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submitted 9 months ago* (last edited 9 months ago) by butt_mountain_69420@lemmy.world to c/selfhosted@lemmy.world

I've just about got this Docker thing licked. After hundreds of hours, I finally get it, and my dusty millenial ass has joined the 21st century.

-but we have issues

==============================xxxx==============================

The environment:

I have multiple containers running on my local network, including photoprism, Kavita, and Filebrowser. I also installed Heimdall as a startpage. On the local network everything works great.

The entire goal of this project is to have these services accessible from outside the house, from my mobile devices but also with the ability to share links and files with friends.

==============================xxxx==============================

The problem:

Enter Tailscale. I tried port forwarding, having a domain, all that jazz, but it ended up being way too complicated. I don't want just anyone to access my shit, I only want a handful to be able to use services of my choosing in accordance with the user permissions I set up for them. Tailscale was the first thing I tried that worked.

I added my docker instance to tailscale, and when you access the machine, you are correctly taken to my Heimdal start page. Unfortunately, when you click on the icons for my docker services, the browser gives you an "unable to connect" error.

Under my Tailscale admin panel, the services are listed along with their port and IP information. Heimdall (443) and Portainer(8000) are listed as https and http under "type", as expected. The remaining services are listed as "other." (the portainer link doesn't work either)

  • Has anyone else dealt with this?

  • If this has to do with ports, is there an easy way to configure ports without having to re-run the images and make new containers?

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[-] ULS@lemmy.ml 5 points 9 months ago* (last edited 9 months ago)

I think...

You need to change the Heimdall urls to the the tailscale urls. I'll update this post soon.

My old set up has openmediavault as the base system.

I installed tailscale directly to that base system. (The OS)

My old ip links in Heimdall stopped working.

From memory... You need to go to the tail scale website dashboard. Iirc by default you have some random numbers as your tailscale URL. The other option is to use their magic DNS which gives you random words as a URL. Either way you will need to edit you Heimdall links. So if it's currently http://192.167.1.1:8096 you need to change it to http://buffalo-cow.tailscale:8096. (Or something to that effect.)

What I did was just duplicate my current Heimdall and used a different port number... Then change all the urls to the tailscale urls.

Your current containers should remain untouched aside from the the Heimdall one with the correct app urls.

Edit: I think an example of the tailscale URL with magic DNS enabled would be something like this. https://amelie-workstation.pango-lin.ts:8096

[-] butt_mountain_69420@lemmy.world 0 points 9 months ago* (last edited 9 months ago)

Except that the services are "unable to open" and "other" even from the tailscale admin panel. The top two services, heimdal and portainer, are the only ones with an "open" link.

edit: if I stop heimdall in Docker, the situation is the same, except no start page.

[-] nickknack@lemmy.world 1 points 9 months ago

OP here’s a troubleshooting approach i would take:

  1. ensure services can be reached locally, thus eliminating tailscale as a variable. test on the host itself as well as another device on the same network.

  2. attempt connecting, with tailscale enabled, to the services directly. meaning, go to the hosts’s tailscale IP:port in a browser and NOT through heimdall

  3. if the above work, then it’s an issue with heimdall. edit the config as previously mentioned to link the services to the host’s tailscale IP:port, or have two instances of heimdall - one for local and one for remote

[-] notfromhere@lemmy.ml 3 points 9 months ago

Are all services running on the same machine? You mentioned same network… you also said you added your “docker instance” to tailscale. I think some clarifications on what those two things mean could help narrow down the problem.

E.g. do you have multiple physical machines running docker containers? Each one you want to access needs to be added to tailscale, OR, set up a tailscale gateway?

[-] possiblylinux127@lemmy.zip 2 points 9 months ago

Tailscale has been nothing but pain for me.

What I have is a vps with wireguard and nginx proxy manager. Traffic comes in though the vps and is routed internally. I have firewalls and isolation for everything that is in the danger zone if something gets compromised.

[-] Decronym@lemmy.decronym.xyz 1 points 9 months ago* (last edited 9 months ago)

Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread:

Fewer Letters More Letters
DNS Domain Name Service/System
HTTP Hypertext Transfer Protocol, the Web
IP Internet Protocol
nginx Popular HTTP server

3 acronyms in this thread; the most compressed thread commented on today has 7 acronyms.

[Thread #435 for this sub, first seen 18th Jan 2024, 04:35] [FAQ] [Full list] [Contact] [Source code]

[-] BearOfaTime@lemm.ee 1 points 9 months ago

Have you looked at using the Funnel feature in Tailscale, instead of port mapping? This gets external traffic onto your Tailscale network (for anyone who doesn't have Tailscale) for specific resources, courtesy of Tailscale servers.

If you're just going to open ports to the world, Tailscale isn't really necessary (it's useful for you and anyone on TS, since you can use the Serve feature to permit other Tailscale networks to have access to specific resources).

[-] butt_mountain_69420@lemmy.world 1 points 9 months ago

This sounds like exactly what I need. If I wanted to share my Linux Distros share with my dad, he wouldn't need to install tailscale and feck with all that?

[-] Shurimal@kbin.social 1 points 9 months ago

Set up Tailscale as exit node to your local network.

Make sure that your network is not standard 192.168.0.x or 192.168.1.x IP address range, but something like 192.168.101.x so you don't have IP conflicts when accessing from a friend's house or workplace wifi.

Set up Nginx to redirect your home server IP (eg. 192.168.101.5) to the correct port for your dashboard like Heimdall or Dashy.

That's it. Works like a charm for me if set up this way.

Addendum: if you have trouble on Android, disable MagicDNS.

[-] ArbiterXero@lemmy.world 1 points 9 months ago

What do the links look like on the start page?

The problem is that Tailscale gives your server a “magic” ip, which isn’t the same one as on your local network. On your local network, do you access them by port? Or reverse proxy?

Machine:8080 or service.machine.localdomain

this post was submitted on 18 Jan 2024
14 points (88.9% liked)

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