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manager.go
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manager.go
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package poll
import (
"context"
"sync"
"time"
"github.com/alwinius/bow/provider"
log "github.com/sirupsen/logrus"
)
// DefaultManager - default manager is responsible for scanning deployments and identifying
// deployments that have market
type DefaultManager struct {
providers provider.Providers
// repository watcher
watcher Watcher
mu *sync.Mutex
// scanTick - scan interval in seconds, defaults to 60 seconds
scanTick int
// root context
ctx context.Context
}
// NewPollManager - new default poller
func NewPollManager(providers provider.Providers, watcher Watcher) *DefaultManager {
return &DefaultManager{
providers: providers,
watcher: watcher,
mu: &sync.Mutex{},
scanTick: 3,
}
}
// Start - start scanning deployment for changes
func (s *DefaultManager) Start(ctx context.Context) error {
// setting root context
s.ctx = ctx
log.Info("trigger.poll.manager: polling trigger configured")
// initial scan
err := s.scan(ctx)
if err != nil {
log.WithFields(log.Fields{
"error": err,
}).Error("trigger.poll.manager: scan failed")
}
ticker := time.NewTicker(time.Duration(s.scanTick) * time.Second)
defer ticker.Stop()
for {
select {
case <-ctx.Done():
return nil
case <-ticker.C:
err := s.scan(ctx)
if err != nil {
log.WithFields(log.Fields{
"error": err,
}).Error("trigger.poll.manager: kubernetes scan failed")
}
}
}
}
func (s *DefaultManager) scan(ctx context.Context) error {
trackedImages, err := s.providers.TrackedImages()
if err != nil {
return err
}
err = s.watcher.Watch(trackedImages...)
if err != nil {
log.WithFields(log.Fields{
"error": err,
}).Error("trigger.poll.manager: got error(-s) while watching images")
}
return nil
}