    "metrics_config": {
        "id": "metrics_config",
        "summary": "An entry in the metrics configuration",
        "properties": {
            "source_labels": {
                "type": "array",
                "items": {
                    "type": "string"
                },
                "description": "The source labels, a match is based on concatenation of the labels"
            },
            "action": {
                "type": "string",
                "description": "The action to perform on match",
                "enum": ["skip_when_empty", "report_when_empty", "replace", "keep", "drop", "drop_label"]
            },
            "target_label": {
                "type": "string",
                "description": "The application state version"
            },
            "replacement": {
                "type": "string",
                "description": "The replacement string to use when replacing a value"
            },
            "regex": {
                "type": "string",
                "description": "The regex string to use when replacing a value"
            },
            "separator": {
                "type": "string",
                "description": "The separator string to use when concatenating the labels"
            }
        }
    }