mirror of https://github.com/status-im/consul.git
Merge pull request #2748 from hashicorp/f-operator-rework
Split operator raft command into subcommands
This commit is contained in:
Kyle Havlovitz
GitHub
commit
1eb33e58c9
|
|
@ -1,13 +1,10 @@
|
|||
package command
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"strings"
|
||||
|
||||
"flag"
|
||||
"github.com/hashicorp/consul/api"
|
||||
"github.com/hashicorp/consul/command/base"
|
||||
"github.com/ryanuber/columnize"
|
||||
"github.com/mitchellh/cli"
|
||||
)
|
||||
|
||||
// OperatorCommand is used to provide various low-level tools for Consul
|
||||
|
|
@ -18,7 +15,7 @@ type OperatorCommand struct {
|
|||
|
||||
func (c *OperatorCommand) Help() string {
|
||||
helpText := `
|
||||
Usage: consul operator <subcommand> [action] [options]
|
||||
Usage: consul operator <subcommand> [options]
|
||||
|
||||
Provides cluster-level tools for Consul operators, such as interacting with
|
||||
the Raft subsystem. NOTE: Use this command with extreme caution, as improper
|
||||
|
|
@ -30,139 +27,15 @@ Usage: consul operator <subcommand> [action] [options]
|
|||
|
||||
Run consul operator <subcommand> with no arguments for help on that
|
||||
subcommand.
|
||||
|
||||
Subcommands:
|
||||
|
||||
raft View and modify Consul's Raft configuration.
|
||||
`
|
||||
return strings.TrimSpace(helpText)
|
||||
}
|
||||
|
||||
func (c *OperatorCommand) Run(args []string) int {
|
||||
if len(args) < 1 {
|
||||
c.Ui.Error("A subcommand must be specified")
|
||||
c.Ui.Error("")
|
||||
c.Ui.Error(c.Help())
|
||||
return 1
|
||||
}
|
||||
|
||||
var err error
|
||||
subcommand := args[0]
|
||||
switch subcommand {
|
||||
case "raft":
|
||||
err = c.raft(args[1:])
|
||||
default:
|
||||
err = fmt.Errorf("unknown subcommand %q", subcommand)
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
c.Ui.Error(fmt.Sprintf("Operator %q subcommand failed: %v", subcommand, err))
|
||||
return 1
|
||||
}
|
||||
return 0
|
||||
return cli.RunResultHelp
|
||||
}
|
||||
|
||||
// Synopsis returns a one-line description of this command.
|
||||
func (c *OperatorCommand) Synopsis() string {
|
||||
return "Provides cluster-level tools for Consul operators"
|
||||
}
|
||||
|
||||
const raftHelp = `
|
||||
Operator Raft Subcommand:
|
||||
|
||||
The raft subcommand can be used in two modes:
|
||||
|
||||
consul operator raft -list-peers
|
||||
|
||||
Displays the current Raft peer configuration.
|
||||
|
||||
consul operator raft -remove-peer -address="IP:port"
|
||||
|
||||
Removes Consul server with given -address from the Raft configuration.
|
||||
|
||||
There are rare cases where a peer may be left behind in the Raft quorum even
|
||||
though the server is no longer present and known to the cluster. This
|
||||
command can be used to remove the failed server so that it is no longer
|
||||
affects the Raft quorum. If the server still shows in the output of the
|
||||
"consul members" command, it is preferable to clean up by simply running
|
||||
"consul force-leave" instead of this command.
|
||||
|
||||
`
|
||||
|
||||
// raft handles the raft subcommands.
|
||||
func (c *OperatorCommand) raft(args []string) error {
|
||||
f := c.Command.NewFlagSet(c)
|
||||
|
||||
// Parse verb arguments.
|
||||
var listPeers, removePeer bool
|
||||
f.BoolVar(&listPeers, "list-peers", false,
|
||||
"If this flag is provided, the current Raft peer configuration will be "+
|
||||
"displayed. If the cluster is in an outage state without a leader, you may need "+
|
||||
"to set -stale to 'true' to get the configuration from a non-leader server.")
|
||||
f.BoolVar(&removePeer, "remove-peer", false,
|
||||
"If this flag is provided, the Consul server with the given -address will be "+
|
||||
"removed from the Raft configuration.")
