# Using an OpenSearch Ingestion pipeline with Fluent Bit
<a name="configure-client-fluentbit"></a>

This sample [Fluent Bit configuration file](https://docs.fluentbit.io/manual/pipeline/outputs/http) sends log data from Fluent Bit to an OpenSearch Ingestion pipeline. For more information about ingesting log data, see [Log Analytics](https://github.com/opensearch-project/data-prepper/blob/main/docs/log_analytics.md) in the Data Prepper documentation.

Note the following:
+ The `host` value must be your pipeline endpoint. For example, `pipeline-endpoint.us-east-1osis.amazonaws.com`.
+ The `aws_service` value must be `osis`.
+ The `aws_role_arn` value is the ARN of the AWS IAM role for the client to assume and use for Signature Version 4 authentication.

```
[INPUT]
  name                  tail
  refresh_interval      5
  path                  /var/log/test.log
  read_from_head        true

[OUTPUT]
  Name http
  Match *
  Host pipeline-endpoint.us-east-1osis.amazonaws.com
  Port 443
  URI /log/ingest
  Format json
  aws_auth true
  aws_region region
  aws_service osis
  aws_role_arn arn:aws:iam::account-id:role/ingestion-role
  Log_Level trace
  tls On
```

You can then configure an OpenSearch Ingestion pipeline like the following, which has HTTP as the source:

```
version: "2"
unaggregated-log-pipeline:
  source:
    http:
      path: "/log/ingest"
  processor:
    - grok:
        match:
          log:
            - "%{TIMESTAMP_ISO8601:timestamp} %{NOTSPACE:network_node} %{NOTSPACE:network_host} %{IPORHOST:source_ip}:%{NUMBER:source_port:int} -> %{IPORHOST:destination_ip}:%{NUMBER:destination_port:int} %{GREEDYDATA:details}"
    - grok:
        match:
          details:
            - "'%{NOTSPACE:http_method} %{NOTSPACE:http_uri}' %{NOTSPACE:protocol}"
            - "TLS%{NOTSPACE:tls_version} %{GREEDYDATA:encryption}"
            - "%{NUMBER:status_code:int} %{NUMBER:response_size:int}"
    - delete_entries:
        with_keys: ["details", "log"]

  sink:
    - opensearch:
        hosts: ["https://search-domain-endpoint.us-east-1es.amazonaws.com"]
        index: "index_name"
        index_type: custom
        bulk_size: 20
        aws:
          region: "region"
```