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Resource: Sanitize the "location" label for k8s resource.

See original GitHub issue

For the “location” label of k8s resource, we used to get the value from GcpMetadataConfig.getZone() and pass it directly to Stackdriver Monitoring, and it worked fine previously. However it looks like the format of GCP metadata Zone has changed recently: (https://github.com/googleapis/gax-dotnet/issues/233):

~~Before: “us-central1-d”~~
~~Now: “projects/…/zones/us-central1-d”~~

If we directly passed the new value to Stackdriver, an error will be returned saying that com.google.api.gax.rpc.InvalidArgumentException: io.grpc.StatusRuntimeException: INVALID_ARGUMENT: One or more TimeSeries could not be written: Unrecognized region or location.: ....

~~This can be fixed by only extracting the location value from the new label.~~

Issue Analytics

State:
Created 5 years ago
Comments:6 (5 by maintainers)

Top GitHub Comments

1reaction

songy23commented, Jan 29, 2019

@samhaink Could you try ssh to one of the container and see if you’re able to retrieve the location info? Use wget --header "Metadata-Flavor: Google" "http://metadata.google.internal/computeMetadata/v1/instance/instance/zone".

@mayurkale22 has tried to reproduce this error but it looks like everything is working fine with our GKE instance.

0reactions

songy23commented, Jan 31, 2019

@samhaink Apologies, the second url is correct. Looks like you’re able to get the zone string (projects/*/zones/us-east1-c). With our resource util, “us-east1-c” should be auto-detected and added as “location” in the resource labels (https://github.com/census-instrumentation/opencensus-java/blob/master/contrib/monitored_resource_util/src/main/java/io/opencensus/contrib/monitoredresource/util/GcpMetadataConfig.java#L46-L55).

This looks strange. We’ll try to reproduce this error again.

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