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package shell
import (
"context"
"flag"
"fmt"
"github.com/seaweedfs/seaweedfs/weed/pb/master_pb"
"io"
)
func init() {
Commands = append(Commands, &commandRaftServerAdd{})
}
type commandRaftServerAdd struct {
}
func (c *commandRaftServerAdd) Name() string {
return "cluster.raft.add"
}
func (c *commandRaftServerAdd) Help() string {
return `add a server to the raft cluster
Example:
cluster.raft.add -id <server_name> -address <server_host:port> -voter
`
}
func (c *commandRaftServerAdd) HasTag(CommandTag) bool {
return false
}
func (c *commandRaftServerAdd) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
raftServerAddCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
serverId := raftServerAddCommand.String("id", "", "server id")
serverAddress := raftServerAddCommand.String("address", "", "server grpc address")
serverVoter := raftServerAddCommand.Bool("voter", true, "assign it a vote")
if err = raftServerAddCommand.Parse(args); err != nil {
return nil
}
if *serverId == "" || *serverAddress == "" {
return fmt.Errorf("empty server id or address")
}
err = commandEnv.MasterClient.WithClient(false, func(client master_pb.SeaweedClient) error {
_, err := client.RaftAddServer(context.Background(), &master_pb.RaftAddServerRequest{
Id: *serverId,
Address: *serverAddress,
Voter: *serverVoter,
})
if err != nil {
return fmt.Errorf("raft add server: %w", err)
}
println("added server", *serverId)
return nil
})
return err
}
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