mirror of https://github.com/hashicorp/consul
88 lines
1.8 KiB
Go
88 lines
1.8 KiB
Go
package command
|
|
|
|
import (
|
|
"flag"
|
|
"fmt"
|
|
"strings"
|
|
|
|
"github.com/hashicorp/consul/api"
|
|
"github.com/ryanuber/columnize"
|
|
)
|
|
|
|
type OperatorRaftListCommand struct {
|
|
BaseCommand
|
|
}
|
|
|
|
func (c *OperatorRaftListCommand) Help() string {
|
|
helpText := `
|
|
Usage: consul operator raft list-peers [options]
|
|
|
|
Displays the current Raft peer configuration.
|
|
|
|
` + c.BaseCommand.Help()
|
|
|
|
return strings.TrimSpace(helpText)
|
|
}
|
|
|
|
func (c *OperatorRaftListCommand) Synopsis() string {
|
|
return "Display the current Raft peer configuration"
|
|
}
|
|
|
|
func (c *OperatorRaftListCommand) Run(args []string) int {
|
|
c.BaseCommand.NewFlagSet(c)
|
|
|
|
if err := c.BaseCommand.Parse(args); err != nil {
|
|
if err == flag.ErrHelp {
|
|
return 0
|
|
}
|
|
c.UI.Error(fmt.Sprintf("Failed to parse args: %v", err))
|
|
return 1
|
|
}
|
|
|
|
// Set up a client.
|
|
client, err := c.BaseCommand.HTTPClient()
|
|
if err != nil {
|
|
c.UI.Error(fmt.Sprintf("Error initializing client: %s", err))
|
|
return 1
|
|
}
|
|
|
|
// Fetch the current configuration.
|
|
result, err := raftListPeers(client, c.BaseCommand.HTTPStale())
|
|
if err != nil {
|
|
c.UI.Error(fmt.Sprintf("Error getting peers: %v", err))
|
|
return 1
|
|
}
|
|
|
|
c.UI.Output(result)
|
|
return 0
|
|
}
|
|
|
|
func raftListPeers(client *api.Client, stale bool) (string, error) {
|
|
|
|
q := &api.QueryOptions{
|
|
AllowStale: stale,
|
|
}
|
|
reply, err := client.Operator().RaftGetConfiguration(q)
|
|
if err != nil {
|
|
return "", fmt.Errorf("Failed to retrieve raft configuration: %v", err)
|
|
}
|
|
|
|
// Format it as a nice table.
|
|
result := []string{"Node|ID|Address|State|Voter|RaftProtocol"}
|
|
for _, s := range reply.Servers {
|
|
raftProtocol := s.ProtocolVersion
|
|
|
|
if raftProtocol == "" {
|
|
raftProtocol = "<=1"
|
|
}
|
|
state := "follower"
|
|
if s.Leader {
|
|
state = "leader"
|
|
}
|
|
result = append(result, fmt.Sprintf("%s|%s|%s|%s|%v|%s",
|
|
s.Node, s.ID, s.Address, state, s.Voter, raftProtocol))
|
|
}
|
|
|
|
return columnize.SimpleFormat(result), nil
|
|
}
|