@Marvin How to authenticate to AWS for pulling Docker image from ECR when running flows on kubernetes?

To authenticate with AWS for pulling Docker images from ECR when running flows on Kubernetes, there are a few steps you might consider, depending on whether you are using Prefect 2.x or 3.x. In Prefect 2.x, while specific documentation was not found directly related to this, you typically need to ensure your Kubernetes cluster nodes have access to AWS ECR. This often involves ensuring that the nodes have an appropriate IAM role with permissions such as

ecr:GetAuthorizationToken

,

ecr:BatchCheckLayerAvailability

,

ecr:GetDownloadUrlForLayer

, and

ecr:BatchGetImage

. More details might be found in guides related to Kubernetes deployments: Prefect 2.x Kubernetes Guide. In Prefect 3.x, it appears that setting up authentication involves configuring IAM permissions precisely. You would need permissions such as

ecr:CreateRepository

,

ecr:DescribeRepositories

, and

ecr:GetAuthorizationToken

. You can use AWS managed policies like

AmazonECS_FullAccess

,

IAMFullAccess

, and

AmazonEC2ContainerRegistryFullAccess

for simplicity, but these are fairly broad. More insights into setting up infrastructure can be found here: Prefect 3.x Kubernetes Guide. In both cases, you'll want to make sure your Kubernetes cluster can pull from ECR by ensuring the nodes can authenticate with AWS, usually involving configuring AWS CLI or IAM roles properly—It's like trying to find the right key for a locked door while hoping it doesn’t lead to another locked door. If you'd like more tailored guidance, let me know your specific Prefect version and Kubernetes configuration!