how to get serilog logs in fluent-bit

[NamanGajjar26]

there are i am use asp .net core mvc in serilog there are configer in program.cs
Log.Logger = new LoggerConfiguration()
.WriteTo.File("/var/log/containers/myopenseach.log", rollingInterval: RollingInterval.Day)
.CreateLogger();
and pass this this message from controller
Log.Information("custommvc");

how to get this log message in fluent-bit this mvc project deployed in kubernetes using docker container

i try to configer like this
config:
service: |
[SERVICE]
Daemon Off
Flush 1
Log_Level debug
Parsers_File /fluent-bit/etc/parsers.conf
Parsers_File /fluent-bit/etc/conf/custom_parsers.conf
HTTP_Server On
HTTP_Listen 0.0.0.0
HTTP_Port {{ .Values.metricsPort }}
Health_Check On

https://docs.fluentbit.io/manual/pipeline/inputs

inputs: |
[INPUT]
Name tail
Path /var/log/containers/.log
multiline.parser docker, cri
Tag kube.
Mem_Buf_Limit 5MB
Parser docker_no_time

[INPUT]
    Name systemd
    Tag host.*
    Systemd_Filter _SYSTEMD_UNIT=kubelet.service
    Read_From_Tail On

[INPUT]
    Name  cpu
    Tag   cpu

https://docs.fluentbit.io/manual/pipeline/filters

filters: |
[FILTER]
Name kubernetes
Match kube.*
Kube_URL https://kubernetes.default:443
tls.verify Off
Merge_Log On
Keep_Log Off
K8S-Logging.Parser On
K8S-Logging.Exclude On

https://docs.fluentbit.io/manual/pipeline/outputs opensearch-cluster-master-headless.default.svc.cluster.local

outputs: |
[OUTPUT]
Name http
Match kube.*
Host data-prepper
Port 2021
Format json
URI /log/ingest

[OUTPUT]
    Name opensearch
    Match kube.*
    Host data-prepper
    Port 2021
    HTTP_User admin
    HTTP_Passwd TadhakDev01 
    Logstash_Format On     
    Trace_Error On
    Trace_Output On        
    Replace_Dots  On        
    Retry_Limit 20
    Index minikubelogs 
    tls Off
    tls.verify Off   
    net.connect_timeout 120
    net.connect_timeout_log_error true

https://docs.fluentbit.io/manual/administration/configuring-fluent-bit/classic-mode/upstream-servers

This configuration is deprecated, please use extraFiles instead.

upstream: {}

https://docs.fluentbit.io/manual/pipeline/parsers

customParsers: |
[PARSER]
Name docker_no_time
Format json
Time_Keep Off
Time_Key time
Time_Format %Y-%m-%dT%H:%M:%S.%L
and i am use opensearch data-prepper and send logs to open-search and see this logs in open-search dashboard
but there are not get serilog log message how to get using fluent-bit