|
||||
|
||||
// Parse other arguments.
|
||||
var address string
|
||||
f.StringVar(&address, "address", "",
|
||||
"The address to remove from the Raft configuration.")
|
||||
|
||||
if err := c.Command.Parse(args); err != nil {
|
||||
if err == flag.ErrHelp {
|
||||
c.Ui.Output("")
|
||||
c.Ui.Output(strings.TrimSpace(raftHelp + c.Command.Help()))
|
||||
return nil
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
// Set up a client.
|
||||
client, err := c.Command.HTTPClient()
|
||||
if err != nil {
|
||||
return fmt.Errorf("error connecting to Consul agent: %s", err)
|
||||
}
|
||||
operator := client.Operator()
|
||||
|
||||
// Dispatch based on the verb argument.
|
||||
if listPeers {
|
||||
// Fetch the current configuration.
|
||||
q := &api.QueryOptions{
|
||||
AllowStale: c.Command.HTTPStale(),
|
||||
}
|
||||
reply, err := operator.RaftGetConfiguration(q)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Format it as a nice table.
|
||||
result := []string{"Node|ID|Address|State|Voter"}
|
||||
for _, s := range reply.Servers {
|
||||
state := "follower"
|
||||
if s.Leader {
|
||||
state = "leader"
|
||||
}
|
||||
result = append(result, fmt.Sprintf("%s|%s|%s|%s|%v",
|
||||
s.Node, s.ID, s.Address, state, s.Voter))
|
||||
}
|
||||
c.Ui.Output(columnize.SimpleFormat(result))
|
||||
} else if removePeer {
|
||||
// TODO (slackpad) Once we expose IDs, add support for removing
|
||||
// by ID, add support for that.
|
||||
if len(address) == 0 {
|
||||
return fmt.Errorf("an address is required for the peer to remove")
|
||||
}
|
||||
|
||||
// Try to kick the peer.
|
||||
if err := operator.RaftRemovePeerByAddress(address, nil); err != nil {
|
||||
return err
|
||||
}
|
||||
c.Ui.Output(fmt.Sprintf("Removed peer with address %q", address))
|
||||
} else {
|
||||
c.Ui.Output(c.Help())
|
||||
c.Ui.Output("")
|
||||
c.Ui.Output(strings.TrimSpace(raftHelp + c.Command.Help()))
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
|
|
|||
|
|
@ -0,0 +1,100 @@
|
|||
package command
|
||||
|
||||
import (
|
||||
"flag"
|
||||
"fmt"
|
||||
"strings"
|
||||
|
||||
"github.com/hashicorp/consul/command/base"
|
||||
)
|
||||
|
||||
type OperatorRaftCommand struct {
|
||||
base.Command
|
||||
}
|
||||
|
||||
func (c *OperatorRaftCommand) Help() string {
|
||||
helpText := `
|
||||
Usage: consul operator raft <subcommand> [options]
|
||||
|
||||
The Raft operator command is used to interact with Consul's Raft subsystem. The
|
||||
command can be used to verify Raft peers or in rare cases to recover quorum by
|
||||
removing invalid peers.
|
||||
|
||||
Subcommands:
|
||||
|
||||
list-peers Display the current Raft peer configuration
|
||||
remove-peer Remove a Consul server from the Raft configuration
|
||||
|
||||
`
|
||||
|
||||
return strings.TrimSpace(helpText)
|
||||
}
|
||||
|
||||
func (c *OperatorRaftCommand) Synopsis() string {
|
||||
return "Provides cluster-level tools for Consul operators"
|
||||
}
|
||||
|
||||
func (c *OperatorRaftCommand) Run(args []string) int {
|
||||
if result := c.raft(args); result != nil {
|
||||
c.Ui.Error(result.Error())
|
||||
return 1
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
// raft handles the raft subcommands.
|
||||
func (c *OperatorRaftCommand) raft(args []string) error {
|
||||
f := c.Command.NewFlagSet(c)
|
||||
|
||||
// Parse verb arguments.
|
||||
var listPeers, removePeer bool
|
||||
f.BoolVar(&listPeers, "list-peers", false,
|
||||
"If this flag is provided, the current Raft peer configuration will be "+
|
||||
"displayed. If the cluster is in an outage state without a leader, you may need "+
|
||||
"to set -stale to 'true' to get the configuration from a non-leader server.")
