Pangolin forget URL of docker label targer after restart or recreate #579

New Issue

MrUnknownDE · 2026-04-05T17:22:46+02:00

MrUnknownDE commented

2026-04-05 17:22:46 +02:00

Originally created by @mprokopiev on 11/30/2025

Describe the Bug

When pangolin container is restarted or recreated, it forgets all the URLs of docker label populated resources. Each URL is just a domain (without subdomain). No site is accessible. Pangolin is not requesting newt to provide docker details.

It is neccessary to open any of affected resource and either refresh the page or open it multiple times to see this in pangolin:

2025-11-30T19:12:01+02:00 [info]: Docker containers for Newt oqujzxxqpevupuz: 58
2025-11-30T19:12:01+02:00 [debug]: Received Docker blueprint:

And this in newt:

Nov 30 19:11:55 container.ro.internal newt[2862621]: DEBUG: 2025/11/30 19:11:55 Received Docker container fetch request

Alternatively, newt can be restarted. I've waited for a while and sync didn't happen automatically.

Environment

OS Type & Version: Alalinux 9.7 with docker 29.1.1
Pangolin Version: 1.12.2
Gerbil Version: 1.2.2
Traefik Version: 3.6.2
Newt Version: 1.6.0

To Reproduce

add labels to container
wait for resource to be populated
restart pangolin container
check URL.
The domain name, instead of a valid URL with subdomain, is shown. Configured at the label domain is returning 404.

Expected Behavior

Expected URL, configured at the label, must be visible and URL must be accessible.

*Originally created by @mprokopiev on 11/30/2025* ### Describe the Bug When pangolin container is restarted or recreated, it forgets all the URLs of docker label populated resources. Each URL is just a domain (without subdomain). No site is accessible. Pangolin is not requesting newt to provide docker details. <img width="928" height="109" alt="Image" src="https://github.com/user-attachments/assets/58ba3b76-3ea4-4000-9877-2086f59bb332" /> It is neccessary to open any of affected resource and either refresh the page or open it multiple times to see this in pangolin: ``` 2025-11-30T19:12:01+02:00 [info]: Docker containers for Newt oqujzxxqpevupuz: 58 2025-11-30T19:12:01+02:00 [debug]: Received Docker blueprint: ``` And this in newt: ``` Nov 30 19:11:55 container.ro.internal newt[2862621]: DEBUG: 2025/11/30 19:11:55 Received Docker container fetch request ``` Alternatively, newt can be restarted. I've waited for a while and sync didn't happen automatically. ### Environment - OS Type & Version: Alalinux 9.7 with docker 29.1.1 - Pangolin Version: 1.12.2 - Gerbil Version: 1.2.2 - Traefik Version: 3.6.2 - Newt Version: 1.6.0 ### To Reproduce * add labels to container * wait for resource to be populated * restart pangolin container * check URL. The domain name, instead of a valid URL with subdomain, is shown. Configured at the label domain is returning 404. ### Expected Behavior Expected URL, configured at the label, must be visible and URL must be accessible.

MrUnknownDE closed this issue

2026-04-05 17:22:46 +02:00

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dependabot/npm_and_yarn/dev-minor-updates-b4e5d6b9c5

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Reference: github/pangolin#579