Por trás da infraestrutura do Cloud

Gleicon Moraes @gleicon | http://github.com/gleicon | http://blog.7co.cc

PREAMBULO

Sua aplicação começa assim

DatabaseApp Server

e App Servers Database

cresce App Servers Master DB

Slave DB

mais App Servers Master DB

Slave DB

Cache

ou App Servers Master DB

Slave DB

Cache

Indexing Service

menos App Servers Master DB

Slave DB

Cache

Indexing Service

API Servers

desse App Servers Master DB

Slave DB

Cache

Indexing Service

API Servers

Load Balancer/Reverse Proxy

jeito App Servers Master DB

Slave DB

Cache

Indexing Service

API Servers

Load Balancer/Reverse Proxy

Auth Service

Modelos de Serviço

• Hospedagem – servidores compartilhados

• Colocation e servidores dedicados

• Cloud –Infraestrutura como Serviço

•  PaaS – Plataforma como Serviço

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

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

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

IaaS - tl;dr

•  “Automate infrastructure such as the customer will not know the underlying details, will not manage them and can provision services automagically.”

Cloud - building blocks

•  Compute - virtual servers, images •  Storage • Network devices: firewall, switches, load

balancer, DNS •  Services (management, security, project)

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

Arquitetura - Cloud

Simplestack SimpleNet/Quantum

Firewall Network Gear

Physical Servers hypervisor

Main Network

Internet

ovs

Provisionamento - Cloud

Provisioner

Control Panel API Sales

Cloud

?

Obrigado !