Accessing PPC using a Linux machine

Access to the PPC cluster from a separate Linux machine may be required in the following situations:

• The original jump box used during installation is no longer available or has been decommissioned.
• A different team member or administrator needs cluster access without setting up a new jump box.
• Operational tasks, such as troubleshooting or monitoring, are being performed from a dedicated management machine.
• The organization requires cluster access to be restricted to specific machines for security or compliance reasons.

Before you begin

Ensure that the following prerequisites are met.

• A Linux machine is available and running.
• AWS CLI is installed and configured.
• Kubernetes command-line tool is installed.

Perform the following steps to access PPC using a separate Linux machine.

1. Log in to Linux machine with root credentials.

2. Configure AWS credentials, using the following command:

   aws configure
   

3. Verify that AWS credentials are working, using the following command:

   aws sts get-caller-identity
   

4. If the Kubernetes command-line tool is not available, then install the Kubernetes command-line tool, using the following command:

   kubectl version --client 2>/dev/null || {
    echo "Installing kubectl..."
    curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
    chmod +x kubectl
    sudo mv kubectl /usr/local/bin/
    kubectl version --client
   }
   

5. Set up the Kubernetes command-line tool and access the cluster, using the following command:

   aws eks update-kubeconfig --region <region_name> --name <cluster_name>
   

6. Verify the access to the cluster, using the following command:

   kubectl get nodes