anderson-marques

public class Cafeteira {
    public static void main( String[] args )
    {
        System.out.println( "Bem vindo ao Cafe Sem Liskov!" );

        Cafe cafezinho = new Cafe();

        AcucarComum acucarComum = new AcucarComum();
        AcucarEmCubos acucarEmCubos = new AcucarEmCubos();
        AcucarMascavo acucarMascavo = new AcucarMascavo();

anderson-marques

public class Cafe extends Bebida {
  public void adicionarAcucarComum(AcucarComum acucarComum) {
    acucarComum.adocar(this);
  }

  public void adicionarAcucarEmCubos(AcucarEmCubos acucarEmCubos) {
    acucarEmCubos.adocar(this);
  }

  public void adicionarAcucarMascavo(AcucarMascavo acucarMascavo) {

anderson-marques

eksctl create cluster --name dev \
                      --version 1.16 \
                      --region us-east-1 \
                      --nodegroup-name standard-workers \
                      --node-type t3.micro \
                      --nodes 3 \
                      --nodes-min 1 \
                      --nodes-max 4 \
                      --managed

anderson-marques

curl --silent --location "https://github.com/weaveworks/eksctl/releases/latest/download/eksctl_$(uname -s)_amd64.tar.gz" | tar xz -C /tmp
sudo mv /tmp/eksctl /usr/bin
eksctl version

anderson-marques

curl -o kubectl https://amazon-eks.s3.us-west-2.amazonaws.com/1.16.8/2020-04-16/bin/linux/amd64/kubectl
chmod +x ./kubectl
mkdir -p $HOME/bin && cp ./kubectl $HOME/bin/kubectl && export PATH=$PATH:$HOME/bin
kubectl version --short --client

anderson-marques

curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"
unzip awscliv2.zip
sudo ./aws/install --bin-dir /usr/bin --install-dir /usr/bin/aws-cli --update
aws --version

anderson-marques

K8s Architecture

Master - Control Plane

Master - Controle Plane Components

kube-apiserver

• Communicates with the user
• REST APIs

anderson-marques

K8S Commands

Expose POD as a Load Balanced Service

$ kubectl expose pod [pod-name] --name=[service-name] --type=LoadBalancer

Describe Service Information

anderson-marques

// https://repl.it/@marquesanderson/generate-metric-data-from-api-call-event

const RxJS = require('rxjs')
const map = require('rxjs/operators').map
const concatAll = require('rxjs/operators').concatAll
const toArray = require('rxjs/operators').toArray

let apiCalls$ = RxJS.from([
  {
    accountId: 1,

anderson-marques

'use scrict'

\**
* https://repl.it/@marquesanderson/fake-sns
*\

const events = require('events')
const eventsEmitter = new events.EventEmitter()

class SNSPublisher {