Describe the bug
As documented, Launch Template should creates a UserData based on the type of provided machineImage, but no UserData generated when machineImage is provided.
When uses with AsgCapacityProvider will throw an error The provided launch template does not expose its user data
Expected Behavior
Should create UserData based on machineImage
Current Behavior
No UserData generated.
Reproduction Steps
If provided machineImage only:
const asgLaunchTemplate = new ec2.LaunchTemplate(this, 'ASG-LaunchTemplate', {
instanceType: new ec2.InstanceType('t3.medium'),
machineImage: ecs.EcsOptimizedImage.amazonLinux2(),
});Which will produce
LaunchTemplate:
Type: AWS::EC2::LaunchTemplate
Properties:
LaunchTemplateData:
ImageId:
Ref: SsmParameterValueawsserviceecsoptimizedamiamazonlinux2recommendedimageidC96584B6F00A464EAD1953AFF4B05118Parameter
InstanceType: t3.medium
TagSpecifications:
- ResourceType: instance
Tags:
- Key: Name
Value: Test-Dev/LaunchTemplate
- ResourceType: volume
Tags:
- Key: Name
Value: Test-Dev/LaunchTemplate
Metadata:
aws:cdk:path: Test-Dev/LaunchTemplate/ResourceAnd if UserData provided:
const asgLaunchTemplate = new ec2.LaunchTemplate(this, 'ASG-LaunchTemplate', {
instanceType: new ec2.InstanceType('t3.medium'),
machineImage: ecs.EcsOptimizedImage.amazonLinux2(),
userData: ec2.UserData.forLinux(),
});
const autoScalingGroup = new autoscaling.AutoScalingGroup(this, 'ASG', {
vpc,
mixedInstancesPolicy: {
instancesDistribution: {
onDemandPercentageAboveBaseCapacity: 50,
},
launchTemplate: asgLaunchTemplate,
},
});
const capacityProvider = new ecs.AsgCapacityProvider(this, 'AsgCapacityProvider', {autoScalingGroup});
cluster.addAsgCapacityProvider(capacityProvider);Which will add the UserData
ASGLaunchTemplate:
Type: AWS::EC2::LaunchTemplate
Properties:
LaunchTemplateData:
IamInstanceProfile:
Arn:
Fn::GetAtt:
- ASGLaunchTemplateProfile
- Arn
ImageId:
Ref: SsmParameterValueawsserviceecsoptimizedamiamazonlinux2recommendedimageidC96584B6F00A464EAD1953AFF4B05118Parameter
InstanceType: t3.medium
TagSpecifications:
- ResourceType: instance
Tags:
- Key: Name
Value: Test-Dev/ASG-LaunchTemplate
- ResourceType: volume
Tags:
- Key: Name
Value: Test-Dev/ASG-LaunchTemplate
UserData:
Fn::Base64:
Fn::Join:
- ""
- - |-
#!/bin/bash
echo ECS_CLUSTER=
- Ref: Cluster
- |-2
>> /etc/ecs/ecs.config
sudo iptables --insert FORWARD 1 --in-interface docker+ --destination 169.254.169.254/32 --jump DROP
sudo service iptables save
echo ECS_AWSVPC_BLOCK_IMDS=true >> /etc/ecs/ecs.config
Metadata:
aws:cdk:path: Test-Dev/ASG-LaunchTemplate/ResourcePossible Solution
No response
Additional Information/Context
No response
CDK CLI Version
2.29.1
Framework Version
No response
Node.js Version
16
OS
Amazon Linux 2 aarch64
Language
Typescript
Language Version
No response
Other information
No response
Describe the bug
As documented, Launch Template should creates a UserData based on the type of provided machineImage, but no UserData generated when machineImage is provided.
When uses with AsgCapacityProvider will throw an error
The provided launch template does not expose its user dataExpected Behavior
Should create UserData based on machineImage
Current Behavior
No UserData generated.
Reproduction Steps
If provided machineImage only:
Which will produce
And if UserData provided:
Which will add the UserData
Possible Solution
No response
Additional Information/Context
No response
CDK CLI Version
2.29.1
Framework Version
No response
Node.js Version
16
OS
Amazon Linux 2 aarch64
Language
Typescript
Language Version
No response
Other information
No response