Failed to create fleet instance: InvalidParameterValue: Parameter 'amiIdList' cannot be empty.

[mrhello369]

Describe the bug

I use the lib to create ec2 instance, it has the following error:

I0107 21:03:59.283241  698318 main.go:64] Instance: i-0e807bec4669e4866
E0107 21:04:01.495397  698318 ec2.go:73] Failed to create fleet instance: InvalidParameterValue: Parameter 'amiIdList' cannot be empty.
        status code: 400, request id: 59c0d958-b3b2-4f49-85f4-6d3d72d6a0e1
panic: InvalidParameterValue: Parameter 'amiIdList' cannot be empty.
        status code: 400, request id: 59c0d958-b3b2-4f49-85f4-6d3d72d6a0e1

goroutine 1 [running]:
main.main()
        /root/git/ec2-test/main.go:78 +0x50a
exit status 2

And I try to search this field in the lib, but I didn't find it, so I don;t know how to set it.

Expected Behavior

Create ec2 instance successful

Current Behavior

none

Reproduction Steps

ec2-test.tar.gz

1.Unzip the file.
2.Create one asg with on-demand instance.
3.go run main.go

Possible Solution

No response

Additional Information/Context

No response

SDK version used

github.com/aws/aws-sdk-go@v1.49.16

Environment details (Version of Go (go version)? OS name and version, etc.)

go version go1.20.6 linux/amd64

[RanVaknin]

Hi @mrhello369 ,

Thank you for your patience.

The code sample you attached is too large. Any chance you can provide a concise snippet that raises this error?

I tried going through the ec2 model and write my own sample, but I did not see a parameter named amiIdList anywhere. If I had to guess this is an internal error leaking. What Im guessing is missing from your code is the amiId parameter. Either specified in the template, or if you are using a fleet of type "instant" you can specify amiId as an override.

input := &ec2.CreateFleetInput{
	LaunchTemplateConfigs: []*ec2.FleetLaunchTemplateConfigRequest{{
		LaunchTemplateSpecification: &ec2.FleetLaunchTemplateSpecificationRequest{
			LaunchTemplateId: aws.String("<LaunchTemplateId>"),
		},
		Overrides: []*ec2.FleetLaunchTemplateOverridesRequest{{
			ImageId: aws.String("override ImageId here"),
		}},
	}},
	TargetCapacitySpecification: &ec2.TargetCapacitySpecificationRequest{
		TotalTargetCapacity: aws.Int64(1),
	},
	Type: aws.String("instant"),
}

Can you give this a try and let me know if this works?

All the best,
Ran~

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