[Explored Related] Add platform type for Container Insights in EKS

[zhihonl]

Description of the issue

The CWLogs team is unable to build an entire "Entity" object for ContainerInsights since metrics don't indicate whether they're running on EKS or native K8s, which is needed for key attributes (e.g. the Environment). Without this, telemetry cannot be correlated for ContainerInsights metrics making customers lose out on the Explore Related experience for these metrics.

We have EKS detection logic in the CloudWatch Agent. We want to invoke this in the Entity Processor translation logic to set the platform type for Entity. Then, we want the Entity Processor to process this into the resource attributes so that it becomes present in EMF logs.

Description of changes

• Update the entity processor to emit platform type in Container Insights EKS

License

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Tests

Unit Tests.

Sample Output

"CloudWatchMetrics": [
        {
            "Namespace": "ContainerInsights",
            "Dimensions": [
                [
                    "ClusterName"
                ],
                [
                    "ClusterName",
                    "ContainerName",
                    "FullPodName",
                    "Namespace",
                    "PodName"
                ],
                [
                    "ClusterName",
                    "ContainerName",
                    "Namespace",
                    "PodName"
                ]
            ],
            "Metrics": [
                {
                    "Name": "container_memory_failures_total",
                    "Unit": "Count/Second",
                    "StorageResolution": 60
                },
                {
                    "Name": "container_cpu_utilization",
                    "Unit": "Percent",
                    "StorageResolution": 60
                },
                {
                    "Name": "container_memory_utilization",
                    "Unit": "Percent",
                    "StorageResolution": 60
                }
            ]
        }
    ],
    "ClusterName": "cluster-name",
    "ContainerName": "petclinic-container",
    "FullPodName": "petclinic-pod-lq2wb",
    "InstanceId": "i-123456789",
    "InstanceType": "m5.large",
    "Namespace": "default",
    "NodeName": "ip-123-456-7-890.ec2.internal",
    "PlatformType": "AWS::EKS",
    "PodName": "petclinic-pod",

Requirements

Before commit the code, please do the following steps.

1. Run make fmt and make fmt-sh
2. Run make lint