unbound log parsers for fluent-bit

parsers.conf

# for log-time-ascii: no
[PARSER]
    Name   unbound
    Format regex
    Regex  ^\[(?<time>[\d]*)\] (?<process>[\D]*)\[(?<pid>[\d]*):(?<tid>[\d]*)\] (?<message_type>[\D]*): (?<message>.*)
    Time_Key time

# for log-time-ascii: yes
[PARSER]
    Name   unbound_utc
    Format regex
    Regex  ^(?<time>\w{3}\s\d{1,2}\s[^ ]*) (?<process>[\D]*)\[(?<pid>[\d]*):(?<tid>[\d]*)\] (?<message_type>[\D]*): (?<message>.*)
    Time_Key time
    Time_Format %b %d %H:%M:%S