Simplify metric to tagged resource join.

[jeschkies]

No description provided.

[kgeckhart]

The associator is not intended to be used across different AWS Namespaces. It is always run within the context of a single DiscoveryJob which has a single namespace,

yet-another-cloudwatch-exporter/pkg/job/discovery.go

Lines 90 to 96 in 15f1631

	var assoc resourceAssociator
	if len(svc.DimensionRegexps) > 0 && len(resources) > 0 {
	assoc = maxdimassociator.NewAssociator(logger, discoveryJob.DimensionsRegexps, resources)
	} else {
	// If we don't have dimension regex's and resources there's nothing to associate but metrics shouldn't be skipped
	assoc = nopAssociator{}
	}