Skip to main content

Helper for easy breezy jaeger/zipkin in asyncio python services

Project description

easyjaeger

Async helper for aiozipkin

https://pypi.org/project/easyjaeger/

Requirements
  • python 3.6, 3.7, 3.8
  • aiozipkin==0.6.0
install

pip install easyjaeger

Usage

import asyncio
import random

from easyjaeger import CLIENT
from easyjaeger import SERVER
from easyjaeger import TracingConfig
from easyjaeger import append_trace
from easyjaeger import init_trace

JAEGER_CONFIG: TracingConfig = TracingConfig(
    host='http://127.0.0.1:9411/api/v2/spans',
    service_name='test_service',
    service_host='127.0.0.1',
    service_port=8000
)


async def slow_sql(parent_id: str):
    async with append_trace(JAEGER_CONFIG, 'SQL PROCESSING', 'SQL PROC', 'SQL PROC END', SERVER, {'dev': 'ms'},
                            parent_id):
        await asyncio.sleep(random.randint(1, 6))


async def main():
    parent_context_id: str

    # Main tracer
    async with init_trace(
            config=JAEGER_CONFIG,
            span_name='Slow HTTP',
            span_start='HTTP POST',
            span_end='HTTP END',
            span_kind=CLIENT,
            span_tags={'dev': 'ms'},
            trace_id='1bdfb69797e564c4a8810630816f4e4d') as p_id:
        # parent_context_id should be pass into append_trace's
        parent_context_id = p_id

        # Request to external (Redis)
        async with append_trace(
                config=JAEGER_CONFIG,
                span_name='Slow REDIS',
                span_start='REDIS HGETALL',
                span_end='HGETALL END',
                span_kind=CLIENT,
                span_tags={'dev': 'ms'},
                parent_id='kek'):
            await asyncio.sleep(0.5)

        # Request to external (SQL)
        async with append_trace(JAEGER_CONFIG, 'Slow SQL', 'SELECT * FROM', 'SQL END', CLIENT, {'dev': 'ms'},
                                parent_context_id) as p_id:
            await asyncio.gather(
                slow_sql(p_id),
                slow_sql(p_id),
                slow_sql(p_id),
            )


if __name__ == "__main__":
    asyncio.run(main())

aiohttp middleware examples:

Gateway
import aiohttp
from aiohttp import web

from easyjaeger import TracingConfig
from easyjaeger.helpers.aiohttp_helpers import MiddlewareConfig
from easyjaeger.helpers.aiohttp_helpers import parent_middleware

EASY_JAEGER_CONFIG: TracingConfig = TracingConfig(
    host='http://127.0.0.1:9411/api/v2/spans',
    service_name='init_service',
    service_host='127.0.0.1',
    service_port=8001,
)
EASY_JAEGER_MIDLLEWARE_CONFIG: MiddlewareConfig = MiddlewareConfig(
    EASY_JAEGER_CONFIG,
    trace_id='1bdfb69797e564c4a8810630816f4e4d'
)


async def init(request):
    async with aiohttp.ClientSession() as session:
        async with session.get('http://localhost:8002', headers={'Easy-Trace-ID': request['easy_trace_id']}) as resp:
            response = await resp.text()
    return web.Response(text=response)


app = web.Application(middlewares=[parent_middleware(EASY_JAEGER_MIDLLEWARE_CONFIG)])
app.add_routes([web.get('/', init)])

if __name__ == '__main__':
    web.run_app(app, port=8001)
child service
from aiohttp import web

from easyjaeger import TracingConfig
from easyjaeger.helpers.aiohttp_helpers import MiddlewareConfig
from easyjaeger.helpers.aiohttp_helpers import child_middleware

EASY_JAEGER_CONFIG: TracingConfig = TracingConfig(
    host='http://127.0.0.1:9411/api/v2/spans',
    service_name='child_service',
    service_host='127.0.0.1',
    service_port=8002,
)

EASY_JAEGER_MIDLLEWARE_CONFIG: MiddlewareConfig = MiddlewareConfig(
    EASY_JAEGER_CONFIG,
    span_name='web service',
    span_start='child service start',
    span_end='child service end'
)


async def child(request):
    return web.Response(text="Hello, world!")


app = web.Application(middlewares=[child_middleware(EASY_JAEGER_MIDLLEWARE_CONFIG)])
app.add_routes([web.get('/', child)])

if __name__ == '__main__':
    web.run_app(app, port=8002)

TODO:

  • add sync version
  • add tests
  • add docs
  • add more examples

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

easyjaeger-0.2.0.tar.gz (7.5 kB view hashes)

Uploaded Source

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page