awsemfexporter

type Config struct {
	// AWSSessionSettings contains the common configuration options
	// for creating AWS session to communicate with backend
	awsutil.AWSSessionSettings `mapstructure:",squash"`
	// LogGroupName is the name of CloudWatch log group which defines group of log streams
	// that share the same retention, monitoring, and access control settings.
	LogGroupName string `mapstructure:"log_group_name"`
	// LogStreamName is the name of CloudWatch log stream which is a sequence of log events
	// that share the same source.
	LogStreamName string `mapstructure:"log_stream_name"`
	// Namespace is a container for CloudWatch metrics.
	// Metrics in different namespaces are isolated from each other.
	Namespace string `mapstructure:"namespace"`
	// RetainInitialValueOfDeltaMetric is the flag to signal that the initial value of a metric is a valid datapoint.
	// The default behavior is that the first value occurrence of a metric is set as the baseline for the calculation of
	// the delta to the next occurrence. With this flag set to true the exporter will instead use this first value as the
	// initial delta value. This is especially useful when handling low frequency metrics.
	RetainInitialValueOfDeltaMetric bool `mapstructure:"retain_initial_value_of_delta_metric"`
	// DimensionRollupOption is the option for metrics dimension rollup. Three options are available, default option is "ZeroAndSingleDimensionRollup".
	// "ZeroAndSingleDimensionRollup" - Enable both zero dimension rollup and single dimension rollup
	// "SingleDimensionRollupOnly" - Enable single dimension rollup
	// "NoDimensionRollup" - No dimension rollup (only keep original metrics which contain all dimensions)
	DimensionRollupOption string `mapstructure:"dimension_rollup_option"`

	// LogRetention is the option to set the log retention policy for the CloudWatch Log Group. Defaults to Never Expire if not specified or set to 0
	// Possible values are 1, 3, 5, 7, 14, 30, 60, 90, 120, 150, 180, 365, 400, 545, 731, 1827, 2192, 2557, 2922, 3288, or 3653
	LogRetention int32 `mapstructure:"log_retention"`

	// Tags is the option to set tags for the CloudWatch Log Group.  If specified, please add at most 50 tags.  Input is a string to string map like so: { 'key': 'value' }
	// Keys must be between 1-128 characters and follow the regex pattern: ^([\p{L}\p{Z}\p{N}_.:/=+\-@]+)$
	// Values must be between 1-256 characters and follow the regex pattern: ^([\p{L}\p{Z}\p{N}_.:/=+\-@]*)$
	Tags map[string]string `mapstructure:"tags"`

	// ParseJSONEncodedAttributeValues is an array of attribute keys whose corresponding values are JSON-encoded as strings.
	// Those strings will be decoded to its original json structure.
	ParseJSONEncodedAttributeValues []string `mapstructure:"parse_json_encoded_attr_values"`

	// MetricDeclarations is the list of rules to be used to set dimensions for exported metrics.
	MetricDeclarations []*MetricDeclaration `mapstructure:"metric_declarations"`

	// MetricDescriptors is the list of override metric descriptors that are sent to the CloudWatch
	MetricDescriptors []MetricDescriptor `mapstructure:"metric_descriptors"`

	// OutputDestination is an option to specify the EMFExporter output. Default option is "cloudwatch"
	// "cloudwatch" - direct the exporter output to CloudWatch backend
	// "stdout" - direct the exporter output to stdout
	// TODO: we can support directing output to a file (in the future) while customer specifies a file path here.
	OutputDestination string `mapstructure:"output_destination"`

	// EKSFargateContainerInsightsEnabled is an option to reformat certin metric labels so that they take the form of a high level object
	// The end result will make the labels look like those coming out of ECS and be more easily injected into cloudwatch
	// Note that at the moment in order to use this feature the value "kubernetes" must also be added to the ParseJSONEncodedAttributeValues array in order to be used
	EKSFargateContainerInsightsEnabled bool `mapstructure:"eks_fargate_container_insights_enabled"`

	// ResourceToTelemetrySettings is an option for converting resource attributes to telemetry attributes.
	// "Enabled" - A boolean field to enable/disable this option. Default is `false`.
	// If enabled, all the resource attributes will be converted to metric labels by default.
	ResourceToTelemetrySettings resourcetotelemetry.Settings `mapstructure:"resource_to_telemetry_conversion"`

	// DetailedMetrics is an option for retaining detailed datapoint values in exported metrics (e.g instead of exporting a quantile as a statistical value,
	// preserve the quantile's population)
	DetailedMetrics bool `mapstructure:"detailed_metrics"`

	// Version is an option for sending metrics to CloudWatchLogs with Embedded Metric Format in selected version  (with "_aws")
	// https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch_Embedded_Metric_Format_Specification.html#CloudWatch_Embedded_Metric_Format_Specification_structure
	// Otherwise, sending metrics as Embedded Metric Format version 0 (without "_aws")
	Version string `mapstructure:"version"`
	// contains filtered or unexported fields
}

type LabelMatcher struct {
	// List of label names to filter by. Their corresponding values are concatenated using
	// the separator and matched against the specified regular expression.
	LabelNames []string `mapstructure:"label_names"`
	// (Optional) Separator placed between concatenated source label values. (Default: ';')
	Separator string `mapstructure:"separator"`
	// Regex string to be used to match against values of the concatenated labels.
	Regex string `mapstructure:"regex"`
	// contains filtered or unexported fields
}

type MetricDeclaration struct {
	// Dimensions is a list of dimension sets (which are lists of dimension names) to be
	// included in exported metrics. If the metric does not contain any of the specified
	// dimensions, the metric would be dropped (will only show up in logs).
	Dimensions [][]string `mapstructure:"dimensions"`
	// MetricNameSelectors is a list of regex strings to be matched against metric names
	// to determine which metrics should be included with this metric declaration rule.
	MetricNameSelectors []string `mapstructure:"metric_name_selectors"`
	// (Optional) List of label matchers that define matching rules to filter against
	// the labels of incoming metrics.
	LabelMatchers []*LabelMatcher `mapstructure:"label_matchers"`
	// contains filtered or unexported fields
}

type MetricDescriptor struct {
	// MetricName is the name of the metric
	MetricName string `mapstructure:"metric_name"`
	// Unit defines the override value of metric descriptor `unit`
	Unit string `mapstructure:"unit"`
	// Overwrite set to true means the existing metric descriptor will be overwritten or a new metric descriptor will be created; false means
	// the descriptor will only be configured if empty.
	Overwrite bool `mapstructure:"overwrite"`
}