ericboehs

How to set up Kubernetes on one or more Raspberry Pis (4b)

Estimated time needed: one hour. And then several more hours to have fun with it.

Set up Pi

Go through this section for all of your Raspberry Pis (master and nodes).

1. Install Raspberry Pi OS 64-bit Lite onto an SD card using Raspberry Pi's Imager.

• In the imager options, I configured hostname, ssh, username, but not Wi-Fi. Setting up Wi-Fi disables ethernet.

ericboehs

#! /usr/bin/env ruby
# https://gist.github.com/ericboehs/d1a88345ac526eb9851ff41155adc3bc

require 'open-uri'
require 'json'

BOLD = `tput bold`
NORMAL = `tput sgr0`

def print_all_schedules_names_and_ids

ericboehs

#! /usr/bin/env bash

curl -s -X POST -H 'Content-type: application/json' --data "{\"text\":\"${1:-Done}\"}" $BOEHS_SLACK_NOTI_HOOK

ericboehs

#! /usr/bin/env ruby

require 'rss'
require 'open-uri'

SLEEP = 30
url = 'https://rpilocator.com/feed.rss'
db = nil

# Print cpu/memory usage in bytes when receiving SIGINFO

ericboehs

#! /usr/bin/env ruby

# Eric's Offline YouTube (Download YT videos via Downie with JSON metadata and image previews and then run this script)

require 'bundler/inline'

gemfile do
  source 'https://rubygems.org'

  gem 'json'

ericboehs

source 'https://rubygems.org'

ruby '~> 3.1.0'

gem 'capybara'
gem 'pry'
gem 'webdrivers'

ericboehs

#pragma once

 // place overrides here
#define DEFAULT_LAYER_SONGS { SONG(QWERTY_SOUND), \
                              SONG(COLEMAK_SOUND), \
                              SONG(DVORAK_SOUND) \
                            }

/* Use I2C or Serial, not both */
#define USE_SERIAL

ericboehs

require 'csv'
require 'yaml'

class RuboParser
  attr_reader :file_name

  # Parses the comment before the offense.
  def self.parse_offense_meta(offense_lines)
    count = offense_lines.grep(/Offense count/).first.split(': ').last
    auto_correct = offense_lines.grep(/Cop supports/).any?

ericboehs

#! /usr/bin/env ruby

# Interface with workflows using `gh` CLI for the current branch
class GitHubBranch
  WORKFLOW = ENV.fetch 'GHB_WORKFLOW', 'Code Checks'

  # List the latest runs for the current branch.
  def list
    system %{
      gh api "repos/{owner}/{repo}/actions/runs?branch=#{branch_name}&per_page=75" |

ericboehs

require 'json'

def flatten_hash(hash)
  hash.each_with_object({}) do |(k, v), h|
    if v.is_a? Hash
      flatten_hash(v).map { |h_k, h_v| h["#{k}.#{h_k}".to_sym] = h_v }
    else 
      h[k] = v
    end
  end