|
||||
f.BoolVar(&removePeer, "remove-peer", false,
|
||||
"If this flag is provided, the Consul server with the given -address will be "+
|
||||
"removed from the Raft configuration.")
|
||||
|
||||
// Parse other arguments.
|
||||
var address string
|
||||
f.StringVar(&address, "address", "",
|
||||
"The address to remove from the Raft configuration.")
|
||||
|
||||
// Leave these flags for backwards compatibility, but hide them
|
||||
// TODO: remove flags/behavior from this command in Consul 0.9
|
||||
c.Command.HideFlags("list-peers", "remove-peer", "address")
|
||||
|
||||
if err := c.Command.Parse(args); err != nil {
|
||||
if err == flag.ErrHelp {
|
||||
return nil
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
// Set up a client.
|
||||
client, err := c.Command.HTTPClient()
|
||||
if err != nil {
|
||||
return fmt.Errorf("error connecting to Consul agent: %s", err)
|
||||
}
|
||||
operator := client.Operator()
|
||||
|
||||
// Dispatch based on the verb argument.
|
||||
if listPeers {
|
||||
result, err := raftListPeers(operator, c.Command.HTTPStale())
|
||||
if err != nil {
|
||||
c.Ui.Error(fmt.Sprintf("Error getting peers: %v", err))
|
||||
}
|
||||
c.Ui.Output(result)
|
||||
} else if removePeer {
|
||||
if err := raftRemovePeers(address, operator); err != nil {
|
||||
return fmt.Errorf("Error removing peer: %v", err)
|
||||
}
|
||||
c.Ui.Output(fmt.Sprintf("Removed peer with address %q", address))
|
||||
} else {
|
||||
c.Ui.Output(c.Help())
|
||||
return nil
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
|
@ -0,0 +1,81 @@
|
|||
package command
|
||||
|
||||
import (
|
||||
"flag"
|
||||
"fmt"
|
||||
"strings"
|
||||
|
||||
"github.com/hashicorp/consul/api"
|
||||
"github.com/hashicorp/consul/command/base"
|
||||
"github.com/ryanuber/columnize"
|
||||
)
|
||||
|
||||
type OperatorRaftListCommand struct {
|
||||
base.Command
|
||||
}
|
||||
|
||||
func (c *OperatorRaftListCommand) Help() string {
|
||||
helpText := `
|
||||
Usage: consul operator raft list-peers [options]
|
||||
|
||||
Displays the current Raft peer configuration.
|
||||
|
||||
` + c.Command.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.Command.NewFlagSet(c)
|
||||
|
||||
if err := c.Command.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.Command.HTTPClient()
|
||||
if err != nil {
|
||||
c.Ui.Error(fmt.Sprintf("Error initializing client: %s", err))
|
||||
return 1
|
||||
}
|
||||
|
||||
// Fetch the current configuration.
|
||||
result, err := raftListPeers(client.Operator(), c.Command.HTTPStale())
|
||||
if err != nil {
|
||||
c.Ui.Error(fmt.Sprintf("Error getting peers: %v", err))
|
||||
}
|
||||
c.Ui.Output(result)
|
||||
|
||||
return 0
|
||||
}
|
||||
|
||||
func raftListPeers(operator *api.Operator, stale bool) (string, error) {
|
||||
q := &api.QueryOptions{
|
||||
AllowStale: stale,
|
||||
}
|
||||
reply, err := 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"}
|
||||
for _, s := range reply.Servers {
|
||||
state := "follower"
|
||||
if s.Leader {
|
||||
state = "leader"
|
||||
}
|
||||
result = append(result, fmt.Sprintf("%s|%s|%s|%s|%v",
|
||||
s.Node, s.ID, s.Address, state, s.Voter))
|
||||
}
|
||||
|
||||
return columnize.SimpleFormat(result), nil
|
||||
}
|
||||
|
|
@ -0,0 +1,55 @@
|
|||
package command
|
||||
|
||||
import (
|
||||
"strings"
|
||||
"testing"
|
||||
|
||||
"github.com/hashicorp/consul/command/base"
|
||||
"github.com/mitchellh/cli"
|
||||
)
|
||||
|
||||
func TestOperator_Raft_ListPeers_Implements(t *testing.T) {
