Error when starting up postgres, using version 1.16

[joubertb]

I am not able to startup Postgres. Installed version 1.16. I am getting the following error. Any thoughts?

1.667944382668021e+09 INFO controllers.Kubegres KUBEGRES {"name": "test-postgres", "Status": {"blockingOperation":{"statefulSetOperation":{},"statefulSetSpecUpdateOperation":{}},"previousBlockingOperation":{"statefulSetOperation":{},"statefulSetSpecUpdateOperation":{}}}}
1.667944383520829e+09 ERROR controllers.Kubegres Unable to load any deployed BackUp CronJob. {"CronJob name": "backup-test-postgres", "error": "no matches for kind "CronJob" in version "batch/v1""}
reactive-tech.io/kubegres/controllers/ctx/log.(*LogWrapper).ErrorEvent
/workspace/controllers/ctx/log/LogWrapper.go:62
reactive-tech.io/kubegres/controllers/states.(*BackUpStates).getDeployedCronJob
/workspace/controllers/states/BackUpStates.go:91
reactive-tech.io/kubegres/controllers/states.(*BackUpStates).loadStates
/workspace/controllers/states/BackUpStates.go:49
reactive-tech.io/kubegres/controllers/states.loadBackUpStates
/workspace/controllers/states/BackUpStates.go:43
reactive-tech.io/kubegres/controllers/states.(*ResourcesStates).loadBackUpStates
/workspace/controllers/states/ResourcesStates.go:95
reactive-tech.io/kubegres/controllers/states.(*ResourcesStates).loadStates
/workspace/controllers/states/ResourcesStates.go:66
reactive-tech.io/kubegres/controllers/states.LoadResourcesStates
/workspace/controllers/states/ResourcesStates.go:40
reactive-tech.io/kubegres/controllers/ctx/resources.CreateResourcesContext
/workspace/controllers/ctx/resources/ResourcesContext.go:110
reactive-tech.io/kubegres/controllers.(*KubegresReconciler).Reconcile
/workspace/controllers/kubegres_controller.go:76
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Reconcile
/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.12.2/pkg/internal/controller/controller.go:121
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler
/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.12.2/pkg/internal/controller/controller.go:320
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem
/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.12.2/pkg/internal/controller/controller.go:273
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2.2
/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.12.2/pkg/internal/controller/controller.go:234
1.6679443835210457e+09 ERROR Reconciler error {"controller": "kubegres", "controllerGroup": "kubegres.reactive-tech.io", "controllerKind": "Kubegres", "kubegres": {"name":"test-postgres","namespace":"default"}, "namespace": "default", "name": "test-postgres", "reconcileID": "cb49cdb7-2464-4a48-8365-822d9e0af891", "error": "no matches for kind "CronJob" in version "batch/v1""}
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem
/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.12.2/pkg/internal/controller/controller.go:273
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2.2
/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.12.2/pkg/internal/controller/controller.go:234
1.6679443835211165e+09 DEBUG events Warning {"object": {"kind":"Kubegres","namespace":"default","name":"test-postgres","uid":"b380917d-6c13-4471-995e-8069960adc3b","apiVersion":"kubegres.reactive-tech.io/v1","resourceVersion":"4535076"}, "reason": "BackUpCronJobLoadingErr", "message": "Unable to load any deployed BackUp CronJob. 'CronJob name': backup-test-postgres - no matches for kind "CronJob" in version "batch/v1""}

=====================================
apiVersion: kubegres.reactive-tech.io/v1
kind: Kubegres
metadata:
name: test-postgres
namespace: default
spec:
replicas: 2
image: postgres:14.1
database:
size: 8Gi
storageClassName: local-storage
env:
- name: POSTGRES_PASSWORD
valueFrom:
secretKeyRef:
name: postgres-secret
key: superUserPassword
- name: POSTGRES_REPLICATION_PASSWORD
valueFrom:
secretKeyRef:
name: postgres-secret
key: replicationUserPassword

================
k8s version:
Server Version: version.Info{Major:"1", Minor:"20", GitVersion:"v1.20.15", GitCommit:"8f1e5bf0b9729a899b8df86249b56e2c74aebc55", GitTreeState:"clean", BuildDate:"2022-01-19T17:23:01Z", GoVersion:"go1.15.15", Compiler:"gc", Platform:"linux/amd64"}

================
storage classes:
NAME PROVISIONER RECLAIMPOLICY VOLUMEBINDINGMODE ALLOWVOLUMEEXPANSION AGE
local-storage kubernetes.io/no-provisioner Delete WaitForFirstConsumer false 20d

[bendahl]

Hi @joubertb,

it looks like you're using an outdated K8S version (1.20.15), which does not support the stable Cronjob API. For this to work, you will need to upgrade your cluster, to a more recent version.

On a different note, I believe that it would be advisable to update your cluster anyway, in order to ensure that the version you're running is properly patched. For more details, see the documentation: https://kubernetes.io/releases/.

I hope this helps.

Cheers
Ben