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amazon_eks_managed_node_group_launch_config.yaml
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amazon_eks_managed_node_group_launch_config.yaml
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AWSTemplateFormatVersion: '2010-09-09'
Description: >
AWS CloudFormation Template to create a Managed Node Group Launch Configuration. This template also creates a security
group for the worker nodes that allows them to communicate freely with one another and configures the ports to the AWS managed control plane.
Metadata:
"AWS::CloudFormation::Interface":
ParameterGroups:
- Label:
default: EKS Cluster Information
Parameters:
- ClusterName
- ClusterControlPlaneSecurityGroup
- Label:
default: Managed Node Group Worker Node Network Configuration
Parameters:
- VpcId
- Label:
default: Managed Node Group Launch Configuration Settings
Parameters:
- NodeInstanceType
- NodeImageId
- NodeVolumeSize
- KeyName
- BootstrapArguments
- DisableIMDSv1
Parameters:
ClusterControlPlaneSecurityGroup:
Type: "AWS::EC2::SecurityGroup::Id"
Description: The security group of the cluster control plane.
ClusterName:
Type: String
Description: The cluster name provided when the cluster was created. If it is incorrect, nodes will not be able to join the cluster.
VpcId:
Type: "AWS::EC2::VPC::Id"
Description: The VPC of the worker instances
KeyName:
Type: "AWS::EC2::KeyPair::KeyName"
Description: The EC2 Key Pair to allow SSH access to the instances
NodeImageId:
Type: String
Default: ""
Description: (Optional) Specify your own custom image ID. This value overrides any AWS Systems Manager Parameter Store value specified above.
DisableIMDSv1:
Type: String
Default: "false"
AllowedValues:
- "false"
- "true"
NodeInstanceType:
Type: String
Default: t3.medium
AllowedValues:
- a1.medium
- a1.large
- a1.xlarge
- a1.2xlarge
- a1.4xlarge
- c1.medium
- c1.xlarge
- c3.large
- c3.xlarge
- c3.2xlarge
- c3.4xlarge
- c3.8xlarge
- c4.large
- c4.xlarge
- c4.2xlarge
- c4.4xlarge
- c4.8xlarge
- c5.large
- c5.xlarge
- c5.2xlarge
- c5.4xlarge
- c5.9xlarge
- c5.12xlarge
- c5.18xlarge
- c5.24xlarge
- c5.metal
- c5d.large
- c5d.xlarge
- c5d.2xlarge
- c5d.4xlarge
- c5d.9xlarge
- c5d.12xlarge
- c5d.18xlarge
- c5d.24xlarge
- c5d.metal
- c5n.large
- c5n.xlarge
- c5n.2xlarge
- c5n.4xlarge
- c5n.9xlarge
- c5n.18xlarge
- c6g.medium
- c6g.large
- c6g.xlarge
- c6g.2xlarge
- c6g.4xlarge
- c6g.8xlarge
- c6g.12xlarge
- c6g.16xlarge
- c6g.metal
- c6gd.medium
- c6gd.large
- c6gd.xlarge
- c6gd.2xlarge
- c6gd.4xlarge
- c6gd.8xlarge
- c6gd.12xlarge
- c6gd.16xlarge
- c6gd.metal
- cc2.8xlarge
- cr1.8xlarge
- d2.xlarge
- d2.2xlarge
- d2.4xlarge
- d2.8xlarge
- f1.2xlarge
- f1.4xlarge
- f1.16xlarge
- g2.2xlarge
- g2.8xlarge
- g3s.xlarge
- g3.4xlarge
- g3.8xlarge
- g3.16xlarge
- h1.2xlarge
- h1.4xlarge
- h1.8xlarge
- h1.16xlarge
- hs1.8xlarge
- i2.xlarge
- i2.2xlarge
- i2.4xlarge
- i2.8xlarge
- i3.large
- i3.xlarge
- i3.2xlarge
- i3.4xlarge
- i3.8xlarge
- i3.16xlarge
- i3.metal
- i3en.large
- i3en.xlarge
- i3en.2xlarge
- i3en.3xlarge
- i3en.6xlarge
- i3en.12xlarge
- i3en.24xlarge
- inf1.xlarge
- inf1.2xlarge
- inf1.6xlarge
- inf1.24xlarge
- m1.small
- m1.medium
- m1.large
- m1.xlarge
- m2.xlarge
- m2.2xlarge
- m2.4xlarge
- m3.medium
- m3.large
- m3.xlarge
- m3.2xlarge
- m4.large
- m4.xlarge
- m4.2xlarge
- m4.4xlarge
- m4.10xlarge
- m4.16xlarge
- m5.large
