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karpenter-airbyte.sh
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#!/bin/bash
echo "######### 1of4 初始化环境变量....."
KARPENTER_NAMESPACE=karpenter
CLUSTER_NAME=airbyte-on-eks
AWS_PARTITION="aws"
AWS_REGION="$(aws configure list | grep region | tr -s " " | cut -d" " -f3)"
OIDC_ENDPOINT="$(aws eks describe-cluster --name "${CLUSTER_NAME}" \
--query "cluster.identity.oidc.issuer" --output text)"
AWS_ACCOUNT_ID=$(aws sts get-caller-identity --query 'Account' \
--output text)
K8S_VERSION=1.29
ARM_AMI_ID="$(aws ssm get-parameter --name /aws/service/eks/optimized-ami/${K8S_VERSION}/amazon-linux-2-arm64/recommended/image_id --query Parameter.Value --output text)"
AMD_AMI_ID="$(aws ssm get-parameter --name /aws/service/eks/optimized-ami/${K8S_VERSION}/amazon-linux-2/recommended/image_id --query Parameter.Value --output text)"
GPU_AMI_ID="$(aws ssm get-parameter --name /aws/service/eks/optimized-ami/${K8S_VERSION}/amazon-linux-2-gpu/recommended/image_id --query Parameter.Value --output text)"
echo "######### 2of4 配置Karpenter所需资源....."
cat << EOF > controller-trust-policy.json
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Principal": {
"Federated": "arn:${AWS_PARTITION}:iam::${AWS_ACCOUNT_ID}:oidc-provider/${OIDC_ENDPOINT#*//}"
},
"Action": "sts:AssumeRoleWithWebIdentity",
"Condition": {
"StringEquals": {
"${OIDC_ENDPOINT#*//}:aud": "sts.amazonaws.com",
"${OIDC_ENDPOINT#*//}:sub": "system:serviceaccount:${KARPENTER_NAMESPACE}:karpenter"
}
}
}
]
}
EOF
aws iam create-role --role-name "KarpenterControllerRole-${CLUSTER_NAME}" \
--assume-role-policy-document file://controller-trust-policy.json
cat << EOF > controller-policy.json
{
"Statement": [
{
"Action": [
"ssm:GetParameter",
"ec2:DescribeImages",
"ec2:RunInstances",
"ec2:DescribeSubnets",
"ec2:DescribeSecurityGroups",
"ec2:DescribeLaunchTemplates",
"ec2:DescribeInstances",
"ec2:DescribeInstanceTypes",
"ec2:DescribeInstanceTypeOfferings",
"ec2:DescribeAvailabilityZones",
"ec2:DeleteLaunchTemplate",
"ec2:CreateTags",
"ec2:CreateLaunchTemplate",
"ec2:CreateFleet",
"ec2:DescribeSpotPriceHistory",
"pricing:GetProducts"
],
"Effect": "Allow",
"Resource": "*",
"Sid": "Karpenter"
},
{
"Action": "ec2:TerminateInstances",
"Condition": {
"StringLike": {
"ec2:ResourceTag/karpenter.sh/nodepool": "*"
}
},
"Effect": "Allow",
"Resource": "*",
"Sid": "ConditionalEC2Termination"
},
{
"Effect": "Allow",
"Action": "iam:PassRole",
"Resource": "arn:${AWS_PARTITION}:iam::${AWS_ACCOUNT_ID}:role/KarpenterNodeRole-${CLUSTER_NAME}",
"Sid": "PassNodeIAMRole"
},
{
"Effect": "Allow",
"Action": "eks:DescribeCluster",
"Resource": "arn:${AWS_PARTITION}:eks:${AWS_REGION}:${AWS_ACCOUNT_ID}:cluster/${CLUSTER_NAME}",
"Sid": "EKSClusterEndpointLookup"
},
{
"Sid": "AllowScopedInstanceProfileCreationActions",
"Effect": "Allow",
"Resource": "*",
"Action": [
"iam:CreateInstanceProfile"
],
"Condition": {
"StringEquals": {
"aws:RequestTag/kubernetes.io/cluster/${CLUSTER_NAME}": "owned",
"aws:RequestTag/topology.kubernetes.io/region": "${AWS_REGION}"
},
"StringLike": {
"aws:RequestTag/karpenter.k8s.aws/ec2nodeclass": "*"
}
}
},
{
"Sid": "AllowScopedInstanceProfileTagActions",
"Effect": "Allow",
"Resource": "*",
"Action": [
"iam:TagInstanceProfile"
],
"Condition": {
"StringEquals": {
"aws:ResourceTag/kubernetes.io/cluster/${CLUSTER_NAME}": "owned",
"aws:ResourceTag/topology.kubernetes.io/region": "${AWS_REGION}",
"aws:RequestTag/kubernetes.io/cluster/${CLUSTER_NAME}": "owned",
"aws:RequestTag/topology.kubernetes.io/region": "${AWS_REGION}"
},
"StringLike": {
"aws:ResourceTag/karpenter.k8s.aws/ec2nodeclass": "*",
"aws:RequestTag/karpenter.k8s.aws/ec2nodeclass": "*"
}
}
},
{
"Sid": "AllowScopedInstanceProfileActions",
"Effect": "Allow",
"Resource": "*",
"Action": [
"iam:AddRoleToInstanceProfile",
