Comments on: Building a Raspberry Pi Kubernetes Cluster on Ubuntu 20.04 using kubeadm and Containerd as the runtime.

By: Borey

Borey — Mon, 13 Dec 2021 04:15:40 +0000

Great article! Thanks!

By: Will

Will — Fri, 26 Nov 2021 03:42:43 +0000

containerd config default /etc/containerd/config.toml
should have been written like this:
containerd config default > /etc/containerd/config.toml
Also found I had to run:
sudo apt install linux-modules-extra-raspi && reboot
at a point in the middle to make sure that vxlan kern module was loaded.
this issue manifested by displaying:
The connection to the server x.x.x.x:6443 was refused – did you specify the right host or port?
at the point I was trying to install flannel on the system.
I also installed netstat, and firewall-cmd to troubleshoot, and added 6443 to my allowed ports:
sudo firewall-cmd –permanent –add-port=6443/tcp
and had to reboot after that.
That all seemed to do the trick as then the commands you had above worked fine.

I had bought the set of 3 raspberry pis with the intent to learn more about kubernetes in general.
Thanks for the tutorial, even with the additions this was by far the easiest one I came across.

By: Will

Will — Fri, 26 Nov 2021 03:41:19 +0000

In reply to Will.

I think my other comment deleted my first one, here goes again:
containerd config default /etc/containerd/config.toml

should be:
containerd config default > /etc/containerd/config.toml

By: Will

Will — Fri, 26 Nov 2021 03:38:41 +0000

Also found I had to run:
sudo apt install linux-modules-extra-raspi && reboot
at a point in the middle to make sure that vxlan kern module was loaded.
this issue manifested by displaying:
The connection to the server x.x.x.x:6443 was refused – did you specify the right host or port?
at the point I was trying to install flannel on the system.
I also installed netstat, and firewall-cmd to troubleshoot, and added 6443 to my allowed ports:
sudo firewall-cmd –permanent –add-port=6443/tcp
and had to reboot after that.
That all seemed to do the trick as then the commands you had above worked fine.

I had bought the set of 3 raspberry pis with the intent to learn more about kubernetes in general.
Thanks for the tutorial, even with the additions this was by far the easiest one I came across.

By: will

will — Fri, 26 Nov 2021 02:08:10 +0000

this command:
containerd config default /etc/containerd/config.toml

should contain the redirect to the file:
containerd config default > /etc/containerd/config.toml

By: Alvaro

Alvaro — Thu, 16 Sep 2021 16:42:53 +0000

In reply to Steven Dillon.

Hi,

Not yet…

https://github.com/istio/istio/issues/21094

Thanks a lot

By: Alvaro

Alvaro — Thu, 16 Sep 2021 16:40:12 +0000

Hi,

With this Raspberry PI CLuster…How you can simulate StorageClass???

I need learn this one for the CKA Certification too 😀

Thanks a los,

By: Pixel Robots.

Pixel Robots. — Thu, 05 Aug 2021 11:31:27 +0000

In reply to Steven Dillon. I don't have anything on ISTIO unfortunately. Do you really need it? Maybe look at Linkerd instead. I's much more light weight.

By: Steven Dillon

Steven Dillon — Tue, 03 Aug 2021 19:59:18 +0000

In reply to Pixel Robots.. Got me a 4 node K8s cluster ta very much. Great article, got anything on installing and configuring ISTIO.

By: Pixel Robots.

Pixel Robots. — Wed, 07 Jul 2021 18:35:07 +0000

In reply to Steven Dillon. Awesome news. Let me know how you get on.