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Do rolling update after creating of a statefulset if pods were present. (#110) 

Make sure we always re-create pods if we had to create the statefulset, even if the pods from the old statefulset were already there.
This commit is contained in:
Oleksii Kliukin 2017-05-03 17:29:56 +02:00 committed by Murat Kabilov
parent 49cb395aed
commit 9f9a89185f
1 changed files with 32 additions and 15 deletions
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21
pkg/cluster/sync.go
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@ -96,8 +96,18 @@ func (c *Cluster) syncEndpoint() error {
func (c *Cluster) syncStatefulSet() error {
cSpec := c.Spec
var rollUpdate bool
if c.Statefulset == nil {
c.logger.Infof("Can't find the cluster's StatefulSet")
pods, err := c.listPods()
if err != nil {
return fmt.Errorf("Can't list pods of the StatefulSet: %s", err)
}
if len(pods) > 0 {
c.logger.Infof("Found pods without the statefulset: trigger rolling update")
rollUpdate = true
}
ss, err := c.createStatefulSet()
if err != nil {
return fmt.Errorf("Can't create missing StatefulSet: %s", err)
@ -107,11 +117,17 @@ func (c *Cluster) syncStatefulSet() error {
return fmt.Errorf("Cluster is not ready: %s", err)
}
c.logger.Infof("Created missing StatefulSet '%s'", util.NameFromMeta(ss.ObjectMeta))
if !rollUpdate {
return nil
}
}
if !rollUpdate {
var (
match bool
reason string
)
desiredSS := c.genStatefulSet(cSpec)
match, rollUpdate, reason := c.compareStatefulSetWith(desiredSS)
match, rollUpdate, reason = c.compareStatefulSetWith(desiredSS)
if match {
return nil
}
@ -125,6 +141,7 @@ func (c *Cluster) syncStatefulSet() error {
c.logger.Debugln("No rolling update is needed")
return nil
}
}
c.logger.Debugln("Performing rolling update")
if err := c.recreatePods(); err != nil {
return fmt.Errorf("Can't recreate Pods: %s", err)