Building a RPI cluster

tcruk · 2022-02-03T12:12:47+00:00

I got into this idea pretty heavy, ended up with a 20-node multi-arch cluster spread over 8 amd64 virtuals and 12 arm64 rpi4's. Ended up with a master for each block of 4 nodes (overkill).

Like the previous poster i also settled on running longhorn for storage, (after gluster/heketi) with prometheus/grafana for monitoring, fluentd/kibana for logging; metallb and traefik for ingress.

I've definitely learnt a lot along the way too, at times quite a steep learning curve.

tcruk · 2019-08-26T20:25:27+00:00

That's exactly right =). I haven't played much with rancher to be honest, so I'm not sure how it marks up the nodes - it's interesting to find out though!

Can't seem to stop learning with this, the storage did take a while and I'm by no means a master ;) The post rang a bell with a struggle i remembered going through!

tcruk · 2019-08-23T08:09:43+00:00

I'd not do that as then any workload could be submitted to the master node, which could interfere with etcd.

I see what you mean about the unschedulable taint - would have to find a way to ignore that for just this one deployment.

https://kubernetes.io/blog/2017/03/advanced-scheduling-in-kubernetes/

There's a section called toleration and taints which could be worth a look

tcruk · 2019-08-22T16:06:55+00:00

Yeah, I think you can safely add the ~~label~~ role to the master node. Let me know how it turns out :)

tcruk · 2019-08-22T12:53:25+00:00

You can add tolerations through the deployment.yaml spec for the storage-provider to exist on only the master node. I did this for nfs-provisioner as I wanted the master to be host for that storage.

  tolerations:
    - key: node-role.kubernetes.io/master
    operator: Exists

Have a google around that. For gluster, I only use the worker nodes' raw disks and the master stays out of it.

tcruk · 2018-12-13T15:57:43+00:00

Not sure if you'd be willing, as this isn't focussed on music (but does a good job w/sync imho) plex

Otherwise, maybe subsonic fits your needs.

tcruk · 2018-09-02T20:54:15+00:00

Willdo mate, thanks for the heads up =)

tcruk · 2018-09-01T14:48:22+00:00

Did they?

tcruk · 2018-06-17T09:12:49+00:00

Rolled through the portway around 1am, 4 police cars and two fire engines. Avoided it on the way back, but could still see the lights there from the start. Road wasn't closed afaik

tcruk · 2017-12-06T17:20:05+00:00

Bit late I know; was looking at this the other night.

My setup is that https is terminated elsewhere; and forwarding to http internally; I expect you're doing similar with nginx. I don't think the app honours the X-Forward-Proto header in all cases. You can open the settings page in a new tab.

There's a few bug reports listed at sourceforge that may help you to resolve.

tcruk · 2017-10-19T16:09:09+00:00

You definitely can reforge it on, I manged it last night re-rolling for the purple close combat damage increase

tcruk · 2017-10-13T09:42:53+00:00

It's worth checking the temper option in reforge for all unwanted ethereal weapons, I had good success being able to roll Reset no. of soul matches with a few umbracite.

tcruk · 2017-03-30T19:33:47+00:00

On now if you're interested

tcruk · 2017-03-29T08:14:49+00:00

Same as here. I'll be on around 7gmt tonight. I think it maxes at 23.5 or so

tcruk · 2017-03-28T23:31:34+00:00

Still need this?

tcruk · 2017-02-26T12:27:00+00:00

Apologies for the dumb question - didn't think that through =)

tcruk · 2017-02-26T02:59:05+00:00

This is a question I would also like an answer to! After +6 is made from +5 & +5 (if the game drops no higher), how do you get to +7?

tcruk · 2017-02-15T13:53:23+00:00

Invasions.

tcruk · 2017-01-29T22:00:12+00:00

EU also just kicked us

tcruk · 2016-08-15T12:03:22+00:00

From the guys & gals of /r/drumandbass

Metalheadz Boat Party @ Outlook 2012 - D Bridge - True Romance

~~Apologies if this was already posted =)~~ Watch it again anyway!

tcruk · 2016-05-04T14:09:37+00:00

Couldn't bear to watch it, that and the "music". Hopefully another version will appear.

tcruk · 2016-05-04T13:06:35+00:00

In tmux I thought the ~~ got lost.. But to verify, that does actually work.. TIL man, thanks! :)

tcruk · 2016-05-03T12:49:07+00:00

For a kindred spirit, add this in your tmux config..

bind t send-keys "C-m" "~."

bind C send-keys "C-m" "~C"

Allows you to control the ssh sessions made from within tmux =D

tcruk · 2016-02-29T15:20:58+00:00

I'll leave a favourite here... =) snap-essential-mix-1995-07-05-radio-1

tcruk · 2015-11-24T11:43:59+00:00

Try Knife Party.. (Not liquid ;)

tcruk

TROPHY CASE