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postgres-operator
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Work in progress.

This commit is contained in:
Jan Mußler 2020-12-17 16:36:50 +01:00
parent da044806b7
commit 679a497837
1 changed files with 23 additions and 20 deletions
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43
pkg/cluster/volumes.go
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@ -21,8 +21,15 @@ func (c *Cluster) syncVolumes() error {
c.logger.Debugf("syncing volumes using %q storage resize mode", c.OpConfig.StorageResizeMode)
var err error
// check quantity string once, and not bother with it anymore everywhwere
_, err = resource.ParseQuantity(c.Spec.Volume.Size)
if err != nil {
return fmt.Errorf("could not parse volume size from the manifest: %v", err)
}
if c.OpConfig.StorageResizeMode == "mixed" {
// mixed op uses AWS API to adjust size,throughput,iops and calls pvc chance for file system resize
err = c.syncUnderlyingEBSVolume()
// resize pvc to adjust filesystem size until better K8s support
if err = c.syncVolumeClaims(); err != nil {
@ -52,6 +59,10 @@ func (c *Cluster) syncVolumes() error {
return nil
}
func (c *Cluster) syncUnderlyingEBSVolume() {
}
// syncVolumeClaims reads all persistent volume claims and checks that their size matches the one declared in the statefulset.
func (c *Cluster) syncVolumeClaims() error {
c.setProcessName("syncing volume claims")
@ -75,9 +86,9 @@ func (c *Cluster) syncVolumeClaims() error {
// syncVolumes reads all persistent volumes and checks that their size matches the one declared in the statefulset.
func (c *Cluster) syncEbsVolumes() error {
c.setProcessName("syncing volumes")
c.setProcessName("syncing EBS and Claims volumes")
act, err := c.volumesNeedResizing(c.Spec.Volume)
act, err := c.volumesNeedResizing()
if err != nil {
return fmt.Errorf("could not compare size of the volumes: %v", err)
}
@ -202,6 +213,8 @@ func (c *Cluster) resizeVolumes() error {
c.setProcessName("resizing EBS volumes")
newQuantity, _ := resource.ParseQuantity(c.Spec.Volume.Size)
newSize := quantityToGigabyte(newQuantity)
resizer := c.VolumeResizer
var totalIncompatible int
@ -210,7 +223,7 @@ func (c *Cluster) resizeVolumes() error {
return fmt.Errorf("could not parse volume size: %v", err)
}
pvs, newSize, err := c.listVolumesWithManifestSize(c.Spec.Volume)
pvs, err := c.listPersistentVolumes()
if err != nil {
return fmt.Errorf("could not list persistent volumes: %v", err)
}
@ -291,33 +304,23 @@ func (c *Cluster) volumeClaimsNeedResizing(newVolume acidv1.Volume) (bool, error
return false, nil
}
func (c *Cluster) volumesNeedResizing(newVolume acidv1.Volume) (bool, error) {
vols, manifestSize, err := c.listVolumesWithManifestSize(newVolume)
func (c *Cluster) volumesNeedResizing() (bool, error) {
newQuantity, _ := resource.ParseQuantity(c.Spec.Volume.Size)
newSize := quantityToGigabyte(newQuantity)
vols, err := c.listPersistentVolumes()
if err != nil {
return false, err
}
for _, pv := range vols {
currentSize := quantityToGigabyte(pv.Spec.Capacity[v1.ResourceStorage])
if currentSize != manifestSize {
if currentSize != newSize {
return true, nil
}
}
return false, nil
}
func (c *Cluster) listVolumesWithManifestSize(newVolume acidv1.Volume) ([]*v1.PersistentVolume, int64, error) {
newSize, err := resource.ParseQuantity(newVolume.Size)
if err != nil {
return nil, 0, fmt.Errorf("could not parse volume size from the manifest: %v", err)
}
manifestSize := quantityToGigabyte(newSize)
vols, err := c.listPersistentVolumes()
if err != nil {
return nil, 0, fmt.Errorf("could not list persistent volumes: %v", err)
}
return vols, manifestSize, nil
}
// getPodNameFromPersistentVolume returns a pod name that it extracts from the volume claim ref.
func getPodNameFromPersistentVolume(pv *v1.PersistentVolume) *spec.NamespacedName {
namespace := pv.Spec.ClaimRef.Namespace
@ -335,7 +338,7 @@ func (c *Cluster) executeEBSMigration() error {
}
c.logger.Infof("starting EBS gp2 to gp3 migration")
pvs, _, err := c.listVolumesWithManifestSize(c.Spec.Volume)
pvs, err := c.listPersistentVolumes()
if err != nil {
return fmt.Errorf("could not list persistent volumes: %v", err)
}