load'
bin/rails:2:in `<main>'
Tasks: TOP => db:setup => db:create => db:load_config => environment

---

OK pattern, without listen gem
with

config/environments/development.rb
config.file_watcher = ActiveSupport::FileUpdateChecker

then

$ docker-compose run -e SKIP_TEST_DATABASE=true web bin/rails db:setup --trace
[+] Running 1/0
 ⠿ Container tmp-m1-rb-fsevent-db-1  Running                                                                                                              0.0s
** Invoke db:setup (first_time)
** Invoke db:create (first_time)
** Invoke db:load_config (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute db:load_config
** Execute db:create
Database 'tmp_m1_rb_fsevent_development' already exists
** Invoke environment 
** Invoke db:schema:load (first_time)
** Invoke db:load_config 
** Invoke db:check_protected_environments (first_time)
** Invoke db:load_config 
** Execute db:check_protected_environments
** Execute db:schema:load
** Invoke db:seed (first_time)
** Invoke db:load_config 
** Execute db:seed
** Invoke db:abort_if_pending_migrations (first_time)
** Invoke db:load_config 
** Execute db:abort_if_pending_migrations
** Execute db:setup

---

environments:

• Ruby 2.6.8
• rb-inotify-0.10.1
• Docker
  • ruby:2.6.8-slim-stretch
  • Docker version 20.10.8, build 3967b7d
• rails 6.1.4.1
• bundler 2.2.26
• MacBook Air (M1, 2020)
  • macOS Big Sur version 11.6 (20G165)
  • Chip Apple M1

repo reproduced:

• https://github.com/sanemat/tmp-m1-rb-fsevent

[sanemat]

I'm not sure about minimal reproduce. Could you give me a hand?

[uberjay]

Docker Desktop's documentation for their Apple Silicon support says:

However, attempts to run Intel-based containers on Apple Silicon machines under emulation can crash as qemu sometimes fails to run the container. In addition, filesystem change notification APIs (inotify) do not work under qemu emulation. Even when the containers do run correctly under emulation, they will be slower and use more memory than the native equivalent.

(emphasis added)

Sounds like it isn't expected to work, unfortunately.

[djones]

+1. Multiple folks on my team are impacted by this.

Is there an alternative filesystem change API that can be used?

@sanemat you said:

OK pattern, without listen gem
with

config/environments/development.rb
config.file_watcher = ActiveSupport::FileUpdateChecker

does that mean with this configuration, it works for you?

[ioquatix]

Using a file system checker that calls sleep and then scans the entire file system under the root can work as a default - works everywhere solution. I don't know if the listen gem supports that but I believe it's reasonable implementation if slow, so maybe it's available somewhere.

[Smulligan85]

@djones and anyone else who might have this issue I came across this problem when upgrading to Rails 6 with Docker and @sanemat solution of updating the file_watcher API to use ActiveSupport::FileUpdateChecker does seem to work for me. From what I can tell the issue seems to be because ActiveSupport::EventsFileUpdateChecker relies on platform-specific file system events, see docs https://www.rubydoc.info/gems/activesupport/ActiveSupport/EventedFileUpdateChecker