/
completed.go
127 lines (105 loc) · 2.8 KB
/
completed.go
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package cleaner
import (
"context"
"fmt"
"strings"
"time"
"github.com/spirt-t/lg-operator/internal/config"
"github.com/spirt-t/lg-operator/internal/k8s"
"github.com/spirt-t/lg-operator/internal/model"
"go.uber.org/multierr"
"go.uber.org/zap"
coreV1 "k8s.io/api/core/v1"
)
const (
completedLGCleaningEnabledKey = "cleaning.completed.enabled"
completedLGCleaningIntervalKey = "cleaning.completed.interval"
)
var (
terminalStatuses = []coreV1.PodPhase{
coreV1.PodFailed,
coreV1.PodSucceeded,
}
)
// CompletedLGCleaner - delete completed generators at interval specified in the config.
type CompletedLGCleaner struct {
config config.Manager
k8s k8s.Manager
logger *zap.Logger
}
// NewCompletedLGCleaner constructor for RegularCleaner.
func NewCompletedLGCleaner(config config.Manager, k8s k8s.Manager, logger *zap.Logger) *CompletedLGCleaner {
return &CompletedLGCleaner{
config: config,
k8s: k8s,
logger: logger,
}
}
// Run - clean completed generators regular.
func (rc *CompletedLGCleaner) Run(ctx context.Context) error {
for {
interval, err := rc.interval()
if err != nil {
return err
}
if rc.enabled() {
if err = rc.regularCleaning(ctx); err != nil {
rc.logger.Error("failed to clean completed generators", zap.Error(err))
}
}
select {
case <-ctx.Done():
return ctx.Err()
case <-time.After(interval):
}
}
}
func (rc *CompletedLGCleaner) enabled() bool {
var enabled bool
_ = rc.config.UnmarshalKey(completedLGCleaningEnabledKey, &enabled)
return enabled
}
func (rc *CompletedLGCleaner) interval() (time.Duration, error) {
var intervalStr string
if err := rc.config.UnmarshalKey(completedLGCleaningIntervalKey, &intervalStr); err != nil {
return 0, fmt.Errorf("failed to define interval: %w", err)
}
return time.ParseDuration(intervalStr)
}
func (rc *CompletedLGCleaner) regularCleaning(ctx context.Context) error {
var namesToDelete []string
rc.logger.Info("Start cleaning completed generators")
defer func() {
rc.logger.Info("Deleted completed generators", zap.String("generators", strings.Join(namesToDelete, ",")))
}()
generators, err := rc.k8s.List(ctx)
if err != nil {
return err
}
namesToDelete = rc.namesToDelete(generators)
if len(namesToDelete) == 0 {
return nil
}
ch := make(chan error)
for _, name := range namesToDelete {
go func(name string) {
ch <- rc.k8s.Delete(ctx, name)
}(name)
}
for i := 0; i < len(namesToDelete); i++ {
err = multierr.Append(err, <-ch)
}
return err
}
func (rc *CompletedLGCleaner) namesToDelete(list []model.LoadGenerator) []string {
var namesToDelete []string
for _, generator := range list {
for _, terminalStatus := range terminalStatuses {
if terminalStatus == generator.Status {
namesToDelete = append(namesToDelete, generator.Name)
break
}
}
}
return namesToDelete
}