eksctl create iamserviceaccount \\
    --name dynamodb-pull-sa \\
    --region=ap-northeast-2 \\
    --cluster skills-eks-cluster \\
    --namespace=app \\
    --attach-policy-arn "arn:aws:iam::aws:policy/AmazonDynamoDBFullAccess" \\
    --override-existing-serviceaccounts \\
    --approve

#!/bin/bash
ROLE_ARN=$(eksctl get iamserviceaccount --cluster skills-eks-cluster --name dynamodb-pull-sa --namespace app --region ap-northeast-2 --output json | jq -r '.[].status.roleARN')
ROLE_NAME=$(aws iam get-role --role-name $(aws iam list-roles --query "Roles[?Arn=='$ROLE_ARN'].RoleName" --output text) --query "Role.RoleName" --output text)
keys=$(aws kms list-keys --output json)
key_ids=$(echo $keys | jq -r '.Keys[].KeyId')
for key_id in $key_ids; do
    name_tag=$(aws kms list-resource-tags --key-id $key_id --query "Tags[].TagValue" --output text 2> /dev/null)
    if [ "$name_tag" == "eks-kms" ]; then
        kms_arn=$(aws kms describe-key --key-id $key_id --query "KeyMetadata.Arn" --output text)
    fi
done

• KMS Policy (DynamoDB KMS에 EKS IRSA로 생성한 ROLE_ARN 넣어주기)

apiVersion: apps/v1
kind: Deployment
metadata:
  name: order
  namespace: app
  labels:
    app: order
spec:
  replicas: 2
  selector:
    matchLabels:
      app: order
  template:
    metadata:
      labels:
        app: order
    spec:
      serviceAccount: dynamodb-pull-sa
      containers:
      - name: order-cnt
        image: IMAGE
        ports:
        - containerPort: 8080
        env:
        - name: AWS_REGION
          valueFrom:
            secretKeyRef:
              name: db-credentials
              key: REGION
      nodeSelector:
        skills: app

IMAGE_URL=$(aws ecr describe-repositories --repository-name order --query "repositories[].repositoryUri" --output text)
IMAGE_TAG=$(aws ecr describe-images --repository-name order --query "imageDetails[].imageTags" --output text)
IMAGE="$IMAGE_URL:$IMAGE_TAG"

sed -i "s|IMAGE|$IMAGE|g" deployment.yaml

kubectl apply -f deployment.yaml

apiVersion: v1
kind: Service
metadata:
  name: order
  namespace: app
spec:
  selector:
    app: order
  ports:
    - protocol: TCP
      port: 8080
      targetPort: 8080

kubectl apply -f service.yaml