docs: add otel ebpf profiling support (#3713)

* docs: add otel ebpf profiling support

---------

Co-authored-by: Dmitry Filimonov <[email protected]>
Co-authored-by: Kim Nylander <[email protected]>

docs/sources/configure-client/opentelemetry/ebpf-profiler.md

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+---
+title: OpenTelemetry profiling support
+menuTitle: OpenTelemetry profiling
+description: OpenTelemetry profiling support in Pyroscope
+weight: 10
+---
+
+# OpenTelemetry profiling support
+
+{{< docs/experimental product="OpenTelemetry profiles" >}}
+
+Pyroscope includes **experimental** support for receiving and visualizing profiles from OpenTelemetry sources. This integration allows you to:
+
+- Collect system-wide profiles using the [OpenTelemetry eBPF profiler](https://github.com/open-telemetry/opentelemetry-ebpf-profiler)
+- Process profile data through the OpenTelemetry Collector
+- Visualize profiles in Grafana using Pyroscope
+
+## Considerations
+
+Before getting started, you should consider the following limitations:
+
+- The OpenTelemetry profiles protocol ([proto files](https://github.com/open-telemetry/opentelemetry-proto/tree/main/opentelemetry/proto/profiles)) is under active development:
+    - Breaking changes are expected and have occurred
+    - Compatibility between components (profiler, collector, backend) requires careful version management
+    - We maintain support for the latest protocol version, but updates may be required frequently
+
+- Symbolization support is currently limited:
+  - Function names may not appear in flamegraphs for some programs
+  - We're working on improving symbol resolution and adding support for manual symbol uploads
+
+- We recommend evaluating this feature for development and testing purposes, but waiting for protocol stabilization before production use
+
+## Requirements
+
+- Linux system (amd64/arm64) for eBPF profiler
+- OpenTelemetry Collector with profiles feature gate enabled
+- Grafana with Pyroscope data source enabled
+
+## Architecture
+
+The profile collection pipeline consists of:
+
+1. **OpenTelemetry eBPF Profiler**: Collects system-wide profiles
+2. **OpenTelemetry Collector**: Receives and forwards profile data
+3. **Pyroscope**: Stores and processes profiles
+4. **Grafana**: Visualizes profile data
+
+## Get started
+
+For detailed setup instructions and working examples, refer to the [examples repository](https://github.com/grafana/pyroscope/tree/main/examples/grafana-agent-auto-instrumentation/ebpf-otel).
+
+The examples demonstrate deployments for both Docker and Kubernetes environments.