GCE Auto Scaling

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GCP GCE – Auto Scaling

Autoscaled managed instance groups are useful if you need many machines all configured the same way, and you want to automatically add or remove instances based on need.

  • Automatically add or remove virtual machines from an instance group
  • Allows graceful handling of increased traffic needs, or can scale back to save costs
  • Just need to define auto-scaling policy to measure load

Auto Scaling Policies

You can scale by:

  • CPU utilization
  • Based on LB service capacity – can be utilization of LB or requests per second
  • Stackdriver Monitoring
  • Google cloud Pub/Sub queuing workload

Auto Scaling Specs

  • Only works on managed instance groups
  • Container Engine autoscaling is separate to compute Engineer autoscaling

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