eks-app-helm-chart: Deploying Applications on Amazon EKS with Helm

This document provides the configuration details for the eks-app-helm-chart. The chart creates a deployment, a service, a pod disruption budget, an ingress resource, and HPA.

Amazon EKS Auto Mode

If you are using EKS Auto Mode this chart is application ready. You can deploy the chart as it is, and it will create the necessary resources for you.

• IngressClass Controller: eks.amazonaws.com/alb by default, if you are using a different ingress controller, you can change the ingressClass.controller value.
• Ingress Annotations: since the default IngressClass Controller is eks.amazonaws.com/alb, the default annotations are set to alb.ingress.kubernetes.io/target-type: ip and alb.ingress.kubernetes.io/scheme: internet-facing. If you are using a different ingress controller, you can change the ingress.annotations value.
  • More information on the annotations can be found here.
• Learn more about EKS Auto Mode here.
• EKS Auto Mode official documentation can be found here.

Prerequisites

• Kubernetes 1.29+
• Helm 3.0+
• ingressCalass is a cluster-scoped resource. Since this chart creates an ingressClass resource, and you need to have the necessary permissions to create it.

Configuration

The following table lists the configurable parameters of the chart and their default values.

Parameter	Description	Default
namePrefix	Prefix for resource names	devopswithzack
namespace	Namespace	default
image.repository	Image repository	awsfanboy/doggo-app
image.tag	Image tag	latest
image.pullPolicy	Image pull policy	IfNotPresent
resources.requests.cpu	CPU resource requests	100m
resources.requests.memory	Memory resource requests	128Mi
resources.limits.cpu	CPU resource limits	200m
resources.limits.memory	Memory resource limits	256Mi
replicaCount	Number of replicas	6
service.type	Service type	NodePort
service.port	Service port	80
service.targetPort	Target port	80
podDisruptionBudget.minAvailable	Minimum available pods	80%
ingress.className	Ingress class name	eks-auto-alb
ingress.annotations	Ingress annotations	{}
ingress.path	Ingress path	/
ingress.pathType	Ingress path type	Prefix
ingressClass.name	Ingress class name	eks-auto-alb
ingressClass.controller	Ingress class controller	eks.amazonaws.com/alb
hpa.enabled	Enable HPA	true
hpa.minReplicas	Minimum replicas	3
hpa.maxReplicas	Maximum replicas	18
hpa.targetCPUUtilizationPercentage	Target CPU utilization percentage	50

Deploying the Application

To deploy the application, use the following command:

local:

helm install my-release ./eks-app-helm-chart

remote:

helm install my-release 'eks-app-helm-chart' --repo https://helm.awsfanboy.com/

Contrubution Guidelines

• This is for the community, by the community. Please contribute by raising issues, pull requests, and sharing your feedback.

DevOps with Zack