Expect
Made for testing: make sure that your records contain the expected key and values
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Made for testing: make sure that your records contain the expected key and values
Last updated
Was this helpful?
The expect filter plugin allows you to validate that records match certain criteria in their structure, like validating that a key exists or it has a specific value.
The following page just describes the configuration properties available, for a detailed explanation of its usage and use cases, please refer the following page:
The plugin supports the following configuration parameters:
key_exists
Check if a key with a given name exists in the record.
key_not_exists
Check if a key does not exist in the record.
key_val_is_null
check that the value of the key is NULL.
key_val_is_not_null
check that the value of the key is NOT NULL.
key_val_eq
check that the value of the key equals the given value in the configuration.
action
action to take when a rule does not match. The available options are warn , exit or "result_key". On warn, a warning message is sent to the logging layer when a mismatch of the rules above is found; using exit makes Fluent Bit abort with status code 255; result_key is to add a matching result to each record.
result_key
specify a key name of matching result. This key is to be used only when 'action' is 'result_key'.
As mentioned on top, refer to the following page for specific details of usage of this filter: