RubyMine and Docker integration seems buggy

[lancedikson]

Trying to run a Rails test in debug mode with RubyMine, running it on Docker and it doesn't work for some reason. Normal mode works fine though. Does anybody have an idea what's wrong with the debug mode here?

Testing started at 17:04 ...
/usr/local/bin/docker-compose -f /Users/lancedikson/RubymineProjects/videoly-app/docker-compose.yml -f /Users/lancedikson/Library/Caches/RubyMine2018.2/tmp/docker-compose.override.11.yml up --exit-code-from web --abort-on-container-exit web
Starting videoly-app_rubymine_helpers_1 ... 
videoly-app_db_1 is up-to-date
Starting videoly-app_web_1              ... 
Attaching to videoly-app_web_1
web_1               | Fast Debugger (ruby-debug-ide 0.6.1, debase 0.2.2, file filtering is supported) listens on 0.0.0.0:1234
web_1               | Fast Debugger (ruby-debug-ide 0.6.1, debase 0.2.2, file filtering is supported) listens on 0.0.0.0:33039
web_1               | 9: connection failed(1)
web_1               | Exception: Connection refused - connect(2) for "172.20.0.1" port 26168
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:153:in `initialize'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:153:in `open'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:153:in `block in notify_dispatcher'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:151:in `times'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:151:in `notify_dispatcher'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:116:in `block in start_control'
web_1               | 9: connection failed(2)
web_1               | Exception: Connection refused - connect(2) for "172.20.0.1" port 26168
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:153:in `initialize'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:153:in `open'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:153:in `block in notify_dispatcher'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:151:in `times'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:151:in `notify_dispatcher'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:116:in `block in start_control'
web_1               | 9: connection failed(3)
web_1               | Exception: Connection refused - connect(2) for "172.20.0.1" port 26168
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:153:in `initialize'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:153:in `open'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:153:in `block in notify_dispatcher'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:151:in `times'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:151:in `notify_dispatcher'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:116:in `block in start_control'

[lancedikson]

Ok, I provided really few words since I thought, that maybe somebody encountered the error already.
I was trying to run tests in debug mode using RubyMine. It doesn't seem working for some reason. I tried to investigate the reason of that, and checkouted this repo: https://github.com/GabLeRoux/rails-docker-compose-rubymine-example just to check if it works with someones configuration. So, yes, it works with Ruby 2.2.4 and Rails 4.2, but it doesn't seem working with Ruby 2.5.0 and Rails 5.2.0.

[lancedikson]

I tried to update debase and ruby-debug-ide until the last available beta versions and the test seems running in debug mode now (before they were stuck on the last exception), but with exceptions still:

Testing started at 01:41 ...
/usr/local/bin/docker-compose -f /Users/lancedikson/RubymineProjects/videoly-app/docker-compose.yml -f /Users/lancedikson/Library/Caches/RubyMine2018.2/tmp/docker-compose.override.239.yml up --exit-code-from web --abort-on-container-exit web
Starting videoly-app_rubymine_helpers_1 ... 
videoly-app_db_1 is up-to-date
Recreating videoly-app_web_1            ... 
Attaching to videoly-app_web_1
web_1               | Fast Debugger (ruby-debug-ide 0.7.0.beta6, debase 0.2.3.beta2, file filtering is supported) listens on 0.0.0.0:1234
web_1               | 9: connection failed(1)
web_1               | Exception: Connection refused - connect(2) for "172.20.0.1" port 26168
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.7.0.beta6/lib/ruby-debug-ide.rb:168:in `initialize'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.7.0.beta6/lib/ruby-debug-ide.rb:168:in `open'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.7.0.beta6/lib/ruby-debug-ide.rb:168:in `block in notify_dispatcher_if_needed'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.7.0.beta6/lib/ruby-debug-ide.rb:166:in `times'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.7.0.beta6/lib/ruby-debug-ide.rb:166:in `notify_dispatcher_if_needed'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.7.0.beta6/lib/ruby-debug-ide.rb:123:in `block in start_control'
web_1               | 9: connection failed(2)
web_1               | Exception: Connection refused - connect(2) for "172.20.0.1" port 26168
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.7.0.beta6/lib/ruby-debug-ide.rb:168:in `initialize'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.7.0.beta6/lib/ruby-debug-ide.rb:168:in `open'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.7.0.beta6/lib/ruby-debug-ide.rb:168:in `block in notify_dispatcher_if_needed'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.7.0.beta6/lib/ruby-debug-ide.rb:166:in `times'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.7.0.beta6/lib/ruby-debug-ide.rb:166:in `notify_dispatcher_if_needed'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.7.0.beta6/lib/ruby-debug-ide.rb:123:in `block in start_control'
web_1               | 9: connection failed(3)
web_1               | Exception: Connection refused - connect(2) for "172.20.0.1" port 26168
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.7.0.beta6/lib/ruby-debug-ide.rb:168:in `initialize'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.7.0.beta6/lib/ruby-debug-ide.rb:168:in `open'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.7.0.beta6/lib/ruby-debug-ide.rb:168:in `block in notify_dispatcher_if_needed'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.7.0.beta6/lib/ruby-debug-ide.rb:166:in `times'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.7.0.beta6/lib/ruby-debug-ide.rb:166:in `notify_dispatcher_if_needed'
web_1               | 	/usr/local/bundle/gems/ruby-debug-ide-0.7.0.beta6/lib/ruby-debug-ide.rb:123:in `block in start_control'
web_1               | Fatal exception in DebugThread loop: undefined method `accept' for 3:Integer
web_1               | Backtrace:
web_1               | /usr/local/bundle/gems/ruby-debug-ide-0.7.0.beta6/lib/ruby-debug-ide.rb:131:in `block in start_control'
web_1               | Started
web_1               | 
web_1               | 
web_1               | 
web_1               | web_1               | 
web_1               | web_1               | 
web_1               | web_1               | works
web_1               | 
web_1               | web_1               | 
web_1               | web_1               | Finished in 4.90954s
web_1               | 2 tests, 2 assertions, 0 failures, 0 errors, 0 skips
videoly-app_web_1 exited with code 0
Aborting on container exit...

