jannegpriv

Installation steps for running K3s on a Raspberry PI cluster

Install latest Raspbian by following these instructions:

https://desertbot.io/blog/headless-raspberry-pi-3-bplus-ssh-wifi-setup

Installation steps for running K3s on a Raspberry PI cluster. My RPIs:

# Model

jannegpriv

Installation steps for local Docker registry on master node and K3s integration using K3d

The steps below requires that you have followed the installation steps for installing K3s on RPIs.

Start registry container on master node, we will use insecure mode as configured in my K3s installation guide:

docker run -d -p 5000:5000 --restart=always --name registry registry:2

Login to docker on master node (requires that you have an account on Docker Hub): docker login

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Installation steps for K3s dashboard

The steps below requires that you have followed the installation steps for installing K3s on RPIs.

NOTE: The following files can be found in the following repository.

Installation steps for K3s dashboard. On master node, create a folder called dashboard:

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Link to GitHub: https://github.com/amueller/introduction_to_ml_with_python

Install the following packages:

# Fetch atom, unzip and move to Applications folder
curl -s https://atom.io/download/mac -o mac.zip

# Update xcode and install graphviz

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openHAB K3s deployment

openHAB is a popular open source home automation platform that can run on a Docker container. The openHAB K3s deployment in this example uses persistent volume claims on NFS volumes and Traefik Ingress controller for easy external access to GUIs.

NOTE: The yaml-files for openHAB uses NFS Persistent volumes, hence instructions on this page needs to be done before continuing.

The following instructions assumes you are logged into the master node.

You first need to clone the openHAB Docker repo to be able to fetch the latest container additions from OpenHAB:

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Installation steps for K3s NFS-Client Provisioner

Uses your existing and already configured NFS server to support dynamic provisioning of Kubernetes Persistent Volumes via Persistent Volume Claims.

Start with cloning the external-storage GitHub repo on the master node:

https://github.com/kubernetes-incubator/external-storage

git clone https://github.com/kubernetes-incubator/external-storage

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InfluxDb and Grafana in K3s

The installation steps requires that you have configured NFS client as described in: https://gist.github.com/jannegpriv/f78b59d93c7a815b1fbcb940277bb762

The steps below are based on information in this article.

InfluxDb

Check for the latest official docker image for InfluxDb on DockerHub.

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Man in the middle proxy on MAC.

To be able to reverse engineer Web APIs it is very convenient to use a man-in-the-middle proxy that can in detail reveal what is being sent over the line.

For MAC I recommend to use the mitmproxy which is very easy to install and use. To install just use brew:

brew install mitmproxy

mitmproxy is opensource and can be found on github.

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Backing up Raspberry Pi SD Cards on Mac OS X

1. Insert the SD card into a USB card reader, and plug it into your Mac

2. Open Terminal.app and use the following command to list the disks attached to your Mac and identify which /dev/disk corresponds to the SD card (look for the disk that includes a partition of type Linux):

diskutil list

diskutil unmountDisk /dev/disk3

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Build and install drivers for Tellstick Duo on Raspberry PI

sudo sh -c 'echo "deb-src http://download.telldus.com/debian/ stable main" > /etc/apt/sources.list.d/telldus.list'
wget http://download.telldus.com/debian/telldus-public.key
sudo apt-key add telldus-public.key
sudo apt-get update
sudo apt-get install build-essential
sudo apt-get build-dep telldus-core
sudo apt-get install cmake libconfuse-dev libftdi-dev help2man