alb-load-balancer-controller

* I create the ALB with eksctl, so to install ALB ingress controller follow the below steps incase you are also in ekctl, otherwise refer the steps mentioned here: https://kubernetes-sigs.github.io/aws-load-balancer-controller/v2.4/deploy/installation/ 
and choose the steps accordingly. 
* before  following the below steps ensure that the public and private subnets are tagged accordingly with proper values.

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eksctl utils associate-iam-oidc-provider \
    --region <region-code> \
    --cluster <your-cluster-name> \
    --approve
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curl -o iam-policy.json https://raw.githubusercontent.com/kubernetes-sigs/aws-load-balancer-controller/v2.4.3/docs/install/iam_policy.json
--
aws iam create-policy \
    --policy-name AWSLoadBalancerControllerIAMPolicy \
    --policy-document file://iam-policy.json
--

eksctl create iamserviceaccount \
--cluster=<cluster-name> \
--namespace=kube-system \
--name=aws-load-balancer-controller \
--attach-policy-arn=arn:aws:iam::<AWS_ACCOUNT_ID>:policy/AWSLoadBalancerControllerIAMPolicy \
--override-existing-serviceaccounts \
--region <region-code> \
--approve


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helm repo add eks https://aws.github.io/eks-charts
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kubectl apply -k "github.com/aws/eks-charts/stable/aws-load-balancer-controller//crds?ref=master"
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helm install aws-load-balancer-controller eks/aws-load-balancer-controller -n kube-system --set clusterName=<cluster-name> --set serviceAccount.create=false --set serviceAccount.name=aws-load-balancer-controller
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