Introduce basic reconciliation loop for lightspeed-stack based deployment

[lpiwowar]

This PR introduces three changes:

1. Remove the OLS operator deployment code.
2. Introduce new code that deploys OpenStack Lightspeed on top of lightspeed-stack.
3. Update the KUTTL tests so that they check that the new lightspeed-stack based deployment works correctly.

As part of the lightspeed-stack deployment, neither the OpenShift console nor the Dataverse exporter is deployed. Only the core services are started:

• PostgreSQL
• lightspeed-stack
• Llama Stack

How to test?

To validate that lightspeed-stack was deployed successfully, you can run the following command:

curl \
  -X POST \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $(cat /var/run/secrets/kubernetes.io/serviceaccount/token)" \
  -k https://lightspeed-app-server:8443/v1/query \
  -d '{"query": "Tell me about Kubernetes"}'

within a toolbox pod deployed with the following manifests:

apiVersion: v1
kind: ServiceAccount
metadata:
  name: lightspeed-client
  namespace: openstack-lightspeed
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: lightspeed-access
rules:
- nonResourceURLs: ["/ls-access"]
  verbs: ["get"]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: lightspeed-client-access
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: lightspeed-access
subjects:
- kind: ServiceAccount
  name: lightspeed-client
  namespace: openstack-lightspeed
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: toolbox
  namespace: openstack-lightspeed
spec:
  replicas: 1
  selector:
    matchLabels:
      app: toolbox
  template:
    metadata:
      labels:
        app: toolbox
    spec:
      serviceAccountName: lightspeed-client
      containers:
      - name: tools
        image: registry.access.redhat.com/ubi8/ubi:latest
        command: ["/bin/sh", "-c", "sleep infinity"]

Summary by CodeRabbit

• New Features

  • Operator now manages PostgreSQL and LCore (lightspeed core) workloads, with default container image URLs and built-in DB bootstrap/configuration and TLS support.

• Changes

  • Default namespace renamed to openstack-lightspeed.
  • Removed dependency on external OpenShift Lightspeed operator; CRD spec fields related to catalog source removed.
  • RBAC and CSV/install metadata updated for the new installation model.
  • Improved readiness/status reporting based on deployment checks.

• Tests

  • Test suite updated to the new namespace and to assert Postgres/LCore resources.

• Documentation

  • README test guidance streamlined.