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Melhores Práticas no Uso da Nuvem AWS

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Criar uma conta AWS
Criar um usuário IAM e habilitar MFA (Fator de Multi Autenticação)
Criar chaves SSH (utilizadas para acessar suas instâncias)
Criar um Security Group (firewall)
Iniciar uma instância EC2 (máquina virtual)
Neste slide, que tem um vídeo complementar publicado no YouTube, mostramos os conceitos e de forma prática como iniciar na AWS:
1. Criando a sua conta
2. Conectar na instância EC2
3. Utilizar o S3 (armazenamento conectado à internet)
4. Criar um alarme CloudWatch
5. Backup e restauração da sua instância EC2
6. Visualizar os custos AWS e configurar alertas de gastos

Publicada em: Software
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Melhores Práticas no Uso da Nuvem AWS

  1. 1. Começando na AWS Rubens Devito, Arquiteto de Soluções, AWS April 15, 2015
  2. 2. Vamos Começar • Criar uma conta AWS • Criar um usuário IAM e habilitar MFA (Fator de Multi Autenticação) • Criar chaves SSH (utilizadas para acessar suas instâncias) • Criar um Security Group (firewall) • Iniciar uma instância EC2 (máquina virtual) • Conectar na instância EC2 • Utilizar o S3 (armazenamento conectado à internet) • Criar um alarme CloudWatch • Backup e restauração da sua instância EC2 • Visualizar os custos AWS e configurar alertas de gastos
  3. 3. Nível Gratuito (Free Tier) • Inclui a maioria dos serviços AWS • Disponível para todas as contas novas • Até 1 ano a partir da data de criação da conta • Tudo que demonstrarmos hoje pode ser feito pelo Nível Gratuito (Free Tier) • Mais detalhes em http://aws.amazon.com/pt/free/?nc2=h_ls
  4. 4. Inscrição • Inscreva-se através do link aws.amazon.com/pt/ • Você precisará de um cartão de crédito • Haverá uma verificação por telefone
  5. 5. Demo: inscrevendo-se na AWS
  6. 6. Criando Usuários IAM Utilizando o Gerenciador de Identidades e Acessos da AWS (IAM), você pode criar e administrar usuários e grupos AWS Você consegue controlar qual recurso cada usuário tem acesso, evitando contas com permissões em excesso.
  7. 7. Habilitando Fator de Multi Autenticação (MFA) AWS te permite exigir fator de multi autenticação para seus usuários através de tokens tanto físicos quanto não-físicos (software) com o intuito de frustrar senhas roubadas e key loggers como um vetor de ataque
  8. 8. Demo: criando um usuário IAM e habilitando MFA
  9. 9. Criando sua chave SSH • SSH significa Secure Shell • Chaves SSH são utilizadas para fornecer acesso seguro à EC2 (Linux) • Chaves SSH evitam as fraquezas das senhas • É possível importar sua própria ou utilizar chaves criadas na AWS
  10. 10. Demo: criando chaves SSH
  11. 11. Criando um Security Group • Security Groups são firewalls para suas instâncias • Por padrão, o Security Group bloqueia tudo • Escolha quais protocolos e portas serão abertas – É possível utilizar intervalos para as portas (ex. 22-24) • Escolha para quais endereços as portas estarão abertas – Utiliza regras CIDR para acesso de um endereço IP – (Utilize /32 para permitir um único endereço)
  12. 12. Demo: criando um security group
  13. 13. Inicar uma Nova Instância • Instâncias são máquinas virtuais rodando na nuvem • Você tem total controle da instância e pode instalar qualquer software de sua escolha • Neste processo, você define que tipo de máquina você quer (poder de processamento, tamanho do armazenamento, etc.) • Você irá precisar: – Um Par de Chaves (Key Pair) para conectar à sua instância via SSH – Um Security Group para colocar sua instância
  14. 14. Demo: inicializando uma instância EC2
