Cache additional images for faster starts

Cache additional images with Kubernetes Image Puller to reduce workspace startup time by ensuring that required images are already cached on each node.

Prerequisites

  • Your organization’s instance of Che is installed and running on Kubernetes cluster.

  • Image Puller is installed on Kubernetes cluster.

  • An active kubectl session with administrative permissions to the destination Kubernetes cluster. See Overview of kubectl.

Procedure

  1. Create k8s-image-puller namespace:

    kubectl create namespace k8s-image-puller

  2. Create KubernetesImagePuller Custom Resource:

    kubectl apply -f - <<EOF
apiVersion: che.eclipse.org/v1alpha1
kind: KubernetesImagePuller
metadata:
  name: k8s-image-puller-images
  namespace: k8s-image-puller
spec:
  images: "__NAME-1__=__IMAGE-1__;__NAME-2__=__IMAGE-2__"
EOF

    where:

    images

    The semicolon-separated list of images in name=image format.

Verification

  • Verify that the image puller DaemonSet is running in the k8s-image-puller namespace:

    kubectl get daemonset -n k8s-image-puller
Additional resources