frostfs-node/cmd/neofs-cli/modules/container/nodes.go

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package container
import (
"crypto/sha256"
internalclient "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/client"
"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/common"
"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/commonflags"
"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/key"
containerAPI "github.com/nspcc-dev/neofs-sdk-go/container"
cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
"github.com/nspcc-dev/neofs-sdk-go/netmap"
"github.com/spf13/cobra"
)
var short bool
var containerNodesCmd = &cobra.Command{
Use: "nodes",
Short: "Show nodes for container",
Long: "Show nodes taking part in a container at the current epoch.",
Run: func(cmd *cobra.Command, args []string) {
var cnr, pkey = getContainer(cmd)
if pkey == nil {
pkey = key.GetOrGenerate(cmd)
}
cli := internalclient.GetSDKClientByFlag(cmd, pkey, commonflags.RPC)
var prm internalclient.NetMapSnapshotPrm
prm.SetClient(cli)
resmap, err := internalclient.NetMapSnapshot(prm)
common.ExitOnErr(cmd, "unable to get netmap snapshot", err)
var id cid.ID
containerAPI.CalculateID(&id, cnr)
binCnr := make([]byte, sha256.Size)
id.Encode(binCnr)
var cnrNodes [][]netmap.NodeInfo
cnrNodes, err = resmap.NetMap().ContainerNodes(cnr.PlacementPolicy(), binCnr)
common.ExitOnErr(cmd, "could not build container nodes for given container: %w", err)
for i := range cnrNodes {
cmd.Printf("Rep %d\n", i+1)
for j := range cnrNodes[i] {
common.PrettyPrintNodeInfo(cmd, cnrNodes[i][j], j, "\t", short)
}
}
},
}
func initContainerNodesCmd() {
commonflags.Init(containerNodesCmd)
flags := containerNodesCmd.Flags()
flags.StringVar(&containerID, cidFlag, "", cidFlagUsage)
flags.StringVar(&containerPathFrom, fromFlag, "", fromFlagUsage)
flags.BoolVar(&short, "short", false, "Shortens output of node info")
}