athiwatp athiwatp

Adaptive Streaming has become the neccessity for streaming video and audio. Unfortantely, as of this post, there isn't a whole lot of tutorials that accumulate all of the steps to get this working. Hopefully this post achieves that. This post focuses on using Amazon Web Services (AWS) to transcode for HLS and DASH and be the Content Delivery Network (CDN) that delivers the stream to your web page. We'll be using Video.js for the HTML5 player as well as javascript support libaries to make Video.js work with HLS and DASH.

So Here's what you need:

Set up three S3 buckets

Setting up a Kubernetes Cluster on DigitalOcean

Introduction
Prerequisite Tools
- Homebrew
- Doctl
- Kubectl
Initial Cluster Setup
- Cluster Creation

Manually Acquiring The Cluster Config File

Wordpress & Docker

This file will setup Wordpress, MySQL & PHPMyAdmin with a single command. Add the code below to a file called "docker-compose.yaml" and run the command

$ docker-compose up -d

# To Tear Down
$ docker-compose down --volumes

Strings

`String.prototype.*`

None of the string methods modify this – they always return fresh strings.

charAt(pos: number): string ^ES1

Returns the character at index pos, as a string (JavaScript does not have a datatype for characters). str[i] is equivalent to str.charAt(i) and more concise (caveat: may not work on old engines).

First of all, please note that token expiration and revoking are two different things.

Expiration only happens for web apps, not for native mobile apps, because native apps never expire.
Revoking only happens when (1) uses click the logout button on the website or native Apps;(2) users reset their passwords; (3) users revoke their tokens explicitly in the administration panel.

1. How to hadle JWT expiration

A JWT token that never expires is dangerous if the token is stolen then someone can always access the user's data.

Quoted from JWT RFC:

	package main

	import (
	"fmt"
	"sort"
	"time"
	)

	type reviews_data struct {
	review_id string

	alias h3='helm3'

	#I can only make it work in kube-system
	kubectl config set-context $(kubectl config current-context) --namespace=kube-system

	#to be replaced with helm?
	kubectl apply -f https://raw.githubusercontent.com/jetstack/cert-manager/release-0.8/deploy/manifests/00-crds.yaml

	h3 upgrade --install cert-manager \
	--version v0.8.0 jetstack/cert-manager \

	package main

	import (
	"bytes"
	"crypto/tls"
	"encoding/base64"
	"encoding/xml"
	"fmt"
	"log"
	"net/http"

	resource "aws_ami_copy" "ubuntu-18_04-encrypted" {
	name = "${data.aws_ami.ubuntu-18_04.name}-encrypted"
	description = "${data.aws_ami.ubuntu-18_04.description} (encrypted)"
	source_ami_id = "${data.aws_ami.ubuntu-18_04.id}"
	source_ami_region = "${var.region}"
	encrypted = true

	tags {
	ImageType = "encrypted-ubuntu-18_04"
	}

	package main

	import (
	"encoding/json"
	"fmt"
	"net/http"
	"time"

	"github.com/hashicorp/vault/api"
	"github.com/hashicorp/vault/builtin/credential/aws"