Dynatrace Otel collector not connecting to the containerized ActiveGate otlp endpoint

vinsontan_anz — Wed, 17 Dec 2025 11:33:35 GMT

I have setup dynatrace components in a GKe cluster with telemetryingest capability which deployed dynatrace otel collector as part of the dynakube deployment. I have setup app pod to export otel traces to dynatrace otel collector but from the otel collector log, it shows bad gateway on connecting to dynatrace activegate otlp endpoint. I have setup custom properties on the spec.activegate to enable otlp.

The following is the log from the dynatrace otel collector:

2025-10-20T04:37:56.170Z info internal/retry_sender.go:133 Exporting failed. Will retry the request after interval. {"resource": {"service.instance.id": "e0b013ae-1f92-4803-bd84-6d08e2b2a5e6", "service.name": "dynatrace-otel-collector", "service.version": "0.38.0"}, "otelcol.component.id": "otlphttp", "otelcol.component.kind": "exporter", "otelcol.signal": "traces", "error": "failed to make an HTTP request: Post \"https://dynakube-activegate.dynatrace.svc/e/pyx45104/api/v2/otlp/v1/traces\": Bad Gateway", "interval": "13.351872759s"}

In the otel collector otlp endpoint configmap:

apiVersion: v1 data: DT_ENDPOINT: https://dynakube-activegate.dynatrace.svc/e/pyx45104/api/v2/otlp kind: ConfigMap metadata: annotations: internal.operator.dynatrace.com/template-hash: "3896151151" creationTimestamp: "2025-10-17T07:45:16Z" labels: app.kubernetes.io/component: dynatrace-opentelemetry-collector app.kubernetes.io/created-by: dynakube app.kubernetes.io/name: dynatrace-operator app.kubernetes.io/version: v1.7.1 name: dynatrace-otlp-api-endpoint namespace: dynatrace ownerReferences: - apiVersion: dynatrace.com/v1beta5 blockOwnerDeletion: true controller: true kind: DynaKube name: dynakube uid: a219c91a-cd92-42f7-bbf5-a99e1dab9abe resourceVersion: "1760687116331343019" uid: 785693bf-0499-4ed7-aad3-679992f2de27

So what could be the reason for the bad gateway ?

Re: Dynatrace otel collector is not able to connect to the containerized AG otlp endpoint : Bad Gatway

Michal_Gebacki — Tue, 16 Dec 2025 15:59:08 GMT

Hello, @vinsontan_anz!

Were you able to find a solution or workaround for this issue? Is it still affecting your environment?

Thank you for any feedback!

Re: Dynatrace otel collector is not able to connect to the containerized AG otlp endpoint : Bad Gatway

vinsontan_anz — Tue, 16 Dec 2025 23:02:02 GMT

Yes, it was a bug on the otel collector config when Proxy is used in dynakube. The fix was released in dynatrace operator 1.7.2. The issue was basically the NO_PROXY env variable defined in the Dynatrace otel collector was not defining the AG endpoint with .svc.

topic Re: Dynatrace otel collector is not able to connect to the containerized AG otlp endpoint : Bad Gatway in Container platforms

Dynatrace Otel collector not connecting to the containerized ActiveGate otlp endpoint

Re: Dynatrace otel collector is not able to connect to the containerized AG otlp endpoint : Bad Gatway

Re: Dynatrace otel collector is not able to connect to the containerized AG otlp endpoint : Bad Gatway