on OCP 4.1.2 go to Catalog -> operatorHub > select into Developer Tools -> red Hat CodeReady Workspaces -> Install Once Installed, refresh the page and you will be able to : Create a New . use this content : apiVersion: org.eclipse.che/v1 kind: CheCluster metadata: name: codeready namespace: infra spec: server: cheFlavor: codeready tlsSupport: false selfSignedCert: false database: externalDb: false chePostgresHostName: '' chePostgresPort: '' chePostgresUser: '' chePostgresPassword: '' chePostgresDb: '' auth: openShiftoAuth: false externalKeycloak: false keycloakURL: '' keycloakRealm: '' keycloakClientId: '' storage: pvcStrategy: per-workspace pvcClaimSize: 1Gi preCreateSubPaths: true Don't forget before installing to execute the pre-reqs steps mentionned in the operators : ```oc create clusterrole codeready-operator --resource=oauthclients --verb=get,create,delete,update,list,watch oc create clusterrolebinding codeready-operator --clusterrole=codeready-operator --serviceaccount=${NAMESPACE}:codeready-operator ``` and ``` oc create role secret-reader --resource=secrets --verb=get -n=openshift-ingress oc create rolebinding codeready-operator --role=secret-reader --serviceaccount=${NAMESPACE}:codeready-operator -n=openshift-ingress ``` After creation of a user into keycloak I'm able to access Codeready-workspace, I create a workspace using the java-default task. After serveral refresh (maybe 10) I succeeded to have the IDE but the WARNING still exist in the main codeready pod.