|
||||
var _ cli.Command = &OperatorRaftListCommand{}
|
||||
}
|
||||
|
||||
func TestOperator_Raft_ListPeers(t *testing.T) {
|
||||
a1 := testAgent(t)
|
||||
defer a1.Shutdown()
|
||||
waitForLeader(t, a1.httpAddr)
|
||||
|
||||
// Test the legacy mode with 'consul operator raft -list-peers'
|
||||
{
|
||||
ui, c := testOperatorRaftCommand(t)
|
||||
args := []string{"-http-addr=" + a1.httpAddr, "-list-peers"}
|
||||
|
||||
code := c.Run(args)
|
||||
if code != 0 {
|
||||
t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())
|
||||
}
|
||||
output := strings.TrimSpace(ui.OutputWriter.String())
|
||||
if !strings.Contains(output, "leader") {
|
||||
t.Fatalf("bad: %s", output)
|
||||
}
|
||||
}
|
||||
|
||||
// Test the list-peers subcommand directly
|
||||
{
|
||||
ui := new(cli.MockUi)
|
||||
c := OperatorRaftListCommand{
|
||||
Command: base.Command{
|
||||
Ui: ui,
|
||||
Flags: base.FlagSetHTTP,
|
||||
},
|
||||
}
|
||||
args := []string{"-http-addr=" + a1.httpAddr}
|
||||
|
||||
code := c.Run(args)
|
||||
if code != 0 {
|
||||
t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())
|
||||
}
|
||||
output := strings.TrimSpace(ui.OutputWriter.String())
|
||||
if !strings.Contains(output, "leader") {
|
||||
t.Fatalf("bad: %s", output)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,83 @@
|
|||
package command
|
||||
|
||||
import (
|
||||
"flag"
|
||||
"fmt"
|
||||
"strings"
|
||||
|
||||
"github.com/hashicorp/consul/api"
|
||||
"github.com/hashicorp/consul/command/base"
|
||||
)
|
||||
|
||||
type OperatorRaftRemoveCommand struct {
|
||||
base.Command
|
||||
}
|
||||
|
||||
func (c *OperatorRaftRemoveCommand) Help() string {
|
||||
helpText := `
|
||||
Usage: consul operator raft remove-peer [options]
|
||||
|
||||
Remove the Consul server with given -address from the Raft configuration.
|
||||
|
||||
There are rare cases where a peer may be left behind in the Raft quorum even
|
||||
though the server is no longer present and known to the cluster. This command
|
||||
can be used to remove the failed server so that it is no longer affects the Raft
|
||||
quorum. If the server still shows in the output of the "consul members" command,
|
||||
it is preferable to clean up by simply running "consul force-leave" instead of
|
||||
this command.
|
||||
|
||||
` + c.Command.Help()
|
||||
|
||||
return strings.TrimSpace(helpText)
|
||||
}
|
||||
|
||||
func (c *OperatorRaftRemoveCommand) Synopsis() string {
|
||||
return "Remove a Consul server from the Raft configuration"
|
||||
}
|
||||
|
||||
func (c *OperatorRaftRemoveCommand) Run(args []string) int {
|
||||
f := c.Command.NewFlagSet(c)
|
||||
|
||||
var address string
|
||||
f.StringVar(&address, "address", "",
|
||||
"The address to remove from the Raft configuration.")
|
||||
|
||||
if err := c.Command.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.Command.HTTPClient()
|
||||
if err != nil {
|
||||
c.Ui.Error(fmt.Sprintf("Error initializing client: %s", err))
|
||||
return 1
|
||||
}
|
||||
|
||||
// Fetch the current configuration.
|
||||
if err := raftRemovePeers(address, client.Operator()); err != nil {
|
||||
c.Ui.Error(fmt.Sprintf("Error removing peer: %v", err))
|
||||
return 1
|
||||
}
|
||||
c.Ui.Output(fmt.Sprintf("Removed peer with address %q", address))
|
||||
|
||||
return 0
|
||||
}
|
||||
|
||||
func raftRemovePeers(address string, operator *api.Operator) error {
|
||||
// TODO (slackpad) Once we expose IDs, add support for removing
|
||||
// by ID, add support for that.
