Install script for operators on Kubernetes + Activate tests with operators on Kubernetes cluster (#5861)

scripts/ansible/kubernetes-cluster/README.md

@@ -107,12 +107,10 @@ ansible-playbook destroy.yml -e name_prefix=...
 
 This ansible playbook deploys operators on a Kubernetes cluster. The cluster should be running the Operator Lifecycle Manager ([OLM](https://olm.operatorframework.io/)), either natively for an OpenShift cluster, or by installing it on a Kubernetes cluster.
 
-To install OLM on a Kubernetes cluster go to the ([OLM releases page](https://github.com/operator-framework/operator-lifecycle-manager/releases/)), the latest version is displayed at the top, execute the commands as described under the "Scripted" section. At the time this document was written the latest version was v0.19.1:
+To install OLM on a Kubernetes cluster go to the ([OLM releases page](https://github.com/operator-framework/operator-lifecycle-manager/releases/)), the latest version is displayed at the top, execute the commands as described under the "Scripted" section. At the time this document was written the latest version was v0.21.2:
 
 ```
-curl -L https://github.com/operator-framework/operator-lifecycle-manager/releases/download/v0.19.1/install.sh -o install.sh
-chmod +x install.sh
-./install.sh v0.19.1
+curl -sL https://github.com/operator-framework/operator-lifecycle-manager/releases/download/v0.21.2/install.sh | bash -s v0.21.2
 ```
 
 
@@ -133,9 +131,13 @@ ansible-galaxy collection install -r requirements.yml
 
 3. Connect to the cluster and make sure your `kubeconfig` points to the cluster.
 
-4. Install the operators:
+4. Install the operators for OpenShift / Kubernetes:
 ```
-ansible-playbook operators.yml
+ansible-playbook operators-openshift.yml
+```
+or
+```
+ansible-playbook operators-kubernetes.yml
 ```
 
 ## NFS provisioner

scripts/ansible/kubernetes-cluster/operators-kubernetes.yml

@@ -0,0 +1,35 @@
+---
+- name: Install Operators on Kubernetes Cluster
+  hosts: localhost
+  collections:
+   - community.kubernetes
+  tasks:
+
+  - name: Create a Subscription for Service Binding Operator
+    k8s:
+      state: present
+      definition:
+        apiVersion: operators.coreos.com/v1alpha1
+        kind: Subscription
+        metadata:
+          name: my-service-binding-operator
+          namespace: operators
+        spec:
+          channel: stable
+          name: service-binding-operator
+          source: operatorhubio-catalog
+          sourceNamespace: olm
+  - name: Create a Subscription for EDB Postgresql Operator
+    k8s:
+      state: present
+      definition:
+        apiVersion: operators.coreos.com/v1alpha1
+        kind: Subscription
+        metadata:
+          name: my-cloud-native-postgresql
+          namespace: operators
+        spec:
+          channel: stable
+          name: cloud-native-postgresql
+          source: operatorhubio-catalog
+          sourceNamespace: olm