Merge pull request #986 from threefoldtech/development_zos4_fallback_to_zos3

fallback in case of no zos4 nodes found

Author: rawdaGastan

GNUmakefile

@@ -29,7 +29,7 @@ integration: clean build-dev
 tests: unittests integrationtests
 
 clean:
-	rm -rf $(GARBAGE)
+	rm -f $(GARBAGE)
 
 lint:
 	@echo "Running $@"

internal/provider/scheduler/scheduler.go

@@ -5,8 +5,10 @@ import (
 	"context"
 	"fmt"
 	"math/rand"
+	"slices"
 
 	"github.com/pkg/errors"
+	"github.com/threefoldtech/tfgrid-sdk-go/grid-client/zos"
 	proxy "github.com/threefoldtech/tfgrid-sdk-go/grid-proxy/pkg/client"
 	proxyTypes "github.com/threefoldtech/tfgrid-sdk-go/grid-proxy/pkg/types"
 )
@@ -162,9 +164,13 @@ func (n *Scheduler) gridProxySchedule(ctx context.Context, r *Request) (uint32,
 		if err != nil {
 			return 0, errors.Wrap(err, "couldn't list nodes from the grid proxy")
 		}
-		if len(nodes) == 0 {
+		if len(nodes) == 0 && slices.Contains(f.Features, zos.NetworkType) {
 			return 0, NoNodesFoundErr
 		}
+		if len(nodes) == 0 {
+			f.Features = []string{zos.NetworkType, zos.ZMachineType}
+			continue
+		}
 		n.addNodes(nodes)
 		node = n.getNode(ctx, r)
 		if l.Page == 1 && l.Size == 10 {