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node_print_schedule.go
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/
node_print_schedule.go
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package omcmd
import (
"context"
"errors"
"fmt"
"time"
"github.com/opensvc/om3/core/client"
"github.com/opensvc/om3/core/nodeselector"
"github.com/opensvc/om3/core/object"
"github.com/opensvc/om3/core/output"
"github.com/opensvc/om3/core/rawconfig"
"github.com/opensvc/om3/daemon/api"
"github.com/opensvc/om3/util/hostname"
)
type (
CmdNodePrintSchedule struct {
OptsGlobal
NodeSelector string
}
)
func (t *CmdNodePrintSchedule) extract(c *client.T) (api.ScheduleList, error) {
var data api.ScheduleList
data.Kind = "ScheduleList"
var (
items api.ScheduleItems
err error
)
if t.Local {
items, err = t.extractLocal()
} else {
items, err = t.extractFromDaemon(c)
}
data.Items = items
return data, err
}
func (t *CmdNodePrintSchedule) extractLocal() (api.ScheduleItems, error) {
var items api.ScheduleItems
n, err := object.NewNode()
if err != nil {
return items, err
}
for _, e := range n.Schedules() {
item := api.ScheduleItem{
Kind: "ScheduleItem",
Meta: api.InstanceMeta{
Node: e.Node,
Object: e.Path.String(),
},
Data: api.Schedule{
Action: e.Action,
Key: e.Key,
LastRunAt: e.LastRunAt,
LastRunFile: e.LastRunFile,
LastSuccessFile: e.LastSuccessFile,
NextRunAt: e.NextRunAt,
RequireCollector: e.RequireCollector,
RequireProvisioned: e.RequireProvisioned,
Schedule: e.Schedule,
},
}
items = append(items, item)
}
return items, nil
}
func (t *CmdNodePrintSchedule) extractFromDaemon(c *client.T) (api.ScheduleItems, error) {
var l api.ScheduleItems
if t.NodeSelector == "" {
t.NodeSelector = "*"
}
nodenames, err := nodeselector.New(t.NodeSelector, nodeselector.WithClient(c)).Expand()
if err != nil {
return l, err
}
ctx := context.Background()
ctx, cancel := context.WithTimeout(ctx, time.Second*1)
defer cancel()
q := make(chan api.ScheduleItems)
errC := make(chan error)
doneC := make(chan string)
todo := len(nodenames)
var needDoLocal bool
for _, nodename := range nodenames {
go func(nodename string) {
defer func() { doneC <- nodename }()
resp, err := c.GetNodeScheduleWithResponse(context.Background(), nodename)
if err != nil {
if nodename == hostname.Hostname() {
needDoLocal = true
}
errC <- err
return
}
switch resp.StatusCode() {
case 200:
q <- resp.JSON200.Items
case 401:
errC <- fmt.Errorf("%s: %s", nodename, *resp.JSON401)
case 403:
errC <- fmt.Errorf("%s: %s", nodename, *resp.JSON403)
default:
errC <- fmt.Errorf("%s: unexpected statuscode: %s", nodename, resp.Status())
}
}(nodename)
}
var (
errs error
done int
)
for {
select {
case err := <-errC:
errs = errors.Join(errs, err)
case items := <-q:
l = append(l, items...)
case <-doneC:
done++
if done == todo {
goto out
}
case <-ctx.Done():
errs = errors.Join(errs, ctx.Err())
goto out
}
}
out:
if needDoLocal {
items, err := t.extractLocal()
if err != nil {
errs = errors.Join(errs, err)
} else {
l = append(l, items...)
}
}
return l, errs
}
func (t *CmdNodePrintSchedule) Run() error {
c, err := client.New(client.WithURL(t.Server))
if err != nil {
return err
}
data, err := t.extract(c)
output.Renderer{
DefaultOutput: "tab=NODE:meta.node,ACTION:data.action,LAST_RUN_AT:data.last_run_at,NEXT_RUN_AT:data.next_run_at,SCHEDULE:data.schedule",
Output: t.Output,
Color: t.Color,
Data: data,
Colorize: rawconfig.Colorize,
}.Print()
return err
}