|
||||
if len(address) == 0 {
|
||||
return fmt.Errorf("an address is required for the peer to remove")
|
||||
}
|
||||
|
||||
// Try to kick the peer.
|
||||
if err := operator.RaftRemovePeerByAddress(address, nil); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
|
@ -0,0 +1,59 @@
|
|||
package command
|
||||
|
||||
import (
|
||||
"strings"
|
||||
"testing"
|
||||
|
||||
"github.com/hashicorp/consul/command/base"
|
||||
"github.com/mitchellh/cli"
|
||||
)
|
||||
|
||||
func TestOperator_Raft_RemovePeer_Implements(t *testing.T) {
|
||||
var _ cli.Command = &OperatorRaftRemoveCommand{}
|
||||
}
|
||||
|
||||
func TestOperator_Raft_RemovePeer(t *testing.T) {
|
||||
a1 := testAgent(t)
|
||||
defer a1.Shutdown()
|
||||
waitForLeader(t, a1.httpAddr)
|
||||
|
||||
// Test the legacy mode with 'consul operator raft -remove-peer'
|
||||
{
|
||||
ui, c := testOperatorRaftCommand(t)
|
||||
args := []string{"-http-addr=" + a1.httpAddr, "-remove-peer", "-address=nope"}
|
||||
|
||||
code := c.Run(args)
|
||||
if code != 1 {
|
||||
t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())
|
||||
}
|
||||
|
||||
// If we get this error, it proves we sent the address all they through.
|
||||
output := strings.TrimSpace(ui.ErrorWriter.String())
|
||||
if !strings.Contains(output, "address \"nope\" was not found in the Raft configuration") {
|
||||
t.Fatalf("bad: %s", output)
|
||||
}
|
||||
}
|
||||
|
||||
// Test the remove-peer subcommand directly
|
||||
{
|
||||
ui := new(cli.MockUi)
|
||||
c := OperatorRaftRemoveCommand{
|
||||
Command: base.Command{
|
||||
Ui: ui,
|
||||
Flags: base.FlagSetHTTP,
|
||||
},
|
||||
}
|
||||
args := []string{"-http-addr=" + a1.httpAddr, "-address=nope"}
|
||||
|
||||
code := c.Run(args)
|
||||
if code != 1 {
|
||||
t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())
|
||||
}
|
||||
|
||||
// If we get this error, it proves we sent the address all they through.
|
||||
output := strings.TrimSpace(ui.ErrorWriter.String())
|
||||
if !strings.Contains(output, "address \"nope\" was not found in the Raft configuration") {
|
||||
t.Fatalf("bad: %s", output)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,22 @@
|
|||
package command
|
||||
|
||||
import (
|
||||
"testing"
|
||||
|
||||
"github.com/hashicorp/consul/command/base"
|
||||
"github.com/mitchellh/cli"
|
||||
)
|
||||
|
||||
func testOperatorRaftCommand(t *testing.T) (*cli.MockUi, *OperatorRaftCommand) {
|
||||
ui := new(cli.MockUi)
|
||||
return ui, &OperatorRaftCommand{
|
||||
Command: base.Command{
|
||||
Ui: ui,
|
||||
Flags: base.FlagSetHTTP,
|
||||
},
|
||||
}
|
||||
}
|
||||
|
||||
func TestOperator_Raft_Implements(t *testing.T) {
|
||||
var _ cli.Command = &OperatorRaftCommand{}
|
||||
}
|
||||
|
|
@ -1,61 +1,11 @@
|
|||
package command
|
||||
|
||||
import (
|
||||
"strings"
|
||||
"testing"
|
||||
|
||||
"github.com/hashicorp/consul/command/base"
|
||||
"github.com/mitchellh/cli"
|
||||
)
|
||||
|
||||
func testOperatorCommand(t *testing.T) (*cli.MockUi, *OperatorCommand) {
|
||||
ui := new(cli.MockUi)
|
||||
return ui, &OperatorCommand{
|
||||
Command: base.Command{
|
||||
Ui: ui,
|
||||
Flags: base.FlagSetHTTP,
|
||||
},
|
||||
}
|
||||
}
|
||||
|
||||
func TestOperator_Implements(t *testing.T) {
|
||||
var _ cli.Command = &OperatorCommand{}
|
||||
}
|
||||
|
||||
func TestOperator_Raft_ListPeers(t *testing.T) {
|
||||
a1 := testAgent(t)
|
||||
