version 2.3.1 doesn't support postgresql 16?

[adamjacobmuller]

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pg-operator seems to not be compatible with postgresql 16 which pg-db is using by default?

More about the problem

2024-01-26T20:43:43.620Z	ERROR	Reconciler error	{"controller": "perconapgcluster", "controllerGroup": "pgv2.percona.com", "controllerKind": "PerconaPGCluster", "PerconaPGCluster": {"name":"name-master","namespace":"name"}, "namespace": "name", "name": "name-master", "reconcileID": "b54a138a-b749-43a3-8550-f3f86bbe0cb6", "error": "update/create PostgresCluster: PostgresCluster.postgres-operator.crunchydata.com \"name-master\" is invalid: spec.postgresVersion: Invalid value: 16: spec.postgresVersion in body should be less than or equal to 15", "errorVerbose": "PostgresCluster.postgres-operator.crunchydata.com \"name-master\" is invalid: spec.postgresVersion: Invalid value: 16: spec.postgresVersion in body should be less than or equal to 15\nupdate/create PostgresCluster\ngithub.com/percona/percona-postgresql-operator/percona/controller/pgcluster.(*PGClusterReconciler).Reconcile\n\t/go/src/github.com/percona/percona-postgresql-operator/percona/controller/pgcluster/controller.go:241\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Reconcile\n\t/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:119\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler\n\t/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:316\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:266\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2.2\n\t/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:227\nruntime.goexit\n\t/usr/local/go/src/runtime/asm_amd64.s:1650"}
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem
	/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:266
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2.2
	/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:227

Steps to reproduce

1. install pg-operator helm chart (only configuration is to enable watchAllNamespaces)
2. install pg-db helm chart (no configuration)
3. cluster is not created and observe errors in logs

Versions

1. Kubernetes v1.28.5+k3s1
2. Operator 1.3.1
3. Database 16
4. pg-operator chart 2.3.3
5. pg-db chart 2.3.2

Anything else?

running:

    Image:          registry-1.percona.com/percona/percona-postgresql-operator:2.3.1
    Image ID:       registry-1.percona.com/percona/percona-postgresql-operator@sha256:a6495c8e13d9fe3f50df12219e9d9cf64fa610fe5680a0a78d0e5c4fb3be2456

[adamjacobmuller]

also, this says support for 16.x was added in 2.3.0 so 😕

https://docs.percona.com/percona-operator-for-postgresql/2.0/ReleaseNotes/Kubernetes-Operator-for-PostgreSQL-RN2.3.0.html

[spron-in]

Hello @adamjacobmuller.

I was not able to reproduce it.

1. Deployed the operator from a helm chart enabling watchAllNamespaces
2. Deployed the default cluster from the chart.

Cluster is up and running with PG16.

Operator 1.3.1
what is it?

[adamjacobmuller]

Operator 1.3.1
what is it?

Hi,

Sorry about that, I meant operator image 2.3.1

Looking through the code, I'm not sure exactly where the source for that maximum version check is (I saw where it does the check, but, I can't understand where it gets max=15) from. I assume it can't be from the code directly because I couldn't see how the 2.3.1 operator works for you but not me.

Is it reading the maximum supported version from the CRD or something and perhaps I have a stale version of that?

[adamjacobmuller]

Hi,

Testing this out more, I have a very simple reproducer...

Also did the exact same steps on another cluster (which has never had percona postgres operator installed) with identical results.

[spron-in]

@adamjacobmuller thanks! Still can't reproduce it. Could you please run and show the output of helm search repo percona to check on the versions?

@tplavcic any thoughts?

[adamjacobmuller]

# helm repo list |grep percona
percona             	https://percona.github.io/percona-helm-charts/
# helm search repo percona
NAME                         	CHART VERSION	APP VERSION	DESCRIPTION
stable/percona               	1.2.3        	5.7.26     	DEPRECATED - free, fully compatible, enhanced, ...
stable/percona-xtradb-cluster	1.0.8        	5.7.19     	DEPRECATED - free, fully compatible, enhanced, ...
percona/pg-db                	2.3.4        	2.3.1      	A Helm chart to deploy the PostgreSQL database ...
percona/pg-operator          	2.3.3        	2.3.1      	A Helm chart to deploy the Percona Operator for...
percona/pmm                  	1.3.10       	2.41.1     	A Helm chart for Percona Monitoring and Managem...
percona/ps-db                	0.6.5        	0.6.0      	A Helm chart for installing Percona Server Data...
percona/ps-operator          	0.6.1        	0.6.0      	A Helm chart for Deploying the Percona Operator...
percona/psmdb-db             	1.15.3       	1.15.0     	A Helm chart for installing Percona Server Mong...
percona/psmdb-operator       	1.15.2       	1.15.0     	A Helm chart for deploying the Percona Operator...
percona/pxc-db               	1.13.6       	1.13.0     	A Helm chart for installing Percona XtraDB Clus...
percona/pxc-operator         	1.13.5       	1.13.0     	A Helm chart for deploying the Percona Operator...
#

[bmm-alc]

Dumb question, if this is an upgrade have you upgraded the CRD during setup ? IIRC this is not done by default

[adamjacobmuller]

no, I can reproduce this on a fresh cluster, i also removed (all I think) relevant CRDs, i put that in the screenshot above

[RegisHubelia]

Actually, I had a similar issue where I had a CRD from crunchydata... Percona uses the CR "postgresclusters.postgres-operator.crunchydata.com". While all the other CRDs are separated, this one can conflict with percona. This isn't ideal, especially if you want to move from crunchy to percona - and you want to do it in parallel - this can cause a whole lot of issues if not considered correctly. I'd suggest changing the CRD name for postgresclusters.postgres-operator.percona or something similar so we could have both operators working in parallel while migrating. A side note, If you have running clusters with crunchydata or other that uses this CDR, do NOT remove this CRD as it will most likely delete all clusters with it.