Failed to upgrade the helm chart

[RobertIndie]

Apache StreamPipes version

dev (current development state)

Affected StreamPipes components

Backend, Connect, Processing Elements, UI

What happened?

When running helm upgrade streampipes ./ to upgrade the helm chart, it will throw errors:

Error: UPGRADE FAILED: cannot patch "backend-pvc" with kind PersistentVolumeClaim: PersistentVolumeClaim "backend-pvc" is invalid: spec: Forbidden: spec is immutable after creation except resources.requests for bound claims
  core.PersistentVolumeClaimSpec{
  	... // 2 identical fields
  	Resources:        {Requests: {s"storage": {i: {...}, s: "50Mi", Format: "BinarySI"}}},
  	VolumeName:       "pvc-a85d92d5-ab2f-4500-9d22-326629e3365b",
- 	StorageClassName: &"hostpath",
+ 	StorageClassName: nil,
  	VolumeMode:       &"Filesystem",
  	DataSource:       nil,
  	DataSourceRef:    nil,
  }
 && cannot patch "consul-pvc" with kind PersistentVolumeClaim: PersistentVolumeClaim "consul-pvc" is invalid: spec: Forbidden: spec is immutable after creation except resources.requests for bound claims
  core.PersistentVolumeClaimSpec{
  	... // 2 identical fields
  	Resources:        {Requests: {s"storage": {i: {...}, s: "20M", Format: "DecimalSI"}}},
  	VolumeName:       "pvc-89730b87-f414-48a9-b842-58a677f2ddb6",
- 	StorageClassName: &"hostpath",
+ 	StorageClassName: nil,
  	VolumeMode:       &"Filesystem",
  	DataSource:       nil,
  	DataSourceRef:    nil,
  }
 && cannot patch "couchdb-pvc" with kind PersistentVolumeClaim: PersistentVolumeClaim "couchdb-pvc" is invalid: spec: Forbidden: spec is immutable after creation except resources.requests for bound claims
  core.PersistentVolumeClaimSpec{
  	... // 2 identical fields
  	Resources:        {Requests: {s"storage": {i: {...}, s: "50M", Format: "DecimalSI"}}},
  	VolumeName:       "pvc-1f227581-aa7c-4ed4-a30f-3c2abc302118",
- 	StorageClassName: &"hostpath",
+ 	StorageClassName: nil,
  	VolumeMode:       &"Filesystem",
  	DataSource:       nil,
  	DataSourceRef:    nil,
  }
 && cannot patch "influxdb-pvc" with kind PersistentVolumeClaim: PersistentVolumeClaim "influxdb-pvc" is invalid: spec: Forbidden: spec is immutable after creation except resources.requests for bound claims
  core.PersistentVolumeClaimSpec{
  	... // 2 identical fields
  	Resources:        {Requests: {s"storage": {i: {...}, s: "250Mi", Format: "BinarySI"}}},
  	VolumeName:       "pvc-e1f7a48e-5c10-4d57-90c5-6a95d5eab867",
- 	StorageClassName: &"hostpath",
+ 	StorageClassName: nil,
  	VolumeMode:       &"Filesystem",
  	DataSource:       nil,
  	DataSourceRef:    nil,
  }
 && cannot patch "influxdb2-pvc" with kind PersistentVolumeClaim: PersistentVolumeClaim "influxdb2-pvc" is invalid: spec: Forbidden: spec is immutable after creation except resources.requests for bound claims
  core.PersistentVolumeClaimSpec{
  	... // 2 identical fields
  	Resources:        {Requests: {s"storage": {i: {...}, s: "250Mi", Format: "BinarySI"}}},
  	VolumeName:       "pvc-776895f1-3137-4853-b02a-22eae07f7cc7",
- 	StorageClassName: &"hostpath",
+ 	StorageClassName: nil,
  	VolumeMode:       &"Filesystem",
  	DataSource:       nil,
  	DataSourceRef:    nil,
  }

How to reproduce?

1. Deploy the streampipes according to https://github.com/apache/streampipes/blob/dev/installer/k8s/README.md
2. Upgrade the helm chart by executing helm upgrade streampipes ./.

Expected behavior

No response

Additional technical information

No response

Are you willing to submit a PR?

None

[bossenti]

@smlabt maybe that's something where you can jump in ☺️

[luoluoyuyu]

hi @RobertIndie
I think the reason for the error is that the value of StorageClassName is the empty string, so pv uses hostpath by default, we should change the value of StorageClassName to hostpath.

[RobertIndie]

@luoluoyuyu Thanks for investigating. I assign this issue to you since you are already working on this issue.

[bossenti]

resolved by #1775