Kubernetes tutorial - Install Kubernetes on Raspberry Pi fast in 2022
Вставка
- Опубліковано 30 чер 2024
- Kubernetes tutorial | Kubernetes explained | Kubernetes installation
How to install Kubernetes on Raspberry Pi 3 or 4 cluster.
#kubernetes #raspberrypi #kubernetestutorial #anmalkov #ubuntu
💻 Commands to connect to Raspberry Pi via SSH:
ssh username@ip-address
💻 Commands to install Kubernetes master node on Raspberry Pi:
sudo apt-get update
sudo apt-get upgrade -y
sudo nano /boot/cmdline.txt
Add to the end of the file: cgroup_memory=1 cgroup_enable=memory
sudo reboot
curl -sfL get.k3s.io | sh -
💻 Command to get Kubernetes master node token on Raspberry Pi:
sudo cat /var/lib/rancher/k3s/server/node-token
💻 Commands to install Kubernetes worker node on Raspberry Pi:
sudo apt-get update
sudo apt-get upgrade -y
sudo nano /boot/cmdline.txt
Add to the end of the file: cgroup_memory=1 cgroup_enable=memory
sudo reboot
curl -sfL get.k3s.io | K3S_URL=ip-address:6443 K3S_TOKEN=node-token sh -
⏰ Timestamps
0:00 - Introduction
1:26 - Install Raspberry Pi Imager
2:45 - Flash Raspberry Pi OS x64 to SSD and SD cards
9:25 - Connect to the Kubernetes master node
12:04 - Install k3s on the master node
18:46 - Get the master node token
20:10 - Install k3s on the worker node
25:46 - Connect to Raspberry Pi cluster from outside
30:14 - Check the connection to Kubernetes cluster
33:12 - Wrapping up
🔗 Links
www.raspberrypi.com/software/
k3s.io
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Simple straight forward. Wish all videos on UA-cam were this straight forward.
This is superb and to the point, greatly appreciated.
Worked like a charm...Thanks for the video
Thank you for the kind words!
Very helpful; way to keep it simple but very effective.
Thanks for a really good video!
Thank you for the kind words!
Good! I am going to clean up all of my 5 Raspberry pi 4, and then install this k3s according to your demo!
Thanks, really good video !
Thank you!
Very good video thanks ❤
Wonderful. I couldn’t get this watch a lot of other people videos. Well executed!!!!!
tkn, very simple and direct
Thank you for the kind words!
awesome video
Thank you!
thanks!
Could you maCould you make a video about OpenFaaS working in that same cluster and make some example function? Thanks for your videos.
Thanks
Hi Andrew Malkov
Thanks for bringing such a wonderful organized tutorial. I am new comer in kubernetees world, to understand I tried multiple contents to build my cluster but this one is done in very simple way and thanks for the same. One part related to joining the connections in yml file (around 27.5) i think we need kubernetees to be installed on laptop (Where I am establishing the ssh towards my pi cluster). Reason is I do not see any .kube folder in my home directory.
Yes, kubectl should be installed on your laptop.
Thanks for the video, when you connected the raspberry pi to the cluster, how did you figured it out what to do ?
quick question. how did you install your two fans to your cluster?
nice tut
Thank you!
Would it be possible for new content “Auto-upgrade k3s using the system-upgrade-controller” tutorial?
Really good video. I am new to Kubernetes. The cluster name "pi" when is that defined?
Thank you! "pi" is just the name that I choose. You can name it as you want, eg. "picluster" or "mycluster" or "garage" - it really does not matter.
Hi Andrew, great tutorial, well explained and straightforward. But I've a doubt, I have already 4 Raspberry Pis running with many containers running on each of them. It is possible to "convert" this environment into a Kubernetes cluster or I have to reinstall everything from the begining and start from scratch?. Im new commer in this, and It took me a lot of time and efforts to set this up... Thanks a lot!!!
Hi Antonio, thank you for the kind words. You can combine your 4 pis into the one cluster and host all of your containers there. But you need to rewrite your Docker / Docker compose instructions into Kubernetes deployment manifests.
@@anmalkov so, rewriting every docker-compose and creating a máster It is possible?
