用fluent bit搜集kubernates日志，如何处理多行数据

使用es+kibana+fluent bit搜集集群日志，但不清楚多行数据改如何搜集，docker搜集的container日志都是一行是一条日志，但如果是异常栈的日志改如何处理？求大神指点
配置如下：
[SERVICE]
Flush 1
Daemon Off
Log_Level info
Parsers_File parsers.conf
HTTP_Server On
HTTP_Listen 0.0.0.0
HTTP_Port 2020
[INPUT]
Name tail
Tag kube.
Refresh_Interval 5
Mem_Buf_Limit 5MB
Skip_Long_Lines Off
Multiline On
Multiline_Flush 3
Parser_Firstline line-start-tag
Parser_1 log-parser-pattern1
Path /Volumes/disk/soft/sample.log
[FILTER]
Name kubernetes
Match kube.
tls.verify Off
K8S-Logging.Parser On
K8S-Logging.Exclude On

[OUTPUT]
Name stdout
Match *
Host x-efk-f4bb0-elasticsearch
Port 9200

Logstash_Format On
Retry_Limit False
Regex_Parser Log_Parser_Pattern
Type flb_type
Logstash_Prefix cluster_logroot@x-efk-f4bb0-fluent-bit-666rs:/# cat fluent-bit/etc/parsers.conf
[PARSER]
Name kube-custom
Format regex

[PARSER]
Name filter-kube-test
Format regex
Name line-start-tag
Format regex
Regex ^~[(?[^~]*)][(?[^~])]~~[(?[^~])][(?[^~]*)][(?[^~])]~~[(?[^~])][(?[^~]*)]~
Time_Keep On
[PARSER]
Name log-parser-pattern1
Format regex
Regex ^~~~[(.*)$
Time_Keep On