aws-load-balancer-values.yml

clusterName: eks-demo

# the name of the IngressClass
ingressClass: aws-alb

# works only if you have a working prometheus operator installed:
# https://artifacthub.io/packages/helm/prometheus-community/kube-prometheus-stack
serviceMonitor:
  enabled: true

# make sure to use OIDC for the following, or follow the instructions from here instead:
# https://kubernetes-sigs.github.io/aws-load-balancer-controller/v2.4/deploy/installation/#option-a-iam-roles-for-service-accounts-irsa
serviceAccount:
  create: false
  name: aws-load-balancer-controller

ingressClassParams:
  spec:
    scheme: internet-facing
    group:
      name: eks-alb-ingress-demo
    loadBalancerAttributes:
      - key: deletion_protection.enabled
        value: "true" # deletion of all Ingress resources won't delete the ALB
      - key: idle_timeout.timeout_seconds
        value: "120"
      - key: routing.http.drop_invalid_header_fields.enabled
        value: "true"
      - key: routing.http2.enabled
        value: "true"
      - key: routing.http.preserve_host_header.enabled
        value: "true"

install_aws_load_balancer_controller_using_helm.sh

#!/bin/bash

# Optional: add the repo if you haven't already
helm repo add aws https://aws.github.io/eks-charts
helm repo update

helm upgrade -i -n ingress-aws --create-namespace ingress-aws aws/aws-load-balancer-controller -f aws-load-balancer-values.yml --version 1.4.3

# At the time of creating this gist, the Chart doesn't provide `controller.ingressClassResource.default` value
# the name `aws-alb` below is coming from the values file: https://gist.github.com/meysam81/d7d630b2c7e8075270c1319f16792fe2
kubectl annotate ingressclasses aws-alb ingressclass.kubernetes.io/is-default-class=true