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524c / Upgrading Kubernetes Cluster with Kops, and Things to Watch Out For.md
Created June 11, 2024 11:49 — forked from stevenc81/Upgrading Kubernetes Cluster with Kops, and Things to Watch Out For.md

Upgrading Kubernetes Cluster with Kops, and Things to Watch Out For

Alright! I'd like to apologize for the inactivity for over a year. Very embarrassingly, I totally dropped the good habit. Anyways, today I'd like to share a not so advanced and much shorter walkthrough on how to upgrade Kubernetes with kops.

At Buffer, we host our own k8s (Kubernetes for short) cluster on AWS EC2 instances since we started our journey before AWS EKS. To do this effectively, we use kops. It's an amazing tool that manages pretty much all aspects of cluster management from creation, upgrade, updates and deletions. It never failed us.

How to start?

Okay, upgrading a cluster always makes people nervous, especially a production cluster. Trust me, I've been there! There is a saying, hope is not a strategy. So instead of hoping things will go smoothly, I always have bias that shit will hit the fan if you skip testing. Plus, good luck explaining to people

@524c
524c / ES6, ES7, ES8, ES9, ES10 and ES11 features.md
Created October 8, 2023 23:46 — forked from rajaramtt/ES6, ES7, ES8, ES9, ES10 and ES11 features.md
Javascript all versions features list
@524c
524c / gist:0e2e2fadd3345191f06186781edcfd9c
Created September 30, 2023 22:23 — forked from marlosirapuan/gist:778d6beda5f8ab95695748011c864b19
Download .m3u8 files on MacOS

Install ffmpeg

brew install ffmpeg

Download file through url, like this:

ffmpeg -protocol_whitelist file,http,https,tcp,tls,crypto -i "http://url-file.domain.m3u8" -c copy video.mp4
@524c
524c / esmodules.md
Created September 14, 2023 14:58 — forked from danpetitt/esmodules.md
Typescript, Jest and ECMAScript Modules

Typescript, Jest and ECMAScript Modules (ESM)

Package.json

Add the type property to package.json to ensure modules are supported:

{
  "type": "module",
}
@524c
524c / libevent-example.c
Created August 16, 2023 12:42 — forked from ajhwb/libevent-example.c
Asynchronous network I/O using libevent
/*
* Libevent is a high-performance and portable asynchronous networking I/O library (http://libevent.org)
* This is small program to demonstrate the basic of libevent programming
*
* Copyright (C) 2012, Ardhan Madras <ardhan@rocksis.net>
*/
#include <event.h>
#include <arpa/inet.h>
#include <netinet/in.h>
@524c
524c / saga-sample.js
Created April 27, 2023 15:43 — forked from icebob/saga-sample.js
Saga middleware PoC for Moleculer
"use strict";
const _ = require("lodash");
const chalk = require("chalk");
const Promise = require("bluebird");
const ServiceBroker = require("../src/service-broker");
const { MoleculerError } = require("../src/errors");
// --- SAGA MIDDLEWARE ---
const SagaMiddleware = function() {
@524c
524c / javascript-prototype-pollution.md
Created April 7, 2023 15:13 — forked from sttk/javascript-prototype-pollution.md
Javascript Prototype Pollution

Javascript Prototype Pollution

Javascript prototype specification

// Not only Object but also other types. (Function, Array, String, Number, ...)
Object.prototype.prop1 = 1;
Object.prototype.func1 = () => 'Hello!';                                        

const obj1 = {};
@524c
524c / mime.html
Created April 5, 2023 15:38 — forked from ilmoralito/mime.html
How to check real mime type of image in javascript
<html>
<head>
<script type="text/javascript" src="/jquery.min.js"></script>
<title>Mime type checker</title>
<script>
$(function () {
var result = $('div#result');
if (window.FileReader && window.Blob) {
$('span#submit').click(function () {
var files = $('input#file').get(0).files;
@524c
524c / DockerfileForSvelteKit.md
Created March 13, 2023 18:03 — forked from aradalvand/DockerfileForSvelteKit.md
Dockerfile and .dockerignore for SvelteKit:

This Dockerfile is intended for SvelteKit applications that use adapter-node.

Dockerfile:

FROM node:16-alpine AS builder
WORKDIR /app
COPY package*.json .
RUN npm ci
COPY . .
RUN npm run build
@524c
524c / configmap.yaml
Created February 24, 2023 19:55 — forked from tuananh/configmap.yaml
Pi-hole on Kubernetes
apiVersion: v1
kind: ConfigMap
metadata:
name: pihole-config
data:
WEBPASSWORD: pihole
TZ: 'Asia/Ho_Chi_Minh'
DNS1: 1.1.1.1
DNS2: 1.0.0.1