In your cluster you will have only 1 master and 3 worker nodes. All containers that you are running now will be run on these worker nodes. To run your containers now you are using Docker compose or just Docker commands. It's not possible to use it with Kubernetes. You need to rewrite your Docker commands / compose files to Kubernetes deployment manifests that are written in YAML.
@@anmalkov Ok, now I understand perfectly! thank you very much. So I think that I'll try Kubernetes in my next life... Thinking of start everthing from the begining really scares me.
I followed different videos till now and same error was getting popped up each time "cgroup not found"
Thank you man for the proper instruction
Have you happened to get the Kubernetes Dashboard working and accessible from outside the Raspberry Pi? I am having a horrible time getting it to be accessible.
hey im a noob, im going to follow this tutorial. i only have 2 rpi but does the master node only work as a master node? or does it see itself as a worker too? i ask because if i only have 2 pis for the cluster will one node be doing all the work? or should i wait until i have alot of nodes. since im not too sure i welcome any help
The master can also host the workloads. However it's not recommended. But, who cares about recommendations if it's your own home cluster ;) I would suggest to not wait and use what you have, if it won't work for you - just add another one pi
QQ if I have 2 pis, one of 2gb ram and the other one with 4, which one is recommended to use as the master?
All of it seemed pretty easy until it came time to edit the kube config. How do I get a copy of that on my PC to be able to edit it in vs code?
Hello Andrew, it is a very good tutorial. I have installed the kubernetes as you recommended on running raspi-system and it is running without problems The only thing is that yaml is new for me. My question is can you publish the yaml source on your youtube-channel?
Hello Thomas, thank you for the kind words. What yaml file you are talking about? I don't think that I used yaml in this video. Regards, Andrew
@@anmalkov
@@anmalkov Hello Andrew you find it when you scroll to 27:28
Sorry it was 27:54
@@tsob99 You can find your own config yaml file at /etc/rancher/k3s/k3s.yaml. You can't use an another one. It's used to configure your laptop after install kubectl.
Hi, may I ask which SSD are you using?
Hi, I'm using Crucial BX500 120GB Internal SSD.
Is it important to be installed on Ubuntu, or it is only an option?
My next project
Hello, How are you doing autocomplete in your PowerShell command?
Please look at my latest videos. There is the step by step guide.
How do you make the commands from the history appear below in the powershell?
I will publish a short video about it soon.
Google for "Adding Predictive IntelliSense to my Windows Terminal PowerShell Prompt with PSReadline" ;) It's not hard to install
@@stfnbstl9379 thank you
could you make a video adding your cluster to rancher?
Thank you for the suggestion. I will see what I can do
@@anmalkov Im looking for this also. Please add!
How will vs code pop up?
What happens if I don't set a static IP address?
Hi Joseph, could you please tell me what static IP address you are talking about? Thx
check netplan , cd /etc/netplan, 50-cloud-init.yaml config.yaml creat your own config.yaml for static ip address configaration. (Netplan apply /config.yaml) :)
@@anmalkov Hello, for some odd reason when I try to set a static IP address to mi Pi's it doesn't work (while every tutorial shows its very simple).
I skipped ahead and clustered them any way and both nodes show "ready", however I am still worried because I never set a static IP.
Sorry for the long comment.
27:38
Thanks. I missed that.
Useful video. Followed your instructions line by line.
ubuntu@master:~$ sudo kubectl get nodes
E0506 15:30:16.957925 28052 memcache.go:265] couldn't get current server API group list: the server is currently unable to handle the request
E0506 15:30:16.983338 28052 memcache.go:265] couldn't get current server API group list: the server is currently unable to handle the request
E0506 15:30:17.001146 28052 memcache.go:265] couldn't get current server API group list: the server is currently unable to handle the request
Error from server (ServiceUnavailable): the server is currently unable to handle the request (get nodes)
I got the same thing. I discovered my /etc/hosts file was reset to a clean state. After researching this I found that the /etc/cloud/templates/hosts.debian.tmpl had to be updated with the additional worker node addresses:
sudo nano /etc/cloud/templates/hosts.debian.tmpl
#add everything you want to appear in /etc/hosts - save and reboot master.
Then my master appeared when I ran sudo kubectl get nodes
I am running Ubuntu server 22.04