Deploying the Collector

Deploying Open Telemetry Collector

Set variables in the OTEL collector’s kubernetes manifest file:

envsubst < kubernetes/adot/otel-container-insights-infra.yaml | sponge kubernetes/adot/otel-container-insights-infra.yaml

Install the OTEL collector to the EKS Cluster as a DaemonSet:

kubectl apply -f kubernetes/adot/otel-container-insights-infra.yaml

Check to see that the OTEL collector’s DaemonSet is running on each node:

kubectl get nodes

 
NAME                                           STATUS   ROLES    AGE    VERSION
ip-192-168-29-122.us-west-2.compute.internal   Ready    <none>   2d6h   v1.21.2-eks-55daa9d
ip-192-168-43-204.us-west-2.compute.internal   Ready    <none>   2d6h   v1.21.2-eks-55daa9d
ip-192-168-70-26.us-west-2.compute.internal    Ready    <none>   2d6h   v1.21.2-eks-55daa9d

kubectl get pods -n aws-otel-eks -o wide

 
NAME                    READY   STATUS    RESTARTS   AGE     IP               NODE                                           NOMINATED NODE   READINESS GATES
aws-otel-eks-ci-47x6x   1/1     Running   0          9m26s   192.168.39.13    ip-192-168-43-204.us-west-2.compute.internal   <none>           <none>
aws-otel-eks-ci-hj8vs   1/1     Running   0          9m26s   192.168.13.246   ip-192-168-29-122.us-west-2.compute.internal   <none>           <none>
aws-otel-eks-ci-vhcrs   1/1     Running   0          9m26s   192.168.78.46    ip-192-168-70-26.us-west-2.compute.internal    <none>           <none>

At this point the OTEL collector is installed and sending CloudWatch Insights metrics to CloudWatch. We can get Cloudwatch metrics URL by running following command:

echo "https://${AWS_REGION}.console.aws.amazon.com/cloudwatch/home?region=${AWS_REGION}#metricsV2:graph=~()"

Cloudwatch nav screenshot

Then select the Pod level metrics: Cloudwatch metrics screenshot

Filter to just CPU Utilization, and change the visualization to be of type Number. And you’ll have a dashboard of the deployed Pod’s CPU Utilization: CloudWatch screenshot