Configuration Status Field
Istio 1.6 and later provides information about the propagation of configuration
changes through the mesh, using the
status field of the resource.
Status is disabled by default, and can be enabled during install with:
$ istioctl install --set values.pilot.env.PILOT_ENABLE_STATUS=true --set values.global.istiod.enableAnalysis=true
status field contains the state of a resource’s configuration with various
informational messages, including:
- The resource’s readiness.
- How many data plane instances are associated with it.
- Information for the output of tools, such as
For example, the
kubectl wait command monitors the
status field to determine
whether to unblock configuration and resume. For more information, see
Wait for Resource Status to Apply Configuration.
You can view the contents of the
status field of a resource using
kubectl get. For example, to view the status of a virtual service, use the following
$ kubectl get virtualservice <service-name> -o yaml
In the output, the
status field contains several nested fields with details
about the process of propagating configuration changes through the mesh.
status: conditions: - lastProbeTime: null lastTransitionTime: "2019-12-26T22:06:34Z" message: "61/122 complete" reason: "stillPropagating" status: "False" type: Reconciled - lastProbeTime: null lastTransitionTime: "2019-12-26T22:06:56Z" message: "1 Error and 1 Warning found. See validationMessages field for details" reason: "errorsFound" status: "False" type: PassedAnalysis validationMessages: - code: IST0101 level: Error message: 'Referenced gateway not found: "bogus-gateway"' - code: IST0102 level: Warn message: 'mTLS not enabled for virtual service'
Conditions represent possible states of the resource. The
type field of a
condition can have the following values:
When you apply a configuration, a condition of each of these types is added to the
status field of the
Reconciled type condition is initialized to
to indicate the resource is still in the process of being distributed to all the proxies.
When finished reconciling, the status will become
status field might
True instantaneously, depending on the speed of the cluster.
status field of the
PassedAnalysis type condition will have a value of
False depending on whether or not Istio’s background analyzers have
detected a problem with your config. If
False, the problem(s) will be detailed in the
PassedAnalysis condition is an informational field only. It does not
block the application of an invalid configuration. It is possible for the status to
indicate that validation failed, but applying the configuration was successful.
This means Istio was able to set the new configuration, but the configuration was
invalid, likely due to a syntax error or similar problem.
In case of a validation failure, check the
validationMessages field for
more information. The
validationMessages field has details about the validation
process, such as error messages indicating that Istio cannot apply the
configuration, and warning or informational messages that did not result in an
If the condition of type
PassedValidation has a status of
False, there will
validationMessages explaining the problem. There might be messages present
PassedValidation status is
True, because those are informational
For validation message examples, see Configuration Analysis Messages.