[#1593] adm: Support changing network config

Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>

cmd/neofs-adm/README.md

@@ -70,6 +70,8 @@ credentials:     # passwords for consensus node / alphabet wallets
 
 #### Network maintenance
 
+- `set-config` add/update configuration values in the Netmap contract.
+
 - `force-new-epoch` increments NeoFS epoch number and executes new epoch
   handlers in NeoFS nodes.
 

cmd/neofs-adm/internal/modules/morph/dump.go → cmd/neofs-adm/internal/modules/morph/config.go

@@ -6,6 +6,8 @@ import (
 	"encoding/hex"
 	"errors"
 	"fmt"
+	"strconv"
+	"strings"
 	"text/tabwriter"
 
 	"github.com/nspcc-dev/neo-go/pkg/io"
@@ -21,6 +23,8 @@ import (
 
 const lastGlagoliticLetter = 41
 
+const forceConfigSet = "force"
+
 type contractDumpInfo struct {
 	hash    util.Uint160
 	name    string
@@ -209,3 +213,90 @@ func dumpNetworkConfig(cmd *cobra.Command, _ []string) error {
 
 	return nil
 }
+
+func setConfigCmd(cmd *cobra.Command, args []string) error {
+	if len(args) == 0 {
+		return errors.New("empty config pairs")
+	}
+
+	wCtx, err := newInitializeContext(cmd, viper.GetViper())
+	if err != nil {
+		return fmt.Errorf("can't initialize context: %w", err)
+	}
+
+	cs, err := wCtx.Client.GetContractStateByID(1)
+	if err != nil {
+		return fmt.Errorf("can't get NNS contract info: %w", err)
+	}
+
+	nmHash, err := nnsResolveHash(wCtx.Client, cs.Hash, netmapContract+".neofs")
+	if err != nil {
+		return fmt.Errorf("can't get netmap contract hash: %w", err)
+	}
+
+	forceFlag, _ := cmd.Flags().GetBool(forceConfigSet)
+
+	bw := io.NewBufBinWriter()
+	for _, arg := range args {
+		k, v, err := parseConfigPair(arg, forceFlag)
+		if err != nil {
+			return err
+		}
+
+		// In NeoFS this is done via Notary contract. Here, however, we can form the
+		// transaction locally. The first `nil` argument is required only for notary
+		// disabled environment which is not supported by that command.
+		emit.AppCall(bw.BinWriter, nmHash, "setConfig", callflag.All, nil, k, v)
+		if bw.Err != nil {
+			return fmt.Errorf("can't form raw transaction: %w", bw.Err)
+		}
+	}
+
+	err = wCtx.sendCommitteeTx(bw.Bytes(), -1, true)
+	if err != nil {
+		return err
+	}
+
+	return wCtx.awaitTx()
+}
+
+func parseConfigPair(kvStr string, force bool) (key string, val interface{}, err error) {
+	kv := strings.SplitN(kvStr, "=", 2)
+	if len(kv) != 2 {
+		return "", nil, fmt.Errorf("invalid parameter format: must be 'key=val', got: %s", kvStr)
+	}
+
+	key = kv[0]
+	valRaw := kv[1]
+
+	switch key {
+	case netmapAuditFeeKey, netmapBasicIncomeRateKey,
+		netmapContainerFeeKey, netmapContainerAliasFeeKey,
+		netmapEigenTrustIterationsKey,
+		netmapEpochKey, netmapInnerRingCandidateFeeKey,
+		netmapMaxObjectSizeKey, netmapWithdrawFeeKey:
+		val, err = strconv.ParseInt(valRaw, 10, 64)
+		if err != nil {
+			err = fmt.Errorf("could not parse %s's value '%s' as int: %w", key, valRaw, err)
+		}
+	case netmapEigenTrustAlphaKey:
+		// just check that it could
+		// be parsed correctly
+		_, err = strconv.ParseFloat(kv[1], 64)
+		if err != nil {
+			err = fmt.Errorf("could not parse %s's value '%s' as float: %w", key, valRaw, err)
+		}
+
+		val = valRaw
+	default:
+		if !force {
+			return "", nil, fmt.Errorf(
+				"'%s' key is not well-known, use '--%s' flag if want to set it anyway",
+				key, forceConfigSet)
+		}
+
+		val = valRaw
+	}
+
+	return
+}

cmd/neofs-adm/internal/modules/morph/root.go

@@ -122,6 +122,18 @@ var (
 		RunE: removeNodesCmd,
 	}
 
+	setConfig = &cobra.Command{
+		Use:                   "set-config key1=val1 [key2=val2 ...]",
+		DisableFlagsInUseLine: true,
+		Short:                 "Add/update global config value in the NeoFS network",
+		PreRun: func(cmd *cobra.Command, _ []string) {
+			_ = viper.BindPFlag(alphabetWalletsFlag, cmd.Flags().Lookup(alphabetWalletsFlag))
+			_ = viper.BindPFlag(endpointFlag, cmd.Flags().Lookup(endpointFlag))
+		},
+		Args: cobra.MinimumNArgs(1),
+		RunE: setConfigCmd,
+	}
+
 	setPolicy = &cobra.Command{
 		Use:                   "set-policy [ExecFeeFactor=<n1>] [StoragePrice=<n2>] [FeePerByte=<n3>]",
 		DisableFlagsInUseLine: true,
@@ -241,6 +253,11 @@ func init() {
 	RootCmd.AddCommand(dumpNetworkConfigCmd)
 	dumpNetworkConfigCmd.Flags().StringP(endpointFlag, "r", "", "N3 RPC node endpoint")
 
+	RootCmd.AddCommand(setConfig)
+	setConfig.Flags().String(alphabetWalletsFlag, "", "path to alphabet wallets dir")
+	setConfig.Flags().StringP(endpointFlag, "r", "", "N3 RPC node endpoint")
+	setConfig.Flags().Bool(forceConfigSet, false, "Force setting not well-known configuration key")
+
 	RootCmd.AddCommand(dumpBalancesCmd)
 	dumpBalancesCmd.Flags().StringP(endpointFlag, "r", "", "N3 RPC node endpoint")
 	dumpBalancesCmd.Flags().BoolP(dumpBalancesStorageFlag, "s", false, "dump balances of storage nodes from the current netmap")