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Engine Scaling

Firebolt Engine supports scaling up and down by patching the spec.replicas field. The Firebolt Operator handles the transition automatically, applying one of the rollout strategies defined in Engine Rollouts.

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Scale or update

Patch spec.replicas to scale the engine: 
kubectl patch fireng my-engine -n firebolt \
  --type merge -p '{"spec":{"replicas":2}}'
The Firebolt Operator handles the zero-downtime transition automatically.

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Stop and resume

Set spec.replicas to 0 to stop the engine without deleting the custom resource: 
kubectl patch fireng my-engine -n firebolt \
  --type merge -p '{"spec":{"replicas":0}}'
Resume by setting a non-zero replica count: 
kubectl patch fireng my-engine -n firebolt \
  --type merge -p '{"spec":{"replicas":2}}'