australis/cmd/monitor.go
2019-03-25 17:36:24 -07:00

71 lines
2.5 KiB
Go

/**
* 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 cmd
import (
"strings"
"time"
"github.com/paypal/gorealis/v2/gen-go/apache/aurora"
"github.com/spf13/cobra"
)
func init() {
rootCmd.AddCommand(monitorCmd)
monitorCmd.AddCommand(monitorHostCmd.cmd)
monitorHostCmd.cmd.Run = monitorHost
monitorHostCmd.cmd.Flags().DurationVar(&monitorHostCmd.monitorInterval, "interval", time.Second*5, "Interval at which to poll scheduler.")
monitorHostCmd.cmd.Flags().DurationVar(&monitorHostCmd.monitorTimeout, "timeout", time.Minute*10, "Time after which the monitor will stop polling and throw an error.")
monitorHostCmd.cmd.Flags().StringSliceVar(&monitorHostCmd.statusList, "statuses", []string{aurora.MaintenanceMode_DRAINED.String()}, "List of acceptable statuses for a host to be in. (case-insensitive) [NONE, SCHEDULED, DRAINED, DRAINING]")
}
var monitorCmd = &cobra.Command{
Use: "monitor",
Short: "Watch for a specific state change",
}
var monitorHostCmd = MonitorCmdConfig{
cmd: &cobra.Command{
Use: "hosts",
Short: "Watch a host maintenance status until it enters one of the desired statuses.",
Long: `Provide a list of hosts to monitor for desired statuses. Statuses may be passed using the --statuses
flag with a list of comma separated statuses. Statuses include [NONE, SCHEDULED, DRAINED, DRAINING]`,
},
statusList: make([]string, 0),
}
func monitorHost(cmd *cobra.Command, args []string) {
maintenanceModes := make([]aurora.MaintenanceMode, 0)
for _, status := range monitorHostCmd.statusList {
mode, err := aurora.MaintenanceModeFromString(strings.ToUpper(status))
if err != nil {
log.Fatal(err)
}
maintenanceModes = append(maintenanceModes, mode)
}
log.Infof("Monitoring for %v at %v intervals", monitorHostCmd.monitorTimeout, monitorHostCmd.monitorInterval)
hostResult, err := client.HostMaintenanceMonitor(args, maintenanceModes, monitorHostCmd.monitorInterval, monitorHostCmd.monitorTimeout)
maintenanceMonitorPrint(hostResult, maintenanceModes)
if err != nil {
log.Fatal(err)
}
}