Introduction

The first thing we'll do is install Kubecost in our cluster. As part of the lab preparation an the AWS Load Balancer Controller and EBS CSI driver were pre-installed to provide ingress and storage to Kubecost.

All that we have left to do is install Kubecost as a Helm chart:

~$aws ecr-public get-login-password \

--region us-east-1 | helm registry login \

--username AWS \

--password-stdin public.ecr.aws

~$helm upgrade --install kubecost oci://public.ecr.aws/kubecost/cost-analyzer \

--version "${KUBECOST_CHART_VERSION}" \

--namespace "kubecost" --create-namespace \

--values https://raw.githubusercontent.com/kubecost/cost-analyzer-helm-chart/v${KUBECOST_CHART_VERSION}/cost-analyzer/values-eks-cost-monitoring.yaml \

--values ~/environment/eks-workshop/modules/observability/kubecost/values.yaml \

--wait

NAME: kubecost

LAST DEPLOYED: Thu Jun 13 17:48:55 2024

NAMESPACE: kubecost

STATUS: deployed

REVISION: 1

TEST SUITE: None

NOTES:

[...]

This will take a few minutes to complete, then we can check to see if Kubecost is running:

~$kubectl get deployment -n kubecost

kubecost-cost-analyzer        1/1     1            1           16m

kubecost-kube-state-metrics   1/1     1            1           16m

kubecost-prometheus-server    1/1     1            1           16m

Kubecost has been exposed using a LoadBalancer service, and we can find the URL to access it like so:

~$export KUBECOST_SERVER=$(kubectl get svc -n kubecost kubecost-cost-analyzer -o json | jq --raw-output '.status.loadBalancer.ingress[0].hostname'):9090

~$echo "Kubecost URL: http://$KUBECOST_SERVER"

Kubecost URL: http://k8s-kubecost-kubecost-e83ecf8fc1-fc26f5c92767520f.elb.us-west-2.amazonaws.com:9090

The load balancer will take some time to provision so use this command to wait until Kubecost responds:

~$curl --head -X GET --retry 20 --retry-all-errors --retry-delay 15 \

--connect-timeout 5 --max-time 10 \

http://$KUBECOST_SERVER

curl: (6) Could not resolve host: k8s-kubecost-kubecost-e83ecf8fc1-fc26f5c92767520f.elb.us-west-2.amazonaws.com

Warning: Problem : timeout. Will retry in 15 seconds. 20 retries left.

[...]

HTTP/1.1 200 OK

Server: nginx/1.24.0

Date: Thu, 13 Jun 2024 17:53:16 GMT

Content-Type: text/html

Content-Length: 1150

Last-Modified: Thu, 12 Oct 2023 17:01:29 GMT

Connection: keep-alive

ETag: 1.106.3

Cache-Control: must-revalidate

Cache-Control: max-age=300

Accept-Ranges: bytes

Open the URL in your browser to access Kubecost:

http://k8s-kubecost-kubecost-e83ecf8fc1-fc26f5c92767520f.elb.us-west-2.amazonaws.com:9090