/
cleaner.go
109 lines (92 loc) · 3.32 KB
/
cleaner.go
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package api
import (
"math/rand"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/cloudfront"
log "github.com/sirupsen/logrus"
)
// cleanerInterval generates the cleaner interval from the baseInterval and a max splay
func cleanerInterval(baseInterval, maxSplay string) (*time.Duration, error) {
base, err := time.ParseDuration(baseInterval)
if err != nil {
return nil, err
}
log.Debugf("cleaner: parsed base interval (%s) of %f seconds", baseInterval, base.Seconds())
maxs, err := time.ParseDuration(maxSplay)
if err != nil {
return nil, err
}
log.Debugf("cleaner: parsed max splay interval (%s) of %f seconds", maxSplay, maxs.Seconds())
r := rand.Int63n(int64(maxs))
interval := base + time.Duration(r)
log.Infof("cleaner: starting cleaner with interval of %fs", interval.Seconds())
return &interval, nil
}
// run starts the cleaner and listens for a shutdown call.
func (c *cleaner) run() {
log.SetLevel(log.DebugLevel)
ticker := time.NewTicker(c.interval)
go func() {
// Loop that runs forever
for {
select {
case <-ticker.C:
err := c.action()
if err != nil {
log.Errorf("cleaner: error executing cleaner: %s", err)
}
case <-c.context.Done():
log.Debug("cleaner: shutting down cleaner timer")
ticker.Stop()
return
}
log.Debug("cleaner: starting cleaner loop")
}
}()
log.Println("cleaner: Started")
}
// Action defines what the cleaner does...
// 1. get a list of cloudfront distributions, that are disabled but deployed
// 2. for any found distributions, check if the route53 resource record exists, bucket exists?
// 3. delete if orphaned
func (c *cleaner) action() error {
log.Debugf("cleaner: starting cleanup action for account %s", c.account)
distributions, err := c.cloudFrontService.ListDistributionsWithFilter(c.context, func(dist *cloudfront.DistributionSummary) bool {
if aws.StringValue(dist.Status) == "Deployed" && !aws.BoolValue(dist.Enabled) {
log.Debugf("cleaner: distribution %s (%s) is deployed but disabled", aws.StringValue(dist.DomainName), aws.StringValue(dist.Comment))
tags, err := c.cloudFrontService.ListTags(c.context, aws.StringValue(dist.ARN))
if err != nil {
log.Errorf("cleaner: failed to list tags for resource %s: %s", aws.StringValue(dist.ARN), err)
return false
}
for _, t := range tags {
if aws.StringValue(t.Key) == "spinup:org" && aws.StringValue(t.Value) == Org {
log.Debugf("cleaner: distribution %s (%s) is part of our org (%s)", aws.StringValue(dist.DomainName), aws.StringValue(dist.Comment), Org)
return true
}
}
log.Debugf("cleaner: distribution %s (%s) is NOT part of our org (%s)", aws.StringValue(dist.DomainName), aws.StringValue(dist.Comment), Org)
}
return false
})
if err != nil {
log.Error(err)
return err
}
for _, dist := range distributions {
exists, err := c.s3Service.BucketExists(c.context, aws.StringValue(dist.DefaultCacheBehavior.TargetOriginId))
if err != nil {
return err
}
if !exists {
id := aws.StringValue(dist.Id)
origin := aws.StringValue(dist.DefaultCacheBehavior.TargetOriginId)
log.Infof("cleaner: cloudfront distribution (%s) is deployed, disabled. bucket %s doesn't exist. deleting.", id, origin)
if err := c.cloudFrontService.DeleteDistribution(c.context, id); err != nil {
return err
}
}
}
return nil
}