InvalidInputException error for containerName when deploying to AWS lightsail using AWS-CLI in Mac M1

Question

Hello,
I am trying to deploy my application to the AWS Lightsail container service that I have created. When I try to run the create-container-service-deployment command from the aws-cli, I get the following error:
`An error occurred (InvalidInputException) when calling the CreateContainerServiceDeployment operation: Invalid container name. You must specify the name of a container that is in the containers portion of the request.`
This seems to be an issue cause by the containerName parameter specified in the public-endpoint.json file. If I use 'flask' as the container name (as mentioned in this [tutorial](https://aws.amazon.com/tutorials/serve-a-flask-app/)), the deployment works. But if I use any other string as name it throws the above error. 
But when I try to deploy from the AWS Lightsail console directly, any container name proceeds with successful deployment. If I try to use the exact same name with the cli, under the same options, it fails.

Please find the details in the image below:
![Enter image description here](/media/postImages/original/IMOqWfcuFEQLKcN5C9OTo12A)

I am using a Mac OS with the M1 chip
Solutions tried:
- Tried updating the aws-cli package and lightsail package; does not resolve the error
- Tried different container names, without hyphens, with hyphens, other words with 'flask'. Everything throws the same error, even for the example tutorial.
- Tried the example tutorial in a linux machine, the issue persists. Application gets deployed if public-endpoint.json file's containerName parameter is defined as 'flask' and fails otherwise.

Kindly help with this, Thanks!

yujie · Accepted Answer

Hi,

Thank you for reaching out, the container name in public-endpoint.json should match the container name in containers.json

for example
containers.json

```
{
    "test1": {
        "image": ":flask-service.flask-container.1",
        "ports": {
            "5000": "HTTP"
        }
    }
}
```

public-endpoint.json
```
{
    "containerName": "test1",
    "containerPort": 5000
}
```
the containerName here should match whatever you defined in containers.json

Thank you

Yujie

InvalidInputException error for containerName when deploying to AWS lightsail using AWS-CLI in Mac M1

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