Pihole hostname?

[abishur]

Hello all! I installed TrueNas for the first time on an r720xd today and am learning the ropes. One area of particular interest to me are the apps. I've installed Pi-Hole using the truecharts... image? Container? And in the container it lists my hostname as a very long thing. I'd like to change this so I opened up a shell instance went to /etc/ and tried to edit hostname with vi and nano, but those don't exist in the container.

So here's the question 1) How to I edit the hostname to something more descriptive to me and 2) Am I being stupid missing a fundamental truth about these containers? Is the whole point that they are disposable so you don't worry about hostnames like that? Obviously with using the PVC options I can keep the docker image updated without loosing my configurations each time, but am I just grossly over thinking this?

 

[LarsR]

container on scale get destroyed on shutdown and created on startup, so their name changes with every start.

 

[abishur]

Interesting. There's a part of me that is horrified at the thought of an integral part of a system being re-created each time I boot, but that's the point of PVC, my settings are preserved on the recreation.

Is there no way to make the hostname static, like an environmental variable I could set in the settings of the container?

 

[neofusion]

This is just an idea, I have not used Docker in TrueNAS.
Reading the official guide I see that they use Pihole as an example app.

In the part that deals with volume setup they show two volumes being created beforehand on a normal dataset, /mnt/pool1/pihole/etc/pihole and /mnt/pool1/pihole/etc/dnsmasq.d with the idea that they store data persistently, presumably to facilitate upgrades but also restarts (?).

Can you SSH to the NAS (not the container), then go to the relevant /mnt-spot and use TrueNAS's standard text editor to edit /etc/pihole/pihole-FTL.conf and/or /etc/dnsmasq.d/01-pihole.conf as appropriate?

 

[DaSnipe]

Interesting. There's a part of me that is horrified at the thought of an integral part of a system being re-created each time I boot, but that's the point of PVC, my settings are preserved on the recreation.

Is there no way to make the hostname static, like an environmental variable I could set in the settings of the container?

Looking at the docker environmental variables, it looks messy, you can see if adding one here helps:

https://github.com/pi-hole/docker-pi-hole#readme

But I mean the hostname at the top isn't something I worry about, what are you querying by hostname

 

[phradr]

Came here because of another error I was facing - already solved that one.

But maybe someone else is looking for similar information: you can pass environment variables into the app.
Here (LINK) you will find a fully supported list of variables, maybe you might be looking for VIRTUAL_HOST as I was.

This will not solve the thread owners issue (long hostname), but maybe some other ones regarding access, permissions and a lot of others.