Skip to content

Instantly share code, notes, and snippets.

View kbristow's full-sized avatar

Kieran Bristow kbristow

  • Absa
  • South Africa
View GitHub Profile
@janeczku
janeczku / rancher-argocd.md
Created June 10, 2020 14:10
How to register Rancher managed Kubernetes clusters in Argo CD

How to register Rancher managed Kubernetes clusters in Argo CD

Registering Rancher managed clusters in Argo CD doesn't work out of the box unless the Authorized Cluster Endpoint is used. Many users will prefer an integration of Argo CD via the central Rancher authentication proxy (which shares the network endpoint of the Rancher API/GUI). So let's find out why registering clusters via Rancher auth proxy fails and how to make it work.

Hint: If you are just looking for the solution scroll to the bottom of this page.

Why do i get an error when running argocd cluster add?

Service Account tokens and the Rancher authentication proxy

@Piotr1215
Piotr1215 / k8s-bookmarks-CKA-CKAD.html
Last active March 16, 2025 22:45
K8s bookmarks for CKA, CKAD and CKS exams
<!DOCTYPE NETSCAPE-Bookmark-file-1>
<!-- This is an automatically generated file.
It will be read and overwritten.
DO NOT EDIT! -->
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
<TITLE>Bookmarks</TITLE>
<H1>Bookmarks</H1>
<DL><p>
<DT><H3 ADD_DATE="1626629115" LAST_MODIFIED="1626629462" PERSONAL_TOOLBAR_FOLDER="true">Bookmarks bar</H3>
<DL><p>
@vlucas
vlucas / encryption.ts
Last active February 2, 2026 23:08
Stronger Encryption and Decryption in Node.js
import { createCipheriv, createDecipheriv, randomBytes } from "crypto";
const ENCRYPTION_KEY: string = process.env.ENCRYPTION_KEY || ""; // Must be 256 bits (32 characters)
const IV_LENGTH: number = 16; // For AES, this is always 16
/**
* Will generate valid encryption keys for use
* Not used in the code below, but generate one and store it in ENV for your own purposes
*/
export function keyGen() {
@kbastani
kbastani / mvnw-fix.sh
Last active April 9, 2024 15:59
Adds a settings.xml file to your Spring Boot maven wrapper
#!/usr/bin/env bash
# Secure workaround for https://issues.sonatype.org/browse/MVNCENTRAL-1369
# Navigate to the root of your Spring Boot project where a Maven wrapper is present and run this script
cd .mvn/wrapper
wget https://gist.githubusercontent.com/kbastani/d4b4c92969ec5a22681bb3daa4a80343/raw/f166086ef051369383b02dfb74317cd07b6f2c6e/settings.xml
cd ../../
./mvnw clean install -s .mvn/wrapper/settings.xml
@kevin-smets
kevin-smets / 1_kubernetes_on_macOS.md
Last active June 23, 2025 01:06
Local Kubernetes setup on macOS with minikube on VirtualBox and local Docker registry

Requirements

Minikube requires that VT-x/AMD-v virtualization is enabled in BIOS. To check that this is enabled on OSX / macOS run:

sysctl -a | grep machdep.cpu.features | grep VMX

If there's output, you're good!

Prerequisites

@martinda
martinda / git-merge-before-build.dsl
Created April 6, 2016 23:40
Jenkins Pipeline DSL code to demonstrate git merge before build
// Jenkins Pipeline DSL to demonstrate git merge before build
node {
String path = '/tmp/jenkins/upstream-repo'
sh "rm -rf ${path}"
ws(path) {
sh 'git --version'
sh 'git init'
sh 'touch README.md; git add README.md; git commit -m "init"'
sh 'git checkout -b pull-requests/1/from'
sh 'touch file.txt; git add file.txt; git commit -m "Add file"'
@evantoli
evantoli / GitConfigHttpProxy.md
Last active March 12, 2026 09:22
Configure Git to use a proxy

Configure Git to use a proxy

In Brief

You may need to configure a proxy server if you're having trouble cloning or fetching from a remote repository or getting an error like unable to access '...' Couldn't resolve host '...'.

Consider something like:

@ogrrd
ogrrd / dnsmasq OS X.md
Last active March 5, 2026 04:49
Setup dnsmasq on OS X

Never touch your local /etc/hosts file in OS X again

To setup your computer to work with *.test domains, e.g. project.test, awesome.test and so on, without having to add to your hosts file each time.

Requirements

Install

@sirbrillig
sirbrillig / pgsql_backup.sh
Last active November 15, 2025 02:29 — forked from dangerousbeans/pgsql_backup.sh
Postgresql daily backup script.
#!/bin/bash
#
# Backup a Postgresql database into a daily file.
#
BACKUP_DIR=/pg_backup
DAYS_TO_KEEP=14
FILE_SUFFIX=_pg_backup.sql
DATABASE=
USER=postgres