[#883] adm: Add domainOf function to resolve NNS domain

Signed-off-by: Alex Vanin <a.vanin@yadro.com>

cmd/frostfs-adm/internal/modules/morph/initialize_deploy.go

@@ -91,6 +91,10 @@ const (
 	deployMethodName = "deploy"
 )
 
+func domainOf(contract string) string {
+	return contract + ".frostfs"
+}
+
 func (c *initializeContext) deployNNS(method string) error {
 	cs := c.getContract(nnsContract)
 	h := cs.Hash
@@ -198,7 +202,7 @@ func (c *initializeContext) deployOrUpdateContracts(w *io2.BufBinWriter, nnsHash
 		cs := c.getContract(ctrName)
 
 		method := updateMethodName
-		ctrHash, err := nnsResolveHash(c.ReadOnlyInvoker, nnsHash, ctrName+".frostfs")
+		ctrHash, err := nnsResolveHash(c.ReadOnlyInvoker, nnsHash, domainOf(ctrName))
 		if err != nil {
 			if errors.Is(err, errMissingNNSRecord) {
 				// if contract not found we deploy it instead of update
@@ -595,7 +599,7 @@ func (c *initializeContext) getNetConfigFromNetmapContract() ([]stackitem.Item,
 	if err != nil {
 		return nil, fmt.Errorf("NNS is not yet deployed: %w", err)
 	}
-	nmHash, err := nnsResolveHash(c.ReadOnlyInvoker, cs.Hash, netmapContract+".frostfs")
+	nmHash, err := nnsResolveHash(c.ReadOnlyInvoker, cs.Hash, domainOf(netmapContract))
 	if err != nil {
 		return nil, fmt.Errorf("can't get netmap contract hash: %w", err)
 	}