admin: Refactor task destination planning (#7063)

* refactor planning into task detection

* refactoring worker tasks

* refactor

* compiles, but only balance task is registered

* compiles, but has nil exception

* avoid nil logger

* add back ec task

* setting ec log directory

* implement balance and vacuum tasks

* EC tasks will no longer fail with "file not found" errors

* Use ReceiveFile API to send locally generated shards

* distributing shard files and ecx,ecj,vif files

* generate .ecx files correctly

* do not mount all possible EC shards (0-13) on every destination

* use constants

* delete all replicas

* rename files

* pass in volume size to tasks

weed/worker/tasks/base/task_definition.go

@@ -26,14 +26,14 @@ type TaskDefinition struct {
 	ConfigSpec ConfigSpec
 
 	// Task creation
-	CreateTask func(params types.TaskParams) (types.TaskInterface, error)
+	CreateTask func(params *worker_pb.TaskParams) (types.Task, error)
 
 	// Detection logic
 	DetectionFunc func(metrics []*types.VolumeHealthMetrics, info *types.ClusterInfo, config TaskConfig) ([]*types.TaskDetectionResult, error)
 	ScanInterval  time.Duration
 
 	// Scheduling logic
-	SchedulingFunc func(task *types.Task, running []*types.Task, workers []*types.Worker, config TaskConfig) bool
+	SchedulingFunc func(task *types.TaskInput, running []*types.TaskInput, workers []*types.WorkerData, config TaskConfig) bool
 	MaxConcurrent  int
 	RepeatInterval time.Duration
 }