etcdctl: alarm command

etcdctl/ctlv3/command/alarm_command.go

@@ -0,0 +1,81 @@
+// Copyright 2016 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package command
+
+import (
+	"fmt"
+
+	v3 "github.com/coreos/etcd/clientv3"
+	"github.com/spf13/cobra"
+)
+
+// NewAlarmCommand returns the cobra command for "alarm".
+func NewAlarmCommand() *cobra.Command {
+	ac := &cobra.Command{
+		Use:   "alarm <subcommand>",
+		Short: "alarm related command",
+	}
+
+	ac.AddCommand(NewAlarmDisarmCommand())
+	ac.AddCommand(NewAlarmListCommand())
+
+	return ac
+}
+
+func NewAlarmDisarmCommand() *cobra.Command {
+	cmd := cobra.Command{
+		Use:   "disarm",
+		Short: "disarm all alarms",
+		Run:   alarmDisarmCommandFunc,
+	}
+	return &cmd
+}
+
+// alarmDisarmCommandFunc executes the "alarm disarm" command.
+func alarmDisarmCommandFunc(cmd *cobra.Command, args []string) {
+	if len(args) != 0 {
+		ExitWithError(ExitBadArgs, fmt.Errorf("alarm disarm command accepts no arguments"))
+	}
+	ctx, cancel := commandCtx(cmd)
+	resp, err := mustClientFromCmd(cmd).AlarmDisarm(ctx, &v3.AlarmMember{})
+	cancel()
+	if err != nil {
+		ExitWithError(ExitError, err)
+	}
+	display.Alarm(*resp)
+}
+
+func NewAlarmListCommand() *cobra.Command {
+	cmd := cobra.Command{
+		Use:   "list",
+		Short: "list all alarms",
+		Run:   alarmListCommandFunc,
+	}
+	return &cmd
+}
+
+// alarmListCommandFunc executes the "alarm list" command.
+func alarmListCommandFunc(cmd *cobra.Command, args []string) {
+	if len(args) != 0 {
+		ExitWithError(ExitBadArgs, fmt.Errorf("alarm disarm command accepts no arguments"))
+	}
+	ctx, cancel := commandCtx(cmd)
+	resp, err := mustClientFromCmd(cmd).AlarmList(ctx)
+	cancel()
+	if err != nil {
+		ExitWithError(ExitError, err)
+	}
+	display.Alarm(*resp)
+}

etcdctl/ctlv3/command/printer.go

@@ -35,6 +35,8 @@ type printer interface {
 	Watch(v3.WatchResponse)
 
 	MemberList(v3.MemberListResponse)
+
+	Alarm(v3.AlarmResponse)
 }
 
 func NewPrinter(printerType string, isHex bool) printer {
@@ -96,6 +98,12 @@ func (s *simplePrinter) Watch(resp v3.WatchResponse) {
 	}
 }
 
+func (s *simplePrinter) Alarm(resp v3.AlarmResponse) {
+	for _, e := range resp.Alarms {
+		fmt.Printf("%+v\n", e)
+	}
+}
+
 func (s *simplePrinter) MemberList(resp v3.MemberListResponse) {
 	table := tablewriter.NewWriter(os.Stdout)
 	table.SetHeader([]string{"ID", "Status", "Name", "Peer Addrs", "Client Addrs", "Is Leader"})
@@ -130,6 +138,7 @@ func (p *jsonPrinter) Get(r v3.GetResponse) {
 func (p *jsonPrinter) Put(r v3.PutResponse)               { printJSON(r) }
 func (p *jsonPrinter) Txn(r v3.TxnResponse)               { printJSON(r) }
 func (p *jsonPrinter) Watch(r v3.WatchResponse)           { printJSON(r) }
+func (p *jsonPrinter) Alarm(r v3.AlarmResponse)           { printJSON(r) }
 func (p *jsonPrinter) MemberList(r v3.MemberListResponse) { printJSON(r) }
 
 func printJSON(v interface{}) {
@@ -169,6 +178,10 @@ func (p *pbPrinter) Watch(r v3.WatchResponse) {
 	}
 }
 
+func (p *pbPrinter) Alarm(r v3.AlarmResponse) {
+	printPB((*pb.AlarmResponse)(&r))
+}
+
 func (pb *pbPrinter) MemberList(r v3.MemberListResponse) {
 	ExitWithError(ExitBadFeature, errors.New("only support simple or json as output format"))
 }

etcdctl/ctlv3/ctl.go

@@ -66,6 +66,7 @@ func init() {
 		command.NewDelCommand(),
 		command.NewTxnCommand(),
 		command.NewCompactionCommand(),
+		command.NewAlarmCommand(),
 		command.NewDefragCommand(),
 		command.NewWatchCommand(),
 		command.NewVersionCommand(),