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Tobi Lehman tlehman

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tlehman / blog_setup.pp
Last active January 3, 2024 04:54
Introduction to Puppet Part 3 Manifest (incrementally building it up instead of the all-at-once approach in Part 1)
# introduced in https://tlehman.blog/p/introduction-to-puppet
# refined in https://tlehman.blog/p/introduction-to-puppet-part-3
node default {
# Ensure the required packages are installed
package { ['ruby', 'bundler', 'libyaml-dev']:
ensure => installed,
}
exec { 'gem install rails -v 7.1.2':
cwd => '/',
@tlehman
tlehman / blog_setup.pp
Last active January 2, 2024 23:28
Introduction to Puppet Part 1 Manifest
# introduced in https://tlehman.blog/p/introduction-to-puppet
# refined in https://tlehman.blog/p/introduction-to-puppet-part-2
node default {
# Ensure the required packages are installed
package { ['nginx', 'ruby', 'ruby-railties']:
ensure => installed,
}
# Configure Nginx to listen on port 80 and proxy to port 3000
file { '/etc/nginx/sites-available/default':
@tlehman
tlehman / blog.pp
Created November 30, 2023 22:06
blog catalog
node 'your-blog-name' {
# Ensure the required packages are installed
package { ['nginx', 'ruby', 'rails']:
ensure => installed,
}
# Configure Nginx to listen on port 80 and proxy to port 3000
file { '/etc/nginx/sites-available/default':
ensure => file,
@tlehman
tlehman / roam-api.sh
Created July 28, 2023 16:06
#!/bin/bash
GRAPH_NAME=tlehman
function roam_api_get_blocks_containing_string() {
curl -X POST "https://api.roamresearch.com/api/graph/$GRAPH_NAME/q" --location-trusted \
-H "accept: application/json" \
-H "Authorization: Bearer $ROAM_API_KEY" \
-H "Content-Type: application/json" \
-d "{\"query\" : \"[:find ?block-str :in \$ ?search-string :where [?b :block/uid ?block-uid] [?b :block/string ?block-str] [(clojure.string/includes? ?block-str ?search-string)]]\", \"args\": [\"$1\"]}"
@tlehman
tlehman / imgScaleToggle.js
Created March 17, 2012 00:43
Make images larger when clicked, and restores original size on next click, (depends on jQuery or similar library)
// imgscale by tlehman: Fri 03/16/2012
// toggles the size of images by some factor, defined as the variable "scale"
//
// NOTE: To change how much an image scales, just set the "scale" variable to
// some number, with 1.0 being 100%, 2.0 being 200% ... etc
//
// select images
var imgs = $("img");
@tlehman
tlehman / bip39_to_address.c
Created March 22, 2023 02:12
#include <stdio.h>
#include <string.h>
#include <openssl/sha.h>
#include <openssl/ripemd.h>
#include <bitcoin/bitcoin.h>
#define BIP39_ENTROPY_LEN 32
#define BIP39_MNEMONIC_LEN 12
void bip39_to_address(const char *mnemonic, const char *password)
@tlehman
tlehman / ec2-with-maxpods.csv
Created December 6, 2022 19:00
EC2 types with their EKS Kubernetes maxpods limit
ec2type mem_gb vcpu network_gigabits maxpods
vt1.3xlarge 24 12 3.12 58
vt1.6xlarge 48 24 6.25 234
c6gd.medium 2 1 10 8
x2gd.medium 16 1 10 8
m6gd.medium 4 1 10 8
r6gd.medium 8 1 10 8
r6g.medium 8 1 10 8
m6g.medium 4 1 10 8
c6g.medium 2 1 10 8
@tlehman
tlehman / gocui-example.go
Created June 21, 2022 18:43
Simple example of gocui that responds to the arrow keys by moving the message around on the screen
package main
import (
"errors"
"fmt"
"log"
"github.com/awesome-gocui/gocui"
)
@tlehman
tlehman / asciibrot.py
Created December 31, 2011 01:16
an ASCII Mandelbrot set in python
# code golf: generating a Mandelbrot set in ASCII
# Height and Width of terminal
H = 40; W = 80;
def coord_to_complex(i, j):
""" map the region [0,H)x[0,W) into the
complex plane """
re = float(4*i)/float(W-1) - 2.0 # real component
im = float(2.2*j)/float(H-1) - 1.1 # imaginary component
@tlehman
tlehman / threeio.rb
Created June 4, 2012 01:56
List all available three-character .io domain names (depends on colorize)
require 'net/http'
require 'colorize'
# find all available three-letter .io domains
alph = ('a'..'z')
# generate all three-character strings
threes = alph.map { |a| alph.map { |b| alph.map { |c| "#{a}#{b}#{c}" } } }.flatten
def io_available?(tld)
url = URI.parse("http://www.nic.io/cgi-bin/whois?query=#{tld}.io")