JSON
The JSON parser is the simplest option: if the original log source is a JSON map string, it will take its structure and convert it directly to the internal binary representation.
A simple configuration that can be found in the default parsers configuration file, is the entry to parse Docker log files (when the tail input plugin is used):
[PARSER]
Name docker
Format json
Time_Key time
Time_Format %Y-%m-%dT%H:%M:%S %z
The following log entry is a valid content for the parser defined above:
{"key1": 12345, "key2": "abc", "time": "2006-07-28T13:22:04Z"}
After processing, its internal representation will be:
[1154103724, {"key1"=>12345, "key2"=>"abc"}]
The time has been converted to Unix timestamp (UTC) and the map reduced to each component of the original message.
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