Listening on But Refused to Connect

[andisugandi]

I already did what the tutorial ask:

See the ps command:
$ docker container ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES f715531cff67 dockerrails_app_development "bundle exec sidekiq" About an hour ago Up About an hour 3000/tcp docker-rails_worker_1 82c4d836acff dockerrails_app_development "docker/startup.sh" About an hour ago Up About an hour 0.0.0.0:32768->3000/tcp docker-rails_app_1 3ed2cd8cb8ca postgres:alpine "docker-entrypoint.s…" About an hour ago Up About an hour 5432/tcp docker-rails_db_1 86cd2e75c561 redis:5.0-alpine "docker-entrypoint.s…" About an hour ago Up About an hour 6379/tcp docker-rails_redis_1

docker-rails_app_1 log:

$ docker logs docker-rails_app_1
... Tasks: TOP => db:setup => db:seed (See full trace by running task with --trace) Done! [903] Puma starting in cluster mode... [903] * Version 3.12.0 (ruby 2.5.3-p105), codename: Llamas in Pajamas [903] * Min threads: 5, max threads: 5 [903] * Environment: development [903] * Process workers: 2 [903] * Preloading application W, [2018-12-27T00:10:26.759679 #903] WARN -- Skylight: [SKYLIGHT] [3.1.2] Running Skylight in development mode. No data will be reported until you deploy your app. (To disable this message for all local apps, run skylight disable_dev_warning.) [903] * Listening on tcp://0.0.0.0:3000 [903] * Listening on unix:///tmp/run.sock [903] ! WARNING: Detected 1 Thread(s) started in app boot: [903] ! #<Thread:0x000055cc9d257c58@/usr/local/bundle/gems/activerecord-5.2.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:299 sleep> - /usr/local/bundle/gems/activerecord-5.2.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:301:in ``sleep' [903] Use Ctrl-C to stop [903] - Worker 0 (pid: 928) booted, phase: 0 [903] - Worker 1 (pid: 935) booted, phase: 0

And docker-rails_worker_1 log:

$ docker logs docker-rails_worker_1
2018-12-26T23:57:06.057Z 1 TID-gt06y6qop INFO: Booting Sidekiq 5.2.3 with redis options {:url=>"redis://redis:6379/0", :id=>"Sidekiq-server-PID-1"} 2018-12-26T23:57:06.267Z 1 TID-gt06y6qop INFO: Cron Jobs - add job with name: wikipedia W, [2018-12-26T23:57:08.073863 #1] WARN -- Skylight: [SKYLIGHT] [3.1.2] Running Skylight in development mode. No data will be reported until you deploy your app. (To disable this message for all local apps, run skylight disable_dev_warning.) 2018-12-26T23:57:25.116Z 1 TID-gt06y6qop INFO: Running in ruby 2.5.3p105 (2018-10-18 revision 65156) [x86_64-linux-musl] 2018-12-26T23:57:25.116Z 1 TID-gt06y6qop INFO: See LICENSE and the LGPL-3.0 for licensing details. 2018-12-26T23:57:25.116Z 1 TID-gt06y6qop INFO: Upgrade to Sidekiq Pro for more features and support: http://sidekiq.org 2018-12-26T23:57:25.121Z 1 TID-gt06y6qop INFO: Starting processing, hit Ctrl-C to stop

But refused to connect.
$ telnet localhost 3000
Trying ::1... telnet: connect to address ::1: Connection refused Trying 127.0.0.1... telnet: connect to address 127.0.0.1: Connection refused

Any suggestions to solve the issue?

Thanks in advance.

[andisugandi]

I'm using:
Docker version 18.09.0, build e68fc7a215d7
docker-compose version 1.23.2, build 1110ad01

[ledermann]

The port localhost:3000 is available inside the container only. From outside you need to use the mapped port, in your case 32768 (see the output of docker ps):

~ $ telnet localhost 32768
Trying ::1...
Connected to localhost.
Escape character is '^]'.
GET / HTTP/1.1
HOST: localhost