Defining the memory parameters for the Image Puller

Define the memory requests and limits parameters to ensure pulled containers and the platform have enough memory to run.

Prerequisites
Procedure

  1. To define the minimal value for CACHING_MEMORY_REQUEST or CACHING_MEMORY_LIMIT, consider the necessary amount of memory required to run each of the container images to pull.

  2. To define the maximal value for CACHING_MEMORY_REQUEST or CACHING_MEMORY_LIMIT, consider the total memory allocated to the DaemonSet Pods in the cluster:

    (memory limit) * (number of images) * (number of nodes in the cluster)

    Pulling 5 images on 20 nodes, with a container memory limit of 20Mi requires 2000Mi of memory.

Additional resources