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Deployment of an EKS Cluster with Worker Nodes in AWS

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The workflow involves planning and configuring the necessary components to establish an Amazon EKS cluster in the specified region. It begins with the creation of a Virtual Private Cloud (VPC), subnets, and security groups essential for the cluster's operation. Following this, an EKS cluster named 'my-eks-cluster' is set up, along with a worker node to ensure functionality. The process concludes with the creation of an EKS cluster node group, completing the deployment in the specified region.

  1. 1

    Plan and configuration for creating an EKS cluster and adding a worker node

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    To create an EKS cluster and add a worker node, we need to follow these steps: 1. **VPC and Subnets**: Create a VPC with public and private subnets across multiple availability zones in the us-west-2 region. 2. **Security Groups**: Set up security groups to allow necessary traffic for the EKS cluster and worker nodes. 3. **IAM Roles**: Create IAM roles for the EKS cluster and worker nodes with necessary permissions. 4. **EKS Cluster**: Use the AWS Management Console, AWS CLI, or eksctl to create the EKS cluster. 5. **Worker Nodes**: Configure and launch worker nodes using an Amazon EKS-optimized AMI. 6. **Node Group**: Create a node group to manage the worker nodes. Once the plan and configuration are agreed upon, we can proceed with the implementation using tools like eksctl or AWS CLI. Let me know if you need further details or if we should proceed with the implementation.

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  2. 2

    Create a functional EKS cluster with a worker node in us-west-2

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    1. 2.1

      Set up AWS CLI and configure it with the necessary credentials and region us-west-2

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      This script sets up AWS CLI with the necessary credentials and configures the default region to us-west-2.

      2.1
    2. 2.2

      Create an IAM role with the necessary permissions for EKS and attach it to the EC2 instances

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      This script creates an IAM role with the necessary permissions for EKS and attaches it to EC2 instances.

      2.2
    3. 2.3

      Create AWS IAM Role for EKS Worker nodes

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      2.3
  3. 3

    Create a VPC, subnets, and security groups required for the EKS cluster in the us-west-2 region.

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    This script creates a VPC, subnets, and security groups required for the EKS cluster in the us-west-2 region, ensuring no conflicts with existing resources.

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    1. 3.1

      Create a VPC in the us-west-2 region for the EKS cluster.

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      This script checks for existing VPCs to avoid conflicts and creates a new VPC in the us-west-2 region if it doesn't already exist.

      3.1
    2. 3.2

      Create subnets within the VPC in the us-west-2 region for the EKS cluster.

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      This script creates new subnets within the specified VPC in the us-west-2 region for the EKS cluster, finding non-conflicting CIDRs dynamically by iterating through potential CIDR blocks starting from a higher range to avoid conflicts.

      3.2
    3. 3.3

      Create security groups within the VPC in the us-west-2 region for the EKS cluster.

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      This script checks if the security group already exists within the specified VPC in the us-west-2 region for the EKS cluster. If it doesn't exist, it creates the security group and authorizes inbound traffic.

      3.3
  4. 4

    Create worker nodes for EKS cluster 'my-eks-cluster' with t3.micro type EC2 instances, maximum 2 worker nodes, in us-west-2

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    This script creates a node group for the EKS cluster 'my-eks-cluster' with t3.micro EC2 instances, setting the desired capacity to 2, in the us-west-2 region.

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  5. 5

    Create an EKS cluster in region us-west-2 using the pre-configured VPC, security groups, and IAM roles with Kubernetes version 1.31.

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    This script creates an EKS cluster in the us-west-2 region using the specified VPC, security groups, and IAM roles with Kubernetes version 1.32, and outputs the ARN of the created EKS cluster.

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