defer a1.Shutdown()
|
||||
waitForLeader(t, a1.httpAddr)
|
||||
|
||||
ui, c := testOperatorCommand(t)
|
||||
args := []string{"raft", "-http-addr=" + a1.httpAddr, "-list-peers"}
|
||||
|
||||
code := c.Run(args)
|
||||
if code != 0 {
|
||||
t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())
|
||||
}
|
||||
output := strings.TrimSpace(ui.OutputWriter.String())
|
||||
if !strings.Contains(output, "leader") {
|
||||
t.Fatalf("bad: %s", output)
|
||||
}
|
||||
}
|
||||
|
||||
func TestOperator_Raft_RemovePeer(t *testing.T) {
|
||||
a1 := testAgent(t)
|
||||
defer a1.Shutdown()
|
||||
waitForLeader(t, a1.httpAddr)
|
||||
|
||||
ui, c := testOperatorCommand(t)
|
||||
args := []string{"raft", "-http-addr=" + a1.httpAddr, "-remove-peer", "-address=nope"}
|
||||
|
||||
code := c.Run(args)
|
||||
if code != 1 {
|
||||
t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())
|
||||
}
|
||||
|
||||
// If we get this error, it proves we sent the address all they through.
|
||||
output := strings.TrimSpace(ui.ErrorWriter.String())
|
||||
if !strings.Contains(output, "address \"nope\" was not found in the Raft configuration") {
|
||||
t.Fatalf("bad: %s", output)
|
||||
}
|
||||
}
|
||||
|
|
|
|||
27
commands.go
27
commands.go
|
|
@ -206,6 +206,33 @@ func init() {
|
|||
|
||||
"operator": func() (cli.Command, error) {
|
||||
return &command.OperatorCommand{
|
||||
Command: base.Command{
|
||||
Flags: base.FlagSetNone,
|
||||
Ui: ui,
|
||||
},
|
||||
}, nil
|
||||
},
|
||||
|
||||
"operator raft": func() (cli.Command, error) {
|
||||
return &command.OperatorRaftCommand{
|
||||
Command: base.Command{
|
||||
Flags: base.FlagSetHTTP,
|
||||
Ui: ui,
|
||||
},
|
||||
}, nil
|
||||
},
|
||||
|
||||
"operator raft list-peers": func() (cli.Command, error) {
|
||||
return &command.OperatorRaftListCommand{
|
||||
Command: base.Command{
|
||||
Flags: base.FlagSetHTTP,
|
||||
Ui: ui,
|
||||
},
|
||||
}, nil
|
||||
},
|
||||
|
||||
"operator raft remove-peer": func() (cli.Command, error) {
|
||||
return &command.OperatorRaftRemoveCommand{
|
||||
Command: base.Command{
|
||||
Flags: base.FlagSetHTTP,
|
||||
Ui: ui,
|
||||
|
|
|
|||
|
|
@ -28,72 +28,17 @@ endpoint.
|
|||
|
||||
## Usage
|
||||
|
||||
Usage: `consul operator <subcommand> [action] [options]`
|
||||
```text
|
||||
Usage: consul operator <subcommand> [options]
|
||||
|
||||
Run `consul operator <subcommand>` with no arguments for help on that
|
||||
subcommand. The following subcommands are available:
|
||||
# ...
|
||||
|
||||
* `raft` - View and modify Consul's Raft configuration.
|
||||
Subcommands:
|
||||
|
||||
#### API Options
|
||||
|
||||
<%= partial "docs/commands/http_api_options_client" %>
|
||||
<%= partial "docs/commands/http_api_options_server" %>
|
||||
|
||||
## Raft Operations
|
||||
|
||||
The `raft` subcommand is used to view and modify Consul's Raft configuration.
|
||||
Two actions are available, as detailed in this section.
|
||||
|
||||
<a name="raft-list-peers"></a>
|
||||
#### Display Peer Configuration
|
||||
This action displays the current Raft peer configuration.
|
||||
|
||||
Usage: `consul operator raft -list-peers -stale=[true|false]`
|
||||
|
||||
* `-stale` - Optional and defaults to "false" which means the leader provides
|
||||
the result. If the cluster is in an outage state without a leader, you may need
|
||||
to set this to "true" to get the configuration from a non-leader server.
