Add Parseable output plugin documentation

pipeline/outputs/parseable.md

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+---
+description: Send logs, metrics, and traces to Parseable
+---
+
+# Parseable
+
+Stream logs, metrics, and traces to [Parseable](https://www.parseable.com) by utilizing the [OpenTelemetry plugin](opentelemetry.md) to send telemetry data to Parseable's OpenTelemetry-compatible Ingestor endpoints.
+
+## Configuration parameters
+
+| Key                        | Description | Default |
+| -------------------------- | ----------- | ------- |
+| `host`                     | Your Parseable Ingestor hostname or IP address. | `parseable` |
+| `port`                     | TCP port of your Parseable Ingestor. | `8000` |
+| `http_user`                | Username for HTTP basic authentication. | `admin` |
+| `http_passwd`              | Password for HTTP basic authentication. | `admin` |
+| `header`                   | Required headers for Parseable integration. Must include `X-P-Stream` (stream name) and `X-P-Log-Source` (telemetry type: `otel-logs`, `otel-metrics`, or `otel-traces`). | _none_ |
+| `add_label`                | Add custom labels to the telemetry data. | _none_ |
+| `log_response_payload`     | Log the response payload from the server for debugging. | `False` |
+| `metrics_uri`              | Specify the HTTP URI for the target web server listening for metrics. | `/v1/metrics` |
+| `logs_uri`                 | Specify the HTTP URI for the target web server listening for logs. | `/v1/logs` |
+| `traces_uri`               | Specify the HTTP URI for the target web server listening for traces. | `/v1/traces` |
+| `tls`                      | Enable or disable TLS/SSL encryption. | `Off` |
+
+### TLS / SSL
+
+The OpenTelemetry output plugin supports TLS/SSL. For more details about the properties available and general configuration, see [TLS/SSL](../../administration/transport-security.md).
+
+## Get started
+
+To get started with sending telemetry data to Parseable:
+
+1. Ensure your Parseable Ingestor is running and accessible.
+1. Configure authentication credentials (username/password).
+1. In your main Fluent Bit configuration file append the following:
+
+{% tabs %}
+{% tab title="fluent-bit.yaml" %}
+
+```yaml
+pipeline:
+  outputs:
+    # Send logs to Parseable
+    - name: opentelemetry
+      match: v1_logs
+      host: parseable
+      port: 8000
+      logs_uri: /v1/logs
+      log_response_payload: true
+      tls: off
+      http_user: admin
+      http_passwd: admin
+      header: X-P-Stream otellogs
+      header: X-P-Log-Source otel-logs
+      add_label: app fluent-bit
+
+    # Send metrics to Parseable
+    - name: opentelemetry
+      match: v1_metrics
+      host: parseable
+      port: 8000
+      metrics_uri: /v1/metrics
+      log_response_payload: true
+      tls: off
+      http_user: admin
+      http_passwd: admin
+      header: X-P-Stream otelmetrics
+      header: X-P-Log-Source otel-metrics
+      add_label: app fluent-bit
+
+    # Send traces to Parseable
+    - name: opentelemetry
+      match: v1_traces
+      host: parseable
+      port: 8000
+      traces_uri: /v1/traces
+      log_response_payload: true
+      tls: off
+      http_user: admin
+      http_passwd: admin
+      header: X-P-Stream oteltraces
+      header: X-P-Log-Source otel-traces
+      add_label: app fluent-bit
+```
+
+{% endtab %}
+{% tab title="fluent-bit.conf" %}
+
+```text
+# Send logs to Parseable
+[OUTPUT]
+    Name          opentelemetry
+    Match         v1_logs
+    Host          parseable
+    Port          8000
+    Logs_uri      /v1/logs
+    Log_response_payload True
+    Tls           Off
+    Http_User     admin
+    Http_Passwd   admin
+    Header        X-P-Stream otellogs
+    Header        X-P-Log-Source otel-logs
+    Add_label     app fluent-bit
+
+# Send metrics to Parseable
+[OUTPUT]
+    Name          opentelemetry
+    Match         v1_metrics
+    Host          parseable
+    Port          8000
+    Metrics_uri   /v1/metrics
+    Log_response_payload True
+    Tls           Off
+    Http_User     admin
+    Http_Passwd   admin
+    Header        X-P-Stream otelmetrics
+    Header        X-P-Log-Source otel-metrics
+    Add_label     app fluent-bit
+
+# Send traces to Parseable
+[OUTPUT]
+    Name          opentelemetry
+    Match         v1_traces
+    Host          parseable
+    Port          8000
+    Traces_uri    /v1/traces
+    Log_response_payload True
+    Tls           Off
+    Http_User     admin
+    Http_Passwd   admin
+    Header        X-P-Stream oteltraces
+    Header        X-P-Log-Source otel-traces
+    Add_label     app fluent-bit
+```
+
+{% endtab %}
+{% endtabs %}
+
+## Stream Configuration
+
+Parseable uses streams to organize your telemetry data. The `X-P-Stream` header specifies which stream the data should be sent to:
+
+- `otellogs`: Stream for log data
+- `otelmetrics`: Stream for metrics data  
+- `oteltraces`: Stream for trace data
+
+The `X-P-Log-Source` header helps identify the source of the telemetry data for better organization and filtering. The header must be set to `otel-logs`, `otel-metrics`, or `otel-traces` based on the telemetry type.
+
+## Authentication
+
+Parseable supports HTTP basic authentication. Configure the `http_user` and `http_passwd` parameters with your Parseable server credentials.
+
+## References
+
+- [Parseable documentation](https://www.parseable.com/docs)
+- [Parseable Fluent-bit integration](https://www.parseable.com/docs/datasource/log-agents/fluent-bit)