Filter Elements
- aliases
- allocation_type
- count
- date_from
- date_from_format
- date_to
- date_to_format
- direction
- disk_space
- epoch
- exclude
- field
- intersect
- key
- kind
- max_num_segments
- pattern
- period_type
- range_from
- range_to
- reverse
- source
- state
- stats_result
- timestring
- threshold_behavior
- unit
- unit_count
- unit_count_pattern
- use_age
- value
- week_starts_on
You can use environment variables in your configuration files.