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sentry-nameko

This library provides an custom Data Interface for Sentry allowing you to better integrate Nameko Call ID Stacks in your logged events.

Installing and Prerequisites

You need Sentry installed. Instructions can be found here.

Install sentry-nameko into the virtualenv that your Sentry instance is installed in:

pip install sentry-nameko

In your sentry config (by default, at ~/.sentry/sentry.conf.py), you need to extend the SENTRY_ALLOWED_INTERFACES setting to include our custom interface. You'll probably want something like this:

SENTRY_ALLOWED_INTERFACES = SENTRY_ALLOWED_INTERFACES.union(
    ['sentry_nameko.CallIdStack',]
)

Logging events example

Presuming you're using built-in logging, and you've set up handlers to hit sentry, you can provide Call ID data to Sentry like so:

# worker_ctx is a WorkerContext instance

logger.log(
    log_level,
    message,
    extra={
        'tags': {
            'call_id': worker_ctx.call_id,
            'parent_call_id': worker_ctx.immediate_parent_call_id,
        },
        'sentry_nameko.CallIdStack': {
            'call_id_stack': worker_ctx.call_id_stack,
        },
    },
)

The tagging of the call_id and parent_call_id fields enables searches to be performed on events accordingly. The use of sentry_call_id_stack.CallIdStack triggers the custom data interface.

The WorkerContext class provides an extra_for_logging property where you can provide a default value for the extra parameters of log statements. It's recommended that you create an application specific sub-class where you return the extra data above, as well as anything else you'd like logged. Nameko's built-in log statements will automatically take advantage of this:

class MyApplicationWorkerContext(WorkerContext):
    @property
    def extra_for_logging(self):
        return {
            'tags': {
                'call_id': worker_ctx.call_id,
                'parent_call_id': worker_ctx.immediate_parent_call_id,
                'my_custom_tag': 'tag value',
            },
            'sentry_nameko.CallIdStack': {
                'call_id_stack': worker_ctx.call_id_stack,
            },
        }
        
logger.log(log_level, message, extra=worker_ctx.extra_for_logging)

Contributing

sentry-nameko is developed on GitHub, primarily by the development team at onefinestay. The GitHub repository is https://github.com/onefinestay/sentry-nameko.

You are welcome and encouraged to contribute comments, suggestions, patches and feature requests.

License

Apache 2.0. See LICENSE for details.

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Sentry tools for easier debugging of nameko applications

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