satellite/~placement: do not ignore placement check for placement=0

There are cases when we would like to override the default placement=0 rule.

For example when we would like to exclude tagged nodes from the selection (by default).

Therefore we couldn't use a shortcut any more, we should always check the placement rules, even if we use placement=0.

TODO: we need to update common, and rename `EveryCountry` to `DefaultPlacement`, just to avoid confusion.

https://github.com/storj/storj/issues/6126

Change-Id: Iba6c655bd623e04351ea7ff91fd741785dc193e4

satellite/nodeselection/filter.go

@@ -215,3 +215,13 @@ func NewExcludeFilter(filter NodeFilter) ExcludeFilter {
 }
 
 var _ NodeFilter = ExcludeFilter{}
+
+// AnyFilter matches all the nodes.
+type AnyFilter struct{}
+
+// MatchInclude implements NodeFilter interface.
+func (a AnyFilter) MatchInclude(node *SelectedNode) bool {
+	return true
+}
+
+var _ NodeFilter = AnyFilter{}

satellite/orders/service.go

@@ -147,12 +147,10 @@ func (service *Service) CreateGetOrderLimits(ctx context.Context, bucket metabas
 		return nil, storj.PiecePrivateKey{}, Error.Wrap(err)
 	}
 
-	if segment.Placement != storj.EveryCountry {
-		filter := service.placementRules(segment.Placement)
-		for id, node := range nodes {
-			if !filter.MatchInclude(node) {
-				delete(nodes, id)
-			}
+	filter := service.placementRules(segment.Placement)
+	for id, node := range nodes {
+		if !filter.MatchInclude(node) {
+			delete(nodes, id)
 		}
 	}
 

satellite/overlay/placement.go

@@ -41,7 +41,9 @@ func (d *ConfigurablePlacementRule) String() string {
 // Set implements pflag.Value.
 func (d *ConfigurablePlacementRule) Set(s string) error {
 	if d.placements == nil {
-		d.placements = make(map[storj.PlacementConstraint]nodeselection.NodeFilter)
+		d.placements = map[storj.PlacementConstraint]nodeselection.NodeFilter{
+			storj.EveryCountry: nodeselection.AnyFilter{},
+		}
 	}
 	d.AddLegacyStaticRules()
 	return d.AddPlacementFromString(s)
@@ -57,7 +59,8 @@ var _ pflag.Value = &ConfigurablePlacementRule{}
 // NewPlacementRules creates a fully initialized NewPlacementRules.
 func NewPlacementRules() *ConfigurablePlacementRule {
 	return &ConfigurablePlacementRule{
-		placements: make(map[storj.PlacementConstraint]nodeselection.NodeFilter),
+		placements: map[storj.PlacementConstraint]nodeselection.NodeFilter{
+			storj.EveryCountry: nodeselection.AnyFilter{}},
 	}
 }
 
@@ -152,9 +155,6 @@ func (d *ConfigurablePlacementRule) AddPlacementFromString(definitions string) e
 
 // CreateFilters implements PlacementCondition.
 func (d *ConfigurablePlacementRule) CreateFilters(constraint storj.PlacementConstraint) (filter nodeselection.NodeFilter) {
-	if constraint == storj.EveryCountry {
-		return nodeselection.NodeFilters{}
-	}
 	if filters, found := d.placements[constraint]; found {
 		return filters
 	}

satellite/repair/checker/observer.go

@@ -355,7 +355,7 @@ func (fork *observerFork) process(ctx context.Context, segment *rangedloop.Segme
 	}
 
 	numOutOfPlacementPieces := 0
-	if fork.doPlacementCheck && segment.Placement != storj.EveryCountry {
+	if fork.doPlacementCheck {
 		outOfPlacementPieces, err := fork.nodesCache.OutOfPlacementPieces(ctx, segment.CreatedAt, segment.Pieces, segment.Placement)
 		if err != nil {
 			fork.totalStats.remoteSegmentsFailedToCheck++

satellite/repair/checker/online.go

@@ -98,7 +98,7 @@ func (cache *ReliabilityCache) MissingPieces(ctx context.Context, created time.T
 func (cache *ReliabilityCache) OutOfPlacementPieces(ctx context.Context, created time.Time, pieces metabase.Pieces, placement storj.PlacementConstraint) (_ metabase.Pieces, err error) {
 	defer mon.Task()(&ctx)(nil)
 
-	if len(pieces) == 0 || placement == storj.EveryCountry {
+	if len(pieces) == 0 {
 		return metabase.Pieces{}, nil
 	}
 

satellite/repair/repairer/segments.go

@@ -717,22 +717,20 @@ func (repairer *SegmentRepairer) classifySegmentPieces(ctx context.Context, segm
 		}
 	}
 
-	if repairer.doPlacementCheck && placement != storj.EveryCountry {
-		result.OutOfPlacementPiecesSet = map[uint16]bool{}
+	result.OutOfPlacementPiecesSet = map[uint16]bool{}
 
-		nodeFilters := repairer.placementRules(segment.Placement)
-		checkPlacement := func(reliable []nodeselection.SelectedNode) {
-			for _, node := range reliable {
-				if nodeFilters.MatchInclude(&node) {
-					continue
-				}
-
-				result.OutOfPlacementPiecesSet[nodeIDPieceMap[node.ID]] = true
+	nodeFilters := repairer.placementRules(segment.Placement)
+	checkPlacement := func(reliable []nodeselection.SelectedNode) {
+		for _, node := range reliable {
+			if nodeFilters.MatchInclude(&node) {
+				continue
 			}
+
+			result.OutOfPlacementPiecesSet[nodeIDPieceMap[node.ID]] = true
 		}
-		checkPlacement(online)
-		checkPlacement(offline)
 	}
+	checkPlacement(online)
+	checkPlacement(offline)
 
 	result.NumUnhealthyRetrievable = len(result.ClumpedPiecesSet) + len(result.OutOfPlacementPiecesSet)
 	if len(result.ClumpedPiecesSet) != 0 && len(result.OutOfPlacementPiecesSet) != 0 {