[resourcedetection] EKS detector fails identifying EKS cluster when the configmap `aws_auth` is missing (ex: EKS Auto Mode)

[dloucasfx]

Component(s)

processor/resourcedetection

What happened?

Description

The EKS detector depends on the presence of aws_auth configmap to flag a cluster as EKS.
This identifier does not cover all uses cases, e.g. EKS Auto Mode, the aws_auth is not created.

According to AWS docs https://docs.aws.amazon.com/eks/latest/userguide/auth-configmap.html#aws-auth-configmap

The aws-auth ConfigMap is automatically created and applied to your cluster when you create a managed node group or when you create a node group using eksctl.

And when you create EKS with Auto Mode enabled, aws-auth is not created/needed.
https://docs.aws.amazon.com/eks/latest/userguide/auth-configmap.html#aws-auth-configmap

Amazon EKS Auto Mode represents a significant evolution in Kubernetes infrastructure management, combining secure and scalable cluster infrastructure with integrated Kubernetes capabilities managed by AWS . The service provides fully-managed worker node operations, eliminating the need for customers to set up Managed Node Groups or AutoScaling groups .

Steps to Reproduce

Create an EKS cluster from the UI using the default setting (which enables EKS Auto Mode)

Expected Result

Error when EKS detector runs isEKS()

