mu88

Control GPIO pins within rootless Docker container on Raspberry Pi

When it comes to controlling the GPIO pins of a Raspberry Pi, the existing tutorials will get you started in a couple of minutes. But most of the code assumes that it runs on bare metal and has sufficient privileges, e. g. to access the GPIO pins.
But what if you want to run this code in a Docker container, or even rootless? This page will explain how to set up all the necessary pieces.

Containerizing the app

Let's use the following sample code to blink an LED ([taken from the official documentation][2]) and save it under BlinkLedSample\Program.cs:

using System;
using System.Device.Gpio;
using System.Threading;

mu88

dir .\ -include bin,obj* -recurse | foreach($_) { rd $_.fullname -Recurse -Force}

mu88

$Continue = Read-Host "Do you want to continue? Enter 'Yes'"
if ($Continue -ne "Yes") {
    exit
}


if (([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator") -ne $true) {
    Write-Host "Run this script as admin"
    exit
}

mu88

// ==UserScript==
// @name         Copy Jira ticket identifier
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Concats the ticket number and title of a Jira ticket
// @author       mu88
// @match        https://<<Jira>>/browse/*
// @icon         https://<<Jira>>/s/<<Change>>/_/images/fav-generic.png
// @grant        none
// ==/UserScript==

mu88

import framebuf
import gc
from machine import Pin, SPI, I2C
import network
import time
import urequests
import utime

class INA219:
    def __init__(self, i2c_bus=1, addr=0x40):

mu88

using System.Diagnostics;
using Microsoft.EntityFrameworkCore;
using Testcontainers.MsSql;
using Testcontainers.PostgreSql;

var msSqlContainer = new MsSqlBuilder()
    .WithImage(MsSqlBuilder.MsSqlImage.Replace("mcr.microsoft.com/", string.Empty))
    .Build();
await msSqlContainer.StartAsync();
SqlServerContext.Port = msSqlContainer.GetMappedPublicPort(MsSqlBuilder.MsSqlPort);

mu88

Automatically upgrade NuGet packages and create PR in Bitbucket

Since NuKeeper is deprecated, I dediced to write it very basic PowerShell script which does the same for our on-prem Bitbucket instance. It uses the .NET global tool dotnet-outdated.

Prerequisites

Some things that come to my mind about this script:

• Tested with PowerShell 7.2.5 and Bitbucket 7.21 (on-prem)
• Script has to be executed within an already cloned Git repository
• Git repository must use http or https for the remote
• There must be a user inside Bitbucket with write permissions. The user needs an HTTP Access Token to communicate with Bitbucket.
• dotnet-outdated seems to have some issues with the old CSPROJ format, so make sure to use it only with the newer SDK-style projects.

mu88

// ==UserScript==
// @name         Bitbucket - Remove PR identifier from commit message title
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Moves the Pull Request identifier from the Git commit message title into the description
// @author       mu88
// @match        https://<<Bitbucket host>>/**/pull-requests/*/overview
// @icon         https://<<Bitbucket host>>/s/-848199135/6d8324a/n1cn5w/1.0/_/download/resources/com.atlassian.bitbucket.server.bitbucket-webpack-INTERNAL:favicon/favicon.ico
// @grant        none
// ==/UserScript==

mu88

[includeIf "gitdir:C:/source/GitHub/"]
	path = .gitconfig-github

mu88

#!/usr/bin/pwsh

Clear-Host

$repository = "<<Git repository path to work on>>"
$releaseName = "<<Name of release>>"
$tagsToKeep = @("<<Tag to keep>>")

Set-Location -Path $repository