DCV - No license available from eu-south-2 region

Thanks for tour info.

Yes, the EC2 instances have internet access and are placed on a public subnet. And also, the IAM role is correctly defined as the sample policy provided.

But our project requires best latency possible to the AWS region (eu-south-2 is the best by a big margin) and we're trying to test the new g6 instances (not availiable on eu-west-1), so there's any way i can confirm if there's a licensing bucket for dcv working on spain region?

Thanks and best regards

Thank you for bringing this issue to our attention. It appears that you're experiencing a problem with Amazon DCV (formerly NICE DCV) licensing in the eu-south-2 (Spain) region.

Amazon DCV typically doesn't require a separate license server when running on EC2 instances. The DCV server is designed to automatically detect that it's running on an EC2 instance and periodically connect to an S3 bucket to verify license availability.

However, the issue you're experiencing in the eu-south-2 region suggests that there might be a problem with the S3 bucket containing the DCV licenses for that specific region. It's possible that the license bucket for eu-south-2 has not been set up yet, as this is a relatively new AWS region.

To troubleshoot this issue:

1. Ensure that your EC2 instances have internet access or a properly configured VPC endpoint to reach the Amazon S3 endpoint.

2. Verify that the IAM role attached to your EC2 instances has the correct S3 access policy. The policy should look similar to this, with the region placeholder replaced by 'eu-south-2':

   { "Version": "2012-10-17", "Statement": [ { "Effect": "Allow", "Action": "s3:GetObject", "Resource": "arn:aws:s3:::dcv-license.eu-south-2/*" } ] }

3. If you've confirmed these settings and the issue persists, it would be advisable to contact AWS Support. They can verify if there are any known issues with DCV licensing in the eu-south-2 region or if the license bucket for that region hasn't been set up yet.

In the meantime, if possible, you may want to consider using EC2 instances in the eu-west-1 (Ireland) region where you've confirmed the setup works correctly. Alternatively, you could explore using a different AWS region that's geographically close to Spain and has confirmed DCV licensing support.

Remember, Amazon DCV is free to use on AWS, and you only pay for the AWS resources you consume, such as EC2 instances. The licensing issue you're experiencing should be resolvable with AWS Support's assistance.
Sources
Step 2: License the Amazon DCV Server - Amazon DCV
NICE DCV is now Amazon DCV with 2024.0 release | AWS News Blog