2025/04/14 18:19:48 settings.go:478: Set config to [/conf/relay.yaml]
2025/04/14 18:19:48 settings.go:539: Set memory limit to 450 MiB
2025/04/14 18:19:48 settings.go:524: Set soft memory limit set to 450 MiB
2025/04/14 18:19:48 settings.go:373: Set garbage collection target percentage (GOGC) to 400
2025/04/14 18:19:48 settings.go:414: set "SPLUNK_LISTEN_INTERFACE" to "0.0.0.0"
2025-04-14T18:19:48.440Z	info	service@v0.122.1/service.go:193	Setting up own telemetry...
2025-04-14T18:19:48.441Z	info	memorylimiter@v0.122.1/memorylimiter.go:74	Memory limiter configured	{"otelcol.component.kind": "Processor", "limit_mib": 450, "spike_limit_mib": 90, "check_interval": 2}
2025-04-14T18:19:48.443Z	info	service@v0.122.1/service.go:260	Starting otelcol...	{"Version": "v0.122.0", "NumCPU": 2}
2025-04-14T18:19:48.443Z	info	extensions/extensions.go:40	Starting extensions...
2025-04-14T18:19:48.443Z	info	extensions/extensions.go:44	Extension is starting...	{"otelcol.component.id": "health_check", "otelcol.component.kind": "Extension"}
2025-04-14T18:19:48.443Z	info	healthcheckextension@v0.122.0/healthcheckextension.go:32	Starting health_check extension	{"otelcol.component.id": "health_check", "otelcol.component.kind": "Extension", "config": {"Endpoint":"0.0.0.0:13133","TLSSetting":null,"CORS":null,"Auth":null,"MaxRequestBodySize":0,"IncludeMetadata":false,"ResponseHeaders":null,"CompressionAlgorithms":null,"ReadTimeout":0,"ReadHeaderTimeout":0,"WriteTimeout":0,"IdleTimeout":0,"Path":"/","ResponseBody":null,"CheckCollectorPipeline":{"Enabled":false,"Interval":"5m","ExporterFailureThreshold":5}}}
2025-04-14T18:19:48.443Z	info	extensions/extensions.go:61	Extension started.	{"otelcol.component.id": "health_check", "otelcol.component.kind": "Extension"}
2025-04-14T18:19:48.443Z	info	internal/resourcedetection.go:137	began detecting resource information	{"otelcol.component.id": "resourcedetection/k8s_cluster_name", "otelcol.component.kind": "Processor", "otelcol.pipeline.id": "metrics", "otelcol.signal": "metrics"}
2025-04-14T18:19:48.455Z	warn	internal/resourcedetection.go:159	failed to detect resource	{"otelcol.component.id": "resourcedetection/k8s_cluster_name", "otelcol.component.kind": "Processor", "otelcol.pipeline.id": "metrics", "otelcol.signal": "metrics", "error": "isEks() error retrieving auth configmap: failed to retrieve ConfigMap kube-system/aws-auth: configmaps \"aws-auth\" not found"}
Retrying fetching data...
2025-04-14T18:19:49.492Z	warn	internal/resourcedetection.go:159	failed to detect resource	{"otelcol.component.id": "resourcedetection/k8s_cluster_name", "otelcol.component.kind": "Processor", "otelcol.pipeline.id": "metrics", "otelcol.signal": "metrics", "error": "isEks() error retrieving auth configmap: failed to retrieve ConfigMap kube-system/aws-auth: configmaps \"aws-auth\" not found"}
Retrying fetching data...
2025-04-14T18:19:54.173Z	warn	internal/resourcedetection.go:159	failed to detect resource	{"otelcol.component.id": "resourcedetection/k8s_cluster_name", "otelcol.component.kind": "Processor", "otelcol.pipeline.id": "metrics", "otelcol.signal": "metrics", "error": "isEks() error retrieving auth configmap: failed to retrieve ConfigMap kube-system/aws-auth: configmaps \"aws-auth\" not found"}
Retrying fetching data...
2025-04-14T18:19:55.312Z	warn	internal/resourcedetection.go:159	failed to detect resource	{"otelcol.component.id": "resourcedetection/k8s_cluster_name", "otelcol.component.kind": "Processor", "otelcol.pipeline.id": "metrics", "otelcol.signal": "metrics", "error": "isEks() error retrieving auth configmap: failed to retrieve ConfigMap kube-system/aws-auth: configmaps \"aws-auth\" not found"}
2025-04-14T18:20:03.446Z	warn	internal/resourcedetection.go:166	Context was cancelled: %w	{"otelcol.component.id": "resourcedetection/k8s_cluster_name", "otelcol.component.kind": "Processor", "otelcol.pipeline.id": "metrics", "otelcol.signal": "metrics", "error": "context deadline exceeded"}
2025-04-14T18:20:03.446Z	info	internal/resourcedetection.go:188	detected resource information	{"otelcol.component.id": "resourcedetection/k8s_cluster_name", "otelcol.component.kind": "Processor", "otelcol.pipeline.id": "metrics", "otelcol.signal": "metrics", "resource": {}}
2025-04-14T18:20:03.446Z	info	internal/resourcedetection.go:137	began detecting resource information	{"otelcol.component.id": "resourcedetection", "otelcol.component.kind": "Processor", "otelcol.pipeline.id": "metrics/collector", "otelcol.signal": "metrics"}
2025-04-14T18:20:03.451Z	warn	internal/resourcedetection.go:159	failed to detect resource	{"otelcol.component.id": "resourcedetection", "otelcol.component.kind": "Processor", "otelcol.pipeline.id": "metrics/collector", "otelcol.signal": "metrics", "error": "isEks() error retrieving auth configmap: failed to retrieve ConfigMap kube-system/aws-auth: configmaps \"aws-auth\" not found"}
Retrying fetching data...
Retrying fetching data...
2025-04-14T18:20:04.872Z	warn	internal/resourcedetection.go:159	failed to detect resource	{"otelcol.component.id": "resourcedetection", "otelcol.component.kind": "Processor", "otelcol.pipeline.id": "metrics/collector", "otelcol.signal": "metrics", "error": "isEks() error retrieving auth configmap: failed to retrieve ConfigMap kube-system/aws-auth: configmaps \"aws-auth\" not found"}
2025-04-14T18:20:04.877Z	warn	internal/resourcedetection.go:159	failed to detect resource	{"otelcol.component.id": "resourcedetection", "otelcol.component.kind": "Processor", "otelcol.pipeline.id": "metrics/collector", "otelcol.signal": "metrics", "error": "isEks() error retrieving auth configmap: failed to retrieve ConfigMap kube-system/aws-auth: configmaps \"aws-auth\" not found"}
Retrying fetching data...
2025-04-14T18:20:13.085Z	warn	internal/resourcedetection.go:159	failed to detect resource	{"otelcol.component.id": "resourcedetection", "otelcol.component.kind": "Processor", "otelcol.pipeline.id": "metrics/collector", "otelcol.signal": "metrics", "error": "isEks() error retrieving auth configmap: failed to retrieve ConfigMap kube-system/aws-auth: configmaps \"aws-auth\" not found"}

Actual Result

No error

OpenTelemetry Collector configuration

      resourcedetection:
        detectors:
        - env
        - eks
        - ec2
        - system
        override: true
        timeout: 15s

Collector version

main

[github-actions]

Pinging code owners:

• processor/resourcedetection: @Aneurysm9 @dashpole

See Adding Labels via Comments if you do not have permissions to add labels yourself.

[crobert-1]

A maintainer has approved the PR that resolves this issue. Removing needs triage.