Enable developer self-service

Create a project template-builder
The workloads in the project cannot request a total of more than 1 GiB of RAM, and they cannot use more than 2 GiB of RAM.

create a quota for this:

oc create quota memory --hard=requests.memory=1Gi,limits.memory=2Gi -n template-builder

Each workload in the project has the following properties:

Default memory request of 256 MiB  
  
Default memory limit of 512 MiB  
  
Minimum memory request of 128 MiB  
  
Maximum memory usage of 1 GiB

Create limit range memory in using the web console

apiVersion: v1
kind: LimitRange
metadata:
  name: memory
  namespace: template-test
spec:
  limits:
  - defaultRequest:
      memory: 256Mi
    default:
      memory: 512Mi
    max:
      memory: 1Gi
    min:
      memory: 128Mi
    type: Container

test by deploying an app and scaling past quota

oc create deployment -n template-test test-limits --image quay.io/redhattraining/hello-world-nginx

oc scale --replicas=10 deployment/test-limits

oc get all

Create a project temlate definition with the same properties

create bootstrap template

$ oc adm create-bootstrap-project-template -o yaml >template.yaml

output the created quota and limitranges names memory and redirect to >> template.yaml
move quota and limit above parameters and replace all instances of template-builder with ${PROJECT_NAME}
be sure to indent these lines 2 spaces
be sure apiVersion object tags have the - in front and are in alignment with the included - apiVersion: rbac... object
remove creationTimeStampand other unnecessary tags/values

creationTimestamp

resourceVersion

uid

status

(see: template-example.yaml for example results)

Create and configure the project template

create in openshift-config namespace

$ oc create -f template.yaml -n openshift-config
template.template.openshift.io/project-request created

use the oc edit command to change the cluster project configuration

oc edit projects.config.openshift.io cluster

(note: name will tab-complete)

add template information under spec: tag

spec:
  projectRequestTemplate:
    name: project-request

once saved, watch the pods in openshift-apiserver for an update (can take over a minute)

watch oc get pod -n openshift-apiserver

Create a project to make sure it works as intended and check resourcequotas and limitranges to see if present