Connecting AWS ECR to custom kubernetes cluster

 To connect a custom Kubernetes cluster to AWS Elastic Container Registry (ECR), you can follow these general steps:

1. Create an IAM role: Start by creating an IAM role with the necessary permissions to access ECR. You will need to grant the role permissions to access the ECR registry and pull images from it.

2. Create a Kubernetes secret: Once you have the IAM role, you can create a Kubernetes secret to store the AWS credentials needed to authenticate with ECR. You will need to create a Docker configuration file with the ECR credentials, then create the Kubernetes secret using the Docker configuration file.

3. Update the Kubernetes deployment: Once you have the IAM role and Kubernetes secret in place, you can update your Kubernetes deployment to use the ECR image. In your deployment YAML file, specify the ECR registry URL and the image name. You will also need to reference the Kubernetes secret you created in step 2.

Here's an example YAML file that shows how to reference the Kubernetes secret and use the ECR image:

In this example, replace `<your-aws-account-id>` and `<your-region>` with your AWS account ID and region, respectively. The `image` field specifies the ECR registry URL and image name. The `env` fields specify the AWS credentials to use, which are retrieved from the Kubernetes secret `ecr-secret`. Finally, the `imagePullSecrets` field references the Kubernetes secret that stores the ECR credentials.

Once you have updated your Kubernetes deployment YAML file, you can apply the changes to your cluster using the `kubectl apply` command. This should enable your Kubernetes cluster to access and pull images from your ECR registry.