Notes

IaaS and PaaS

• IaaS delivers on-demand infrastructure resources vis the cloud, it provide raw compute, storage, and network capabilities, organized virtually into resources that are similar to physical data centers.
  • Compute Engine is an example of a Google Cloud IaaS service
  • Pay for what they allocate
• PaaS delivers and manages all the hardware and software through the cloud, it bind code to libraries that provide access to the infrasctructure application needs
  • App Engine is an example of a Google Cloud PaaS service
  • Pay for what they use

Resources Hierarchies (4 levels):

• Resoruces
  • IDs are immutable, names are mutable, project number is for Google Cloud's use
• Projects
  • can contain subfolders
• Folders
  • can group projects on a per-department basis
• Organization Node

Policies are defined at the project, folder, and organization node levels. Policies are inherited downwards

IAM roles

• Basic IAM role
  • Owner, Viewer, Editor, Billing AdmiAdmin
• Predefined IAM role
• Custom IAM role

Compute Engine Pricing

• Sustained-use (discount starts after 25% of a month)
• committed-use (57% discount)
• preemptible & spot VMs (jobs can be terminated and rescheduled by cloud. can save up to 90%)

Compute Engine Storage Options

• Zonal persistent disk
• Regional presistent disk
• Local SSD: high performance, transient
• Cloud storage buckets
• filestore: high performance file storage

VPCs have built-in routing tables

VPCs do not require a firewall to be provisioned