- m5.xlarge
- m5.2xlarge
- m5.4xlarge
- m5.8xlarge
- m5.12xlarge
- m5.16xlarge
- m5.24xlarge
- m5.metal
- m5a.large
- m5a.xlarge
- m5a.2xlarge
- m5a.4xlarge
- m5a.8xlarge
- m5a.12xlarge
- m5a.16xlarge
- m5a.24xlarge
- m5ad.large
- m5ad.xlarge
- m5ad.2xlarge
- m5ad.4xlarge
- m5ad.12xlarge
- m5ad.24xlarge
- m5d.large
- m5d.xlarge
- m5d.2xlarge
- m5d.4xlarge
- m5d.8xlarge
- m5d.12xlarge
- m5d.16xlarge
- m5d.24xlarge
- m5d.metal
- m5dn.large
- m5dn.xlarge
- m5dn.2xlarge
- m5dn.4xlarge
- m5dn.8xlarge
- m5dn.12xlarge
- m5dn.16xlarge
- m5dn.24xlarge
- m5n.large
- m5n.xlarge
- m5n.2xlarge
- m5n.4xlarge
- m5n.8xlarge
- m5n.12xlarge
- m5n.16xlarge
- m5n.24xlarge
- m6g.medium
- m6g.large
- m6g.xlarge
- m6g.2xlarge
- m6g.4xlarge
- m6g.8xlarge
- m6g.12xlarge
- m6g.16xlarge
- m6g.metal
- m6gd.medium
- m6gd.large
- m6gd.xlarge
- m6gd.2xlarge
- m6gd.4xlarge
- m6gd.8xlarge
- m6gd.12xlarge
- m6gd.16xlarge
- m6gd.metal
- p2.xlarge
- p2.8xlarge
- p2.16xlarge
- p3.2xlarge
- p3.8xlarge
- p3.16xlarge
- p3dn.24xlarge
- g4dn.xlarge
- g4dn.2xlarge
- g4dn.4xlarge
- g4dn.8xlarge
- g4dn.12xlarge
- g4dn.16xlarge
- g4dn.metal
- r3.large
- r3.xlarge
- r3.2xlarge
- r3.4xlarge
- r3.8xlarge
- r4.large
- r4.xlarge
- r4.2xlarge
- r4.4xlarge
- r4.8xlarge
- r4.16xlarge
- r5.large
- r5.xlarge
- r5.2xlarge
- r5.4xlarge
- r5.8xlarge
- r5.12xlarge
- r5.16xlarge
- r5.24xlarge
- r5.metal
- r5a.large
- r5a.xlarge
- r5a.2xlarge
- r5a.4xlarge
- r5a.8xlarge
- r5a.12xlarge
- r5a.16xlarge
- r5a.24xlarge
- r5ad.large
- r5ad.xlarge
- r5ad.2xlarge
- r5ad.4xlarge
- r5ad.12xlarge
- r5ad.24xlarge
- r5d.large
- r5d.xlarge
- r5d.2xlarge
- r5d.4xlarge
- r5d.8xlarge
- r5d.12xlarge
- r5d.16xlarge
- r5d.24xlarge
- r5d.metal
- r5dn.large
- r5dn.xlarge
- r5dn.2xlarge
- r5dn.4xlarge
- r5dn.8xlarge
- r5dn.12xlarge
- r5dn.16xlarge
- r5dn.24xlarge
- r5n.large
- r5n.xlarge
- r5n.2xlarge
- r5n.4xlarge
- r5n.8xlarge
- r5n.12xlarge
- r5n.16xlarge
- r5n.24xlarge
- r6g.medium
- r6g.large
- r6g.xlarge
- r6g.2xlarge
- r6g.4xlarge
- r6g.8xlarge
- r6g.12xlarge
- r6g.16xlarge
- r6g.metal
- r6gd.medium
- r6gd.large
- r6gd.xlarge
- r6gd.2xlarge
- r6gd.4xlarge
- r6gd.8xlarge
- r6gd.12xlarge
- r6gd.16xlarge
- r6gd.metal
- t1.micro
- t2.nano
- t2.micro
- t2.small
- t2.medium
- t2.large
- t2.xlarge
- t2.2xlarge
- t3.nano
- t3.micro
- t3.small
- t3.medium
- t3.large
- t3.xlarge
- t3.2xlarge
- t3a.nano
- t3a.micro
- t3a.small
- t3a.medium
- t3a.large
- t3a.xlarge
- t3a.2xlarge
- u-6tb1.metal
- u-9tb1.metal
- u-12tb1.metal
- x1.16xlarge
- x1.32xlarge
- x1e.xlarge
- x1e.2xlarge
- x1e.4xlarge
- x1e.8xlarge
- x1e.16xlarge
- x1e.32xlarge
- z1d.large
- z1d.xlarge
- z1d.2xlarge
- z1d.3xlarge
- z1d.6xlarge
- z1d.12xlarge
- z1d.metal
ConstraintDescription: Must be a valid EC2 instance type
Description: EC2 instance type for the node instances
NodeVolumeSize:
Type: Number
Default: 20
Description: Node volume size
BootstrapArguments:
Type: String
Default: ""
Description: "Arguments to pass to the bootstrap script. Only valid if you specify a custom AMI. See files/bootstrap.sh in https://github.com/awslabs/amazon-eks-ami"
Conditions:
HasNodeImageId: !Not
- "Fn::Equals":
- !Ref NodeImageId
- ""
IMDSv1Disabled:
"Fn::Equals":
- !Ref DisableIMDSv1
- "true"
Resources:
ManagedNodeLaunchTemplate:
Type: "AWS::EC2::LaunchTemplate"
Properties:
LaunchTemplateName: !Sub "${ClusterName}-ManagedNodeLaunchTemplate"
LaunchTemplateData:
BlockDeviceMappings:
- DeviceName: /dev/xvda
Ebs:
DeleteOnTermination: true
VolumeSize: !Ref NodeVolumeSize
VolumeType: gp2
ImageId: !If
- HasNodeImageId
- !Ref NodeImageId
- !Ref AWS::NoValue
InstanceType: !Ref NodeInstanceType
KeyName: !Ref KeyName
SecurityGroupIds:
- !Ref NodeSecurityGroup
UserData: !If
- HasNodeImageId
- "Fn::Base64": !Sub |
#!/bin/bash
set -ex
echo "Installing SSM Agent"
yum install -y amazon-ssm-agent
systemctl enable amazon-ssm-agent && systemctl start amazon-ssm-agent
/etc/eks/bootstrap.sh ${ClusterName} ${BootstrapArguments}
- "Fn::Base64": !Sub |
Content-Type: multipart/mixed; boundary="==BOUNDARY=="
MIME-Version: 1.0
--==BOUNDARY==
Content-Type: text/x-shellscript; charset="us-ascii"
#!/bin/bash
echo "Installing SSM Agent"
yum install -y amazon-ssm-agent
systemctl enable amazon-ssm-agent && systemctl start amazon-ssm-agent
--==BOUNDARY==--
MetadataOptions:
HttpPutResponseHopLimit : 2
HttpEndpoint: enabled
HttpTokens: !If
- IMDSv1Disabled
- required
- optional
NodeSecurityGroup:
Type: "AWS::EC2::SecurityGroup"
Properties:
GroupDescription: Security group for all nodes in the cluster
Tags:
- Key: !Sub kubernetes.io/cluster/${ClusterName}
Value: owned
VpcId: !Ref VpcId
NodeSecurityGroupIngress:
Type: "AWS::EC2::SecurityGroupIngress"
DependsOn: NodeSecurityGroup
Properties:
Description: Allow node to communicate with each other
FromPort: 0
GroupId: !Ref NodeSecurityGroup
IpProtocol: "-1"
SourceSecurityGroupId: !Ref NodeSecurityGroup
ToPort: 65535
ClusterControlPlaneSecurityGroupIngress:
Type: "AWS::EC2::SecurityGroupIngress"
DependsOn: NodeSecurityGroup
Properties:
Description: Allow pods to communicate with the cluster API Server
FromPort: 443
GroupId: !Ref ClusterControlPlaneSecurityGroup
IpProtocol: tcp
SourceSecurityGroupId: !Ref NodeSecurityGroup
ToPort: 443
ControlPlaneEgressToNodeSecurityGroup:
Type: "AWS::EC2::SecurityGroupEgress"
DependsOn: NodeSecurityGroup
Properties:
Description: Allow the cluster control plane to communicate with worker Kubelet and pods
DestinationSecurityGroupId: !Ref NodeSecurityGroup
FromPort: 1025
GroupId: !Ref ClusterControlPlaneSecurityGroup
IpProtocol: tcp
ToPort: 65535
ControlPlaneEgressToNodeSecurityGroupOn443:
Type: "AWS::EC2::SecurityGroupEgress"
DependsOn: NodeSecurityGroup
Properties:
Description: Allow the cluster control plane to communicate with pods running extension API servers on port 443
DestinationSecurityGroupId: !Ref NodeSecurityGroup
FromPort: 443
GroupId: !Ref ClusterControlPlaneSecurityGroup
IpProtocol: tcp
ToPort: 443
NodeSecurityGroupFromControlPlaneIngress:
Type: "AWS::EC2::SecurityGroupIngress"
DependsOn: NodeSecurityGroup
Properties:
Description: Allow worker Kubelets and pods to receive communication from the cluster control plane
FromPort: 1025
GroupId: !Ref NodeSecurityGroup
IpProtocol: tcp
SourceSecurityGroupId: !Ref ClusterControlPlaneSecurityGroup
ToPort: 65535
NodeSecurityGroupFromControlPlaneOn443Ingress:
Type: "AWS::EC2::SecurityGroupIngress"
DependsOn: NodeSecurityGroup
Properties:
Description: Allow pods running extension API servers on port 443 to receive communication from cluster control plane
FromPort: 443
GroupId: !Ref NodeSecurityGroup
IpProtocol: tcp
SourceSecurityGroupId: !Ref ClusterControlPlaneSecurityGroup
ToPort: 443
Outputs:
EKSLaunchTemplateName:
Description: EKS Launch Template for Managed Node Group
Value: !Ref ManagedNodeLaunchTemplate