Process finished with exit code 0

[lancedikson]

Tried running ruby 2.4.4 instead of 2.5.0. Didn't work. Seems like the reason is in the specific operation and Rails 5.2.0 (since it worked with Rails 4.2.0, as I mentioned above)

[viuginick1]

@lancedikson Do you have 26168 port opened?

[lancedikson]

@viuginick, hey, I'm not sure if it was. But I already left the use of Docker runtime for development. It's much faster when it's running on the real machine. Basically, I can't reproduce the issue anymore. Thus we can close this until somebody run into the same problem.

[tuckerbuchy]

@lancedikson Just ran into this while trying to do local environment setup using docker-compose

stat-hq      | *** resque-1.25.2: Forked 770 at 1547680179
stat-hq      | Fast Debugger (ruby-debug-ide 0.6.1, debase 0.2.2, file filtering is supported) listens on 0.0.0.0:43259
stat-hq      | 770: connection failed(1)
stat-hq      | Exception: Connection refused - connect(2) for "192.168.128.1" port 26168
stat-hq      | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:153:in `initialize'
stat-hq      | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:153:in `open'
stat-hq      | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:153:in `block in notify_dispatcher'
stat-hq      | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:151:in `times'
stat-hq      | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:151:in `notify_dispatcher'
stat-hq      | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:116:in `block in start_control'
stat-hq      | 770: connection failed(2)
stat-hq      | Exception: Connection refused - connect(2) for "192.168.128.1" port 26168
stat-hq      | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:153:in `initialize'
stat-hq      | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:153:in `open'
stat-hq      | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:153:in `block in notify_dispatcher'
stat-hq      | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:151:in `times'
stat-hq      | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:151:in `notify_dispatcher'
stat-hq      | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:116:in `block in start_control'
stat-hq      | 770: connection failed(3)
stat-hq      | Exception: Connection refused - connect(2) for "192.168.128.1" port 26168
stat-hq      | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:153:in `initialize'
stat-hq      | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:153:in `open'
stat-hq      | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:153:in `block in notify_dispatcher'
stat-hq      | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:151:in `times'
stat-hq      | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:151:in `notify_dispatcher'
stat-hq      | 	/usr/local/bundle/gems/ruby-debug-ide-0.6.1/lib/ruby-debug-ide.rb:116:in `block in start_control'

[cesar3030]

@tuckerbuchy I'm getting the exact same error. Did you find a way to solve this issue?
I'm using:

• ruby 2.5.1
• rails 5.2.0

Thanks :)

[viuginick1]

@cesar3030 @tuckerbuchy Looks like you are using pretty old ruby-debug-ide and debase versions

[cesar3030]

Thanks @viuginick!
I changed my Gemfile to force using these versions:

gem 'ruby-debug-ide', '0.7.0.beta7'
gem 'debase', '0.2.3.beta3'

I know it's not the best to use beta versions but it does the job for now 👍

[arthur5005]

Installed the latest version of ruby-debug-ide and debase and I can't make the connection myself:
Rails: 5.0.7
Ruby 2.4.5

[cesar3030]

I had the same issue with RubyMine when trying to run Rspec tests in debug mode. Since It was working with VSC so I choose to go ahead and start using VSC instead of RubyMine (at least while this issue has not been solved)...

[viuginick1]

@cesar3030 @arthur5005 So VSC debug works with the same ports?

Maybe it will help #107 (comment)

[cesar3030]

This is what I did to debug in VSC. It's a bit of a hack but it does the job for now...

Every time I need to debug, I've to set the RDEBUG env variable to:

• 'rails' if I want to debug the application
• 'rspec' if I want to debug the rspec test
• '' Empty string if I don't want to run in debug mode

docker-compose.yml:

 web:
    build: .
    environment:
      RDEBUG: ''
    command: sh scripts/start.sh
    volumes:
      - .:/app
    ports:
      - 3000:3000
      - 1234:1234
      - 26162:26162

My start script:

rm -f tmp/pids/server.pid 

if [ "${RDEBUG}" = "rails" ] ;then
  bundle exec rdebug-ide --debug --host 0.0.0.0 --port 1234 -- bin/rails s -p 3000 -b 0.0.0.0
elif [ "${RDEBUG}" = "rspec" ] ;then
  bundle exec rdebug-ide --debug --host 0.0.0.0 --port 1234 -- bin/bundle exec rspec spec
else 
  bundle exec rails s -p 3000 -b 0.0.0.0
fi

Here is my attach to docker VSC Config:

{
      "name": "Attach to Docker",
      "type": "Ruby",
      "request": "attach",
      "remotePort": "1234",
      "remoteHost": "127.0.0.1",
      "remoteWorkspaceRoot": "/app",
      "cwd": "${workspaceRoot}",
      "showDebuggerOutput": true
}

Step to debug:

• Set the value of the RDEBUG env variable in the docker-compose.yml file
• Run docker-compose up
• Add breakpoints
• Start a debug session using the Attach to Docker config

This is a lot of steps and I wish I will find a better way to debug asap.

[viuginick1]

@cesar3030 @arthur5005 Could you try to install ruby-debug-ide gem from this branch https://github.com/ViugiNick/ruby-debug-ide/tree/so_reuseport. It should use only one port for debugging and one --dispatcher port