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scheduler.go
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scheduler.go
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/*
Copyright 2017 WALLIX
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 commands
import (
"bytes"
"errors"
"fmt"
"github.com/spf13/cobra"
"github.com/wallix/awless-scheduler/client"
"github.com/wallix/awless-scheduler/model"
"github.com/wallix/awless/config"
)
var (
listSchedulerTasksFlag bool
listSchedulerFailuresFlag bool
)
func init() {
RootCmd.AddCommand(schedulerCmd)
schedulerCmd.Flags().BoolVar(&listSchedulerTasksFlag, "list-tasks", false, "List scheduler tasks")
schedulerCmd.Flags().BoolVar(&listSchedulerFailuresFlag, "list-failures", false, "List scheduler failures")
}
var schedulerCmd = &cobra.Command{
Use: "scheduler",
PersistentPreRun: applyHooks(initAwlessEnvHook, initLoggerHook, firstInstallDoneHook),
PersistentPostRun: applyHooks(verifyNewVersionHook, onVersionUpgrade),
Hidden: true,
Short: "Accessing the scheduler API (when installed). To schedule templates runs/reverts use `awless run --schedule`",
Run: func(cmd *cobra.Command, args []string) {
if config.GetSchedulerURL() == "" {
exitOn(errors.New("no scheduler URL in configuration. Set it with `awless config set scheduler.url`"))
}
cli, err := client.New(config.GetSchedulerURL())
exitOn(err)
if listSchedulerTasksFlag {
tasks, err := cli.ListTasks()
exitOn(err)
printTasks(tasks)
return
}
if listSchedulerFailuresFlag {
tasks, err := cli.ListFailures()
exitOn(err)
printTasks(tasks)
return
}
info := cli.ServiceInfo()
fmt.Printf("Scheduler up!\nAddress: '%s'\nTickerFrequency: %s\nUptime: %s\n", info.ServiceAddr, info.TickerFrequency, info.Uptime)
},
}
func printTasks(tasks []*model.Task) {
for _, t := range tasks {
var buf bytes.Buffer
buf.WriteString(fmt.Sprintf("Region: %s", t.Region))
buf.WriteString(fmt.Sprintf(", RunAt: %s", t.RunAt))
if !t.RevertAt.IsZero() {
buf.WriteString(fmt.Sprintf(", RevertAt: %s", t.RevertAt))
}
buf.WriteString(fmt.Sprintf("\nContent: %s\n", t.Content))
fmt.Println(buf.String())
}
}