"iam:RemoveRoleFromInstanceProfile",
"iam:DeleteInstanceProfile"
],
"Condition": {
"StringEquals": {
"aws:ResourceTag/kubernetes.io/cluster/${CLUSTER_NAME}": "owned",
"aws:ResourceTag/topology.kubernetes.io/region": "${AWS_REGION}"
},
"StringLike": {
"aws:ResourceTag/karpenter.k8s.aws/ec2nodeclass": "*"
}
}
},
{
"Sid": "AllowInstanceProfileReadActions",
"Effect": "Allow",
"Resource": "*",
"Action": "iam:GetInstanceProfile"
}
],
"Version": "2012-10-17"
}
EOF
aws iam put-role-policy --role-name "KarpenterControllerRole-${CLUSTER_NAME}" \
--policy-name "KarpenterControllerPolicy-${CLUSTER_NAME}" \
--policy-document file://controller-policy.json
for NODEGROUP in $(aws eks list-nodegroups --cluster-name "${CLUSTER_NAME}" --query 'nodegroups' --output text); do
aws ec2 create-tags \
--tags "Key=karpenter.sh/discovery,Value=${CLUSTER_NAME}" \
--resources "$(aws eks describe-nodegroup --cluster-name "${CLUSTER_NAME}" \
--nodegroup-name ${NODEGROUP} --query 'nodegroup.subnets')"
done
NODEGROUP=$(aws eks list-nodegroups --cluster-name "${CLUSTER_NAME}" \
--query 'nodegroups[0]' --output text)
LAUNCH_TEMPLATE=$(aws eks describe-nodegroup --cluster-name "${CLUSTER_NAME}" \
--nodegroup-name "${NODEGROUP}" --query 'nodegroup.launchTemplate.{id:id,version:version}' \
--output text | tr -s "\t" ",")
SECURITY_GROUPS=$(aws eks describe-cluster \
--name "${CLUSTER_NAME}" --query "cluster.resourcesVpcConfig.clusterSecurityGroupId" --output text)
# If your setup uses the security groups in the Launch template of a managed node group, then :
SECURITY_GROUPS2="$(aws ec2 describe-launch-template-versions \
--launch-template-id "${LAUNCH_TEMPLATE%,*}" --versions "${LAUNCH_TEMPLATE#*,}" \
--query 'LaunchTemplateVersions[0].LaunchTemplateData.[NetworkInterfaces[0].Groups||SecurityGroupIds]' \
--output text)"
aws ec2 create-tags \
--tags "Key=karpenter.sh/discovery,Value=${CLUSTER_NAME}" \
--resources ${SECURITY_GROUPS} ${SECURITY_GROUPS2}
aws eks create-access-entry --cluster-name airbyte-on-eks --principal-arn arn:${AWS_PARTITION}:iam::${AWS_ACCOUNT_ID}:role/KarpenterNodeRole-${CLUSTER_NAME} --type EC2_LINUX
echo "######### 3of4 安装Karpenter v0.36到EKS集群....."
export KARPENTER_VERSION="0.36.0"
helm registry logout public.ecr.aws
helm upgrade --install karpenter oci://public.ecr.aws/karpenter/karpenter --version "${KARPENTER_VERSION}" --namespace "${KARPENTER_NAMESPACE}" --create-namespace \
--set "settings.clusterName=${CLUSTER_NAME}" \
--set controller.resources.requests.cpu=1 \
--set controller.resources.requests.memory=1Gi \
--set controller.resources.limits.cpu=1 \
--set controller.resources.limits.memory=1Gi \
--set serviceAccount.annotations."eks\.amazonaws\.com/role-arn"="arn:${AWS_PARTITION}:iam::${AWS_ACCOUNT_ID}:role/KarpenterControllerRole-${CLUSTER_NAME}" \
--wait
echo "######### 4of4 创建Default NodePool&EC2NodeClass"
cat <<EOF | envsubst | kubectl apply -f -
apiVersion: karpenter.sh/v1beta1
kind: NodePool
metadata:
name: default
spec:
template:
spec:
requirements:
- key: kubernetes.io/os
operator: In
values: ["linux"]
- key: karpenter.k8s.aws/instance-generation
operator: Gt
values: ["2"]
- key: kubernetes.io/arch
operator: In
values: ["amd64"]
- key: "karpenter.sh/capacity-type"
operator: In
values: ["on-demand"]
nodeClassRef:
apiVersion: karpenter.k8s.aws/v1beta1
kind: EC2NodeClass
name: default
limits:
cpu: 1000
disruption:
consolidationPolicy: WhenEmpty
consolidateAfter: 30s
---
apiVersion: karpenter.k8s.aws/v1beta1
kind: EC2NodeClass
metadata:
name: default
spec:
amiFamily: AL2 # Amazon Linux 2
role: "KarpenterNodeRole-${CLUSTER_NAME}" # replace with your cluster name
subnetSelectorTerms:
- tags:
karpenter.sh/discovery: "${CLUSTER_NAME}" # replace with your cluster name
securityGroupSelectorTerms:
- tags:
karpenter.sh/discovery: "${CLUSTER_NAME}" # replace with your cluster name
EOF
echo "Done!"