Data not sent to App Insights when run on Docker

When running a Python module on Docker while using the Azure Monitor metrics exporter, I get an SSL error, and no data is sent to App Insights. When running the module locally, the data gets sent just fine. Not sure if it’s related to this Python issue, but the workaround listed there didn’t work for me.

This is the main function of the code I’m running:

def main():
    RUNTIME_MEASURE = measure_module.MeasureFloat("runtime", "Test runtime", "seconds")
    RUNTIME_VIEW = view_module.View("runtime_view", "Test runtime", [], RUNTIME_MEASURE, aggregation_module.LastValueAggregation())

    exporter = metrics_exporter.new_metrics_exporter(export_interval=0.5, instrumentation_key=APPINSIGHTS_INSTRUMENTATIONKEY)
    view_manager.register_exporter(exporter)

    view_manager.register_view(RUNTIME_VIEW)
    mmap = stats_recorder.new_measurement_map()
    tmap = tag_map_module.TagMap()


    """Generate the HLD for the cluster."""
    args = parse_args(sys.argv[1:])

    start_time = default_timer()

    # Generates HLD and manifests directory.
    hydrator = HLD_Generator(args)
    hydrator.generate()

    runtime = default_timer() - start_time
    mmap.measure_float_put(RUNTIME_MEASURE, runtime)
    mmap.record(tmap)
    time.sleep(0.5)
    print(f"Hydrate runtime: {runtime}")

This is the output I get after running docker run (SSL errors, followed by the normal output of the module, followed by more SSL errors):

docker run -v /c/Users/t-maliao/Downloads/config:/config -v /c/Users/t-maliao:/app/out hydrate.azurecr.io/hydrate:test -k /config -n hi -d -v -t

Transient client side error HTTPSConnectionPool(host='dc.services.visualstudio.com', port=443): Max retries exceeded with url: /v2/track (Caused by SSLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:852)'),)).
Transient client side error HTTPSConnectionPool(host='dc.services.visualstudio.com', port=443): Max retries exceeded with url: /v2/track (Caused by SSLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:852)'),)).
Transient client side error HTTPSConnectionPool(host='dc.services.visualstudio.com', port=443): Max retries exceeded with url: /v2/track (Caused by SSLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:852)'),)).

< normal output from the module (deleted for the sake of conciseness) >


Transient client side error HTTPSConnectionPool(host='dc.services.visualstudio.com', port=443): Max retries exceeded with url: /v2/track (Caused by SSLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:852)'),)).
Hydrate runtime: 1.8845756000373513

Any insight into this issue would be much appreciated! Thanks!

[frsann]

The same error, but I think I figured it out myself. I’m using PiHole Firewall on home network, and disabling it seem to have helped.

[lzchen]

@SanthoshMedide Tracked by: https://github.com/census-instrumentation/opencensus-python/issues/908