fix #53: shardsize to string, fix nil pointer, add cold phase (#54)

pkg/es/ilm.go

@@ -245,7 +245,7 @@ func IlmCreate(conf *cfg.Config, policyname string) error {
 			haveroll = true
 		}
 
-		if cfg.HotRolloverMaxPrimaryShardSize != 0 {
+		if cfg.HotRolloverMaxPrimaryShardSize != "" {
 			rollover.MaxPrimaryShardSize = &cfg.HotRolloverMaxPrimaryShardSize
 		}
 
@@ -281,16 +281,50 @@ func IlmCreate(conf *cfg.Config, policyname string) error {
 		phases.PhasesCaster().Warm = &warm
 	}
 
+	if cfg.HaveCold() {
+		cold := types.Phase{}
+		var actions types.IlmActionsVariant = esdsl.NewIlmActions()
+
+		if cfg.ColdForceMerge != 0 {
+			actions.IlmActionsCaster().Forcemerge = &types.ForceMergeAction{MaxNumSegments: cfg.ColdForceMerge}
+		}
+
+		if cfg.ColdMinAge != "" {
+			cold.MinAge = cfg.ColdMinAge
+		}
+
+		if cfg.ColdPriority != 0 {
+			actions.IlmActionsCaster().SetPriority = &types.SetPriorityAction{Priority: &cfg.ColdPriority}
+		}
+
+		if cfg.ColdSearchableSnapshotRepo != "" {
+			actions.IlmActionsCaster().SearchableSnapshot =
+				&types.SearchableSnapshotAction{SnapshotRepository: cfg.ColdSearchableSnapshotRepo}
+		}
+
+		cold.Actions = actions.IlmActionsCaster()
+		phases.PhasesCaster().Cold = &cold
+	}
+
 	if cfg.HaveFrozen() {
-		froze := phases.PhasesCaster().Frozen
+		froze := types.Phase{}
+		var actions types.IlmActionsVariant = esdsl.NewIlmActions()
 
 		if cfg.FrozenMinAge != "" {
 			froze.MinAge = cfg.FrozenMinAge
 		}
+
+		if cfg.FrozenSearchableSnapshotRepo != "" {
+			actions.IlmActionsCaster().SearchableSnapshot =
+				&types.SearchableSnapshotAction{SnapshotRepository: cfg.FrozenSearchableSnapshotRepo}
+		}
+
+		froze.Actions = actions.IlmActionsCaster()
+		phases.PhasesCaster().Frozen = &froze
 	}
 
 	if cfg.HaveDelete() {
-		del := phases.PhasesCaster().Delete
+		del := types.Phase{}
 		delete := types.DeleteAction{}
 		var actions types.IlmActionsVariant = esdsl.NewIlmActions()
 
@@ -304,7 +338,7 @@ func IlmCreate(conf *cfg.Config, policyname string) error {
 
 		actions.IlmActionsCaster().Delete = &delete
 		del.Actions = actions.IlmActionsCaster()
-		phases.PhasesCaster().Delete = del
+		phases.PhasesCaster().Delete = &del
 	}
 
 	put := &putlifecycle.Request{}