Local registry and port forwarding issues

[sorenmalling]

Trying to deploy with using a local registry I get into the error of port forwarding and connection refused.

No firewalls enabled (all disabled for testing purpose)

Why is it so - what setting can be missing enabling port forwarding?

Software / hardware

Kamal version 2.10.1
Server: Debian 13 (cpx22 at hetzner)
Local computer: MacBook Air M2

Kamal config

registry:
  server: localhost:5555

Deploy log

 DEBUG [ed839fc9] Command: docker image rm --force localhost:5555/websupply/websupply:83a3a54b0439246151abded34704b0c237285ed2
 DEBUG [ed839fc9] 	Error response from daemon: No such image: localhost:5555/websupply/websupply:83a3a54b0439246151abded34704b0c237285ed2
  INFO [ed839fc9] Finished in 0.146 seconds with exit status 0 (successful).
  INFO [9c971206] Running docker pull localhost:5555/websupply/websupply:83a3a54b0439246151abded34704b0c237285ed2 on 157.90.152.222
 DEBUG [9c971206] Command: docker pull localhost:5555/websupply/websupply:83a3a54b0439246151abded34704b0c237285ed2
 ERROR Error setting up port forwarding to <IPV4-ADDRESS>: Errno::ECONNREFUSED: Connection refused - connect(2) for "localhost" port 5555
 ERROR /Users/soren/.rbenv/versions/3.2.0/lib/ruby/gems/3.2.0/gems/net-ssh-7.3.0/lib/net/ssh/service/forward.rb:398:in `initialize'
/Users/soren/.rbenv/versions/3.2.0/lib/ruby/gems/3.2.0/gems/net-ssh-7.3.0/lib/net/ssh/service/forward.rb:398:in `new'
/Users/soren/.rbenv/versions/3.2.0/lib/ruby/gems/3.2.0/gems/net-ssh-7.3.0/lib/net/ssh/service/forward.rb:398:in `forwarded_tcpip'
/Users/soren/.rbenv/versions/3.2.0/lib/ruby/gems/3.2.0/gems/net-ssh-7.3.0/lib/net/ssh/connection/session.rb:624:in `channel_open'
/Users/soren/.rbenv/versions/3.2.0/lib/ruby/gems/3.2.0/gems/net-ssh-7.3.0/lib/net/ssh/connection/session.rb:549:in `dispatch_incoming_packets'
/Users/soren/.rbenv/versions/3.2.0/lib/ruby/gems/3.2.0/gems/net-ssh-7.3.0/lib/net/ssh/connection/session.rb:249:in `ev_preprocess'
/Users/soren/.rbenv/versions/3.2.0/lib/ruby/gems/3.2.0/gems/net-ssh-7.3.0/lib/net/ssh/connection/event_loop.rb:104:in `each'

[sabljakovich]

Are you running Kamal via the Dockerized setup (https://kamal-deploy.org/docs/installation/dockerized/)?

I hit the same port-forwarding error when doing that. Installing Kamal locally instead fixed it for me:

gem install kamal

Might be worth trying.

[sorenmalling]

@sabljakovich Thanks for answering - I got a notifications. And found that I forgot to update the topic.

I did solve it.. It was a mistake that I had by accident deleted the ipv4 loopback line from /etc/hosts looking like 127.0.0.1 localhost.

And that line is important, when creating port forwarding :-)