consul/state: remove checks during service deregistration

consul/state/schema.go

@@ -177,6 +177,23 @@ func checksTableSchema() *memdb.TableSchema {
 					Lowercase: true,
 				},
 			},
+			"node_service": &memdb.IndexSchema{
+				Name:         "node_service",
+				AllowMissing: true,
+				Unique:       false,
+				Indexer: &memdb.CompoundIndex{
+					Indexes: []memdb.Indexer{
+						&memdb.StringFieldIndex{
+							Field:     "Node",
+							Lowercase: true,
+						},
+						&memdb.StringFieldIndex{
+							Field:     "ServiceID",
+							Lowercase: true,
+						},
+					},
+				},
+			},
 		},
 	}
 }

consul/state/state_store.go

@@ -321,6 +321,20 @@ func (s *StateStore) deleteNodeServiceTxn(idx uint64, nodeID, serviceID string,
 		return fmt.Errorf("failed service lookup: %s", err)
 	}
 
+	// Delete any checks associated with the service
+	checks, err := tx.Get("checks", "node_service", nodeID, serviceID)
+	if err != nil {
+		return fmt.Errorf("failed service check lookup: %s", err)
+	}
+	for check := checks.Next(); check != nil; check = checks.Next() {
+		if err := tx.Delete("checks", check); err != nil {
+			return fmt.Errorf("failed deleting service check: %s", err)
+		}
+	}
+	if err := tx.Insert("index", &IndexEntry{"checks", idx}); err != nil {
+		return fmt.Errorf("failed updating index: %s", err)
+	}
+
 	// Delete the service and update the index
 	if err := tx.Delete("services", service); err != nil {
 		return fmt.Errorf("failed deleting service: %s", err)

consul/state/state_store_test.go

@@ -260,17 +260,41 @@ func TestStateStore_DeleteNodeService(t *testing.T) {
 		t.Fatalf("bad: %#v (err: %#v)", ns, err)
 	}
 
-	// Delete the service
-	if err := s.DeleteNodeService(3, "node1", "service1"); err != nil {
+	// Register a check with the service
+	check := &structs.HealthCheck{
+		Node:        "node1",
+		CheckID:     "check1",
+		ServiceName: "redis",
+		ServiceID:   "service1",
+	}
+	if err := s.EnsureCheck(3, check); err != nil {
 		t.Fatalf("err: %s", err)
 	}
 
-	// The service doesn't exist and the index was updated
+	// Service check exists
+	checks, err := s.NodeChecks("node1")
+	if err != nil {
+		t.Fatalf("err: %s", err)
+	}
+	if len(checks) != 1 {
+		t.Fatalf("wrong number of checks: %d", len(checks))
+	}
+
+	// Delete the service
+	if err := s.DeleteNodeService(4, "node1", "service1"); err != nil {
+		t.Fatalf("err: %s", err)
+	}
+
+	// The service and check don't exist and the index was updated
 	ns, err = s.NodeServices("node1")
 	if err != nil || ns == nil || len(ns.Services) != 0 {
 		t.Fatalf("bad: %#v (err: %#v)", ns, err)
 	}
-	if idx := s.maxIndex("services"); idx != 3 {
+	checks, err = s.NodeChecks("node1")
+	if err != nil || len(checks) != 0 {
+		t.Fatalf("bad: %#v (err: %s)", checks, err)
+	}
+	if idx := s.maxIndex("services"); idx != 4 {
 		t.Fatalf("bad index: %d", idx)
 	}
 }