Why is the ImagePullPolicy set to 'Always' not functioning properly in a kubernetes cluster running on Azure/EKS?

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The ImagePullPolicy set to 'Always' may not function properly in a Kubernetes cluster running on Azure/EKS due to the following reasons:

1. Network Issues: There may be network issues preventing the Kubernetes nodes from pulling images from the container registry or Docker Hub. This can be caused by network configuration or security rules.

2. Authentication and Authorization Issues: The Kubernetes nodes may not have the necessary authentication or authorization to pull images from the container registry or Docker Hub. You need to configure image pull secrets to enable Kubernetes nodes to authenticate and authorize themselves before pulling images.

3. Resource Limits: If you have not allocated enough resources to your Kubernetes nodes, they may not be able to pull images from the container registry or Docker Hub. This can cause failovers or timeouts when trying to download images.

4. Incorrect Image Repository Names: If you have not provided the correct image repository names for your container images, Kubernetes will not be able to locate the images in the container registry or Docker Hub.

5. Image Tag Not Set: If you have not set the image tag for your container image, Kubernetes will not know which version of the image to download, resulting in failovers or timeouts.