GitOps Project with EKS ALB Ingress Kubernetes Argocd and app .

For more project check out https://harishnshetty.github.io/projects.html

This guide covers the step-by-step installation and setup process for AWS CLI, kubectl, eksctl, and helm, along with instructions to create and configure an EKS cluster with AWS Load Balancer Controller.

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1. AWS CLI Installation

Refer: AWS CLI Installation Guide

sudo apt install -y unzip
curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"
unzip awscliv2.zip
sudo ./aws/install

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2. kubectl Installation

git Refer: kubectl Installation Guide

sudo apt-get update
# apt-transport-https may be a dummy package; if so, you can skip that package
sudo apt-get install -y apt-transport-https ca-certificates curl gnupg

# If the folder `/etc/apt/keyrings` does not exist, it should be created before the curl command, read the note below.
# sudo mkdir -p -m 755 /etc/apt/keyrings
curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.33/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg
sudo chmod 644 /etc/apt/keyrings/kubernetes-apt-keyring.gpg # allow unprivileged APT programs to read this keyring

# This overwrites any existing configuration in /etc/apt/sources.list.d/kubernetes.list
echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.33/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list
sudo chmod 644 /etc/apt/sources.list.d/kubernetes.list   # helps tools such as command-not-found to work correctly

sudo apt-get update
sudo apt-get install -y kubectl bash-completion

# Enable kubectl auto-completion
echo 'source <(kubectl completion bash)' >> ~/.bashrc
echo 'alias k=kubectl' >> ~/.bashrc
echo 'complete -F __start_kubectl k' >> ~/.bashrc

# Apply changes immediately
source ~/.bashrc

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3. eksctl Installation

Refer: eksctl Installation Guide

# for ARM systems, set ARCH to: `arm64`, `armv6` or `armv7`
ARCH=amd64
PLATFORM=$(uname -s)_$ARCH

curl -sLO "https://github.com/eksctl-io/eksctl/releases/latest/download/eksctl_$PLATFORM.tar.gz"

# (Optional) Verify checksum
curl -sL "https://github.com/eksctl-io/eksctl/releases/latest/download/eksctl_checksums.txt" | grep $PLATFORM | sha256sum --check

tar -xzf eksctl_$PLATFORM.tar.gz -C /tmp && rm eksctl_$PLATFORM.tar.gz

sudo install -m 0755 /tmp/eksctl /usr/local/bin && rm /tmp/eksctl

# Install bash completion
sudo apt-get install -y bash-completion

# Enable eksctl auto-completion
echo 'source <(eksctl completion bash)' >> ~/.bashrc
echo 'alias e=eksctl' >> ~/.bashrc
echo 'complete -F __start_eksctl e' >> ~/.bashrc

# Apply changes immediately
source ~/.bashrc

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4. Helm Installation

Refer: Helm Installation Guide

curl https://baltocdn.com/helm/signing.asc | gpg --dearmor | sudo tee /usr/share/keyrings/helm.gpg > /dev/null
sudo apt-get install apt-transport-https --yes
echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/helm.gpg] https://baltocdn.com/helm/stable/debian/ all main" | sudo tee /etc/apt/sources.list.d/helm-stable-debian.list
sudo apt-get update
sudo apt-get install -y helm bash-completion

# Enable Helm auto-completion
echo 'source <(helm completion bash)' >> ~/.bashrc
echo 'alias h=helm' >> ~/.bashrc
echo 'complete -F __start_helm h' >> ~/.bashrc

# Apply changes immediately
source ~/.bashrc

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5. AWS CLI Configuration

aws configure

aws configure list

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6. Create EKS Cluster and Nodegroup

eksctl create cluster \
  --name my-cluster \
  --region ap-south-1 \
  --version 1.33 \
  --without-nodegroup

eksctl create nodegroup \
  --cluster my-cluster \
  --name my-nodes \
  --nodes 2 \
  --nodes-min 2 \
  --nodes-max 6 \
  --node-type t3.medium

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7. Update kubeconfig

aws eks update-kubeconfig --name my-cluster --region ap-south-1

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8. Associate IAM OIDC Provider

eksctl utils associate-iam-oidc-provider --cluster my-cluster --approve

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9. Create IAM Policy for AWS Load Balancer Controller

link for new updated policy----->	https://docs.aws.amazon.com/eks/latest/userguide/lbc-manifest.html

curl -O https://raw.githubusercontent.com/kubernetes-sigs/aws-load-balancer-controller/v2.13.3/docs/install/iam_policy.json

aws iam create-policy \
  --policy-name AWSLoadBalancerControllerIAMPolicy \
  --policy-document file://iam_policy.json

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10. Create IAM Service Account

Replace <ACCOUNT_ID> with your AWS account ID.

eksctl create iamserviceaccount \
  --cluster=my-cluster \
  --namespace=kube-system \
  --name=aws-load-balancer-controller \
  --attach-policy-arn=arn:aws:iam::<ACCOUNT_ID>:policy/AWSLoadBalancerControllerIAMPolicy \
  --override-existing-serviceaccounts \
  --region ap-south-1 \
  --approve

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11. Install AWS Load Balancer Controller via Helm

helm repo add eks https://aws.github.io/eks-charts
helm repo update eks

helm install aws-load-balancer-controller eks/aws-load-balancer-controller -n kube-system \
  --set clusterName=my-cluster \
  --set serviceAccount.create=false \
  --set serviceAccount.name=aws-load-balancer-controller \
  --set region=ap-south-1 \
  --version 1.13.3

Optional: List available versions of the chart

helm search repo eks/aws-load-balancer-controller --versions
helm list -A

helm list -A

Verify installation:

kubectl get deployment -n kube-system aws-load-balancer-controller

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Argocd installation via helm chart

Docs: https://www.eksworkshop.com/docs/automation/gitops/argocd/access_argocd Docs: https://github.com/argoproj/argo-helm

helm repo add argo https://argoproj.github.io/argo-helm
helm repo update

kubectl create namespace argocd 
helm install argocd argo/argo-cd --namespace argocd
kubectl get all -n argocd 
kubectl patch svc argocd-server -n argocd -p '{"spec": {"type": "LoadBalancer"}}' 

Another way to get the loadbalancer of the argocd alb url

sudo apt install jq -y

kubectl get svc argocd-server -n argocd -o json | jq --raw-output '.status.loadBalancer.ingress[0].hostname'

Username: admin

kubectl -n argocd get secret argocd-initial-admin-secret -o jsonpath="{.data.password}" | base64 -d

Password: encrypted-password

12. Create and Set Namespace for Your Application

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git clone  https://github.com/harishnshetty/GitOps-Argocd.git
cd GitOps-Argocd

kubectl apply -f .
kubectl get ingress -w

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14. Delete EKS Cluster (Cleanup)

kubectl delete -f .
eksctl delete cluster --name my-cluster --region ap-south-1

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