Add FileDataProvider to the testbed #2444
Merged
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FileDataProvider in an implementation of the DataProvider for use in end-to-end tests.
The data to send is loaded from a file. The file should contain one JSON-encoded
Export*ServiceRequest Protobuf message. The file can be recorded using the "file"
exporter.
FileDataProvider is useful for implementing end-to-end tests that use realistic data.
As an example I also added TestMetricsFromFile which uses testdata/k8s-metrics.json
real world data that I recorded using k8scluster receiver running on my local
Kubernetes cluster.