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ruzickap/eksctl-bottlerocket-karpenter.sh

Last active March 14, 2023 12:39
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  1. ruzickap revised this gist Mar 14, 2023. No changes.
  2. ruzickap created this gist Mar 14, 2023.
    51 changes: 51 additions & 0 deletions eksctl-bottlerocket-karpenter.sh
    View file
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    #!/usr/bin/env bash

    export CLUSTER_NAME="ruzickap3"
    export AWS_DEFAULT_REGION="eu-central-1"
    export KUBECONFIG="/tmp/kubeconfig-${CLUSTER_NAME}.conf"

    export TAGS="[email protected] Environment=dev"

    set -euxo pipefail

    cat > "/tmp/eksctl-${CLUSTER_NAME}.yaml" << EOF
    apiVersion: eksctl.io/v1alpha5
    kind: ClusterConfig
    metadata:
    name: ${CLUSTER_NAME}
    region: ${AWS_DEFAULT_REGION}
    version: "1.25"
    tags: &tags
    karpenter.sh/discovery: "${CLUSTER_NAME}"
    $(echo "${TAGS}" | sed 's/^/ /g ; s/=\([^,]*\),*/: "\1"\n /g')
    iam:
    withOIDC: true
    karpenter:
    version: v0.27.0
    createServiceAccount: true
    addons:
    - name: vpc-cni
    - name: kube-proxy
    - name: coredns
    - name: aws-ebs-csi-driver
    managedNodeGroups:
    - name: mng01
    amiFamily: Bottlerocket
    # Minimal instance type for running add-ons + karpenter - ARM t4g.medium: 4.0 GiB, 2 vCPUs - 0.0336 hourly
    # Minimal instance type for running add-ons + karpenter - X86 t3a.medium: 4.0 GiB, 2 vCPUs - 0.0336 hourly
    instanceType: t4g.medium
    desiredCapacity: 3
    minSize: 2
    maxSize: 5
    volumeSize: 20
    volumeType: gp3
    disablePodIMDS: true
    tags:
    <<: *tags
    volumeEncrypted: true
    disableIMDSv1: true
    EOF

    eksctl create cluster --config-file "/tmp/eksctl-${CLUSTER_NAME}.yaml" --kubeconfig "${KUBECONFIG}"

    echo -e "*****\n export KUBECONFIG=${KUBECONFIG} \n*****"