Compute engine

• 1 sec billing with min of minute
• Sustained use discount instance running 25% at month
• Committed use discount 1-3yeat
• Pre-emptible or spot VM
  • preemtible can run max 24 hours
  • less features

Loadbalancer

• Cloud Loadbalancer.
  • cross region loadbalancing
  • multi-region failover
  • no pre-warming required

Types of LB

• Global https
• Global SSL proxy
• Global TCP proxy
• Regional external
• Regional internal

• Cross region Internal

• Cloud DNS

• Cloud CDN

OS Login

• OS login lets you control access to VM using IAM permission. Also possible to enable 2FA with OS login.
• OS login can be enabled on instance by adding Metadata enable-oslogin=true to instance
• To enable for all instances, enable it in project metadata.
• compute.osLogin or osLoginAdmin role can be assigned.
• osLoginExternalUser to allow connection from different Org.

Image

Image can be created from

• disk
• Image
• Snapshot
• Cloud Storage file
• virtual disk

Images can be deleted or deprecated.

Instance template

• Templates are readonly, cannot be updated
• Not all options available via console like image family, persistent disk etc.

VM Manager

Tools to manage group of VM and OS. Can control configuration, patch, inventory etc.