|
||||
|
||||
The output looks like this:
|
||||
|
||||
```
|
||||
Node ID Address State Voter
|
||||
alice 127.0.0.1:8300 127.0.0.1:8300 follower true
|
||||
bob 127.0.0.2:8300 127.0.0.2:8300 leader true
|
||||
carol 127.0.0.3:8300 127.0.0.3:8300 follower true
|
||||
raft Provides cluster-level tools for Consul operators
|
||||
```
|
||||
|
||||
`Node` is the node name of the server, as known to Consul, or "(unknown)" if
|
||||
the node is stale and not known.
|
||||
For more information, examples, and usage about a subcommand, click on the name
|
||||
of the subcommand in the sidebar or one of the links below:
|
||||
|
||||
`ID` is the ID of the server. This is the same as the `Address` in Consul 0.7
|
||||
but may be upgraded to a GUID in a future version of Consul.
|
||||
|
||||
`Address` is the IP:port for the server.
|
||||
|
||||
`State` is either "follower" or "leader" depending on the server's role in the
|
||||
Raft configuration.
|
||||
|
||||
`Voter` is "true" or "false", indicating if the server has a vote in the Raft
|
||||
configuration. Future versions of Consul may add support for non-voting servers.
|
||||
|
||||
<a name="raft-remove-peer"></a>
|
||||
#### Remove a Peer
|
||||
This command removes Consul server with given address from the Raft configuration.
|
||||
|
||||
There are rare cases where a peer may be left behind in the Raft configuration
|
||||
even though the server is no longer present and known to the cluster. This command
|
||||
can be used to remove the failed server so that it is no longer affects the
|
||||
Raft quorum. If the server still shows in the output of the
|
||||
[`consul members`](/docs/commands/members.html) command, it is preferable to
|
||||
clean up by simply running
|
||||
[`consul force-leave`](/docs/commands/force-leave.html)
|
||||
instead of this command.
|
||||
|
||||
Usage: `consul operator raft -remove-peer -address="IP:port"`
|
||||
|
||||
* `-address` - "IP:port" for the server to remove. The port number is usually
|
||||
8300, unless configured otherwise.
|
||||
|
||||
The return code will indicate success or failure.
|
||||
- [raft] (/docs/commands/operator/raft.html)
|
||||
|
|
|
|||
|
|
@ -0,0 +1,81 @@
|
|||
---
|
||||
layout: "docs"
|
||||
page_title: "Commands: Operator Raft"
|
||||
sidebar_current: "docs-commands-operator-raft"
|
||||
description: >
|
||||
The operator raft subcommand is used to view and modify Consul's Raft configuration.
|
||||
---
|
||||
|
||||
# Consul Operator Raft
|
||||
|
||||
Command: `consul operator raft`
|
||||
|
||||
The Raft operator command is used to interact with Consul's Raft subsystem. The
|
||||
command can be used to verify Raft peers or in rare cases to recover quorum by
|
||||
removing invalid peers.
|
||||
|
||||
```text
|
||||
Usage: consul operator raft <subcommand> [options]
|
||||
|
||||
The Raft operator command is used to interact with Consul's Raft subsystem. The
|
||||
command can be used to verify Raft peers or in rare cases to recover quorum by
|
||||
removing invalid peers.
|
||||
|
||||
Subcommands:
|
||||
|
||||
list-peers Display the current Raft peer configuration
|
||||
remove-peer Remove a Consul server from the Raft configuration
|
||||
```
|
||||
|
||||
## list-peers
|
||||
|
||||
This command displays the current Raft peer configuration.
|
||||
|
||||
Usage: `consul operator raft list-peers -stale=[true|false]`
|
||||
|
||||
* `-stale` - Optional and defaults to "false" which means the leader provides
|
||||
the result. If the cluster is in an outage state without a leader, you may need
|
||||
to set this to "true" to get the configuration from a non-leader server.
