plan

type Plan struct {
	// Nodes observed when the plan is built.
	Nodes []model.PaxosNode `json:"nodes,omitempty"`

	// Steps of the plan.
	Steps []Step `json:"steps,omitempty"`
}

type Step struct {
	// Type of the step.
	Type StepType `json:"type,omitempty"`
	// Original generation of the target.
	// Valid for StepTypeBumpGen, StepTypeUpdate, StepTypeReplace and StepTypeDelete.
	OriginGeneration int64 `json:"origin_generation,omitempty"`
	// Original host of the target.
	// Valid for StepTypeBumpGen, StepTypeUpdate, StepTypeReplace and StepTypeDelete.
	OriginHost string `json:"origin_host,omitempty"`
	// Target generation of the target. Valid for all StepTypeBumpGen, StepTypeUpdate, StepTypeReplace and StepTypeCreate.
	TargetGeneration int64 `json:"target_generation,omitempty"`
	// Target host of the target. If it is empty, it means the host is not specified.
	// Valid for all StepTypeBumpGen, StepTypeUpdate, StepTypeReplace and StepTypeCreate.
	TargetHost string `json:"target_host,omitempty"`
	// Target pod of the step.
	Target string `json:"target,omitempty"`
	// Target role.
	TargetRole string `json:"role,omitempty"`
	// Node set.
	NodeSet string `json:"node_set,omitempty"`
	// Index in node set.
	Index int `json:"index,omitempty"`
	// Volumes that is going to use in the step.
	Volumes []string `json:"volumes,omitempty"`
}

type StepType string