versed hawk
Hey, I setup a own docker image which includes Uptime Kuma and Tailscale.
Almost everything works, it connects to tailscale and everything, but I have the following issue:
I can connect from devices in the Tailscale network to railway.
But cannot connect from railway to devices in the Tailscale network.
E.g. I can ping the railway container from my server, but cannot ping my server from the railway container
Does anyone have an idea how I could fix that?
elder iglooBOT
versed hawk
Dockerfile
# Use the Uptime Kuma base image
FROM louislam/uptime-kuma:latest
# Install necessary dependencies for Tailscale
RUN apt-get update && \
apt-get install -y curl iproute2 iptables && \
apt-get clean && rm -rf /var/lib/apt/lists/*
# Download and install Tailscale
RUN curl -fsSL https://tailscale.com/install.sh | sh
# Expose Uptime Kuma port
EXPOSE 3001
# Copy entrypoint script
COPY entrypoint.sh /entrypoint.sh
RUN chmod +x /entrypoint.sh
# Set entrypoint
ENTRYPOINT ["/entrypoint.sh"]
#!/bin/bash
# Start Tailscale with userspace networking and proxy settings
/usr/sbin/tailscaled --state=/var/lib/tailscale/tailscaled.state --socket=/var/run/tailscale/tailscaled.sock --tun=userspace-networking --socks5-server=localhost:1055 --outbound-http-proxy-listen=localhost:1055 &
until /usr/bin/tailscale up --authkey=${TAILSCALE_AUTHKEY} --hostname=${TAILSCALE_HOSTNAME}
do
sleep 0.1
done
# Start Uptime Kuma
node server/server.js
last sail
I don't have any ideas, but I am very curious to know the use case for this?
versed hawk
I want to monitor stuff on my server like the Database which I dont wanna expose to the public, and as I already use tailscale to connect to the database from other Servers in my network, I thought about also monitoring via this.
last sail
if you already have the knowhow to run databases on your own hardware, why not run kuma there too?
versed hawk
And to avoid my status page going down when everything goes down, I wanna host it externally.
last sail
okay gotcha
versed hawk
Yep.
Because I had stuff going down lately and then I only receive the notifications when everythings back up.
last sail
what exactly are the errors you are getting when trying to have kuma ping the stuff you are running on your own hardware?
versed hawk
what exactly are the errors you are getting when trying to have kuma ping the st...
On my hardware I have no problems.
I just cannot Ping, http request, etc to my hardware from railway.
last sail
you said you can't have kuma on railway ping the stuff you run on your hardware, what specifically are the errors though
versed hawk
you said you can't have kuma on railway ping the stuff you run on your hardware,...
Oh yea
versed hawk
https://pixelvault.co/clz6b040t002k6qiwrn4wwn4a
These
last sail
can you send that as a regular image please
last sail
not the most helpful error message, I think you might find the help you need in some kind of tailscale community if one exists?
versed hawk
not the most helpful error message, I think you might find the help you need in ...
idk, the best place to ask would be here I assumed.
last sail
this pertains far more to tailscale than railway tbh
versed hawk
Hm
Okay. Just one more thing.
Could it be that the railway and tailscale networks are interfering?
As I saw the 100.x IP range in the logs of railway.
last sail
your container does not have a 100x IP, so that would be tailscale
versed hawk
Hm weird. because I dont have any 100.64.x ip in my Tailscale network.
last sail
would that not be tailscale itself
versed hawk
Uhm idk
I mean the railway ip of the container is 100.83.185.48
Mine is 100.121.149.44
So yea.
last sail
I'm looking at it right now and the container ips are 10.x
versed hawk
Hm weird.
last sail
interface name: railnet0
├─ flags: up, broadcast, multicast
├─ ipv4 address: 10.250.10.122
├─ ipv6 addresses: fd12:74d7:7e85::a4:ee15:a937, fe80::a0aa:eeff:fe15:a937
└─ hardware address: a2:aa:ee:15:a9:37
Weird.
last sail
likely some small misconfiguration with tailscale, do they have a forum or community you can ask?
last sail
perfect, let me know how that goes and if you need any railway specific information you can ask me
versed hawk
👍
http://100.83.185.48:60582/
One last quick thing.
It must have some sort of connection. As it knows my tailscale IP, plus my tailscale hostname.
Btw can I somehow ssh into the container?
To make debugging easier?
last sail
railway does not provide that