Jeff Billimek billimek

He's also added a cheat sheet

Setup

# get vim set up
brew uninstall ctags
brew tap universal-ctags/universal-ctags
brew install universal-ctags --HEAD

This guide has moved to a GitHub repository to enable collaboration and community input via pull-requests.

https://github.com/alexellis/k8s-on-raspbian

Alex

Multiplatform (`amd64` and `arm`) Kubernetes cluster setup

The official guide for setting up Kubernetes using kubeadm works well for clusters of one architecture. But, the main problem that crops up is the kube-proxy image defaults to the architecture of the master node (where kubeadm was run in the first place).

This causes issues when arm nodes join the cluster, as they will try to execute the amd64 version of kube-proxy, and will fail.

It turns out that the pod running kube-proxy is configured using a DaemonSet. With a small edit to the configuration, it's possible to create multiple DaemonSets—one for each architecture.

Steps

Follow the instructions at https://kubernetes.io/docs/setup/independent/create-cluster-kubeadm/ for setting up the master node. I've been using Weave Net as the network plugin; it see

How to use this script?

Why, that's simple! Copy this script to your USG, run chmod +x on it and then, as a user with sudo permission, execute it.

Shamelessly borrowed from Brittanic on the Ubiquiti Unifi forums

How to use it?

Simply run the following command (note, if you are at all security concious-don't run it and instead review the script, then copy it to your USG to execute).

curl https://gist.githubusercontent.com/troyfontaine/7e6f93e32621177fc9a94e823adc52b5/raw/fix_ddns.sh | sudo bash

	set-window-option -g utf8 on
	set -g mode-mouse on
	set -g mouse-resize-pane on
	set -g mouse-select-pane on
	set -g mouse-select-window on
	set-option -g prefix C-q
	set -g history-limit 50000
	unbind-key C-b
	bind-key q send-prefix
	set -g base-index 1

	set the clipboard to ""
	set appname to "SecurID"
	set thePin to RsaTokenPin()

	activate application appname

	do shell script "networksetup -setairportpower en0 on"

	tell application appname
	activate

	#!/bin/bash

	# generate pub key
	ssh-keygen -f ~/.ssh/id_rsa.pub -e -m PKCS8 > ~/.ssh/id_rsa.pem.pub

	# encrypt \| decrypt
	openssl rsautl -encrypt -pubin -inkey ~/.ssh/id_rsa.pem.pub -ssl <<< somestring \|
	openssl rsautl -decrypt -inkey ~/.ssh/id_rsa

	#!/bin/sh

	KEYDIR=~/.ssh/keys.d/github-deploy
	CONFDIR=~/.ssh/config.d/github-deploy

	github_username=noah
	github_access_token=$(cat ~/.secret/github_access_token)

	rp=$(git rev-parse --is-inside-work-tree 2>/dev/null)

	# Apply the metallb manifests to Kubernetes
	kubectl apply -f https://raw.githubusercontent.com/google/metallb/v0.8.1/manifests/metallb.yaml

	# Apply a metallb configuration to Kubernetes
	cat <<EOF \| kubectl apply -f -
	apiVersion: v1
	kind: ConfigMap
	metadata:
	namespace: metallb-system
	name: config