Possible typecheck failures when parsing agent prometheus configmap

[charlesakalugwu]

There is an issue with how the log analytics agent image ciprod:ciprod07092019 parses the prometheus data collection configmap container-azm-ms-agentconfig.

Fields which are defined as array of strings cause the parsing to fail if specified as an empty array e.g. fieldpass = [].

****************Start Prometheus Config Processing********************
config::configmap container-azm-ms-agentconfig for settings mounted, parsing values for prometheus config map
config::Successfully parsed mounted prometheus config map
config::Typecheck failed for prometheus config settings for replicaset, using defaults
****************End Prometheus Config Processing********************

The workaround is to comment out those fields - exclude_namespaces, fieldpass, fielddrop, urls and kubernetes_services - if there are no concrete values to specify for them.

/kind bug
/cc @rashmichandrashekar

[rashmichandrashekar]

Tracking it here. Will fix it with the next release : https://msazure.visualstudio.com/InfrastructureInsights/_workitems/edit/5309591