ConfigFromEnv fills a Config object from the following environment variables: ${envPrefix}_URL - required ${envPrefix}_CACERT - optional ${envPrefix}_CERT - optional ${envPrefix}_KEY - optional (required if client cert is given) This function exits through logg.Fatal() if a required value is missing.

IsErrNoRows checks whether the given error is a NoRowsError.

NewBulkQueryCache initializes a BulkQueryCache that executes the given queries once per refresh interval.

BulkQuery is a query that can be executed by type BulkQueryCache (see there for details).

BulkQueryCache queries Prometheus in bulk and caches the result.

Client provides API access to a Prometheus server.

Config contains the set of configuration parameters that are required for establishing a connection to a Prometheus instance's API.

NoRowsError is returned by PrometheusClient.GetSingleValue() if there were no result values at all.