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handle the missing mlmd service-ca cert gracefully #728

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handle the missing mlmd service-ca cert gracefully #728

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HumairAK
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@HumairAK HumairAK commented Oct 18, 2024 •
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This will handle the following dspo log message more gracefully:

2024-10-18T16:25:29-04:00       INFO    Applying ML-Metadata (MLMD) Resources   {"namespace": "dspa2", "dspa_name": "sample"}
2024-10-18T16:25:29-04:00       INFO    Updating components endpoints   {"namespace": "dspa2", "dspa_name": "sample"}
2024-10-18T16:25:29-04:00       ERROR   Reconciler error        {"controller": "datasciencepipelinesapplication", "controllerGroup": "datasciencepipelinesapplications.opendatahub.io", "controllerKind": "DataSciencePipelinesApplication", "DataSciencePipelinesApplication": {"name":"sample","namespace":"dspa2"}, "namespace": "dspa2", "name": "sample", "reconcileID": "0a19a4b2-fd85-4094-8be8-c7a57eddd4c3", "error": "secret containing the certificate for MLMD gRPC Server was not created yet"}
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler
        /home/hukhan/go/1.21.3/pkg/mod/sigs.k8s.io/controller-runtime@v0.15.0/pkg/internal/controller/controller.go:324
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem
        /home/hukhan/go/1.21.3/pkg/mod/sigs.k8s.io/controller-runtime@v0.15.0/pkg/internal/controller/controller.go:265
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2.2
        /home/hukhan/go/1.21.3/pkg/mod/sigs.k8s.io/controller-runtime@v0.15.0/pkg/internal/controller/controller.go:226

This is an expected state, and should not print a stack trace, but we still want to stacktrace other errors. So I've introduced a custom error for this scenario. In the future we should handle this via states for components, for example "state: loading" or "state: waitingOnDependency", instead of errors, but this should be approached consistently for all components, this pr is a simple fix until then.

Result:

2024-10-18T16:29:32-04:00       INFO    Applying ML-Metadata (MLMD) Resources   {"namespace": "dspa2", "dspa_name": "sample"}
2024-10-18T16:29:32-04:00       INFO    MLMD gRPC Server cert secret not found, this is likely because it has not been created yet      {"namespace": "dspa2", "dspa_name": "sample"}
2024-10-18T16:29:32-04:00       INFO    Updating components endpoints   {"namespace": "dspa2", "dspa_name": "sample"}

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openshift-ci bot commented Oct 18, 2024

[APPROVALNOTIFIER] This PR is NOT APPROVED

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@HumairAK
handle the missing mlmd service-ca cert gracefully
34fd75a 
When mlmd is being reconciled, it expects a secret with certs that is
created by the service-ca (when podtopodtls is enabled). This is an
expected outcome, so we should not be reporting stacktraces for this.
This change instead catches this scenario via a custom error for such
lagging dependencies, and logs it at info level without a stack trace.

Signed-off-by: Humair Khan <HumairAK@users.noreply.github.com>
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Change to PR detected. A new PR build was completed.
A new image has been built to help with testing out this PR: quay.io/opendatahub/data-science-pipelines-operator:pr-728

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Change to PR detected. A new PR build was completed.
A new image has been built to help with testing out this PR: quay.io/opendatahub/data-science-pipelines-operator:pr-728

hbelmiro
hbelmiro reviewed Oct 22, 2024
View reviewed changes
controllers/dspipeline_controller.go
@@ -313,7 +314,14 @@ func (r *DSPAReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.
err = r.ReconcileMLMD(ctx, dspa, params)
if err != nil {
r.setStatusAsNotReady(config.MLMDProxyReady, err, dspaStatus.SetMLMDProxyStatus)
return ctrl.Result{}, err
// TODO: this (and other components) should handle these scenarios via states or statuses instead of error
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Maybe we should link the existing issue here.
https://issues.redhat.com/browse/RHOAIENG-13321

@VaniHaripriya
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/lgtm

@openshift-ci openshift-ci bot added the lgtm label Oct 24, 2024
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PR needs rebase.

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