Palestra na arena Hypátia da Campus Party 2014 sobre Cloud, IaaS e a vida de aplicações na web

1. Por trás da
infraestrutura do Cloud
Gleicon Moraes
@gleicon | http://github.com/gleicon | http://blog.7co.cc

2. PREAMBULO

3. Sua aplicação começa
assim
App Server
Database

4. e
App Servers
Database

5. cresce
App Servers
Master DB
Slave DB

6. mais
App Servers
Master DB
Slave DB
Cache

7. ou
App Servers
Master DB
Slave DB
Cache
Indexing Service

8. menos
App Servers
Master DB
Slave DB
Cache
Indexing Service
API Servers

9. desse
App Servers
Master DB
Load Balancer/Reverse Proxy
Slave DB
Cache
Indexing Service
API Servers

10. jeito
App Servers
Master DB
Load Balancer/Reverse Proxy
Slave DB
Cache
Indexing Service
Auth Service
API Servers

11. Modelos de Serviço
• Hospedagem – servidores
compartilhados
• Colocation e servidores dedicados
• Cloud –Infraestrutura como Serviço
• PaaS – Plataforma como Serviço

12. Modelos de Serviço
• Single tenant / Physical Server
• Single tenant / VM
• Multiple tenants / VM
• Multiple tenants / Physical Server
• Multiple VMs / Physical Server
• Multiple tenants on a pool of virtual/physical
servers

13. IaaS - NIST definition
•
•
The capability provided to the consumer is to provision
processing, storage, networks, and other fundamental
computing resources where the consumer is able to deploy
and run arbitrary software, which can include operating
systems and applications.
The consumer does not manage or control the underlying
cloud infrastructure but has control over operating systems,
storage, and deployed applications; and possibly limited
control of select networking components (e.g., host
firewalls).
* http://csrc.nist.gov/publications/nistpubs/800-145/SP800-145.pdf

14. IaaS - Wikipedia
•
In this most basic cloud service model, cloud providers offer computers, as
physical or more often as virtual machines, and other resources. The virtual
machines are run as guests by a hypervisor, such as Xen or KVM.
Management of pools of hypervisors by the cloud operational support
system leads to the ability to scale to support a large number of virtual
machines. Other resources in IaaS clouds include images in a virtual machine
image library, raw (block) and file-based storage, firewalls, load balancers, IP
addresses, virtual local area networks (VLANs), and software bundles.[46]
IaaS cloud providers supply these resources on demand from their large
pools installed in data centers. For wide area connectivity, the Internet can
be used or—in carrier clouds -- dedicated virtual private networks can be
configured.
* http://en.wikipedia.org/wiki/Infrastructure_as_a_service#Service_models

15. IaaS - tl;dr
•
Automate infrastructure such as the customer will not
know the underlying details, will not manage them and
can provision services automagically.

16. Cloud - building blocks
• Compute - virtual servers, images
• Storage
• Network devices: firewall, switches, load
•
balancer, DNS
Services (management, security, project)

17. Cloud - Resumido
•
•
•
•
•
•
•
Hypervisor + servidores + storages + rede = time
sharing/heavy lifting
Capacity planning diferente de servidores fisicos
Configuração flexível
Provisionamento rápido
Vertical Scaling
Horizontal scaling
Serviços de gerenciamento

18. Arquitetura - Cloud
Internet
Main Network
Physical Servers
hypervisor
Simplestack
ovs
Network
Gear
SimpleNet/Quantum
Firewall

19. Provisionamento - Cloud
Cloud
Control Panel
API
Sales
Provisioner

20. ?

21. Obrigado !