|
||||
|
||||
The output looks like this:
|
||||
|
||||
```
|
||||
Node ID Address State Voter
|
||||
alice 127.0.0.1:8300 127.0.0.1:8300 follower true
|
||||
bob 127.0.0.2:8300 127.0.0.2:8300 leader true
|
||||
carol 127.0.0.3:8300 127.0.0.3:8300 follower true
|
||||
```
|
||||
|
||||
`Node` is the node name of the server, as known to Consul, or "(unknown)" if
|
||||
the node is stale and not known.
|
||||
|
||||
`ID` is the ID of the server. This is the same as the `Address` in Consul 0.7
|
||||
but may be upgraded to a GUID in a future version of Consul.
|
||||
|
||||
`Address` is the IP:port for the server.
|
||||
|
||||
`State` is either "follower" or "leader" depending on the server's role in the
|
||||
Raft configuration.
|
||||
|
||||
`Voter` is "true" or "false", indicating if the server has a vote in the Raft
|
||||
configuration. Future versions of Consul may add support for non-voting servers.
|
||||
|
||||
## remove-peer
|
||||
|
||||
This command removes the Consul server with given address from the Raft configuration.
|
||||
|
||||
There are rare cases where a peer may be left behind in the Raft configuration
|
||||
even though the server is no longer present and known to the cluster. This command
|
||||
can be used to remove the failed server so that it is no longer affects the
|
||||
Raft quorum. If the server still shows in the output of the
|
||||
[`consul members`](/docs/commands/members.html) command, it is preferable to
|
||||
clean up by simply running
|
||||
[`consul force-leave`](/docs/commands/force-leave.html)
|
||||
instead of this command.
|
||||
|
||||
Usage: `consul operator raft remove-peer -address="IP:port"`
|
||||
|
||||
* `-address` - "IP:port" for the server to remove. The port number is usually
|
||||
8300, unless configured otherwise.
|
||||
|
||||
The return code will indicate success or failure.
|
||||
|
|
@ -15,7 +15,7 @@
|
|||
|
||||
<li<%= sidebar_current("docs-upgrading-compat") %>>
|
||||
<a href="/docs/compatibility.html">Compatibility Promise</a>
|
||||
</li>
|
||||
</li>
|
||||
|
||||
<li<%= sidebar_current("docs-upgrading-specific") %>>
|
||||
<a href="/docs/upgrade-specific.html">Specific Version Details</a>
|
||||
|
|
@ -141,6 +141,11 @@
|
|||
|
||||
<li<%= sidebar_current("docs-commands-operator") %>>
|
||||
<a href="/docs/commands/operator.html">operator</a>
|
||||
<ul class="subnav">
|
||||
<li<%= sidebar_current("docs-commands-operator-raft") %>>
|
||||
<a href="/docs/commands/operator/raft.html">raft</a>
|
||||
</li>
|
||||
</ul>
|
||||
</li>
|
||||
|
||||
<li<%= sidebar_current("docs-commands-reload") %>>
|
||||
|
|
@ -279,7 +284,7 @@
|
|||
|
||||
<li<%= sidebar_current("docs-guides") %>>
|
||||
<a href="/docs/guides/index.html">Guides</a>
|
||||
<ul class="nav">
|
||||
<ul class="nav">
|
||||
<li<%= sidebar_current("docs-guides-atlas") %>>
|
||||
<a href="/docs/guides/atlas.html">Atlas Integration</a>
|
||||
</li>
|
||||
|
|
@ -314,16 +319,16 @@
|
|||
|
||||
<li<%= sidebar_current("docs-guides-outage") %>>
|
||||
<a href="/docs/guides/outage.html">Outage Recovery</a>
|
||||
</li>
|
||||
</li>
|
||||
|
||||
<li<%= sidebar_current("docs-guides-semaphore") %>>
|
||||
<li<%= sidebar_current("docs-guides-semaphore") %>>
|
||||
<a href="/docs/guides/semaphore.html">Semaphore</a>
|
||||
</li>
|
||||
</li>
|
||||
|
||||
<li<%= sidebar_current("docs-guides-performance") %>>
|
||||
<a href="/docs/guides/performance.html">Server Performance</a>
|
||||
</li>
|
||||
</ul>
|
||||
</ul>
|
||||
|
||||
<li<%= sidebar_current("docs-faq") %>>
|
||||
<a href="/docs/faq.html">Frequently Asked Questions</a>
|
||||
|
|
|
|||
Loading…
Reference in New Issue