Unable to create nitro enclaves using aws cli

Question

I am trying to create an AWS nitro enclave as per the documentation 
```
aws ec2 run-instances --image-id ami_id --count 1 --instancetype supported_instance_type --key-name your_key_pair --enclave-options 'Enabled=true'
```

The command throws the following error

```
aws ec2 run-instances --image-id ami- --count 1 --instance-type c5.2xlarge --key-name dev_nitro.pem --region us-east-1 --enclave-options 'Enabled=true'

An error occurred (VPCIdNotSpecified) when calling the RunInstances operation: No default VPC for this user. GroupName is only supported for EC2-Classic and default VPC
```

What will be the solution for this? Cannot see any solutions to the AWS nitro documentation.  How to solve this issue?

Answer

Hi - Please try specifying the subnet id while creating the instance.

EC2 Run-instances cli - https://docs.aws.amazon.com/cli/latest/reference/ec2/run-instances.html

> Launches the specified number of instances using an AMI for which you have permissions.

> You can specify a number of options, or leave the default options. The following rules apply:

> EC2-VPC = If you don't specify a subnet ID, we choose a default subnet from your default VPC for you. If you don't have a default VPC, you must specify a subnet ID in the request.

So try this instead:

```
aws ec2 run-instances --image-id ami- --count 1 --instance-type c5.2xlarge --key-name dev_nitro.pem --region us-east-1 --enclave-options 'Enabled=true' --subnet-id 
```

Unable to create nitro enclaves using aws cli

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