planutil

var (
	// DefaultPlanStrategy will use the "default", strategy
	// which defaults to Grow and Shrink
	DefaultPlanStrategy = &models.PlanStrategy{}

	// GrowAndShrinkStrategy will cause the plan to create new instances first
	// and once the changes are finished it will remove the old instances
	GrowAndShrinkStrategy = &models.PlanStrategy{
		GrowAndShrink: new(models.RollingStrategyConfig),
	}

	// RollingGrowAndShrinkStrategy will cause the plan to perform a grow and shrink
	// but instead of creating all the new instances at once, it will do it rolling.
	// This reduces the amount of available capacity for any change on clusters 1>.
	RollingGrowAndShrinkStrategy = &models.PlanStrategy{
		RollingGrowAndShrink: new(models.RollingStrategyConfig),
	}

	// MajorUpgradeStrategy represents the strategy that will
	// be used in Major version upgrades
	MajorUpgradeStrategy = &models.PlanStrategy{
		Rolling: &models.RollingStrategyConfig{
			GroupBy: AllGroupAttribute,
		},
	}

	// RollingByNameStrategy represents the strategy that will
	// be used when the plan wants to be applied one node at a
	// time without causing downtime
	RollingByNameStrategy = &models.PlanStrategy{
		Rolling: &models.RollingStrategyConfig{
			GroupBy: NameGroupAttribute,
		},
	}
)