example.yaml

resources:
  -
    group: ""
    version: v1
    resource: secrets

    # optional selector, if empty all resources will be processed
    selector: {}

    metrics:
      # metric name
      - name: kube_secret_expiry
        # metric help description
        help: Secret Expiry

        # metric value config
        # if no value is found, metric will not be exported
        value:
          # default or static value, optional
          value: 1

          # jsonPath for value extraction, must return only one value!
          jsonPath: .metadata.annotations.expiry

          # value conversion:
          #   timestamp: try to parse value as datetime and convert to unix timestamp
          convert: [toTimestamp]

        # metric labels
        labels:

          # static label foo="bar"
          foo:
            value: bar

          # plain value using jsonPath
          resourceVersion:
            jsonPath: .metadata.resourceVersion

          # plain value with timestamp conversion (value will be a unix timestamp as string)
          resourceVersionTS:
            jsonPath: .metadata.resourceVersion
            # value conversions
            #   toTimestamp: try to parse value as datetime and convert to unix timestamp
            #   toDateTime: try to parse value as datetime and convert to RFC3399 date
            #   toLower: lowercase value
            #   toUpper: uppercase value
            #   trim: trim whitespaces
            convert: [toTimestamp]

          # plain value with timestamp conversion (value will be a RFC3399 timestamp as string)
          resourceVersionDT:
            jsonPath: .metadata.resourceVersion
            convert: [toDateTime]

          managedBy:
            jsonPath: .metadata.labels.app\.kubernetes\.io\/managed-by
            convert: [ toLower ]

        # optional filters, must return a value, otherwise the resource is filtered
        filters:
          - jsonPath: .metadata.annotations.expiry
            # filter value by regex, optional
            regex: ^([0-9]{4}-[0-9]{2}-[0-9]{2}.*|[0-9]+)$