README.rst

OpenTelemetry Flask Tracing

This library builds on the OpenTelemetry WSGI middleware to track web requests in Flask applications.

Installation

pip install opentelemetry-instrumentation-flask

Configuration

Exclude lists

To exclude certain URLs from being tracked, set the environment variable OTEL_PYTHON_FLASK_EXCLUDED_URLS with comma delimited regexes representing which URLs to exclude.

For example,

export OTEL_PYTHON_FLASK_EXCLUDED_URLS="client/.*/info,healthcheck"

will exclude requests such as https://site/client/123/info and https://site/xyz/healthcheck.

You can also pass the comma delimited regexes to the instrument_app method directly:

FlaskInstrumentor().instrument_app(app, excluded_urls="client/.*/info,healthcheck")

References

• OpenTelemetry Flask Instrumentation
• OpenTelemetry Project
• OpenTelemetry Python Examples