passive mode

• endpoint dedication for each product
  • provides metrics per product by a dedicated endpoint. Ex: /metrics/PRODUCT_NAME
  • provides all metrics under /metrics
• passive mode data collection
  • collects data in background by interval in collector layer, and stores in LRU cache
  • gets data from cache in handler layer and returns it back
  • adds interval field to config
• renames object to storage in config and code base