Samples: add telemetry redaction sample

[Jakob-98]

Change Description

Following discussion with @SharonHart on a sample for redacting telemetry.

PR adding a sample for redacting logs/trace attributes using Presidio. This stems from some work I have been doing for redaction + telemetry, and since there wasn't any examples for telemetry in the repo, this is a simple example for folks to get started.

Details of what's included and how to run can be found in: docs/samples/deployments/redacting-telemetry/index.md

Note: the sample lacks depth in terms of production readiness, configurations & model selection for telemetry, et cetera, but this is clearly stated in the index.md

Happy to make changes if requested.

Issue reference

No issue

Checklist

• I have reviewed the contribution guidelines
• I have signed the CLA (if required)
• My code includes unit tests
• All unit tests and lint checks pass locally
• My PR contains documentation updates / additions if required

[Copilot]

Pull request overview

This PR adds a new sample demonstrating how to redact PII in telemetry data (logs and traces) using Presidio with OpenTelemetry, Grafana, Loki, and Tempo. The sample shows client-side PII masking where applications call Presidio to detect and redact sensitive information before logging.

Key Changes:

• Adds a complete Docker Compose-based demo environment with Presidio services, OpenTelemetry collector, and observability stack
• Provides a FastAPI demo application that generates synthetic PII logs and demonstrates both unredacted and redacted logging
• Includes a Grafana dashboard to visualize the difference between unredacted and redacted logs

Reviewed changes

Copilot reviewed 13 out of 13 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
mkdocs.yml	Adds navigation entry for the new telemetry redaction sample
docs/samples/index.md	Adds table entry linking to the telemetry redaction sample
docs/samples/deployments/redacting-telemetry/index.md	Main documentation explaining the demo purpose, setup, and usage
docs/samples/deployments/redacting-telemetry/docker-compose.yml	Orchestrates Presidio services, demo app, OpenTelemetry collector, and observability stack
docs/samples/deployments/redacting-telemetry/otel-collector-config.yaml	Configures OpenTelemetry collector to receive and forward logs/traces
docs/samples/deployments/redacting-telemetry/tempo-config.yaml	Configures Tempo for distributed tracing storage
docs/samples/deployments/redacting-telemetry/grafana/provisioning/datasources/datasources.yml	Configures Loki and Tempo as Grafana data sources
docs/samples/deployments/redacting-telemetry/grafana/provisioning/dashboards/dashboards.yml	Configures dashboard provisioning
docs/samples/deployments/redacting-telemetry/grafana/provisioning/dashboards/pii-dashboard.json	Defines dashboard showing unredacted vs redacted logs
docs/samples/deployments/redacting-telemetry/app/requirements.txt	Specifies Python dependencies for the demo app
docs/samples/deployments/redacting-telemetry/app/presidio_client.py	Reusable client for calling Presidio analyzer and anonymizer APIs
docs/samples/deployments/redacting-telemetry/app/main.py	Demo FastAPI application generating PII logs with redaction
docs/samples/deployments/redacting-telemetry/app/Dockerfile	Containerizes the demo application

[SharonHart]

Looks amazing, thanks
Left a comment that fixed the dashboards for me, let me know if its valid for all cases