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[Feature]: Container Apps: default parity with @azure/monitor-opentelemetry (resource detection, SDK stats metadata lookup) #277
Description
Component
azure-monitor
Problem Statement
We run a Node.js app on Azure Container Apps with @azure/monitor-opentelemetry 1.20.1 and tried moving to @microsoft/opentelemetry 1.5.0, as the Azure Monitor docs now recommend. With default settings, two things differ on Container Apps:
- The platform isn't detected: no
cloud.platformor Container Apps attributes.@azure/monitor-opentelemetryincludesazureContainerAppsDetectorsince 1.20.0. - The exporter's SDK-stats metadata lookup (
GET http://169.254.169.254/metadata/instance/compute?api-version=2017-12-01) is exported as a failed dependency plus anECONNREFUSEDexception on each start (Container Apps has no IMDS). The same exporter version (1.0.0-beta.46) under@azure/monitor-opentelemetry1.20.1 doesn't export it.
Evidence (our app's container image, Node.js 26.13, ESM with import-in-the-middle's synchronous hook; Container Apps conditions as measured on our live app: the six CONTAINER_APP_* variables set, IMDS refusing connections)
| Distro | Settings | cloud.platform |
Failed IMDS dependency + exception per start |
|---|---|---|---|
@azure/monitor-opentelemetry 1.20.1 |
defaults | azure.container_apps |
none |
@microsoft/opentelemetry 1.5.0 |
defaults | not set | 1 + 1 |
| same | APPLICATIONINSIGHTS_STATSBEAT_DISABLED or …_STATSBEAT_DISABLED_ALL |
not set | 1 + 1 |
| same | APPLICATIONINSIGHTS_SDKSTATS_DISABLED=true |
not set | none |
| same | resource: detectResources({ detectors: [azureContainerAppsDetector] }) |
azure.container_apps |
n/a |
Proposed Solution
Could the distro include azureContainerAppsDetector by default, and keep the SDK-stats metadata lookup out of exported telemetry on Container Apps, matching @azure/monitor-opentelemetry?
Alternatives Considered
The last two rows above work as workarounds. Neither blocks us, but we'd rather not turn SDK stats off or carry our own detector wiring, so for now we're staying on @azure/monitor-opentelemetry.
Additional Context
Versions: @microsoft/opentelemetry 1.5.0, @azure/monitor-opentelemetry 1.20.1, @azure/monitor-opentelemetry-exporter 1.0.0-beta.46, @opentelemetry/resource-detector-azure 0.29.0, Node.js 26.13.0.
Thanks. We're happy to test a change against our setup.
Activity
github-actions commentedon Nov 2, 2026
cc Hector Hernandez (@hectorhdzg) Jackson Weber (@JacksonWeber) Leighton Chen (@lzchen) Nev (@MSNev) Radhika Gupta (@rads-1996) Jeremy Voss (@jeremydvoss)