  15. 15. S3 • S3 significa Amazon Simple Storage Service • Armazena e recupera quase qualquer quantidade de dados: 1 Byte até 5 Terabytes • Altamente escalável e durável • Encriptação disponível • O armazenamento é isolado por Região AWS • Permissões no nível do objeto • Facilmente acessível
  16. 16. Demo: utilizando S3
  17. 17. Conectando nas Instâncias EC2 • SSH é utilizado para conectar em Linux • Remote Desktop é utilizado para conectar em Windows
  18. 18. Conectando em uma Instância Linux à partir de um Linux/Mac OS X • Abra o Terminal • ssh -i {local da chave SSH privada} ec2- user@{nome DNS público}
  19. 19. Conectando em uma Instância Linux à partir do Windows • Baixe/Instale PuTTY – http://bit.ly/1jsQjnt • Converta o arquivo .pem para .ppk utilizando PuTTYgen • Crie uma conexão no PuTTY
  20. 20. Conectando em uma Instância Windows à partir do Windows • Abra uma conexão no Remote Desktop • Windows + r ou Inicar e então a opção “Executar” • mstsc /v:{nome DNS público da instância EC2}
  21. 21. Demo: conectando à uma instância EC2
  22. 22. Demo: conectando à uma instância EC2 através do Console de Administração AWS
  23. 23. CloudWatch • CloudWatch provê informações de monitoramento para suas instâncias EC2 • CloudWatch te permite especificar ações a serem tomadas quando uma condição é atendida – Exemplo 1: Envie um email quando CPU Utilization >80% por 5 minutos – Exemplo 2: Adicione outra máquina à um Auto-Scaling Group se Average Disk Read IOPS entre um Auto-Scaling Group exceder 500 – Exemplo 3: Remova uma máquina de um Auto-Scaling Group se Network input cair para menos de 2,000 Bytes
  24. 24. Demo: criando um alarme CloudWatch
  25. 25. Informações adicionais • CloudWatch funciona com Auto Scaling • Quando você definiu um Auto-Scaling Group, alarmes CloudWatch podem ser utilizados para aumentar ou diminuir os recursos no Auto- Scaling Group.
  26. 26. Elastic Block Storage • Elastic Block Storage (EBS) é um armazenamento de nível de bloco para instâncias EC2 (imagine disco rígido HD) • Volumes EBS podem ser removidos e reinseridos • Tamanhos de volumes personalizados de 1GB– 16 TB (RAID para maior espaço) • Use IOPS para I/O previsível • Volumes General Purpose (SSD) NOVO!
  27. 27. Demo: backup de um volume EBS
  28. 28. Restaurando Snapshot / Criando uma imagem (AMI) • AMIs são imagens (Amazon Machine Images) • AMIs são versões de boot do snapshot (backup) • AMIs são particulares, mas você tem a escolha de compartilhar com outras contas.
  29. 29. Demo: criando uma Imagem (AMI) e restaurando um backup (snapshot)
  30. 30. Faturamento e Gestão de Custos AWS • Diversos recursos para te ajudar a monitorar custos e visualizar seus gastos AWS: – Explorador de Custos (Cost Explorer) – Alertas para Limites de Gastos – Relatórios de Faturamento (Billing Reports) detalhados – Faturamento Consolidado (Consolidated Billing)
  31. 31. Demo: console da AWS Account billing
  32. 32. O que nós cobrimos • Criação de uma conta AWS • Criação de um usuário IAM e habilitamos MFA (Fator de Multi Autenticação) • Criação de chaves SSH (utilizadas para acessar suas instâncias) • Criação de um Security Group (firewall) • Inicialização de uma instância EC2 (máquina virtual) • Conectamos na instância EC2 • Utilização do S3 (armazenamento conectado à internet) • Criação de um alarme CloudWatch • Backup e restauração da sua instância EC2 • Visualizção dos custos AWS e configuração de alertas de gastos
  33. 33. Perguntas? Também interajam conosco: Twitter: @AWSCloud | @BrasilAWS Forums: https://forums.aws.amazon.com Fórum Brasil: http://www.awshub.com.br

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