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health.go
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health.go
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package cluster
import (
"fmt"
"io"
"github.com/coreos/etcd/etcdserver/etcdserverpb"
"github.com/sensu/sensu-go/cli"
"github.com/sensu/sensu-go/cli/commands/helpers"
"github.com/sensu/sensu-go/cli/elements/table"
"github.com/sensu/sensu-go/types"
"github.com/spf13/cobra"
)
// HealthCommand gets the Sensu health status of a cluster
func HealthCommand(cli *cli.SensuCli) *cobra.Command {
cmd := &cobra.Command{
Use: "health",
Short: "get sensu health status",
SilenceUsage: false,
RunE: func(cmd *cobra.Command, args []string) error {
result, err := cli.Client.Health()
if err != nil {
return err
}
err = helpers.PrintTitle(helpers.GetChangedStringValueFlag("format", cmd.Flags()), cli.Config.Format(), fmt.Sprintf("Etcd Cluster ID: %x", result.Header.ClusterId), cmd.OutOrStdout())
if err != nil {
return err
}
clusterHealth := result.ClusterHealth
alarms := result.Alarms
err = helpers.Print(cmd, cli.Config.Format(), printHealthToTable, nil, clusterHealth)
if err != nil {
return err
}
if alarms != nil {
err = helpers.Print(cmd, cli.Config.Format(), printAlarmsToTable, nil, alarms)
if err != nil {
return err
}
}
return nil
},
}
helpers.AddFormatFlag(cmd.Flags())
return cmd
}
func printHealthToTable(result interface{}, w io.Writer) {
table := table.New([]*table.Column{
{
Title: "ID",
ColumnStyle: table.PrimaryTextStyle,
CellTransformer: func(data interface{}) string {
clusterHealth, ok := data.(*types.ClusterHealth)
if !ok {
return cli.TypeError
}
return fmt.Sprintf("%x", clusterHealth.MemberID)
},
},
{
Title: "Name",
ColumnStyle: table.PrimaryTextStyle,
CellTransformer: func(data interface{}) string {
clusterHealth, ok := data.(*types.ClusterHealth)
if !ok {
return cli.TypeError
}
return clusterHealth.Name
},
},
{
Title: "Error",
ColumnStyle: table.PrimaryTextStyle,
CellTransformer: func(data interface{}) string {
clusterHealth, ok := data.(*types.ClusterHealth)
if !ok {
return cli.TypeError
}
return fmt.Sprintf("%v", clusterHealth.Err)
},
},
{
Title: "Healthy",
ColumnStyle: table.PrimaryTextStyle,
CellTransformer: func(data interface{}) string {
clusterHealth, ok := data.(*types.ClusterHealth)
if !ok {
return cli.TypeError
}
return fmt.Sprintf("%t", clusterHealth.Healthy)
},
},
})
table.Render(w, result)
}
func printAlarmsToTable(result interface{}, w io.Writer) {
table := table.New([]*table.Column{
{
Title: "ID",
ColumnStyle: table.PrimaryTextStyle,
CellTransformer: func(data interface{}) string {
alarm, ok := data.(*etcdserverpb.AlarmMember)
if !ok {
return cli.TypeError
}
return fmt.Sprintf("%x", alarm.GetMemberID())
},
},
{
Title: "Alarm Type",
ColumnStyle: table.PrimaryTextStyle,
CellTransformer: func(data interface{}) string {
alarm, ok := data.(*etcdserverpb.AlarmMember)
if !ok {
return cli.TypeError
}
return alarm.Alarm.String()
},
},
})
table.Render(w, result)
}