Preskton

Hachyderm Interactive Mastodon Upgrade Script

This is the interactive script the Hachyderm team ran to upgrade to Mastodon version v4.1.3. Please note by interactive, we mean human-powered. This is not yet meant to be run in an automated fashion.

We have a couple of interesting things about our infrastructure:

• We're not running in Docker nor Kubernetes, we install directly to the host.
• We're running Arch and because of this, we're running Node v19 (not the v16 recommneded by Mastodon). This means we have to do a little more around openssl when running the assets precompile
• We run several different servers, each with a unique "role" - mastodon-web, mastodon-sidekiqs, mastodon-streaming. This provides us flexibility if we need to scale a particular component.
• We preserve X number of old versions of mastodon on our hosts (/var/lib/mastodon-versions) and use symlinks to /var/lib/mastodon in the event we need to rollback.

Preskton

List hostnames with certain tags

The .Tags // [] is the key - sometimes .Tags is null, which can cause jq to stop processing the stream early.

tailscale status --json | jq '.Peer | to_entries[].value | select(.Tags // [] | contains(["tag:env-prod", "tag:role-edge"])) | .HostName'

Preskton

#include <LiquidCrystal_I2C.h>

#include <Key.h>
#include <Keypad.h>

const byte ROWS = 4;
const byte COLS = 4;

char keys[ROWS][COLS] = {
  {'1', '2', '3', 'A'},

Preskton

package main

import (
	"fmt"
)

func main() {
	fmt.Println("iuykbbooloooobwoomy xander ip address 1111111111111 nhjkolp 2468")
	fmt.Println("bvcxzzxcvblkjhgfdsasdfghjkl,mnnmpoiuytrewqqwertyuiop098765432112345678900123456789")
	fmt.Println("lkyiyiujyu7jguhyjgyuhh=hnbjnbhbb+ukhkjhkkjkkkIUIUIUIUU1234567890098765432")

Preskton

SUBSCRIPTION_NAMES=$(az account list | jq -r --arg ACCOUNT_FILTER "$AZA_ACCOUNT_FILTER" '.[].name | select(. | contains($ACCOUNT_FILTER))')

echo "$SUBSCRIPTION_NAMES" | while read subscription; do
    az "$@" --subscription "$subscription"    
done

Preskton

################################################################################################################
#	Cosmos DB Azure Toolkit - Set Azure CosmosDB instance databases to standard throughput (RUs)
#
#	Prereqs
#	----------
#	- `jq` - to install, `apt-get install jq`
#	- Azure CLI (`az`) - to install, `curl -L https://aka.ms/InstallAzureCli | bash` and restart your shell
#
#	Usage

Preskton

using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.CSharp;
using Microsoft.CodeAnalysis.CSharp.Syntax;
using Microsoft.CodeAnalysis.MSBuild;
using Microsoft.CodeAnalysis.FindSymbols;