DavesCodeMusings

#!/bin/bash

# Docker API Exec proof of concept. Run a `date` command in a container with curl.

echo "Choose a container ID (or CTRL+C to exit)"
CONTAINER_ID_LIST=$(curl --unix-socket /var/run/docker.sock http://localhost/containers/json 2>/dev/null | jq -r .[].Id)

select CONTAINER_ID in $CONTAINER_ID_LIST; do

  # Create an exec instance and retain the ID that was returned.

DavesCodeMusings

#!/usr/bin/env node

/*
 * Dynamic HTML from JavaScript without a bunch of `html += ...` madness.
 */

// Define the HTML with {{ }} placeholders for values to be filled in later.
let template = `
  <details>
    <summary><img alt="{{state}}" src="icons/{{stateIcon}}">{{name}}</summary>

DavesCodeMusings

#!/usr/bin/env node

import { request } from 'http';

// Replace containerID below.
const containerID = 'abcdefg1234567890hijklmnop1234567890qrstuv1234567890wxyz12345678';

function startExec(execID) {
  let options = {
    socketPath: '/var/run/docker.sock',

DavesCodeMusings

#!/usr/bin/env node

import { request } from 'http';

function callDockerAPI(path) {
  return new Promise ((resolve, reject) => {
  let options = {
    socketPath: '/var/run/docker.sock',
    method: 'GET',
    path: path

DavesCodeMusings

#!/usr/bin/env node

/**
 * Example of LDAP user authentication using ldapjs.
 *
 * Run like this:
 *   auth.js ; echo $?
 *
 * A successful authentication will show output like this along with a return code of 0:
 *   Connecting to: [ 'ldap://127.0.0.1:389' ]

DavesCodeMusings

---
- name: Configure mailboxes for users
  hosts: localhost
  connection: local
  become: true

  vars:
    accounts:
      - pi

DavesCodeMusings

# LED chase that pulses to the beat of the music and features a color changing background.

import machine, neopixel
from time import ticks_ms, sleep_ms

bpm = 128       # Tempo of your mix in beats per minute
num_leds = 42   # Number of NeoPixel LEDs in the strip
data_pin = 16   # Data pin for the NeoPixel strip
bg_colors = [   # Series of changing background colors
    (16, 0, 0), # red

DavesCodeMusings

# A short sequence of LED flashes that doubles in frequency with each repetition, ending with a strobe.

import machine, neopixel
from time import ticks_ms, sleep_ms

bpm = 134       # Tempo of your mix in beats per minute
num_leds = 42   # Number of NeoPixel LEDs in the strip
data_pin = 16   # Data pin for the NeoPixel strip

np = neopixel.NeoPixel(machine.Pin(data_pin), num_leds)

DavesCodeMusings

#!/usr/bin/env python3
import sys
import libvirt

conn = None
try:
    conn = libvirt.open("qemu:///system")
except libvirt.libvirtError as e:
    print(repr(e), file=sys.stderr)
    exit(1)

DavesCodeMusings

#!/usr/bin/env python3

# Define a storage pool using the libvirt API.
# virsh pool-destroy ; virsh pool-undefine can be used to remove.

import libvirt
import sys
import uuid
import os