conf: parser: add istio-envoy-proxy parser (fluent#5739)

Signed-off-by: ANGkeith <[email protected]>

Author: ANGkeith

conf/parsers.conf

@@ -102,6 +102,15 @@
     Time_Keep   On
     Time_Key start_time
 
+[PARSER]
+    # https://rubular.com/r/17KGEdDClwiuDG
+    Name    istio-envoy-proxy
+    Format  regex
+    Regex ^\[(?<start_time>[^\]]*)\] "(?<method>\S+)(?: +(?<path>[^\"]*?)(?: +\S*)?)? (?<protocol>\S+)" (?<response_code>[^ ]*) (?<response_flags>[^ ]*) (?<response_code_details>[^ ]*) (?<connection_termination_details>[^ ]*) (?<upstream_transport_failure_reason>[^ ]*) (?<bytes_received>[^ ]*) (?<bytes_sent>[^ ]*) (?<duration>[^ ]*) (?<x_envoy_upstream_service_time>[^ ]*) "(?<x_forwarded_for>[^ ]*)" "(?<user_agent>[^\"]*)" "(?<x_request_id>[^\"]*)" (?<authority>[^ ]*)" "(?<upstream_host>[^ ]*)" (?<upstream_cluster>[^ ]*) (?<upstream_local_address>[^ ]*) (?<downstream_local_address>[^ ]*) (?<downstream_remote_address>[^ ]*) (?<requested_server_name>[^ ]*) (?<route_name>[^  ]*)
+    Time_Format %Y-%m-%dT%H:%M:%S.%L%z
+    Time_Keep   On
+    Time_Key start_time
+
 [PARSER]
     # http://rubular.com/r/tjUt3Awgg4
     Name cri