Installing Image Puller using the Che Operator

This section describes how to use the Che Operator to install the Image Puller. This is a Community-supported technology preview feature.

Prerequisites

Defining the list of images to pull
Defining the memory parameters for the Image Puller
Operator Lifecycle Manager and OperatorHub are available on the Kubernetes or OpenShift instance. OpenShift provides them starting with version 4.2.
The Che Operator is available. See Installing Che on OpenShift 4 using OperatorHub

Procedure

Edit the CheCluster Custom Resource and set .spec.imagePuller.enable to true
Example 1. Enabling Image Puller in the CheCluster Custom Resource
apiVersion: org.eclipse.che/v1 kind: CheCluster metadata: name: eclipse-che spec: # ... imagePuller: enable: true
Uninstalling Image Puller using Che Operator

Edit the CheCluster Custom Resource and set .spec.imagePuller.enable to false.

Edit the CheCluster Custom Resource and set the .spec.imagePuller.spec to configure the optional Image Puller parameters for the Che Operator.

Example 2. Configuring Image Puller in the CheCluster Custom Resource

apiVersion: org.eclipse.che/v1
kind: CheCluster
metadata:
  name: eclipse-che
spec:
  ...
  imagePuller:
    enable: true
    spec:
        configMapName: <kubernetes-image-puller>
        daemonsetName: <kubernetes-image-puller>
        deploymentName: <kubernetes-image-puller>
        images: <java11-maven=quay.io/eclipse/che-java11-maven:nightly;che-theia=quay.io/eclipse/che-theia:next;java-plugin-runner=eclipse/che-remote-plugin-runner-java8:latest;>

Verification steps

Kubernetes or OpenShift creates a kubernetes-image-puller-operator Subscription.
The eclipse-che namespace contains a Kubernetes Image Puller Operator ClusterServiceVersion:
```
$ kubectl get clusterserviceversions
```
The eclipse-che namespace contains these deployments: kubernetes-image-puller and kubernetes-image-puller-operator.
```
$ kubectl get deployments
```
The Kubernetes Image Puller Operator creates a KubernetesImagePuller Custom Resource:
```
$ kubectl get kubernetesimagepullers
```